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4fc1daa69f
MAX_GENERATED_VALUES_PER_TEST is now the --randomized_runs flag: $ ./Build/lagom/bin/TestGenerator --randomized_runs 1000 It's sometimes useful to try larger numbers for it instead of the default of 100. MAX_GEN_ATTEMPTS_PER_VALUE is now a constexpr. It's not usually needed to tweak this value; we can recompile with a different value on the rare occasion.
178 lines
13 KiB
C++
178 lines
13 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Andrew Kaster <akaster@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Assertions.h>
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#include <AK/CheckedFormatString.h>
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#include <AK/Math.h>
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#include <LibTest/CrashTest.h>
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#include <LibTest/Randomized/RandomnessSource.h>
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#include <LibTest/TestResult.h>
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namespace AK {
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template<typename... Parameters>
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void warnln(CheckedFormatString<Parameters...>&& fmtstr, Parameters const&...);
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}
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namespace Test {
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// Declare helpers so that we can call them from VERIFY in included headers
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// the setter for TestResult is already declared in TestResult.h
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TestResult current_test_result();
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Randomized::RandomnessSource& randomness_source();
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void set_randomness_source(Randomized::RandomnessSource);
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bool is_reporting_enabled();
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void enable_reporting();
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void disable_reporting();
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u64 randomized_runs();
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}
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#define EXPECT_EQ(a, b) \
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do { \
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auto lhs = (a); \
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auto rhs = (b); \
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if (lhs != rhs) { \
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if (::Test::is_reporting_enabled()) \
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::AK::warnln("\033[31;1mFAIL\033[0m: {}:{}: EXPECT_EQ({}, {}) failed with lhs={} and rhs={}", \
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__FILE__, __LINE__, #a, #b, FormatIfSupported { lhs }, FormatIfSupported { rhs }); \
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::Test::set_current_test_result(::Test::TestResult::Failed); \
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} \
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} while (false)
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#define EXPECT_EQ_TRUTH(a, b) \
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do { \
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auto lhs = (a); \
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auto rhs = (b); \
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bool ltruth = static_cast<bool>(lhs); \
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bool rtruth = static_cast<bool>(rhs); \
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if (ltruth != rtruth) { \
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if (::Test::is_reporting_enabled()) \
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::AK::warnln("\033[31;1mFAIL\033[0m: {}:{}: EXPECT_EQ_TRUTH({}, {}) failed with lhs={} ({}) and rhs={} ({})", \
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__FILE__, __LINE__, #a, #b, FormatIfSupported { lhs }, ltruth, FormatIfSupported { rhs }, rtruth); \
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::Test::set_current_test_result(::Test::TestResult::Failed); \
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} \
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} while (false)
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// If you're stuck and `EXPECT_EQ` seems to refuse to print anything useful,
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// try this: It'll spit out a nice compiler error telling you why it doesn't print.
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#define EXPECT_EQ_FORCE(a, b) \
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do { \
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auto lhs = (a); \
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auto rhs = (b); \
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if (lhs != rhs) { \
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if (::Test::is_reporting_enabled()) \
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::AK::warnln("\033[31;1mFAIL\033[0m: {}:{}: EXPECT_EQ({}, {}) failed with lhs={} and rhs={}", \
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__FILE__, __LINE__, #a, #b, lhs, rhs); \
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::Test::set_current_test_result(::Test::TestResult::Failed); \
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} \
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} while (false)
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#define EXPECT_NE(a, b) \
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do { \
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auto lhs = (a); \
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auto rhs = (b); \
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if (lhs == rhs) { \
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if (::Test::is_reporting_enabled()) \
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::AK::warnln("\033[31;1mFAIL\033[0m: {}:{}: EXPECT_NE({}, {}) failed with lhs={} and rhs={}", \
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__FILE__, __LINE__, #a, #b, FormatIfSupported { lhs }, FormatIfSupported { rhs }); \
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::Test::set_current_test_result(::Test::TestResult::Failed); \
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} \
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} while (false)
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#define EXPECT(x) \
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do { \
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if (!(x)) { \
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if (::Test::is_reporting_enabled()) \
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::AK::warnln("\033[31;1mFAIL\033[0m: {}:{}: EXPECT({}) failed", __FILE__, __LINE__, #x); \
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::Test::set_current_test_result(::Test::TestResult::Failed); \
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} \
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} while (false)
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#define EXPECT_APPROXIMATE_WITH_ERROR(a, b, err) \
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do { \
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auto expect_close_lhs = a; \
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auto expect_close_rhs = b; \
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auto expect_close_diff = static_cast<double>(expect_close_lhs) - static_cast<double>(expect_close_rhs); \
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if (AK::fabs(expect_close_diff) > (err)) { \
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if (::Test::is_reporting_enabled()) \
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::AK::warnln("\033[31;1mFAIL\033[0m: {}:{}: EXPECT_APPROXIMATE({}, {})" \
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" failed with lhs={}, rhs={}, (lhs-rhs)={}", \
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__FILE__, __LINE__, #a, #b, expect_close_lhs, expect_close_rhs, expect_close_diff); \
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::Test::set_current_test_result(::Test::TestResult::Failed); \
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} \
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} while (false)
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#define EXPECT_APPROXIMATE(a, b) EXPECT_APPROXIMATE_WITH_ERROR(a, b, 0.0000005)
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#define REJECT(message) \
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do { \
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if (::Test::is_reporting_enabled()) \
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::AK::warnln("\033[31;1mREJECTED\033[0m: {}:{}: {}", \
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__FILE__, __LINE__, #message); \
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::Test::set_current_test_result(::Test::TestResult::Rejected); \
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} while (false)
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#define ASSUME(x) \
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do { \
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if (!(x)) { \
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if (::Test::is_reporting_enabled()) \
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::AK::warnln("\033[31;1mREJECTED\033[0m: {}:{}: Couldn't generate random value satisfying ASSUME({})", \
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__FILE__, __LINE__, #x); \
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::Test::set_current_test_result(::Test::TestResult::Rejected); \
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return; \
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} \
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} while (false)
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#define FAIL(message) \
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do { \
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if (::Test::is_reporting_enabled()) \
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::AK::warnln("\033[31;1mFAIL\033[0m: {}:{}: {}", __FILE__, __LINE__, message); \
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::Test::set_current_test_result(::Test::TestResult::Failed); \
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} while (false)
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// To use, specify the lambda to execute in a sub process and verify it exits:
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// EXPECT_CRASH("This should fail", []{
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// return Test::Crash::Failure::DidNotCrash;
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// });
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#define EXPECT_CRASH(test_message, test_func) \
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do { \
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Test::Crash crash(test_message, test_func); \
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if (!crash.run()) \
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::Test::set_current_test_result(::Test::TestResult::Failed); \
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} while (false)
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#define EXPECT_CRASH_WITH_SIGNAL(test_message, signal, test_func) \
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do { \
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Test::Crash crash(test_message, test_func, (signal)); \
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if (!crash.run()) \
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::Test::set_current_test_result(::Test::TestResult::Failed); \
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} while (false)
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#define EXPECT_NO_CRASH(test_message, test_func) \
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do { \
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Test::Crash crash(test_message, test_func, 0); \
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if (!crash.run()) \
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::Test::set_current_test_result(::Test::TestResult::Failed); \
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} while (false)
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#define TRY_OR_FAIL(expression) \
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({ \
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/* Ignore -Wshadow to allow nesting the macro. */ \
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AK_IGNORE_DIAGNOSTIC("-Wshadow", \
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auto&& _temporary_result = (expression)); \
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static_assert(!::AK::Detail::IsLvalueReference<decltype(_temporary_result.release_value())>, \
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"Do not return a reference from a fallible expression"); \
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if (_temporary_result.is_error()) [[unlikely]] { \
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FAIL(_temporary_result.release_error()); \
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return; \
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} \
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_temporary_result.release_value(); \
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})
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