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✅ improved test coverage

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This commit is contained in:
Niels Lohmann 2017-09-10 10:21:53 +02:00
parent fcba9ec537
commit da97cf7895
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GPG key ID: 7F3CEA63AE251B69
1 changed files with 83 additions and 0 deletions
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83
test/src/unit-cbor.cpp
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@ -735,6 +735,89 @@ TEST_CASE("CBOR")
SECTION("half-precision float (edge cases)")
{
SECTION("errors")
{
SECTION("no byte follows")
{
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0xf9})), json::parse_error);
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0xf9})),
"[json.exception.parse_error.110] parse error at 2: unexpected end of input");
}
SECTION("only one byte follows")
{
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0xf9, 0x7c})), json::parse_error);
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0xf9, 0x7c})),
"[json.exception.parse_error.110] parse error at 3: unexpected end of input");
}
}
SECTION("exp = 0b00000")
{
SECTION("0 (0 00000 0000000000)")
{
json j = json::from_cbor(std::vector<uint8_t>({0xf9, 0x00, 0x00}));
json::number_float_t d = j;
CHECK(d == 0.0);
}
SECTION("-0 (1 00000 0000000000)")
{
json j = json::from_cbor(std::vector<uint8_t>({0xf9, 0x80, 0x00}));
json::number_float_t d = j;
CHECK(d == -0.0);
}
SECTION("2**-24 (0 00000 0000000001)")
{
json j = json::from_cbor(std::vector<uint8_t>({0xf9, 0x00, 0x01}));
json::number_float_t d = j;
CHECK(d == std::pow(2.0, -24.0));
}
}
SECTION("exp = 0b11111")
{
SECTION("infinity (0 11111 0000000000)")
{
json j = json::from_cbor(std::vector<uint8_t>({0xf9, 0x7c, 0x00}));
json::number_float_t d = j;
CHECK(d == std::numeric_limits<json::number_float_t>::infinity());
CHECK(j.dump() == "null");
}
SECTION("-infinity (1 11111 0000000000)")
{
json j = json::from_cbor(std::vector<uint8_t>({0xf9, 0xfc, 0x00}));
json::number_float_t d = j;
CHECK(d == -std::numeric_limits<json::number_float_t>::infinity());
CHECK(j.dump() == "null");
}
}
SECTION("other values from https://en.wikipedia.org/wiki/Half-precision_floating-point_format")
{
SECTION("1 (0 01111 0000000000)")
{
json j = json::from_cbor(std::vector<uint8_t>({0xf9, 0x3c, 0x00}));
json::number_float_t d = j;
CHECK(d == 1);
}
SECTION("-2 (1 10000 0000000000)")
{
json j = json::from_cbor(std::vector<uint8_t>({0xf9, 0xc0, 0x00}));
json::number_float_t d = j;
CHECK(d == -2);
}
SECTION("65504 (0 11110 1111111111)")
{
json j = json::from_cbor(std::vector<uint8_t>({0xf9, 0x7b, 0xff}));
json::number_float_t d = j;
CHECK(d == 65504);
}
}
SECTION("infinity")
{
json j = json::from_cbor(std::vector<uint8_t>({0xf9, 0x7c, 0x00}));