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/Path.h" 12 #include "llvm/Support/Program.h" 13 #include "gtest/gtest.h" 14 15 #include <stdlib.h> 16 #ifdef __APPLE__ 17 # include <crt_externs.h> 18 #else 19 // Forward declare environ in case it's not provided by stdlib.h. 20 extern char **environ; 21 #endif 22 23 namespace { 24 25 using namespace llvm; 26 using namespace sys; 27 28 static cl::opt<std::string> 29 ProgramTestStringArg1("program-test-string-arg1"); 30 static cl::opt<std::string> 31 ProgramTestStringArg2("program-test-string-arg2"); 32 33 static void CopyEnvironment(std::vector<const char *> &out) { 34 #ifdef __APPLE__ 35 // _NSGetEnviron() only works from the main exe on Mac. Fortunately the test 36 // should be in the executable. 37 char **envp = *_NSGetEnviron(); 38 #else 39 // environ seems to work for Windows and most other Unices. 40 char **envp = environ; 41 #endif 42 while (*envp != 0) { 43 out.push_back(*envp); 44 ++envp; 45 } 46 } 47 48 TEST(ProgramTest, CreateProcessTrailingSlash) { 49 if (getenv("LLVM_PROGRAM_TEST_CHILD")) { 50 if (ProgramTestStringArg1 == "has\\\\ trailing\\" && 51 ProgramTestStringArg2 == "has\\\\ trailing\\") { 52 exit(0); // Success! The arguments were passed and parsed. 53 } 54 exit(1); 55 } 56 57 // FIXME: Hardcoding argv0 here since I don't know a good cross-platform way 58 // to get it. Maybe ParseCommandLineOptions() should save it? 59 Path my_exe = Path::GetMainExecutable("SupportTests", &ProgramTestStringArg1); 60 const char *argv[] = { 61 my_exe.c_str(), 62 "--gtest_filter=ProgramTest.CreateProcessTrailingSlashChild", 63 "-program-test-string-arg1", "has\\\\ trailing\\", 64 "-program-test-string-arg2", "has\\\\ trailing\\", 65 0 66 }; 67 68 // Add LLVM_PROGRAM_TEST_CHILD to the environment of the child. 69 std::vector<const char *> envp; 70 CopyEnvironment(envp); 71 envp.push_back("LLVM_PROGRAM_TEST_CHILD=1"); 72 envp.push_back(0); 73 74 std::string error; 75 bool ExecutionFailed; 76 // Redirect stdout and stdin to NUL, but let stderr through. 77 #ifdef LLVM_ON_WIN32 78 Path nul("NUL"); 79 #else 80 Path nul("/dev/null"); 81 #endif 82 const Path *redirects[] = { &nul, &nul, 0 }; 83 int rc = Program::ExecuteAndWait(my_exe, argv, &envp[0], redirects, 84 /*secondsToWait=*/10, /*memoryLimit=*/0, 85 &error, &ExecutionFailed); 86 EXPECT_FALSE(ExecutionFailed) << error; 87 EXPECT_EQ(0, rc); 88 } 89 90 } // end anonymous namespace 91