1 //===- unittest/Support/ProgramTest.cpp -----------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "llvm/Support/CommandLine.h"
11 #include "llvm/Support/FileSystem.h"
12 #include "llvm/Support/Path.h"
13 #include "llvm/Support/Program.h"
14 #include "gtest/gtest.h"
17 #if defined(__APPLE__)
18 # include <crt_externs.h>
19 #elif !defined(_MSC_VER)
20 // Forward declare environ in case it's not provided by stdlib.h.
21 extern char **environ;
25 extern const char *TestMainArgv0;
32 static cl::opt<std::string>
33 ProgramTestStringArg1("program-test-string-arg1");
34 static cl::opt<std::string>
35 ProgramTestStringArg2("program-test-string-arg2");
37 static void CopyEnvironment(std::vector<const char *> &out) {
39 char **envp = *_NSGetEnviron();
41 // environ seems to work for Windows and most other Unices.
42 char **envp = environ;
50 TEST(ProgramTest, CreateProcessTrailingSlash) {
51 if (getenv("LLVM_PROGRAM_TEST_CHILD")) {
52 if (ProgramTestStringArg1 == "has\\\\ trailing\\" &&
53 ProgramTestStringArg2 == "has\\\\ trailing\\") {
54 exit(0); // Success! The arguments were passed and parsed.
60 sys::fs::getMainExecutable(TestMainArgv0, &ProgramTestStringArg1);
61 const char *argv[] = {
63 "--gtest_filter=ProgramTest.CreateProcessTrailingSlashChild",
64 "-program-test-string-arg1", "has\\\\ trailing\\",
65 "-program-test-string-arg2", "has\\\\ trailing\\",
69 // Add LLVM_PROGRAM_TEST_CHILD to the environment of the child.
70 std::vector<const char *> envp;
71 CopyEnvironment(envp);
72 envp.push_back("LLVM_PROGRAM_TEST_CHILD=1");
77 // Redirect stdout and stdin to NUL, but let stderr through.
81 StringRef nul("/dev/null");
83 const StringRef *redirects[] = { &nul, &nul, 0 };
84 int rc = ExecuteAndWait(my_exe, argv, &envp[0], redirects,
85 /*secondsToWait=*/ 10, /*memoryLimit=*/ 0, &error,
87 EXPECT_FALSE(ExecutionFailed) << error;
91 } // end anonymous namespace