llvm-project/clang-tools-extra/unittests/clang-tidy/ClangTidyTest.h

77 lines
2.5 KiB
C++

//===--- ClangTidyTest.h - clang-tidy ---------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_UNITTESTS_CLANG_TIDY_CLANG_TIDY_TEST_H
#define LLVM_CLANG_TOOLS_EXTRA_UNITTESTS_CLANG_TIDY_CLANG_TIDY_TEST_H
#include "ClangTidy.h"
#include "ClangTidyDiagnosticConsumer.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Frontend/FrontendActions.h"
#include "clang/Tooling/Refactoring.h"
#include "clang/Tooling/Tooling.h"
#include "gtest/gtest.h"
namespace clang {
namespace tidy {
template <typename T> class ClangTidyTest : public ::testing::Test {
protected:
ClangTidyTest() : Check(new T), Context(&Errors) {}
std::string runCheckOn(StringRef Code) {
ClangTidyDiagnosticConsumer DiagConsumer(Context);
Check->setContext(&Context);
EXPECT_TRUE(
tooling::runToolOnCode(new TestPPAction(*Check, &Context), Code));
ast_matchers::MatchFinder Finder;
Check->registerMatchers(&Finder);
OwningPtr<tooling::FrontendActionFactory> Factory(
tooling::newFrontendActionFactory(&Finder));
EXPECT_TRUE(tooling::runToolOnCode(Factory->create(), Code));
DiagConsumer.finish();
tooling::Replacements Fixes;
for (SmallVector<ClangTidyError, 16>::const_iterator I = Errors.begin(),
E = Errors.end();
I != E; ++I)
Fixes.insert(I->Fix.begin(), I->Fix.end());
return tooling::applyAllReplacements(Code, Fixes);
}
void expectNoChanges(StringRef Code) { EXPECT_EQ(Code, runCheckOn(Code)); }
private:
class TestPPAction : public PreprocessOnlyAction {
public:
TestPPAction(ClangTidyCheck &Check, ClangTidyContext *Context)
: Check(Check), Context(Context) {}
private:
virtual bool BeginSourceFileAction(CompilerInstance &Compiler,
llvm::StringRef file_name) {
Context->setSourceManager(&Compiler.getSourceManager());
Check.registerPPCallbacks(Compiler);
return true;
}
ClangTidyCheck &Check;
ClangTidyContext *Context;
};
OwningPtr<ClangTidyCheck> Check;
SmallVector<ClangTidyError, 16> Errors;
ClangTidyContext Context;
};
} // namespace tidy
} // namespace clang
#endif // LLVM_CLANG_TOOLS_EXTRA_UNITTESTS_CLANG_TIDY_CLANG_TIDY_TEST_H