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 17 namespace { 18 19 using namespace llvm; 20 using namespace sys; 21 22 TEST(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 TEST(ProcessTest, GetRandomNumberTest) { 43 const unsigned r1 = Process::GetRandomNumber(); 44 const unsigned r2 = Process::GetRandomNumber(); 45 // It should be extremely unlikely that both r1 and r2 are 0. 46 EXPECT_NE((r1 | r2), 0u); 47 } 48 49 #ifdef _MSC_VER 50 #define setenv(name, var, ignore) _putenv_s(name, var) 51 #endif 52 53 #if HAVE_SETENV || _MSC_VER 54 TEST(ProcessTest, Basic) { 55 setenv("__LLVM_TEST_ENVIRON_VAR__", "abc", true); 56 Optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__")); 57 EXPECT_TRUE(val.hasValue()); 58 EXPECT_STREQ("abc", val->c_str()); 59 } 60 61 TEST(ProcessTest, None) { 62 Optional<std::string> val( 63 Process::GetEnv("__LLVM_TEST_ENVIRON_NO_SUCH_VAR__")); 64 EXPECT_FALSE(val.hasValue()); 65 } 66 #endif 67 68 #ifdef LLVM_ON_WIN32 69 TEST(ProcessTest, Wchar) { 70 SetEnvironmentVariableW(L"__LLVM_TEST_ENVIRON_VAR__", L"abcdefghijklmnopqrs"); 71 Optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__")); 72 EXPECT_TRUE(val.hasValue()); 73 EXPECT_STREQ("abcdefghijklmnopqrs", val->c_str()); 74 } 75 #endif 76 77 } // end anonymous namespace 78
