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//===- unittest/Support/ProcessTest.cpp -----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Process.h"
#include "gtest/gtest.h"
#ifdef LLVM_ON_WIN32
#include <windows.h>
#endif
namespace {
using namespace llvm;
using namespace sys;
TEST(ProcessTest, SelfProcess) {
EXPECT_TRUE(process::get_self());
EXPECT_EQ(process::get_self(), process::get_self());
#if defined(LLVM_ON_UNIX)
EXPECT_EQ(getpid(), process::get_self()->get_id());
#elif defined(LLVM_ON_WIN32)
EXPECT_EQ(GetCurrentProcessId(), process::get_self()->get_id());
#endif
EXPECT_LT(1u, process::get_self()->page_size());
EXPECT_LT(TimeValue::MinTime(), process::get_self()->get_user_time());
EXPECT_GT(TimeValue::MaxTime(), process::get_self()->get_user_time());
EXPECT_LT(TimeValue::MinTime(), process::get_self()->get_system_time());
EXPECT_GT(TimeValue::MaxTime(), process::get_self()->get_system_time());
EXPECT_LT(TimeValue::MinTime(), process::get_self()->get_wall_time());
EXPECT_GT(TimeValue::MaxTime(), process::get_self()->get_wall_time());
}
TEST(ProcessTest, GetRandomNumberTest) {
const unsigned r1 = Process::GetRandomNumber();
const unsigned r2 = Process::GetRandomNumber();
// It should be extremely unlikely that both r1 and r2 are 0.
EXPECT_NE((r1 | r2), 0u);
}
#ifdef _MSC_VER
#define setenv(name, var, ignore) _putenv_s(name, var)
#endif
#if HAVE_SETENV || _MSC_VER
TEST(ProcessTest, Basic) {
setenv("__LLVM_TEST_ENVIRON_VAR__", "abc", true);
Optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__"));
EXPECT_TRUE(val.hasValue());
EXPECT_STREQ("abc", val->c_str());
}
TEST(ProcessTest, None) {
Optional<std::string> val(
Process::GetEnv("__LLVM_TEST_ENVIRON_NO_SUCH_VAR__"));
EXPECT_FALSE(val.hasValue());
}
#endif
#ifdef LLVM_ON_WIN32
TEST(ProcessTest, Wchar) {
SetEnvironmentVariableW(L"__LLVM_TEST_ENVIRON_VAR__", L"abcdefghijklmnopqrs");
Optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__"));
EXPECT_TRUE(val.hasValue());
EXPECT_STREQ("abcdefghijklmnopqrs", val->c_str());
}
#endif
} // end anonymous namespace
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