unittests/Support/ProgramTest.cpp

   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
  17 namespace {
  18
  19 using namespace llvm;
  20 using namespace sys;
  21
  22 static cl::opt<std::string>
  23 ProgramTestStringArg1("program-test-string-arg1");
  24 static cl::opt<std::string>
  25 ProgramTestStringArg2("program-test-string-arg2");
  26
  27 TEST(ProgramTest, CreateProcessTrailingSlash) {
  28   if (getenv("LLVM_PROGRAM_TEST_CHILD")) {
  29     if (ProgramTestStringArg1 == "has\\\\ trailing\\" &&
  30         ProgramTestStringArg2 == "has\\\\ trailing\\") {
  31       exit(0);  // Success!  The arguments were passed and parsed.
  32     }
  33     exit(1);
  34   }
  35
  36   // FIXME: Hardcoding argv0 here since I don't know a good cross-platform way
  37   // to get it.  Maybe ParseCommandLineOptions() should save it?
  38   Path my_exe = Path::GetMainExecutable("SupportTests", &ProgramTestStringArg1);
  39   const char *argv[] = {
  40     my_exe.c_str(),
  41     "--gtest_filter=ProgramTest.CreateProcessTrailingSlashChild",
  42     "-program-test-string-arg1", "has\\\\ trailing\\",
  43     "-program-test-string-arg2", "has\\\\ trailing\\",
  44     0
  45   };
  46   const char *envp[] = { "LLVM_PROGRAM_TEST_CHILD=1", 0 };
  47   std::string error;
  48   bool ExecutionFailed;
  49   // Redirect stdout and stdin to NUL, but let stderr through.
  50 #ifdef LLVM_ON_WIN32
  51   Path nul("NUL");
  52 #else
  53   Path nul("/dev/null");
  54 #endif
  55   const Path *redirects[] = { &nul, &nul, 0 };
  56   int rc = Program::ExecuteAndWait(my_exe, argv, envp, redirects,
  57                                    /*secondsToWait=*/10, /*memoryLimit=*/0,
  58                                    &error, &ExecutionFailed);
  59   EXPECT_FALSE(ExecutionFailed) << error;
  60   EXPECT_EQ(0, rc);
  61 }
  62
  63 } // end anonymous namespace