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Diffstat (limited to 'tests/test_variant.h')
| -rw-r--r-- | tests/test_variant.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/tests/test_variant.h b/tests/test_variant.h new file mode 100644 index 0000000000..a384a3e91f --- /dev/null +++ b/tests/test_variant.h @@ -0,0 +1,111 @@ +/*************************************************************************/ +/* test_variant.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#ifndef TEST_VARIANT_H +#define TEST_VARIANT_H + +#include "core/variant.h" +#include "core/variant_parser.h" + +#include "tests/test_macros.h" + +namespace TestVariant { + +TEST_CASE("[Variant] Writer and parser integer") { + int64_t a32 = 2147483648; // 2^31, so out of bounds for 32-bit signed int [-2^31,-2^31-1]. + String a32_str; + VariantWriter::write_to_string(a32, a32_str); + + CHECK_MESSAGE(a32_str != "-2147483648", "Should not wrap around"); + + int64_t b64 = 9223372036854775807; // 2^63-1, upper bound for signed 64-bit int. + String b64_str; + VariantWriter::write_to_string(b64, b64_str); + + CHECK_MESSAGE(b64_str == "9223372036854775807", "Should not wrap around."); + + VariantParser::StreamString ss; + String errs; + int line; + Variant b64_parsed; + int64_t b64_int_parsed; + + ss.s = b64_str; + VariantParser::parse(&ss, b64_parsed, errs, line); + b64_int_parsed = b64_parsed; + + CHECK_MESSAGE(b64_int_parsed == 9223372036854775807, "Should parse back."); + + ss.s = "9223372036854775808"; // Overflowed by one. + VariantParser::parse(&ss, b64_parsed, errs, line); + b64_int_parsed = b64_parsed; + + CHECK_MESSAGE(b64_int_parsed == 9223372036854775807, "The result should be clamped to max value."); + + ss.s = "1e100"; // Googol! Scientific notation. + VariantParser::parse(&ss, b64_parsed, errs, line); + b64_int_parsed = b64_parsed; + + CHECK_MESSAGE(b64_int_parsed == 9223372036854775807, "The result should be clamped to max value."); +} + +TEST_CASE("[Variant] Writer and parser float") { + // Assuming real_t is double. + real_t a64 = 340282346638528859811704183484516925440.0; // std::numeric_limits<real_t>::max() + String a64_str; + VariantWriter::write_to_string(a64, a64_str); + + CHECK_MESSAGE(a64_str == "3.40282e+38", "Writes in scientific notation."); + CHECK_MESSAGE(a64_str != "inf", "Should not overflow."); + CHECK_MESSAGE(a64_str != "nan", "The result should be defined."); + + VariantParser::StreamString ss; + String errs; + int line; + Variant b64_parsed; + real_t b64_float_parsed; + + ss.s = a64_str; + VariantParser::parse(&ss, b64_parsed, errs, line); + b64_float_parsed = b64_parsed; + + CHECK_MESSAGE(b64_float_parsed == 340282001837565597733306976381245063168.0, "Should parse back."); + // Loses precision, but that's alright. + + ss.s = "1.0e+100"; // Float version of Googol! + VariantParser::parse(&ss, b64_parsed, errs, line); + b64_float_parsed = b64_parsed; + + CHECK_MESSAGE(b64_float_parsed == 340282001837565597733306976381245063168.0, "Should not overflow."); +} + +} // namespace TestVariant + +#endif // TEST_VARIANT_H |