1 //===- unittest/Support/ProgramTest.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/CommandLine.h" 11 #include "llvm/Support/FileSystem.h" 12 #include "llvm/Support/Path.h" 13 #include "llvm/Support/PathV1.h" 14 #include "llvm/Support/Program.h" 15 #include "gtest/gtest.h" 16 17 #include <stdlib.h> 18 #if defined(__APPLE__) 19 # include <crt_externs.h> 20 #elif !defined(_MSC_VER) 21 // Forward declare environ in case it's not provided by stdlib.h. 22 extern char **environ; 23 #endif 24 25 // From TestMain.cpp. 26 extern const char *TestMainArgv0; 27 28 namespace { 29 30 using namespace llvm; 31 using namespace sys; 32 33 static cl::opt<std::string> 34 ProgramTestStringArg1("program-test-string-arg1"); 35 static cl::opt<std::string> 36 ProgramTestStringArg2("program-test-string-arg2"); 37 38 static void CopyEnvironment(std::vector<const char *> &out) { 39 #ifdef __APPLE__ 40 char **envp = *_NSGetEnviron(); 41 #else 42 // environ seems to work for Windows and most other Unices. 43 char **envp = environ; 44 #endif 45 while (*envp != 0) { 46 out.push_back(*envp); 47 ++envp; 48 } 49 } 50 51 TEST(ProgramTest, CreateProcessTrailingSlash) { 52 if (getenv("LLVM_PROGRAM_TEST_CHILD")) { 53 if (ProgramTestStringArg1 == "has\\\\ trailing\\" && 54 ProgramTestStringArg2 == "has\\\\ trailing\\") { 55 exit(0); // Success! The arguments were passed and parsed. 56 } 57 exit(1); 58 } 59 60 std::string my_exe = 61 sys::fs::getMainExecutable(TestMainArgv0, &ProgramTestStringArg1); 62 const char *argv[] = { 63 my_exe.c_str(), 64 "--gtest_filter=ProgramTest.CreateProcessTrailingSlashChild", 65 "-program-test-string-arg1", "has\\\\ trailing\\", 66 "-program-test-string-arg2", "has\\\\ trailing\\", 67 0 68 }; 69 70 // Add LLVM_PROGRAM_TEST_CHILD to the environment of the child. 71 std::vector<const char *> envp; 72 CopyEnvironment(envp); 73 envp.push_back("LLVM_PROGRAM_TEST_CHILD=1"); 74 envp.push_back(0); 75 76 std::string error; 77 bool ExecutionFailed; 78 // Redirect stdout and stdin to NUL, but let stderr through. 79 #ifdef LLVM_ON_WIN32 80 StringRef nul("NUL"); 81 #else 82 StringRef nul("/dev/null"); 83 #endif 84 const StringRef *redirects[] = { &nul, &nul, 0 }; 85 int rc = ExecuteAndWait(my_exe, argv, &envp[0], redirects, 86 /*secondsToWait=*/ 10, /*memoryLimit=*/ 0, &error, 87 &ExecutionFailed); 88 EXPECT_FALSE(ExecutionFailed) << error; 89 EXPECT_EQ(0, rc); 90 } 91 92 } // end anonymous namespace 93