ProcessTest.cpp revision 3014066976dd24d8ca565dd5fabe4d5a6144574f 
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, SelfProcess) {
23  EXPECT_TRUE(process::get_self());
24  EXPECT_EQ(process::get_self(), process::get_self());
25
26#if defined(LLVM_ON_UNIX)
27  EXPECT_EQ(getpid(), process::get_self()->get_id());
28#elif defined(LLVM_ON_WIN32)
29  EXPECT_EQ(GetCurrentProcessId(), process::get_self()->get_id());
30#endif
31
32  EXPECT_LT(1u, process::get_self()->page_size());
33
34  EXPECT_LT(TimeValue::MinTime, process::get_self()->get_user_time());
35  EXPECT_GT(TimeValue::MaxTime, process::get_self()->get_user_time());
36  EXPECT_LT(TimeValue::MinTime, process::get_self()->get_system_time());
37  EXPECT_GT(TimeValue::MaxTime, process::get_self()->get_system_time());
38  EXPECT_LT(TimeValue::MinTime, process::get_self()->get_wall_time());
39  EXPECT_GT(TimeValue::MaxTime, process::get_self()->get_wall_time());
40}
41
42#ifdef _MSC_VER
43#define setenv(name, var, ignore) _putenv_s(name, var)
44#endif
45
46#if HAVE_SETENV || _MSC_VER
47TEST(ProcessTest, Basic) {
48  setenv("__LLVM_TEST_ENVIRON_VAR__", "abc", true);
49  Optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__"));
50  EXPECT_TRUE(val.hasValue());
51  EXPECT_STREQ("abc", val->c_str());
52}
53
54TEST(ProcessTest, None) {
55  Optional<std::string> val(
56      Process::GetEnv("__LLVM_TEST_ENVIRON_NO_SUCH_VAR__"));
57  EXPECT_FALSE(val.hasValue());
58}
59#endif
60
61#ifdef LLVM_ON_WIN32
62TEST(ProcessTest, Wchar) {
63  SetEnvironmentVariableW(L"__LLVM_TEST_ENVIRON_VAR__", L"abcdefghijklmnopqrs");
64  Optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__"));
65  EXPECT_TRUE(val.hasValue());
66  EXPECT_STREQ("abcdefghijklmnopqrs", val->c_str());
67}
68#endif
69
70} // end anonymous namespace
71