llvm/unittests/Support/CommandLineInit/CommandLineInitTest.cpp

   1 //===- llvm/unittest/Support/CommandLineInit/CommandLineInitTest.cpp ------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 /// \file
  10 /// Check if preset options in libSupport -- e.g., "help", "version", etc. --
  11 /// are correctly initialized and registered before getRegisteredOptions is
  12 /// invoked.
  13 ///
  14 /// Most code here comes from llvm/utils/unittest/UnitTestMain/TestMain.cpp,
  15 /// except that llvm::cl::ParseCommandLineOptions() call is removed.
  16 //
  17 //===----------------------------------------------------------------------===//
  18
  19 #include "llvm/Support/CommandLine.h"
  20 #include "gtest/gtest.h"
  21
  22 #if defined(_WIN32)
  23 #include <windows.h>
  24 #if defined(_MSC_VER)
  25 #include <crtdbg.h>
  26 #endif
  27 #endif
  28
  29 using namespace llvm;
  30
  31 int main(int argc, char **argv) {
  32   testing::InitGoogleTest(&argc, argv);
  33
  34 #if defined(_WIN32)
  35   // Disable all of the possible ways Windows conspires to make automated
  36   // testing impossible.
  37   ::SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX);
  38 #if defined(_MSC_VER)
  39   ::_set_error_mode(_OUT_TO_STDERR);
  40   _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
  41   _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
  42   _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
  43   _CrtSetReportFile(_CRT_ERROR, _CRTDBG_FILE_STDERR);
  44   _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
  45   _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);
  46 #endif
  47 #endif
  48
  49   return RUN_ALL_TESTS();
  50 }
  51
  52 TEST(CommandLineInitTest, GetPresetOptions) {
  53   StringMap<cl::Option *> &Map =
  54       cl::getRegisteredOptions(cl::SubCommand::getTopLevel());
  55
  56   for (auto *Str :
  57        {"help", "help-hidden", "help-list", "help-list-hidden", "version"})
  58     EXPECT_EQ(Map.count(Str), (size_t)1)
  59         << "Could not get preset option `" << Str << '`';
  60 }