1//===- unittest/Support/ProcessTest.cpp -----------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "llvm/Support/Process.h"
11#include "gtest/gtest.h"
12
13#ifdef LLVM_ON_WIN32
14#include <windows.h>
15#endif
16
17namespace {
18
19using namespace llvm;
20using namespace sys;
21
22TEST(ProcessTest, GetRandomNumberTest) {
23  const unsigned r1 = Process::GetRandomNumber();
24  const unsigned r2 = Process::GetRandomNumber();
25  // It should be extremely unlikely that both r1 and r2 are 0.
26  EXPECT_NE((r1 | r2), 0u);
27}
28
29#ifdef _MSC_VER
30#define setenv(name, var, ignore) _putenv_s(name, var)
31#endif
32
33#if HAVE_SETENV || _MSC_VER
34TEST(ProcessTest, Basic) {
35  setenv("__LLVM_TEST_ENVIRON_VAR__", "abc", true);
36  Optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__"));
37  EXPECT_TRUE(val.hasValue());
38  EXPECT_STREQ("abc", val->c_str());
39}
40
41TEST(ProcessTest, None) {
42  Optional<std::string> val(
43      Process::GetEnv("__LLVM_TEST_ENVIRON_NO_SUCH_VAR__"));
44  EXPECT_FALSE(val.hasValue());
45}
46#endif
47
48#ifdef LLVM_ON_WIN32
49TEST(ProcessTest, Wchar) {
50  SetEnvironmentVariableW(L"__LLVM_TEST_ENVIRON_VAR__", L"abcdefghijklmnopqrs");
51  Optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__"));
52  EXPECT_TRUE(val.hasValue());
53  EXPECT_STREQ("abcdefghijklmnopqrs", val->c_str());
54}
55#endif
56
57} // end anonymous namespace
58