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//===-- Implementation of the base class for libc unittests----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "LibcTest.h"
#include "src/__support/CPP/string.h"
#include "src/__support/CPP/string_view.h"
#include "src/__support/UInt128.h"
#include "test/UnitTest/TestLogger.h"
#if __STDC_HOSTED__
#include <time.h>
#elif defined(LIBC_TARGET_ARCH_IS_GPU)
#include "src/__support/GPU/utils.h"
static long clock() { return __llvm_libc::gpu::fixed_frequency_clock(); }
#if defined(LIBC_TARGET_ARCH_IS_NVPTX)
#define CLOCKS_PER_SEC 1000000000UL
#else
// The AMDGPU loader needs to initialize this at runtime by querying the driver.
extern "C" [[gnu::visibility("protected")]] uint64_t
[[clang::address_space(4)]] __llvm_libc_clock_freq;
#define CLOCKS_PER_SEC __llvm_libc_clock_freq
#endif
#else
static long clock() { return 0; }
#define CLOCKS_PER_SEC 1
#endif
namespace __llvm_libc {
namespace testing {
namespace internal {
TestLogger &operator<<(TestLogger &logger, Location Loc) {
return logger << Loc.file << ":" << Loc.line << ": FAILURE\n";
}
// When the value is UInt128, __uint128_t or wider, show its hexadecimal
// digits.
template <typename T>
cpp::enable_if_t<cpp::is_integral_v<T> && (sizeof(T) > sizeof(uint64_t)),
cpp::string>
describeValue(T Value) {
static_assert(sizeof(T) % 8 == 0, "Unsupported size of UInt");
char buf[IntegerToString::hex_bufsize<T>()];
IntegerToString::hex(Value, buf, false);
return "0x" + cpp::string(buf, sizeof(buf));
}
// When the value is of a standard integral type, just display it as normal.
template <typename ValType>
cpp::enable_if_t<cpp::is_integral_v<ValType> &&
sizeof(ValType) <= sizeof(uint64_t),
cpp::string>
describeValue(ValType Value) {
return cpp::to_string(Value);
}
cpp::string_view describeValue(const cpp::string &Value) { return Value; }
cpp::string_view describeValue(cpp::string_view Value) { return Value; }
template <typename ValType>
bool test(RunContext *Ctx, TestCond Cond, ValType LHS, ValType RHS,
const char *LHSStr, const char *RHSStr, Location Loc) {
auto ExplainDifference = [=, &Ctx](bool Cond,
cpp::string_view OpString) -> bool {
if (Cond)
return true;
Ctx->markFail();
size_t OffsetLength = OpString.size() > 2 ? OpString.size() - 2 : 0;
cpp::string Offset(OffsetLength, ' ');
tlog << Loc;
tlog << Offset << "Expected: " << LHSStr << '\n'
<< Offset << "Which is: " << describeValue(LHS) << '\n'
<< "To be " << OpString << ": " << RHSStr << '\n'
<< Offset << "Which is: " << describeValue(RHS) << '\n';
return false;
};
switch (Cond) {
case TestCond::EQ:
return ExplainDifference(LHS == RHS, "equal to");
case TestCond::NE:
return ExplainDifference(LHS != RHS, "not equal to");
case TestCond::LT:
return ExplainDifference(LHS < RHS, "less than");
case TestCond::LE:
return ExplainDifference(LHS <= RHS, "less than or equal to");
case TestCond::GT:
return ExplainDifference(LHS > RHS, "greater than");
case TestCond::GE:
return ExplainDifference(LHS >= RHS, "greater than or equal to");
}
}
} // namespace internal
Test *Test::Start = nullptr;
Test *Test::End = nullptr;
int argc = 0;
char **argv = nullptr;
char **envp = nullptr;
using internal::RunContext;
void Test::addTest(Test *T) {
if (End == nullptr) {
Start = T;
End = T;
return;
}
End->Next = T;
End = T;
}
int Test::runTests(const char *TestFilter) {
int TestCount = 0;
int FailCount = 0;
for (Test *T = Start; T != nullptr; T = T->Next) {
const char *TestName = T->getName();
cpp::string StrTestName(TestName);
constexpr auto GREEN = "\033[32m";
constexpr auto RED = "\033[31m";
constexpr auto RESET = "\033[0m";
if ((TestFilter != nullptr) && (StrTestName != TestFilter)) {
continue;
}
tlog << GREEN << "[ RUN ] " << RESET << TestName << '\n';
[[maybe_unused]] const auto start_time = clock();
RunContext Ctx;
T->SetUp();
T->setContext(&Ctx);
T->Run();
T->TearDown();
[[maybe_unused]] const auto end_time = clock();
switch (Ctx.status()) {
case RunContext::RunResult::Fail:
tlog << RED << "[ FAILED ] " << RESET << TestName << '\n';
++FailCount;
break;
case RunContext::RunResult::Pass:
tlog << GREEN << "[ OK ] " << RESET << TestName;
#if __STDC_HOSTED__ || defined(LIBC_TARGET_ARCH_IS_GPU)
tlog << " (took ";
if (start_time > end_time) {
tlog << "unknown - try rerunning)\n";
} else {
const auto duration = end_time - start_time;
const uint64_t duration_ms = (duration * 1000) / CLOCKS_PER_SEC;
const uint64_t duration_us = (duration * 1000 * 1000) / CLOCKS_PER_SEC;
const uint64_t duration_ns =
(duration * 1000 * 1000 * 1000) / CLOCKS_PER_SEC;
if (duration_ms != 0)
tlog << duration_ms << " ms)\n";
else if (duration_us != 0)
tlog << duration_us << " us)\n";
else
tlog << duration_ns << " ns)\n";
}
#else
tlog << '\n';
#endif
break;
}
++TestCount;
}
if (TestCount > 0) {
tlog << "Ran " << TestCount << " tests. "
<< " PASS: " << TestCount - FailCount << ' ' << " FAIL: " << FailCount
<< '\n';
} else {
tlog << "No tests run.\n";
if (TestFilter) {
tlog << "No matching test for " << TestFilter << '\n';
}
}
return FailCount > 0 || TestCount == 0 ? 1 : 0;
}
namespace internal {
template bool test<char>(RunContext *Ctx, TestCond Cond, char LHS, char RHS,
const char *LHSStr, const char *RHSStr, Location Loc);
template bool test<short>(RunContext *Ctx, TestCond Cond, short LHS, short RHS,
const char *LHSStr, const char *RHSStr, Location Loc);
template bool test<int>(RunContext *Ctx, TestCond Cond, int LHS, int RHS,
const char *LHSStr, const char *RHSStr, Location Loc);
template bool test<long>(RunContext *Ctx, TestCond Cond, long LHS, long RHS,
const char *LHSStr, const char *RHSStr, Location Loc);
template bool test<long long>(RunContext *Ctx, TestCond Cond, long long LHS,
long long RHS, const char *LHSStr,
const char *RHSStr, Location Loc);
template bool test<unsigned char>(RunContext *Ctx, TestCond Cond,
unsigned char LHS, unsigned char RHS,
const char *LHSStr, const char *RHSStr,
Location Loc);
template bool test<unsigned short>(RunContext *Ctx, TestCond Cond,
unsigned short LHS, unsigned short RHS,
const char *LHSStr, const char *RHSStr,
Location Loc);
template bool test<unsigned int>(RunContext *Ctx, TestCond Cond,
unsigned int LHS, unsigned int RHS,
const char *LHSStr, const char *RHSStr,
Location Loc);
template bool test<unsigned long>(RunContext *Ctx, TestCond Cond,
unsigned long LHS, unsigned long RHS,
const char *LHSStr, const char *RHSStr,
Location Loc);
template bool test<bool>(RunContext *Ctx, TestCond Cond, bool LHS, bool RHS,
const char *LHSStr, const char *RHSStr, Location Loc);
template bool test<unsigned long long>(RunContext *Ctx, TestCond Cond,
unsigned long long LHS,
unsigned long long RHS,
const char *LHSStr, const char *RHSStr,
Location Loc);
// We cannot just use a single UInt128 specialization as that resolves to only
// one type, UInt<128> or __uint128_t. We want both overloads as we want to
// be able to unittest UInt<128> on platforms where UInt128 resolves to
// UInt128.
#ifdef __SIZEOF_INT128__
// When builtin __uint128_t type is available, include its specialization
// also.
template bool test<__uint128_t>(RunContext *Ctx, TestCond Cond, __uint128_t LHS,
__uint128_t RHS, const char *LHSStr,
const char *RHSStr, Location Loc);
#endif
template bool test<__llvm_libc::cpp::Int<128>>(RunContext *Ctx, TestCond Cond,
__llvm_libc::cpp::Int<128> LHS,
__llvm_libc::cpp::Int<128> RHS,
const char *LHSStr,
const char *RHSStr,
Location Loc);
template bool test<__llvm_libc::cpp::UInt<128>>(RunContext *Ctx, TestCond Cond,
__llvm_libc::cpp::UInt<128> LHS,
__llvm_libc::cpp::UInt<128> RHS,
const char *LHSStr,
const char *RHSStr,
Location Loc);
template bool test<__llvm_libc::cpp::UInt<192>>(RunContext *Ctx, TestCond Cond,
__llvm_libc::cpp::UInt<192> LHS,
__llvm_libc::cpp::UInt<192> RHS,
const char *LHSStr,
const char *RHSStr,
Location Loc);
template bool test<__llvm_libc::cpp::UInt<256>>(RunContext *Ctx, TestCond Cond,
__llvm_libc::cpp::UInt<256> LHS,
__llvm_libc::cpp::UInt<256> RHS,
const char *LHSStr,
const char *RHSStr,
Location Loc);
template bool test<__llvm_libc::cpp::UInt<320>>(RunContext *Ctx, TestCond Cond,
__llvm_libc::cpp::UInt<320> LHS,
__llvm_libc::cpp::UInt<320> RHS,
const char *LHSStr,
const char *RHSStr,
Location Loc);
template bool test<__llvm_libc::cpp::string_view>(
RunContext *Ctx, TestCond Cond, __llvm_libc::cpp::string_view LHS,
__llvm_libc::cpp::string_view RHS, const char *LHSStr, const char *RHSStr,
Location Loc);
template bool test<__llvm_libc::cpp::string>(RunContext *Ctx, TestCond Cond,
__llvm_libc::cpp::string LHS,
__llvm_libc::cpp::string RHS,
const char *LHSStr,
const char *RHSStr, Location Loc);
} // namespace internal
bool Test::testStrEq(const char *LHS, const char *RHS, const char *LHSStr,
const char *RHSStr, internal::Location Loc) {
return internal::test(
Ctx, TestCond::EQ, LHS ? cpp::string_view(LHS) : cpp::string_view(),
RHS ? cpp::string_view(RHS) : cpp::string_view(), LHSStr, RHSStr, Loc);
}
bool Test::testStrNe(const char *LHS, const char *RHS, const char *LHSStr,
const char *RHSStr, internal::Location Loc) {
return internal::test(
Ctx, TestCond::NE, LHS ? cpp::string_view(LHS) : cpp::string_view(),
RHS ? cpp::string_view(RHS) : cpp::string_view(), LHSStr, RHSStr, Loc);
}
bool Test::testMatch(bool MatchResult, MatcherBase &Matcher, const char *LHSStr,
const char *RHSStr, internal::Location Loc) {
if (MatchResult)
return true;
Ctx->markFail();
if (!Matcher.is_silent()) {
tlog << Loc;
tlog << "Failed to match " << LHSStr << " against " << RHSStr << ".\n";
Matcher.explainError();
}
return false;
}
} // namespace testing
} // namespace __llvm_libc
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