STParsedJSON_test.cpp

#include <test/jtx.h>
 
#include <xrpl/beast/unit_test.h>
#include <xrpl/json/json_reader.h>
#include <xrpl/protocol/STNumber.h>
#include <xrpl/protocol/STParsedJSON.h>
#include <xrpl/protocol/STXChainBridge.h>
#include <xrpl/protocol/st.h>
 
namespace xrpl {
 
class STParsedJSON_test : public beast::unit_test::suite
{
    static bool
    parseJSONString(std::string const& json, Json::Value& to)
    {
        Json::Reader reader;
        return reader.parse(json, to) && to.isObject();
    }
 
    void
    testUInt8()
    {
        testcase("UInt8");
        {
            Json::Value j;
            j[sfCloseResolution] = 255;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfCloseResolution));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU8(sfCloseResolution) == 255);
        }
 
        // test with uint value
        {
            Json::Value j;
            j[sfCloseResolution] = 255u;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfCloseResolution));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU8(sfCloseResolution) == 255);
        }
 
        // Test with string value
        {
            Json::Value j;
            j[sfCloseResolution] = "255";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfCloseResolution));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU8(sfCloseResolution) == 255);
        }
 
        // Test min value for uint8
        {
            Json::Value j;
            j[sfCloseResolution] = 0;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU8(sfCloseResolution) == 0);
        }
 
        // Test out of range value for UInt8 (negative)
        {
            Json::Value j;
            j[sfCloseResolution] = -1;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test out of range value for UInt8 (too large)
        {
            Json::Value j;
            j[sfCloseResolution] = 256;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test bad_type (not a string/int/uint)
        {
            Json::Value j;
            j[sfCloseResolution] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test bad_type (not a string/int/uint)
        {
            Json::Value j;
            j[sfCloseResolution] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testUInt16()
    {
        testcase("UInt16");
        // Test with int value
        {
            Json::Value j;
            j[sfLedgerEntryType] = 65535;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfLedgerEntryType));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU16(sfLedgerEntryType) == 65535);
        }
 
        // Test with uint value
        {
            Json::Value j;
            j[sfLedgerEntryType] = 65535u;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfLedgerEntryType));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU16(sfLedgerEntryType) == 65535);
        }
 
        // Test with string value
        {
            Json::Value j;
            j[sfLedgerEntryType] = "65535";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfLedgerEntryType));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU16(sfLedgerEntryType) == 65535);
        }
 
        // Test min value for uint16
        {
            Json::Value j;
            j[sfLedgerEntryType] = 0;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU16(sfLedgerEntryType) == 0);
        }
 
        // Test out of range value for UInt16 (negative)
        {
            Json::Value j;
            j[sfLedgerEntryType] = -1;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test out of range value for UInt16 (too large)
        {
            Json::Value j;
            j[sfLedgerEntryType] = 65536;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test string value out of range
        {
            Json::Value j;
            j[sfLedgerEntryType] = "65536";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test bad_type (not a string/int/uint)
        {
            Json::Value j;
            j[sfLedgerEntryType] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test bad_type (not a string/int/uint)
        {
            Json::Value j;
            j[sfLedgerEntryType] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid input for other field
        {
            Json::Value j;
            j[sfTransferFee] = "Payment";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testUInt32()
    {
        testcase("UInt32");
        {
            Json::Value j;
            j[sfNetworkID] = 4294967295u;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfNetworkID));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU32(sfNetworkID) == 4294967295u);
        }
 
        // Test with string value
        {
            Json::Value j;
            j[sfNetworkID] = "4294967295";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfNetworkID));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU32(sfNetworkID) == 4294967295u);
        }
 
        // Test min value for uint32
        {
            Json::Value j;
            j[sfNetworkID] = 0;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU32(sfNetworkID) == 0);
        }
 
        // Test out of range value for uint32 (negative)
        {
            Json::Value j;
            j[sfNetworkID] = -1;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test string value out of range
        {
            Json::Value j;
            j[sfNetworkID] = "4294967296";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test bad_type (arrayValue)
        {
            Json::Value j;
            j[sfNetworkID] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test bad_type (objectValue)
        {
            Json::Value j;
            j[sfNetworkID] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testUInt64()
    {
        testcase("UInt64");
        {
            Json::Value j;
            j[sfIndexNext] = "ffffffffffffffff";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfIndexNext));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU64(sfIndexNext) == 18446744073709551615ull);
        }
 
        // Test min value for uint64
        {
            Json::Value j;
            j[sfIndexNext] = 0;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldU64(sfIndexNext) == 0ull);
        }
 
        // Test out of range value for uint64 (negative)
        {
            Json::Value j;
            j[sfIndexNext] = -1;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // NOTE: the JSON parser doesn't support > UInt32, so those values must
        // be in hex
        // Test string value out of range
        // string is interpreted as hex
        {
            Json::Value j;
            j[sfIndexNext] = "10000000000000000";  // uint64 max + 1 (in hex)
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test hex string value with 0x prefix (should fail)
        {
            Json::Value j;
            j[sfIndexNext] = "0xabcdefabcdef";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test hex string value with invalid characters
        {
            Json::Value j;
            j[sfIndexNext] = "abcdefga";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // test arrayValue
        {
            Json::Value j;
            j[sfIndexNext] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // test objectValue
        {
            Json::Value j;
            j[sfIndexNext] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testUInt128()
    {
        testcase("UInt128");
        {
            Json::Value j;
            j[sfEmailHash] = "0123456789ABCDEF0123456789ABCDEF";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfEmailHash));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldH128(sfEmailHash).size() == 16);
            std::array<uint8_t, 16> const expected = {
                0x01,
                0x23,
                0x45,
                0x67,
                0x89,
                0xAB,
                0xCD,
                0xEF,
                0x01,
                0x23,
                0x45,
                0x67,
                0x89,
                0xAB,
                0xCD,
                0xEF};
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldH128(sfEmailHash) == uint128{expected});
        }
 
        // Valid lowercase hex string for UInt128
        {
            Json::Value j;
            j[sfEmailHash] = "0123456789abcdef0123456789abcdef";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfEmailHash));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldH128(sfEmailHash).size() == 16);
        }
 
        // Empty string for UInt128 (should be valid, all zero)
        {
            Json::Value j;
            j[sfEmailHash] = "";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfEmailHash));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            auto const& h128 = obj.object->getFieldH128(sfEmailHash);
            BEAST_EXPECT(h128.size() == 16);
            bool const allZero =
                std::all_of(h128.begin(), h128.end(), [](auto b) { return b == 0; });
            BEAST_EXPECT(allZero);
        }
 
        // Odd-length hex string for UInt128 (should fail)
        {
            Json::Value j;
            j[sfEmailHash] = "0123456789ABCDEF0123456789ABCDE";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Non-hex string for UInt128 (should fail)
        {
            Json::Value j;
            j[sfEmailHash] = "nothexstring";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Hex string too short for UInt128 (should fail)
        {
            Json::Value j;
            j[sfEmailHash] = "01234567";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Hex string too long for UInt128 (should fail)
        {
            Json::Value j;
            j[sfEmailHash] = "0123456789ABCDEF0123456789ABCDEF00";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Array value for UInt128 (should fail)
        {
            Json::Value j;
            j[sfEmailHash] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Object value for UInt128 (should fail)
        {
            Json::Value j;
            j[sfEmailHash] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testUInt160()
    {
        testcase("UInt160");
        {
            Json::Value j;
            j[sfTakerPaysCurrency] = "0123456789ABCDEF0123456789ABCDEF01234567";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfTakerPaysCurrency));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldH160(sfTakerPaysCurrency).size() == 20);
            std::array<uint8_t, 20> const expected = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD,
                                                      0xEF, 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB,
                                                      0xCD, 0xEF, 0x01, 0x23, 0x45, 0x67};
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldH160(sfTakerPaysCurrency) == uint160{expected});
        }
        // Valid lowercase hex string for UInt160
        {
            Json::Value j;
            j[sfTakerPaysCurrency] = "0123456789abcdef0123456789abcdef01234567";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfTakerPaysCurrency));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldH160(sfTakerPaysCurrency).size() == 20);
        }
 
        // Empty string for UInt160 (should be valid, all zero)
        {
            Json::Value j;
            j[sfTakerPaysCurrency] = "";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfTakerPaysCurrency));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            auto const& h160 = obj.object->getFieldH160(sfTakerPaysCurrency);
            BEAST_EXPECT(h160.size() == 20);
            bool const allZero =
                std::all_of(h160.begin(), h160.end(), [](auto b) { return b == 0; });
            BEAST_EXPECT(allZero);
        }
 
        // Non-hex string for UInt160 (should fail)
        {
            Json::Value j;
            j[sfTakerPaysCurrency] = "nothexstring";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Hex string too short for UInt160 (should fail)
        {
            Json::Value j;
            j[sfTakerPaysCurrency] = "01234567";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Hex string too long for UInt160 (should fail)
        {
            Json::Value j;
            j[sfTakerPaysCurrency] = "0123456789ABCDEF0123456789ABCDEF0123456789";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Array value for UInt160 (should fail)
        {
            Json::Value j;
            j[sfTakerPaysCurrency] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Object value for UInt160 (should fail)
        {
            Json::Value j;
            j[sfTakerPaysCurrency] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testUInt192()
    {
        testcase("UInt192");
        {
            Json::Value j;
            j[sfMPTokenIssuanceID] = "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfMPTokenIssuanceID));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldH192(sfMPTokenIssuanceID).size() == 24);
            std::array<uint8_t, 24> const expected = {
                0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
                0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldH192(sfMPTokenIssuanceID) == uint192{expected});
        }
 
        // Valid lowercase hex string for UInt192
        {
            Json::Value j;
            j[sfMPTokenIssuanceID] = "ffffffffffffffffffffffffffffffffffffffffffffffff";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfMPTokenIssuanceID));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldH192(sfMPTokenIssuanceID).size() == 24);
        }
 
        // Empty string for UInt192 (should be valid, all zero)
        {
            Json::Value j;
            j[sfMPTokenIssuanceID] = "";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfMPTokenIssuanceID));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            auto const& h192 = obj.object->getFieldH192(sfMPTokenIssuanceID);
            BEAST_EXPECT(h192.size() == 24);
            bool const allZero =
                std::all_of(h192.begin(), h192.end(), [](auto b) { return b == 0; });
            BEAST_EXPECT(allZero);
        }
 
        // Odd-length hex string for UInt192 (should fail)
        {
            Json::Value j;
            j[sfMPTokenIssuanceID] = "0123456789ABCDEF0123456789ABCDEF0123456789ABCDE";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Non-hex string for UInt192 (should fail)
        {
            Json::Value j;
            j[sfMPTokenIssuanceID] = "nothexstring";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Hex string too short for UInt192 (should fail)
        {
            Json::Value j;
            j[sfMPTokenIssuanceID] = "01234567";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Hex string too long for UInt192 (should fail)
        {
            Json::Value j;
            j[sfMPTokenIssuanceID] = "0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF00";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Array value for UInt192 (should fail)
        {
            Json::Value j;
            j[sfMPTokenIssuanceID] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Object value for UInt192 (should fail)
        {
            Json::Value j;
            j[sfMPTokenIssuanceID] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testUInt256()
    {
        testcase("UInt256");
        // Test with valid hex string for UInt256
        {
            Json::Value j;
            j[sfLedgerHash] =
                "0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCD"
                "EF";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfLedgerHash));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldH256(sfLedgerHash).size() == 32);
            std::array<uint8_t, 32> const expected = {
                0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23, 0x45,
                0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB,
                0xCD, 0xEF, 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF};
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldH256(sfLedgerHash) == uint256{expected});
        }
        // Valid lowercase hex string for UInt256
        {
            Json::Value j;
            j[sfLedgerHash] =
                "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd"
                "ef";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfLedgerHash));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldH256(sfLedgerHash).size() == 32);
        }
 
        // Empty string for UInt256 (should be valid, all zero)
        {
            Json::Value j;
            j[sfLedgerHash] = "";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfLedgerHash));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            auto const& h256 = obj.object->getFieldH256(sfLedgerHash);
            BEAST_EXPECT(h256.size() == 32);
            bool const allZero =
                std::all_of(h256.begin(), h256.end(), [](auto b) { return b == 0; });
            BEAST_EXPECT(allZero);
        }
 
        // Odd-length hex string for UInt256 (should fail)
        {
            Json::Value j;
            j[sfLedgerHash] =
                "0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCD"
                "E";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Non-hex string for UInt256 (should fail)
        {
            Json::Value j;
            j[sfLedgerHash] = "nothexstring";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Hex string too short for UInt256 (should fail)
        {
            Json::Value j;
            j[sfLedgerHash] = "01234567";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Hex string too long for UInt256 (should fail)
        {
            Json::Value j;
            j[sfLedgerHash] =
                "0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCD"
                "EF00";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Array value for UInt256 (should fail)
        {
            Json::Value j;
            j[sfLedgerHash] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Object value for UInt256 (should fail)
        {
            Json::Value j;
            j[sfLedgerHash] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testInt32()
    {
        testcase("Int32");
        {
            Json::Value j;
            int const minInt32 = -2147483648;
            j[sfLoanScale] = minInt32;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            if (BEAST_EXPECT(obj.object->isFieldPresent(sfLoanScale)))
            {
                // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
                BEAST_EXPECT(obj.object->getFieldI32(sfLoanScale) == minInt32);
            }
        }
 
        // max value
        {
            Json::Value j;
            int const maxInt32 = 2147483647;
            j[sfLoanScale] = maxInt32;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            if (BEAST_EXPECT(obj.object->isFieldPresent(sfLoanScale)))
            {
                // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
                BEAST_EXPECT(obj.object->getFieldI32(sfLoanScale) == maxInt32);
            }
        }
 
        // max uint value
        {
            Json::Value j;
            unsigned int const maxUInt32 = 2147483647u;
            j[sfLoanScale] = maxUInt32;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            if (BEAST_EXPECT(obj.object->isFieldPresent(sfLoanScale)))
            {
                BEAST_EXPECT(
                    // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
                    obj.object->getFieldI32(sfLoanScale) == static_cast<int32_t>(maxUInt32));
            }
        }
 
        // Test with string value
        {
            Json::Value j;
            j[sfLoanScale] = "2147483647";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            if (BEAST_EXPECT(obj.object->isFieldPresent(sfLoanScale)))
            {
                // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
                BEAST_EXPECT(obj.object->getFieldI32(sfLoanScale) == 2147483647u);
            }
        }
 
        // Test with string negative value
        {
            Json::Value j;
            int const value = -2147483648;
            j[sfLoanScale] = std::to_string(value);
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            if (BEAST_EXPECT(obj.object->isFieldPresent(sfLoanScale)))
            {
                // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
                BEAST_EXPECT(obj.object->getFieldI32(sfLoanScale) == value);
            }
        }
 
        // Test out of range value for int32 (negative)
        {
            Json::Value j;
            j[sfLoanScale] = "-2147483649";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test out of range value for int32 (positive)
        {
            Json::Value j;
            j[sfLoanScale] = 2147483648u;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test string value out of range
        {
            Json::Value j;
            j[sfLoanScale] = "2147483648";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test bad_type (arrayValue)
        {
            Json::Value j;
            j[sfLoanScale] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test bad_type (objectValue)
        {
            Json::Value j;
            j[sfLoanScale] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testBlob()
    {
        testcase("Blob");
        // Test with valid hex string for blob
        {
            Json::Value j;
            j[sfPublicKey] = "DEADBEEF";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfPublicKey));
            auto const& blob =
                obj.object->getFieldVL(sfPublicKey);  // NOLINT(bugprone-unchecked-optional-access)
            BEAST_EXPECT(blob.size() == 4);
            BEAST_EXPECT(blob[0] == 0xDE);
            BEAST_EXPECT(blob[1] == 0xAD);
            BEAST_EXPECT(blob[2] == 0xBE);
            BEAST_EXPECT(blob[3] == 0xEF);
        }
 
        // Test empty string for blob (should be valid, size 0)
        {
            Json::Value j;
            j[sfPublicKey] = "";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfPublicKey));
            auto const& blob =
                obj.object->getFieldVL(sfPublicKey);  // NOLINT(bugprone-unchecked-optional-access)
            BEAST_EXPECT(blob.empty());
        }
 
        // Test lowercase hex string for blob
        {
            Json::Value j;
            j[sfPublicKey] = "deadbeef";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfPublicKey));
            auto const& blob =
                obj.object->getFieldVL(sfPublicKey);  // NOLINT(bugprone-unchecked-optional-access)
            BEAST_EXPECT(blob.size() == 4);
            BEAST_EXPECT(blob[0] == 0xDE);
            BEAST_EXPECT(blob[1] == 0xAD);
            BEAST_EXPECT(blob[2] == 0xBE);
            BEAST_EXPECT(blob[3] == 0xEF);
        }
 
        // Test non-hex string for blob (should fail)
        {
            Json::Value j;
            j[sfPublicKey] = "XYZ123";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test array value for blob (should fail)
        {
            Json::Value j;
            j[sfPublicKey] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test object value for blob (should fail)
        {
            Json::Value j;
            j[sfPublicKey] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testVector256()
    {
        testcase("Vector256");
        // Test with valid array of hex strings for Vector256
        {
            Json::Value j;
            Json::Value arr(Json::arrayValue);
            arr.append(
                "0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0123456789ABCD"
                "EF");
            arr.append(
                "FEDCBA9876543210FEDCBA9876543210FEDCBA9876543210FEDCBA98765432"
                "10");
            j[sfHashes] = arr;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfHashes));
            auto const& vec =
                obj.object->getFieldV256(sfHashes);  // NOLINT(bugprone-unchecked-optional-access)
            BEAST_EXPECT(vec.size() == 2);
            BEAST_EXPECT(to_string(vec[0]) == arr[0u].asString());
            BEAST_EXPECT(to_string(vec[1]) == arr[1u].asString());
        }
        // Test empty array for Vector256 (should be valid, size 0)
        {
            Json::Value j;
            Json::Value const arr(Json::arrayValue);
            j[sfHashes] = arr;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfHashes));
            auto const& vec =
                obj.object->getFieldV256(sfHashes);  // NOLINT(bugprone-unchecked-optional-access)
            BEAST_EXPECT(vec.empty());
        }
 
        // Test array with invalid hex string (should fail)
        {
            Json::Value j;
            Json::Value arr(Json::arrayValue);
            arr.append("nothexstring");
            j[sfHashes] = arr;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test array with string of wrong length (should fail)
        {
            Json::Value j;
            Json::Value arr(Json::arrayValue);
            arr.append("0123456789ABCDEF");  // too short for uint256
            j[sfHashes] = arr;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test array with non-string element (should fail)
        {
            Json::Value j;
            Json::Value arr(Json::arrayValue);
            arr.append(12345);
            j[sfHashes] = arr;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test non-array value for Vector256 (should fail)
        {
            Json::Value j;
            j[sfHashes] = "notanarray";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test array with object element (should fail)
        {
            Json::Value j;
            Json::Value arr(Json::arrayValue);
            Json::Value objElem(Json::objectValue);
            objElem["foo"] = "bar";
            arr.append(objElem);
            j[sfHashes] = arr;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testAccount()
    {
        testcase("Account");
        // Test with valid base58 string for AccountID
        {
            Json::Value j;
            j[sfAccount] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfAccount));
            auto const& acct =
                obj.object->getAccountID(sfAccount);  // NOLINT(bugprone-unchecked-optional-access)
            BEAST_EXPECT(acct.size() == 20);
            BEAST_EXPECT(toBase58(acct) == "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh");
        }
 
        // Valid hex string for AccountID
        {
            Json::Value j;
            j[sfAccount] = "000102030405060708090A0B0C0D0E0F10111213";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfAccount));
            auto const& acct =
                obj.object->getAccountID(sfAccount);  // NOLINT(bugprone-unchecked-optional-access)
            BEAST_EXPECT(acct.size() == 20);
        }
 
        // Invalid base58 string for AccountID
        {
            Json::Value j;
            j[sfAccount] = "notAValidBase58Account";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid hex string for AccountID (too short)
        {
            Json::Value j;
            j[sfAccount] = "001122334455";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid hex string for AccountID (too long)
        {
            Json::Value j;
            j[sfAccount] = "000102030405060708090A0B0C0D0E0F101112131415";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid hex string for AccountID (bad chars)
        {
            Json::Value j;
            j[sfAccount] = "000102030405060708090A0B0C0D0E0F1011121G";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Empty string for AccountID (should fail)
        {
            Json::Value j;
            j[sfAccount] = "";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Array value for AccountID (should fail)
        {
            Json::Value j;
            j[sfAccount] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Object value for AccountID (should fail)
        {
            Json::Value j;
            j[sfAccount] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testCurrency()
    {
        testcase("Currency");
        // Test with valid ISO code for currency
        {
            Json::Value j;
            j[sfBaseAsset] = "USD";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfBaseAsset));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            auto const& curr = obj.object->getFieldCurrency(sfBaseAsset);
            BEAST_EXPECT(curr.currency().size() == 20);
        }
 
        // Valid ISO code
        {
            Json::Value j;
            j[sfBaseAsset] = "EUR";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfBaseAsset));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            auto const& curr = obj.object->getFieldCurrency(sfBaseAsset);
            BEAST_EXPECT(curr.currency().size() == 20);
        }
 
        // Valid hex string for currency
        {
            Json::Value j;
            j[sfBaseAsset] = "0123456789ABCDEF01230123456789ABCDEF0123";
            STParsedJSONObject obj("Test", j);
            if (BEAST_EXPECT(obj.object); obj.object.has_value())
            {
                BEAST_EXPECT(obj.object->isFieldPresent(sfBaseAsset));
                auto const& curr = obj.object->getFieldCurrency(sfBaseAsset);
                BEAST_EXPECT(curr.currency().size() == 20);
            }
        }
 
        // Invalid ISO code (too long)
        {
            Json::Value j;
            j[sfBaseAsset] = "USDD";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // lowercase ISO code
        {
            Json::Value j;
            j[sfBaseAsset] = "usd";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfBaseAsset));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            auto const& curr = obj.object->getFieldCurrency(sfBaseAsset);
            BEAST_EXPECT(curr.currency().size() == 20);
        }
 
        // Invalid hex string (too short)
        {
            Json::Value j;
            j[sfBaseAsset] = "0123456789AB";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid hex string (too long)
        {
            Json::Value j;
            j[sfBaseAsset] = "0123456789ABCDEF0123456789";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Empty string for currency (should fail)
        {
            Json::Value j;
            j[sfBaseAsset] = "";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfBaseAsset));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            auto const& curr = obj.object->getFieldCurrency(sfBaseAsset);
            BEAST_EXPECT(curr.currency().size() == 20);
        }
 
        // Array value for currency (should fail)
        {
            Json::Value j;
            j[sfBaseAsset] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Object value for currency (should fail)
        {
            Json::Value j;
            j[sfBaseAsset] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testAmount()
    {
        testcase("Amount");
        // Test with string value for Amount
        {
            Json::Value j;
            j[sfAmount] = "100000000000000000";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfAmount));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldAmount(sfAmount) == STAmount(100000000000000000ull));
        }
 
        // Test with int value for Amount
        {
            Json::Value j;
            j[sfAmount] = 4294967295u;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfAmount));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldAmount(sfAmount) == STAmount(4294967295u));
        }
 
        // Test with decimal string for Amount (should fail)
        {
            Json::Value j;
            j[sfAmount] = "123.45";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with empty string for Amount (should fail)
        {
            Json::Value j;
            j[sfAmount] = "";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with non-numeric string for Amount (should fail)
        {
            Json::Value j;
            j[sfAmount] = "notanumber";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with object value for Amount (should fail)
        {
            Json::Value j;
            j[sfAmount] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testPathSet()
    {
        testcase("PathSet");
        // Valid test: single path with single element
        {
            Json::Value j;
            Json::Value path(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem["account"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            elem["currency"] = "USD";
            elem["issuer"] = "rPT1Sjq2YGrBMTttX4GZHjKu9dyfzbpAYe";
            path.append(elem);
            Json::Value pathset(Json::arrayValue);
            pathset.append(path);
            j[sfPaths] = pathset;
            STParsedJSONObject obj("Test", j);
            if (BEAST_EXPECT(obj.object.has_value()))
            {
                // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
                BEAST_EXPECT(obj.object->isFieldPresent(sfPaths));
                // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
                auto const& ps = obj.object->getFieldPathSet(sfPaths);
                BEAST_EXPECT(!ps.empty());
                BEAST_EXPECT(ps.size() == 1);
                BEAST_EXPECT(ps[0].size() == 1);
                BEAST_EXPECT(
                    ps[0][0].getAccountID() ==
                    parseBase58<AccountID>("rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh"));
                BEAST_EXPECT(to_string(ps[0][0].getCurrency()) == "USD");
                BEAST_EXPECT(
                    ps[0][0].getIssuerID() ==
                    parseBase58<AccountID>("rPT1Sjq2YGrBMTttX4GZHjKu9dyfzbpAYe"));
            }
        }
 
        // Valid test: non-standard currency code
        {
            Json::Value j;
            Json::Value path(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem["account"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            elem["currency"] = "0123456789ABCDEF01230123456789ABCDEF0123";
            elem["issuer"] = "rPT1Sjq2YGrBMTttX4GZHjKu9dyfzbpAYe";
            path.append(elem);
            Json::Value pathset(Json::arrayValue);
            pathset.append(path);
            j[sfPaths] = pathset;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            BEAST_EXPECT(
                obj.object->isFieldPresent(sfPaths));  // NOLINT(bugprone-unchecked-optional-access)
            auto const& ps =
                obj.object->getFieldPathSet(sfPaths);  // NOLINT(bugprone-unchecked-optional-access)
            BEAST_EXPECT(!ps.empty());
        }
 
        // Test with non-array value for PathSet (should fail)
        {
            Json::Value j;
            j[sfPaths] = "notanarray";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with array containing non-array element (should fail)
        {
            Json::Value j;
            Json::Value pathset(Json::arrayValue);
            pathset.append("notanarray");
            j[sfPaths] = pathset;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with array containing array with non-object element (should
        // fail)
        {
            Json::Value j;
            Json::Value path(Json::arrayValue);
            path.append("notanobject");
            Json::Value pathset(Json::arrayValue);
            pathset.append(path);
            j[sfPaths] = pathset;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with array containing array with object missing required keys
        // (should fail)
        {
            Json::Value j;
            Json::Value path(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem["foo"] = "bar";  // not a valid path element key
            path.append(elem);
            Json::Value pathset(Json::arrayValue);
            pathset.append(path);
            j[sfPaths] = pathset;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with array containing array with object with invalid account
        // value (should fail)
        {
            Json::Value j;
            Json::Value path(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem["account"] = "notAValidBase58Account";
            path.append(elem);
            Json::Value pathset(Json::arrayValue);
            pathset.append(path);
            j[sfPaths] = pathset;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with account not string (should fail)
        {
            Json::Value j;
            Json::Value path(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem["account"] = 12345;
            path.append(elem);
            Json::Value pathset(Json::arrayValue);
            pathset.append(path);
            j[sfPaths] = pathset;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with currency not string (should fail)
        {
            Json::Value j;
            Json::Value path(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem["currency"] = 12345;
            path.append(elem);
            Json::Value pathset(Json::arrayValue);
            pathset.append(path);
            j[sfPaths] = pathset;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with non-standard currency not hex (should fail)
        {
            Json::Value j;
            Json::Value path(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem["currency"] = "notAValidCurrency";
            path.append(elem);
            Json::Value pathset(Json::arrayValue);
            pathset.append(path);
            j[sfPaths] = pathset;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with issuer not string (should fail)
        {
            Json::Value j;
            Json::Value path(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem["issuer"] = 12345;
            path.append(elem);
            Json::Value pathset(Json::arrayValue);
            pathset.append(path);
            j[sfPaths] = pathset;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with issuer not base58 (should fail)
        {
            Json::Value j;
            Json::Value path(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem["issuer"] = "notAValidBase58Account";
            path.append(elem);
            Json::Value pathset(Json::arrayValue);
            pathset.append(path);
            j[sfPaths] = pathset;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testIssue()
    {
        testcase("Issue");
        // Valid Issue: currency and issuer as base58
        {
            Json::Value j;
            Json::Value issueJson(Json::objectValue);
            issueJson["currency"] = "USD";
            issueJson["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            j[sfAsset] = issueJson;
            STParsedJSONObject obj("Test", j);
            if (BEAST_EXPECT(obj.object.has_value()))
            {
                // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
                BEAST_EXPECT(obj.object->isFieldPresent(sfAsset));
                auto const& issueField =
                    (*obj.object)[sfAsset];  // NOLINT(bugprone-unchecked-optional-access)
                auto const issue = issueField.value().get<Issue>();
                BEAST_EXPECT(issue.currency.size() == 20);
                BEAST_EXPECT(to_string(issue.currency) == "USD");
                BEAST_EXPECT(issue.account.size() == 20);
                BEAST_EXPECT(
                    issue.account == parseBase58<AccountID>("rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh"));
            }
        }
 
        // Valid Issue: currency as hex
        {
            Json::Value j;
            Json::Value issueJson(Json::objectValue);
            issueJson["currency"] = "0123456789ABCDEF01230123456789ABCDEF0123";
            issueJson["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            j[sfAsset] = issueJson;
            STParsedJSONObject obj("Test", j);
            if (BEAST_EXPECT(obj.object); obj.object.has_value())
            {
                BEAST_EXPECT(obj.object->isFieldPresent(sfAsset));
                auto const& issueField = (*obj.object)[sfAsset];
                auto const issue = issueField.value().get<Issue>();
                BEAST_EXPECT(issue.currency.size() == 20);
                BEAST_EXPECT(issue.account.size() == 20);
            }
        }
 
        // Valid Issue: MPTID
        {
            Json::Value j;
            Json::Value issueJson(Json::objectValue);
            issueJson["mpt_issuance_id"] = "0000000000000000000000004D5054494431323334234234";
            j[sfAsset] = issueJson;
            STParsedJSONObject obj("Test", j);
            if (BEAST_EXPECT(obj.object); obj.object.has_value())
            {
                BEAST_EXPECT(obj.object->isFieldPresent(sfAsset));
                auto const& issueField = (*obj.object)[sfAsset];
                auto const issue = issueField.value().get<MPTIssue>();
                BEAST_EXPECT(issue.getMptID().size() == 24);
            }
        }
 
        // Invalid Issue: missing currency
        {
            Json::Value j;
            Json::Value issue(Json::objectValue);
            issue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            j[sfAsset] = issue;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid Issue: missing issuer
        {
            Json::Value j;
            Json::Value issue(Json::objectValue);
            issue["currency"] = "USD";
            j[sfAsset] = issue;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid Issue: currency too long
        {
            Json::Value j;
            Json::Value issue(Json::objectValue);
            issue["currency"] = "USDD";
            issue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            j[sfAsset] = issue;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid Issue: issuer not base58 or hex
        {
            Json::Value j;
            Json::Value issue(Json::objectValue);
            issue["currency"] = "USD";
            issue["issuer"] = "notAValidIssuer";
            j[sfAsset] = issue;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid Issue: currency not string
        {
            Json::Value j;
            Json::Value issue(Json::objectValue);
            issue["currency"] = Json::Value(Json::arrayValue);
            issue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            j[sfAsset] = issue;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid Issue: issuer not string
        {
            Json::Value j;
            Json::Value issue(Json::objectValue);
            issue["currency"] = "USD";
            issue["issuer"] = Json::Value(Json::objectValue);
            j[sfAsset] = issue;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid Issue: not an object
        {
            Json::Value j;
            j[sfAsset] = "notanobject";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testXChainBridge()
    {
        testcase("XChainBridge");
        // Valid XChainBridge
        {
            Json::Value j;
            Json::Value bridge(Json::objectValue);
            Json::Value issuingChainIssue(Json::objectValue);
            issuingChainIssue["currency"] = "USD";
            issuingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            Json::Value lockingChainIssue(Json::objectValue);
            lockingChainIssue["currency"] = "EUR";
            lockingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["LockingChainIssue"] = lockingChainIssue;
            bridge["IssuingChainIssue"] = issuingChainIssue;
            bridge["LockingChainDoor"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["IssuingChainDoor"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            j[sfXChainBridge] = bridge;
            STParsedJSONObject obj("Test", j);
            if (BEAST_EXPECT(obj.object); obj.object.has_value())
            {
                BEAST_EXPECT(obj.object->isFieldPresent(sfXChainBridge));
                auto const& bridgeField = (*obj.object)[sfXChainBridge];
                BEAST_EXPECT(bridgeField->lockingChainIssue().currency.size() == 20);
                BEAST_EXPECT(bridgeField->issuingChainIssue().currency.size() == 20);
            }
        }
 
        // Valid XChainBridge: issues as hex currency
        {
            Json::Value j;
            Json::Value bridge(Json::objectValue);
            Json::Value issuingChainIssue(Json::objectValue);
            issuingChainIssue["currency"] = "0123456789ABCDEF01230123456789ABCDEF0123";
            issuingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            Json::Value lockingChainIssue(Json::objectValue);
            lockingChainIssue["currency"] = "0123456789ABCDEF01230123456789ABCDEF0123";
            lockingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["LockingChainIssue"] = lockingChainIssue;
            bridge["IssuingChainIssue"] = issuingChainIssue;
            bridge["LockingChainDoor"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["IssuingChainDoor"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            j[sfXChainBridge] = bridge;
            STParsedJSONObject obj("Test", j);
            if (BEAST_EXPECT(obj.object); obj.object.has_value())
            {
                BEAST_EXPECT(obj.object->isFieldPresent(sfXChainBridge));
                auto const& bridgeField = (*obj.object)[sfXChainBridge];
                BEAST_EXPECT(bridgeField->lockingChainIssue().currency.size() == 20);
                BEAST_EXPECT(bridgeField->issuingChainIssue().currency.size() == 20);
            }
        }
 
        // Invalid XChainBridge: missing LockingChainIssue
        {
            Json::Value j;
            Json::Value bridge(Json::objectValue);
            Json::Value issuingChainIssue(Json::objectValue);
            issuingChainIssue["currency"] = "USD";
            issuingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["IssuingChainIssue"] = issuingChainIssue;
            bridge["LockingChainDoor"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["IssuingChainDoor"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            j[sfXChainBridge] = bridge;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid XChainBridge: missing IssuingChainIssue
        {
            Json::Value j;
            Json::Value bridge(Json::objectValue);
            Json::Value lockingChainIssue(Json::objectValue);
            lockingChainIssue["currency"] = "EUR";
            lockingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["LockingChainIssue"] = lockingChainIssue;
            bridge["LockingChainDoor"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["IssuingChainDoor"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            j[sfXChainBridge] = bridge;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid XChainBridge: missing LockingChainDoor
        {
            Json::Value j;
            Json::Value bridge(Json::objectValue);
            Json::Value issuingChainIssue(Json::objectValue);
            issuingChainIssue["currency"] = "USD";
            issuingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["IssuingChainIssue"] = issuingChainIssue;
            Json::Value lockingChainIssue(Json::objectValue);
            lockingChainIssue["currency"] = "EUR";
            lockingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["LockingChainIssue"] = lockingChainIssue;
            bridge["IssuingChainDoor"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            j[sfXChainBridge] = bridge;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid XChainBridge: missing IssuingChainDoor
        {
            Json::Value j;
            Json::Value bridge(Json::objectValue);
            Json::Value issuingChainIssue(Json::objectValue);
            issuingChainIssue["currency"] = "USD";
            issuingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["IssuingChainIssue"] = issuingChainIssue;
            Json::Value lockingChainIssue(Json::objectValue);
            lockingChainIssue["currency"] = "EUR";
            lockingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["LockingChainIssue"] = lockingChainIssue;
            bridge["LockingChainDoor"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            j[sfXChainBridge] = bridge;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid XChainBridge: IssuingChainIssue not an object
        {
            Json::Value j;
            Json::Value bridge(Json::objectValue);
            bridge["LockingChainIssue"] = "notanobject";
            bridge["IssuingChainIssue"] = "notanobject";
            j[sfXChainBridge] = bridge;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid XChainBridge: IssuingChainIssue missing currency
        {
            Json::Value j;
            Json::Value bridge(Json::objectValue);
            Json::Value asset(Json::objectValue);
            asset["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            Json::Value lockingChainIssue(Json::objectValue);
            lockingChainIssue["currency"] = "EUR";
            lockingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["LockingChainIssue"] = lockingChainIssue;
            bridge["IssuingChainIssue"] = asset;
            j[sfXChainBridge] = bridge;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid XChainBridge: asset missing issuer
        {
            Json::Value j;
            Json::Value bridge(Json::objectValue);
            Json::Value asset(Json::objectValue);
            asset["currency"] = "USD";
            Json::Value lockingChainIssue(Json::objectValue);
            lockingChainIssue["currency"] = "EUR";
            lockingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["LockingChainIssue"] = lockingChainIssue;
            bridge["IssuingChainIssue"] = asset;
            j[sfXChainBridge] = bridge;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid XChainBridge: asset issuer not base58
        {
            Json::Value j;
            Json::Value bridge(Json::objectValue);
            Json::Value asset(Json::objectValue);
            asset["currency"] = "USD";
            asset["issuer"] = "notAValidBase58Account";
            Json::Value lockingChainIssue(Json::objectValue);
            lockingChainIssue["currency"] = "EUR";
            lockingChainIssue["issuer"] = "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh";
            bridge["LockingChainIssue"] = lockingChainIssue;
            bridge["IssuingChainIssue"] = asset;
            j[sfXChainBridge] = bridge;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid XChainBridge: not an object
        {
            Json::Value j;
            j[sfXChainBridge] = "notanobject";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testNumber()
    {
        testcase("Number");
        // Valid integer value for STNumber
        {
            Json::Value j;
            j[sfNumber] = 12345;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfNumber));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldNumber(sfNumber).value() == Number(12345, 0));
        }
 
        // Valid uint value for STNumber
        {
            Json::Value j;
            j[sfNumber] = 12345u;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfNumber));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldNumber(sfNumber).value() == Number(12345, 0));
        }
 
        // Valid string integer value for STNumber
        {
            Json::Value j;
            j[sfNumber] = "67890";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfNumber));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldNumber(sfNumber).value() == Number(67890, 0));
        }
 
        // Valid negative integer value for STNumber
        {
            Json::Value j;
            j[sfNumber] = -42;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfNumber));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldNumber(sfNumber).value() == Number(-42, 0));
        }
 
        // Valid string negative integer value for STNumber
        {
            Json::Value j;
            j[sfNumber] = "-123";
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfNumber));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->getFieldNumber(sfNumber).value() == Number(-123, 0));
        }
 
        // Valid floating point value for STNumber
        {
            Json::Value j;
            j[sfNumber] = "3.14159";
            STParsedJSONObject obj("Test", j);
            if (BEAST_EXPECT(obj.object); obj.object.has_value())
            {
                BEAST_EXPECT(obj.object->isFieldPresent(sfNumber));
                BEAST_EXPECT(obj.object->getFieldNumber(sfNumber).value() == Number(314159, -5));
            }
        }
 
        // Invalid string value for STNumber (not a number)
        {
            Json::Value j;
            j[sfNumber] = "notanumber";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid array value for STNumber
        {
            Json::Value j;
            j[sfNumber] = Json::Value(Json::arrayValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Invalid object value for STNumber
        {
            Json::Value j;
            j[sfNumber] = Json::Value(Json::objectValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Empty string for STNumber (should fail)
        {
            Json::Value j;
            j[sfNumber] = "";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
    }
 
    void
    testObject()
    {
        testcase("Object");
        // Test with valid object for Object
        {
            Json::Value j;
            Json::Value objVal(Json::objectValue);
            objVal[sfTransactionResult] = 1;
            j[sfTransactionMetaData] = objVal;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfTransactionMetaData));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            auto const& result = obj.object->peekFieldObject(sfTransactionMetaData);
            BEAST_EXPECT(result.getFieldU8(sfTransactionResult) == 1);
        }
 
        // Test with non-object value for Object (should fail)
        {
            Json::Value j;
            j[sfTransactionMetaData] = "notanobject";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with array value for Object (should fail)
        {
            Json::Value j;
            Json::Value arr(Json::arrayValue);
            arr.append(1);
            j[sfTransactionMetaData] = arr;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with null value for Object (should fail)
        {
            Json::Value j;
            j[sfTransactionMetaData] = Json::Value(Json::nullValue);
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with max depth (should succeed)
        // max depth is 64
        {
            Json::Value j;
            Json::Value obj(Json::objectValue);
            Json::Value* current = &obj;
            for (int i = 0; i < 63; ++i)
            {
                Json::Value const next(Json::objectValue);
                (*current)[sfTransactionMetaData] = next;
                current = &((*current)[sfTransactionMetaData]);
            }
            (*current)[sfTransactionResult.getJsonName()] = 1;
            j[sfTransactionMetaData] = obj;
            STParsedJSONObject parsed("Test", j);
            BEAST_EXPECT(parsed.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(parsed.object->isFieldPresent(sfTransactionMetaData));
        }
 
        // Test with depth exceeding maxDepth (should fail)
        {
            Json::Value j;
            Json::Value obj(Json::objectValue);
            Json::Value* current = &obj;
            for (int i = 0; i < 64; ++i)
            {
                Json::Value const next(Json::objectValue);
                (*current)[sfTransactionMetaData] = next;
                current = &((*current)[sfTransactionMetaData]);
            }
            (*current)[sfTransactionResult.getJsonName()] = 1;
            j[sfTransactionMetaData] = obj;
            STParsedJSONObject const parsed("Test", j);
            BEAST_EXPECT(!parsed.object.has_value());
        }
    }
 
    void
    testArray()
    {
        testcase("Array");
        // Test with valid array for Array
        {
            Json::Value j;
            Json::Value arr(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem[sfTransactionResult] = 2;
            Json::Value elem2(Json::objectValue);
            elem2[sfTransactionMetaData] = elem;
            arr.append(elem2);
            j[sfSignerEntries] = arr;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfSignerEntries));
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            auto const& result = obj.object->getFieldArray(sfSignerEntries);
            if (BEAST_EXPECT(result.size() == 1))
            {
                BEAST_EXPECT(result[0].getFName() == sfTransactionMetaData);
                BEAST_EXPECT(result[0].getJson(0) == elem);
            }
        }
 
        // Test with array containing non-object element (should fail)
        {
            Json::Value j;
            Json::Value arr(Json::arrayValue);
            arr.append("notanobject");
            j[sfSignerEntries] = arr;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with array containing object with invalid field (should fail)
        {
            Json::Value j;
            Json::Value arr(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem["invalidField"] = 1;
            arr.append(elem);
            j[sfSignerEntries] = arr;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with array containing object with multiple keys (should fail)
        {
            Json::Value j;
            Json::Value arr(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem[sfTransactionResult] = 2;
            elem[sfNetworkID] = 3;
            arr.append(elem);
            j[sfSignerEntries] = arr;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with non-array value for Array (should fail)
        {
            Json::Value j;
            j[sfSignerEntries] = "notanarray";
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with array containing object with valid field but invalid value
        // (should fail)
        {
            Json::Value j;
            Json::Value arr(Json::arrayValue);
            Json::Value elem(Json::objectValue);
            elem[sfTransactionResult] = "notanint";
            arr.append(elem);
            j[sfSignerEntries] = arr;
            STParsedJSONObject const obj("Test", j);
            BEAST_EXPECT(!obj.object.has_value());
        }
 
        // Test with empty array for Array (should be valid)
        {
            Json::Value j;
            Json::Value const arr(Json::arrayValue);
            j[sfSignerEntries] = arr;
            STParsedJSONObject obj("Test", j);
            BEAST_EXPECT(obj.object.has_value());
            // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
            BEAST_EXPECT(obj.object->isFieldPresent(sfSignerEntries));
        }
 
        // Test with object provided but not object SField
        {
            Json::Value j;
            Json::Value obj(Json::arrayValue);
            obj.append(Json::Value(Json::objectValue));
            obj[0u][sfTransactionResult] = 1;
            j[sfSignerEntries] = obj;
            STParsedJSONObject const parsed("Test", j);
            BEAST_EXPECT(!parsed.object.has_value());
        }
 
        // Test invalid children
        {
            try
            {
                /*
 
                STArray/STObject constructs don't really map perfectly to json
                arrays/objects.
 
                STObject is an associative container, mapping fields to value,
                but an STObject may also have a Field as its name, stored
                outside the associative structure. The name is important, so to
                maintain fidelity, it will take TWO json objects to represent
                them.
 
                */
                std::string const faulty(
                    "{\"Template\":[{"
                    "\"ModifiedNode\":{\"Sequence\":1}, "
                    "\"DeletedNode\":{\"Sequence\":1}"
                    "}]}");
 
                std::unique_ptr<STObject> const so;
                Json::Value faultyJson;
                bool const parsedOK(parseJSONString(faulty, faultyJson));
                unexpected(!parsedOK, "failed to parse");
                STParsedJSONObject const parsed("test", faultyJson);
                BEAST_EXPECT(!parsed.object);
            }
            catch (std::runtime_error& e)
            {
                std::string const what(e.what());
                unexpected(what.find("First level children of `Template`") != 0);
            }
        }
    }
 
    void
    testEdgeCases()
    {
        testcase("General Invalid Cases");
 
        {
            Json::Value j;
            j[sfLedgerEntry] = 1;  // not a valid SField for STParsedJSON
        }
 
        {
            std::string const goodJson(
                R"({"CloseResolution":19,"Method":250,)"
                R"("TransactionResult":"tecFROZEN"})");
 
            Json::Value jv;
            if (BEAST_EXPECT(parseJSONString(goodJson, jv)))
            {
                STParsedJSONObject parsed("test", jv);
                if (BEAST_EXPECT(parsed.object))
                {
                    std::string const& serialized(
                        // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
                        to_string(parsed.object->getJson(JsonOptions::none)));
                    BEAST_EXPECT(serialized == goodJson);
                }
            }
        }
 
        {
            std::string const goodJson(
                R"({"CloseResolution":19,"Method":"250",)"
                R"("TransactionResult":"tecFROZEN"})");
            std::string const expectedJson(
                R"({"CloseResolution":19,"Method":250,)"
                R"("TransactionResult":"tecFROZEN"})");
 
            Json::Value jv;
            if (BEAST_EXPECT(parseJSONString(goodJson, jv)))
            {
                // Integer values are always parsed as int,
                // unless they're too big. We want a small uint.
                jv["CloseResolution"] = Json::UInt(19);
                STParsedJSONObject parsed("test", jv);
                if (BEAST_EXPECT(parsed.object))
                {
                    std::string const& serialized(
                        // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
                        to_string(parsed.object->getJson(JsonOptions::none)));
                    BEAST_EXPECT(serialized == expectedJson);
                }
            }
        }
 
        {
            std::string const goodJson(
                R"({"CloseResolution":"19","Method":"250",)"
                R"("TransactionResult":"tecFROZEN"})");
            std::string const expectedJson(
                R"({"CloseResolution":19,"Method":250,)"
                R"("TransactionResult":"tecFROZEN"})");
 
            Json::Value jv;
            if (BEAST_EXPECT(parseJSONString(goodJson, jv)))
            {
                // Integer values are always parsed as int,
                // unless they're too big. We want a small uint.
                jv["CloseResolution"] = Json::UInt(19);
                STParsedJSONObject parsed("test", jv);
                if (BEAST_EXPECT(parsed.object))
                {
                    std::string const& serialized(
                        // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
                        to_string(parsed.object->getJson(JsonOptions::none)));
                    BEAST_EXPECT(serialized == expectedJson);
                }
            }
        }
 
        {
            std::string const json(
                R"({"CloseResolution":19,"Method":250,)"
                R"("TransactionResult":"terQUEUED"})");
 
            Json::Value jv;
            if (BEAST_EXPECT(parseJSONString(json, jv)))
            {
                STParsedJSONObject parsed("test", jv);
                BEAST_EXPECT(!parsed.object);
                BEAST_EXPECT(parsed.error);
                BEAST_EXPECT(parsed.error[jss::error] == "invalidParams");
                BEAST_EXPECT(
                    parsed.error[jss::error_message] ==
                    "Field 'test.TransactionResult' is out of range.");
            }
        }
 
        {
            std::string const json(
                R"({"CloseResolution":19,"Method":"pony",)"
                R"("TransactionResult":"tesSUCCESS"})");
 
            Json::Value jv;
            if (BEAST_EXPECT(parseJSONString(json, jv)))
            {
                STParsedJSONObject parsed("test", jv);
                BEAST_EXPECT(!parsed.object);
                BEAST_EXPECT(parsed.error);
                BEAST_EXPECT(parsed.error[jss::error] == "invalidParams");
                BEAST_EXPECT(
                    parsed.error[jss::error_message] == "Field 'test.Method' has bad type.");
            }
        }
 
        {
            std::string const json(
                R"({"CloseResolution":19,"Method":3294967296,)"
                R"("TransactionResult":"tesSUCCESS"})");
 
            Json::Value jv;
            if (BEAST_EXPECT(parseJSONString(json, jv)))
            {
                STParsedJSONObject parsed("test", jv);
                BEAST_EXPECT(!parsed.object);
                BEAST_EXPECT(parsed.error);
                BEAST_EXPECT(parsed.error[jss::error] == "invalidParams");
                BEAST_EXPECT(
                    parsed.error[jss::error_message] == "Field 'test.Method' is out of range.");
            }
        }
 
        {
            std::string const json(
                R"({"CloseResolution":-10,"Method":42,)"
                R"("TransactionResult":"tesSUCCESS"})");
 
            Json::Value jv;
            if (BEAST_EXPECT(parseJSONString(json, jv)))
            {
                STParsedJSONObject parsed("test", jv);
                BEAST_EXPECT(!parsed.object);
                BEAST_EXPECT(parsed.error);
                BEAST_EXPECT(parsed.error[jss::error] == "invalidParams");
                BEAST_EXPECT(
                    parsed.error[jss::error_message] ==
                    "Field 'test.CloseResolution' is out of range.");
            }
        }
 
        {
            std::string const json(
                R"({"CloseResolution":19,"Method":3.141592653,)"
                R"("TransactionResult":"tesSUCCESS"})");
 
            Json::Value jv;
            if (BEAST_EXPECT(parseJSONString(json, jv)))
            {
                STParsedJSONObject parsed("test", jv);
                BEAST_EXPECT(!parsed.object);
                BEAST_EXPECT(parsed.error);
                BEAST_EXPECT(parsed.error[jss::error] == "invalidParams");
                BEAST_EXPECT(
                    parsed.error[jss::error_message] == "Field 'test.Method' has bad type.");
            }
        }
 
        {
            std::string const goodJson(
                R"({"CloseResolution":19,"Method":250,)"
                R"("TransferFee":"65535"})");
            std::string const expectedJson(
                R"({"CloseResolution":19,"Method":250,)"
                R"("TransferFee":65535})");
 
            Json::Value jv;
            if (BEAST_EXPECT(parseJSONString(goodJson, jv)))
            {
                STParsedJSONObject parsed("test", jv);
                if (BEAST_EXPECT(parsed.object))
                {
                    std::string const& serialized(
                        // NOLINTNEXTLINE(bugprone-unchecked-optional-access)
                        to_string(parsed.object->getJson(JsonOptions::none)));
                    BEAST_EXPECT(serialized == expectedJson);
                }
            }
        }
 
        {
            std::string const json(
                R"({"CloseResolution":19,"Method":250,)"
                R"("TransferFee":"65536"})");
 
            Json::Value jv;
            if (BEAST_EXPECT(parseJSONString(json, jv)))
            {
                STParsedJSONObject parsed("test", jv);
                BEAST_EXPECT(!parsed.object);
                BEAST_EXPECT(parsed.error);
                BEAST_EXPECT(parsed.error[jss::error] == "invalidParams");
                BEAST_EXPECT(
                    parsed.error[jss::error_message] ==
                    "Field 'test.TransferFee' has invalid data.");
            }
        }
 
        {
            std::string const json(
                R"({"CloseResolution":19,"Method":250,)"
                R"("TransferFee":"Payment"})");
 
            Json::Value jv;
            if (BEAST_EXPECT(parseJSONString(json, jv)))
            {
                STParsedJSONObject parsed("test", jv);
                BEAST_EXPECT(!parsed.object);
                BEAST_EXPECT(parsed.error);
                BEAST_EXPECT(parsed.error[jss::error] == "invalidParams");
                BEAST_EXPECT(
                    parsed.error[jss::error_message] ==
                    "Field 'test.TransferFee' has invalid data.");
            }
        }
 
        {
            std::string const json(
                R"({"CloseResolution":19,"Method":250,)"
                R"("TransferFee":true})");
 
            Json::Value jv;
            if (BEAST_EXPECT(parseJSONString(json, jv)))
            {
                STParsedJSONObject parsed("test", jv);
                BEAST_EXPECT(!parsed.object);
                BEAST_EXPECT(parsed.error);
                BEAST_EXPECT(parsed.error[jss::error] == "invalidParams");
                BEAST_EXPECT(
                    parsed.error[jss::error_message] == "Field 'test.TransferFee' has bad type.");
            }
        }
    }
 
    void
    run() override
    {
        // Instantiate a jtx::Env so debugLog writes are exercised.
        test::jtx::Env const env(*this);
        testUInt8();
        testUInt16();
        testUInt32();
        testUInt64();
        testUInt128();
        testUInt160();
        testUInt192();
        testUInt256();
        testInt32();
        testBlob();
        testVector256();
        testAccount();
        testCurrency();
        testAmount();
        testPathSet();
        testIssue();
        testXChainBridge();
        testNumber();
        testObject();
        testArray();
        testEdgeCases();
    }
};
 
BEAST_DEFINE_TESTSUITE(STParsedJSON, protocol, xrpl);
 
}  // namespace xrpl