clang-tools-extra/unittests/clang-tidy/OptionsProviderTest.cpp

   1 //===---- ObjCModuleTest.cpp - clang-tidy ---------------------------------===//
   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 #include "ClangTidyOptions.h"
  10 #include "clang/Basic/LLVM.h"
  11 #include "llvm/Support/MemoryBuffer.h"
  12 #include "llvm/Support/VirtualFileSystem.h"
  13 #include "gtest/gtest.h"
  14
  15 namespace clang {
  16 namespace tidy {
  17 namespace test {
  18
  19 TEST(ClangTidyOptionsProvider, InMemoryFileSystems) {
  20   llvm::IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> FileSystem(
  21       new llvm::vfs::InMemoryFileSystem);
  22
  23   StringRef BaseClangTidy = R"(
  24     Checks: -*,clang-diagnostic-*
  25   )";
  26   StringRef Sub1ClangTidy = R"(
  27     Checks: readability-*
  28     InheritParentConfig: true
  29   )";
  30   StringRef Sub2ClangTidy = R"(
  31     Checks: bugprone-*,misc-*,clang-diagnostic-*
  32     InheritParentConfig: false
  33     )";
  34   FileSystem->addFile("ProjectRoot/.clang-tidy", 0,
  35                       llvm::MemoryBuffer::getMemBuffer(BaseClangTidy));
  36   FileSystem->addFile("ProjectRoot/SubDir1/.clang-tidy", 0,
  37                       llvm::MemoryBuffer::getMemBuffer(Sub1ClangTidy));
  38   FileSystem->addFile("ProjectRoot/SubDir1/File.cpp", 0,
  39                       llvm::MemoryBuffer::getMemBuffer(""));
  40   FileSystem->addFile("ProjectRoot/SubDir1/SubDir2/.clang-tidy", 0,
  41                       llvm::MemoryBuffer::getMemBuffer(Sub2ClangTidy));
  42   FileSystem->addFile("ProjectRoot/SubDir1/SubDir2/File.cpp", 0,
  43                       llvm::MemoryBuffer::getMemBuffer(""));
  44   FileSystem->addFile("ProjectRoot/SubDir1/SubDir2/SubDir3/File.cpp", 0,
  45                       llvm::MemoryBuffer::getMemBuffer(""));
  46
  47   FileOptionsProvider FileOpt({}, {}, {}, FileSystem);
  48
  49   ClangTidyOptions File1Options =
  50       FileOpt.getOptions("ProjectRoot/SubDir1/File.cpp");
  51   ClangTidyOptions File2Options =
  52       FileOpt.getOptions("ProjectRoot/SubDir1/SubDir2/File.cpp");
  53   ClangTidyOptions File3Options =
  54       FileOpt.getOptions("ProjectRoot/SubDir1/SubDir2/SubDir3/File.cpp");
  55
  56   ASSERT_TRUE(File1Options.Checks.has_value());
  57   EXPECT_EQ(*File1Options.Checks, "-*,clang-diagnostic-*,readability-*");
  58   ASSERT_TRUE(File2Options.Checks.has_value());
  59   EXPECT_EQ(*File2Options.Checks, "bugprone-*,misc-*,clang-diagnostic-*");
  60
  61   // 2 and 3 should use the same config so these should also be the same.
  62   EXPECT_EQ(File2Options.Checks, File3Options.Checks);
  63 }
  64
  65 } // namespace test
  66 } // namespace tidy
  67 } // namespace clang