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

#include "ClangTidyOptions.h"
#include "gtest/gtest.h"

namespace clang {
namespace tidy {
namespace test {

TEST(ParseLineFilter, EmptyFilter) {
  ClangTidyOptions Options;
  EXPECT_FALSE(parseLineFilter("", Options));
  EXPECT_TRUE(Options.LineFilter.empty());
  EXPECT_FALSE(parseLineFilter("[]", Options));
  EXPECT_TRUE(Options.LineFilter.empty());
}

TEST(ParseLineFilter, InvalidFilter) {
  ClangTidyOptions Options;
  // TODO: Figure out why parsing succeeds here.
  EXPECT_FALSE(parseLineFilter("asdf", Options));
  EXPECT_TRUE(Options.LineFilter.empty());

  EXPECT_TRUE(parseLineFilter("[{}]", Options));
  EXPECT_TRUE(parseLineFilter(R"([{"name":""}])", Options));
  EXPECT_TRUE(parseLineFilter(R"([{"name":"test","lines":[[1]]}])", Options));
  EXPECT_TRUE(
      parseLineFilter(R"([{"name":"test","lines":[[1,2,3]]}])", Options));
  EXPECT_TRUE(
      parseLineFilter(R"([{"name":"test","lines":[[1,-1]]}])", Options));
}

TEST(ParseLineFilter, ValidFilter) {
  ClangTidyOptions Options;
  llvm::error_code Error = parseLineFilter(
      R"([{"name":"file1.cpp","lines":[[3,15],[20,30],[42,42]]},
          {"name":"file2.h"},
          {"name":"file3.cc","lines":[[100,1000]]}])",
      Options);
  EXPECT_FALSE(Error);
  EXPECT_EQ(3u, Options.LineFilter.size());
  EXPECT_EQ("file1.cpp", Options.LineFilter[0].Name);
  EXPECT_EQ(3u, Options.LineFilter[0].LineRanges.size());
  EXPECT_EQ(3u, Options.LineFilter[0].LineRanges[0].first);
  EXPECT_EQ(15u, Options.LineFilter[0].LineRanges[0].second);
  EXPECT_EQ(20u, Options.LineFilter[0].LineRanges[1].first);
  EXPECT_EQ(30u, Options.LineFilter[0].LineRanges[1].second);
  EXPECT_EQ(42u, Options.LineFilter[0].LineRanges[2].first);
  EXPECT_EQ(42u, Options.LineFilter[0].LineRanges[2].second);
  EXPECT_EQ("file2.h", Options.LineFilter[1].Name);
  EXPECT_EQ(0u, Options.LineFilter[1].LineRanges.size());
  EXPECT_EQ("file3.cc", Options.LineFilter[2].Name);
  EXPECT_EQ(1u, Options.LineFilter[2].LineRanges.size());
  EXPECT_EQ(100u, Options.LineFilter[2].LineRanges[0].first);
  EXPECT_EQ(1000u, Options.LineFilter[2].LineRanges[0].second);
}

} // namespace test
} // namespace tidy
} // namespace clang