clang-tools-extra/include-cleaner/unittests/TypesTest.cpp

   1 //===-- RecordTest.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 #include "clang-include-cleaner/Types.h"
  10 #include "clang/Basic/FileManager.h"
  11 #include "clang/Tooling/Inclusions/StandardLibrary.h"
  12 #include "llvm/ADT/IntrusiveRefCntPtr.h"
  13 #include "llvm/Support/VirtualFileSystem.h"
  14 #include "gmock/gmock.h"
  15 #include "gtest/gtest.h"
  16
  17 namespace clang::include_cleaner {
  18 namespace {
  19 using testing::ElementsAre;
  20
  21 // Matches an Include* on the specified line;
  22 MATCHER_P(line, N, "") { return arg->Line == (unsigned)N; }
  23
  24 TEST(RecordedIncludesTest, Match) {
  25   // We're using synthetic data, but need a FileManager to obtain FileEntry*s.
  26   // Ensure it doesn't do any actual IO.
  27   auto FS = llvm::makeIntrusiveRefCnt<llvm::vfs::InMemoryFileSystem>();
  28   FileManager FM(FileSystemOptions{});
  29   const FileEntry *A = FM.getVirtualFile("/path/a", /*Size=*/0, time_t{});
  30   const FileEntry *B = FM.getVirtualFile("/path/b", /*Size=*/0, time_t{});
  31
  32   Includes Inc;
  33   Inc.add(Include{"a", A, SourceLocation(), 1});
  34   Inc.add(Include{"a2", A, SourceLocation(), 2});
  35   Inc.add(Include{"b", B, SourceLocation(), 3});
  36   Inc.add(Include{"vector", B, SourceLocation(), 4});
  37   Inc.add(Include{"vector", B, SourceLocation(), 5});
  38   Inc.add(Include{"missing", nullptr, SourceLocation(), 6});
  39
  40   EXPECT_THAT(Inc.match(A), ElementsAre(line(1), line(2)));
  41   EXPECT_THAT(Inc.match(B), ElementsAre(line(3), line(4), line(5)));
  42   EXPECT_THAT(Inc.match(*tooling::stdlib::Header::named("<vector>")),
  43               ElementsAre(line(4), line(5)));
  44 }
  45
  46 } // namespace
  47 } // namespace clang::include_cleaner