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🐛 fix BSON conformance issue

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Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann committed 2026-05-19 14:18:55 +02:00
1 parent d96329f8d6
commit 530ab84ed6
4 files changed
+167 -10
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tests/src/unit-bson.cpp
+39
View File
@@ -1294,3 +1294,42 @@ TEST_CASE("BSON roundtrips" * doctest::skip())
}
}
}
TEST_CASE("Invalid document size handling")
{
SECTION("document size must be at least 5")
{
std::vector<std::uint8_t> const v = {0x04, 0x00, 0x00, 0x00, 0x00};
json _;
CHECK_THROWS_WITH_AS(_ = json::from_bson(v), "[json.exception.parse_error.112] parse error at byte 4: syntax error while parsing BSON document size: BSON document size must be at least 5, is 4", json::parse_error&);
}
SECTION("declared document size must match consumed bytes (extra trailing element)")
{
// Declares 5-byte empty document but appends an int32 element after the declared end.
std::vector<std::uint8_t> const v =
{
0x05, 0x00, 0x00, 0x00,
0x10, 'a', 'd', 'm', 'i', 'n', 0x00,
0x01, 0x00, 0x00, 0x00,
0x00
};
json _;
CHECK_THROWS_WITH_AS(_ = json::from_bson(v), "[json.exception.parse_error.112] parse error at byte 16: syntax error while parsing BSON document: BSON document terminator did not land at declared document size", json::parse_error&);
}
SECTION("BSON string must end with 0x00")
{
// Length-prefixed string whose terminator byte is 'X' (0x58), not 0x00.
std::vector<std::uint8_t> const v =
{
0x0F, 0x00, 0x00, 0x00,
0x02, 's', 0x00,
0x02, 0x00, 0x00, 0x00,
'A', 'X',
0x00
};
json _;
CHECK_THROWS_WITH_AS(_ = json::from_bson(v), "[json.exception.parse_error.112] parse error at byte 13: syntax error while parsing BSON string: BSON string is not null-terminated", json::parse_error&);
}
}
tests/src/unit-serialization.cpp
+10 -8
View File
@@ -311,14 +311,16 @@ TEST_CASE("dump for basic_json with long double number_float_t")
SECTION("round-trip dump/parse")
{
constexpr std::array<long double, 13> values =
{{
0.0L, -0.0L, 1.0L, -1.0L,
0.5L, -0.5L, 1.5L, -2.25L,
1.23e45L, 1.23e-45L,
(std::numeric_limits<long double>::min)(),
std::numeric_limits<long double>::lowest(),
(std::numeric_limits<long double>::max)()
}};
{
{
0.0L, -0.0L, 1.0L, -1.0L,
0.5L, -0.5L, 1.5L, -2.25L,
1.23e45L, 1.23e-45L,
(std::numeric_limits<long double>::min)(),
std::numeric_limits<long double>::lowest(),
(std::numeric_limits<long double>::max)()
}
};
for (long double v : values)
{