mirror of
https://github.com/LadybirdBrowser/ladybird.git
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5e1499d104
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).
This commit is auto-generated:
$ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
Meta Ports Ladybird Tests Kernel)
$ perl -pie 's/\bDeprecatedString\b/ByteString/g;
s/deprecated_string/byte_string/g' $xs
$ clang-format --style=file -i \
$(git diff --name-only | grep \.cpp\|\.h)
$ gn format $(git ls-files '*.gn' '*.gni')
183 lines
8.7 KiB
C++
183 lines
8.7 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/ByteString.h>
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#include <AK/Function.h>
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#include <AK/NonnullRefPtr.h>
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#include <AK/RefCounted.h>
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#include <LibTest/Macros.h>
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#include <LibTest/Randomized/RandomnessSource.h>
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#include <LibTest/Randomized/Shrink.h>
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namespace Test {
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using TestFunction = Function<void()>;
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inline void run_with_randomness_source(Randomized::RandomnessSource source, TestFunction const& test_function)
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{
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set_randomness_source(move(source));
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set_current_test_result(TestResult::NotRun);
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test_function();
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if (current_test_result() == TestResult::NotRun) {
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set_current_test_result(TestResult::Passed);
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}
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}
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class TestCase : public RefCounted<TestCase> {
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public:
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TestCase(ByteString const& name, TestFunction&& fn, bool is_benchmark)
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: m_name(name)
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, m_function(move(fn))
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, m_is_benchmark(is_benchmark)
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{
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}
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bool is_benchmark() const { return m_is_benchmark; }
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ByteString const& name() const { return m_name; }
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TestFunction const& func() const { return m_function; }
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static NonnullRefPtr<TestCase> randomized(ByteString const& name, TestFunction&& test_function)
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{
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using namespace Randomized;
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constexpr u8 MAX_GEN_ATTEMPTS_PER_VALUE = 30;
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TestFunction test_case_function = [test_function = move(test_function)]() {
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u64 max_randomized_runs = randomized_runs();
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for (u64 i = 0; i < max_randomized_runs; ++i) {
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bool generated_successfully = false;
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u8 gen_attempt;
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for (gen_attempt = 0; gen_attempt < MAX_GEN_ATTEMPTS_PER_VALUE && !generated_successfully; ++gen_attempt) {
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// We're going to run the test function many times, so let's turn off the reporting until we finish.
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disable_reporting();
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set_current_test_result(TestResult::NotRun);
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run_with_randomness_source(RandomnessSource::live(), test_function);
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switch (current_test_result()) {
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case TestResult::NotRun:
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VERIFY_NOT_REACHED();
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break;
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case TestResult::Passed: {
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generated_successfully = true;
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break;
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}
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case TestResult::Failed: {
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generated_successfully = true;
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RandomRun first_failure = randomness_source().run();
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RandomRun best_failure = shrink(first_failure, test_function);
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// Run one last time with reporting on, so that the user can see the minimal failure
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enable_reporting();
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run_with_randomness_source(RandomnessSource::recorded(best_failure), test_function);
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return;
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}
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case TestResult::Rejected:
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break;
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case TestResult::Overrun:
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break;
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default:
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VERIFY_NOT_REACHED();
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break;
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}
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}
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enable_reporting();
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if (!generated_successfully) {
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// The loop above got to the full MAX_GEN_ATTEMPTS_PER_VALUE and gave up.
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// Run one last time with reporting on, so that the user gets the REJECTED message.
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RandomRun last_failure = randomness_source().run();
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run_with_randomness_source(RandomnessSource::recorded(last_failure), test_function);
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return;
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}
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}
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// All randomized_runs() values generated + passed the test.
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};
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return make_ref_counted<TestCase>(name, move(test_case_function), false);
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}
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private:
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ByteString m_name;
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TestFunction m_function;
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bool m_is_benchmark;
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};
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// Helper to hide implementation of TestSuite from users
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void add_test_case_to_suite(NonnullRefPtr<TestCase> const& test_case);
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void set_suite_setup_function(Function<void()> setup);
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}
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#define TEST_SETUP \
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static void __setup(); \
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struct __setup_type { \
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__setup_type() \
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{ \
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Test::set_suite_setup_function(__setup); \
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} \
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}; \
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static struct __setup_type __setup_type; \
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static void __setup()
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// Unit test
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#define __TESTCASE_FUNC(x) __test_##x
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#define __TESTCASE_TYPE(x) __TestCase_##x
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#define TEST_CASE(x) \
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static void __TESTCASE_FUNC(x)(); \
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struct __TESTCASE_TYPE(x) { \
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__TESTCASE_TYPE(x) \
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() \
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{ \
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add_test_case_to_suite(adopt_ref(*new ::Test::TestCase(#x, __TESTCASE_FUNC(x), false))); \
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} \
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}; \
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static struct __TESTCASE_TYPE(x) __TESTCASE_TYPE(x); \
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static void __TESTCASE_FUNC(x)()
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// Benchmark
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#define __BENCHMARK_FUNC(x) __benchmark_##x
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#define __BENCHMARK_TYPE(x) __BenchmarkCase_##x
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#define BENCHMARK_CASE(x) \
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static void __BENCHMARK_FUNC(x)(); \
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struct __BENCHMARK_TYPE(x) { \
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__BENCHMARK_TYPE(x) \
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() \
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{ \
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add_test_case_to_suite(adopt_ref(*new ::Test::TestCase(#x, __BENCHMARK_FUNC(x), true))); \
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} \
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}; \
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static struct __BENCHMARK_TYPE(x) __BENCHMARK_TYPE(x); \
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static void __BENCHMARK_FUNC(x)()
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// Randomized test
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#define __RANDOMIZED_TEST_FUNC(x) __randomized_test_##x
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#define __RANDOMIZED_TEST_TYPE(x) __RandomizedTestCase_##x
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#define RANDOMIZED_TEST_CASE(x) \
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static void __RANDOMIZED_TEST_FUNC(x)(); \
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struct __RANDOMIZED_TEST_TYPE(x) { \
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__RANDOMIZED_TEST_TYPE(x) \
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() \
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{ \
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add_test_case_to_suite(::Test::TestCase::randomized(#x, __RANDOMIZED_TEST_FUNC(x))); \
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} \
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}; \
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static struct __RANDOMIZED_TEST_TYPE(x) __RANDOMIZED_TEST_TYPE(x); \
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static void __RANDOMIZED_TEST_FUNC(x)()
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// This allows us to print the generated locals in the test after a failure is fully shrunk.
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#define GEN(identifier, value) \
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auto identifier = (value); \
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if (::Test::current_test_result() == ::Test::TestResult::Overrun) \
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return; \
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if (::Test::is_reporting_enabled()) \
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::AK::warnln("{} = {}", #identifier, (identifier))
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