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//===- 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 "gtest/gtest.h"
#ifdef _WIN32
#include <windows.h>
#endif
namespace {
using namespace llvm;
using namespace sys;
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 _WIN32
TEST(ProcessTest, EmptyVal) {
SetEnvironmentVariableA("__LLVM_TEST_ENVIRON_VAR__", "");
Optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__"));
EXPECT_TRUE(val.hasValue());
EXPECT_STREQ("", val->c_str());
}
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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