llvm/llvm/unittests/Support/ProcessTest.cpp

//===- unittest/Support/ProcessTest.cpp -----------------------------------===//
//
// 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 "llvm/Support/Process.h"
#include "llvm/Support/Error.h"
#include "llvm/TargetParser/Host.h"
#include "llvm/TargetParser/Triple.h"
#include "gtest/gtest.h"
#include <optional>

#ifdef _WIN32
#include <windows.h>
#endif

namespace {

usingnamespacellvm;
usingnamespacesys;

TEST(ProcessTest, GetProcessIdTest) { … }

TEST(ProcessTest, GetRandomNumberTest) { … }

#ifdef _MSC_VER
#define setenv …
#endif

#if HAVE_SETENV || _MSC_VER
TEST(ProcessTest, Basic) {
  setenv("__LLVM_TEST_ENVIRON_VAR__", "abc", true);
  std::optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__"));
  EXPECT_TRUE(val.has_value());
  EXPECT_STREQ("abc", val->c_str());
}

TEST(ProcessTest, None) {
  std::optional<std::string> val(
      Process::GetEnv("__LLVM_TEST_ENVIRON_NO_SUCH_VAR__"));
  EXPECT_FALSE(val.has_value());
}
#endif

#ifdef _WIN32

TEST(ProcessTest, EmptyVal) {
  SetEnvironmentVariableA("__LLVM_TEST_ENVIRON_VAR__", "");
  std::optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__"));
  EXPECT_TRUE(val.has_value());
  EXPECT_STREQ("", val->c_str());
}

TEST(ProcessTest, Wchar) {
  SetEnvironmentVariableW(L"__LLVM_TEST_ENVIRON_VAR__", L"abcdefghijklmnopqrs");
  std::optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__"));
  EXPECT_TRUE(val.has_value());
  EXPECT_STREQ("abcdefghijklmnopqrs", val->c_str());
}
#endif

class PageSizeTest : public testing::Test { … };

TEST_F(PageSizeTest, PageSize) { … }

} // end anonymous namespace