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//===-- ClangMoveTest.cpp - clang-move unit tests -------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "ClangMove.h"
#include "unittests/Tooling/RewriterTestContext.h"
#include "clang/Format/Format.h"
#include "clang/Frontend/FrontendActions.h"
#include "clang/Frontend/TextDiagnosticPrinter.h"
#include "clang/Rewrite/Core/Rewriter.h"
#include "clang/Tooling/Refactoring.h"
#include "clang/Tooling/Tooling.h"
#include "llvm/ADT/StringRef.h"
#include "gtest/gtest.h"
#include <string>
#include <vector>
namespace clang {
namespace move {
namespace {
const char TestHeaderName[] = "foo.h";
const char TestCCName[] = "foo.cc";
const char TestHeader[] = "namespace a {\n"
"class C1; // test\n"
"namespace b {\n"
"// This is a Foo class\n"
"// which is used in\n"
"// test.\n"
"class Foo {\n"
"public:\n"
" void f();\n"
"\n"
"private:\n"
" C1 *c1;\n"
" static int b;\n"
"}; // abc\n"
"\n"
"class Foo2 {\n"
"public:\n"
" int f();\n"
"};\n"
"} // namespace b\n"
"} // namespace a\n";
const char TestCC[] = "#include \"foo.h\"\n"
"namespace a {\n"
"namespace b {\n"
"namespace {\n"
"// comment1.\n"
"void f1() {}\n"
"/// comment2.\n"
"int kConstInt1 = 0;\n"
"} // namespace\n"
"\n"
"/* comment 3*/\n"
"static int kConstInt2 = 1;\n"
"\n"
"/** comment4\n"
"*/\n"
"static int help() {\n"
" int a = 0;\n"
" return a;\n"
"}\n"
"\n"
"// comment5\n"
"// comment5\n"
"void Foo::f() { f1(); }\n"
"\n"
"/////////////\n"
"// comment //\n"
"/////////////\n"
"int Foo::b = 2;\n"
"int Foo2::f() {\n"
" f1();\n"
" return 1;\n"
"}\n"
"} // namespace b\n"
"} // namespace a\n";
const char ExpectedTestHeader[] = "namespace a {\n"
"class C1; // test\n"
"namespace b {\n"
"\n"
"class Foo2 {\n"
"public:\n"
" int f();\n"
"};\n"
"} // namespace b\n"
"} // namespace a\n";
const char ExpectedTestCC[] = "#include \"foo.h\"\n"
"namespace a {\n"
"namespace b {\n"
"namespace {\n"
"// comment1.\n"
"void f1() {}\n"
"/// comment2.\n"
"int kConstInt1 = 0;\n"
"} // namespace\n"
"\n"
"/* comment 3*/\n"
"static int kConstInt2 = 1;\n"
"\n"
"/** comment4\n"
"*/\n"
"static int help() {\n"
" int a = 0;\n"
" return a;\n"
"}\n"
"\n"
"int Foo2::f() {\n"
" f1();\n"
" return 1;\n"
"}\n"
"} // namespace b\n"
"} // namespace a\n";
const char ExpectedNewHeader[] = "#ifndef NEW_FOO_H\n"
"#define NEW_FOO_H\n"
"namespace a {\n"
"class C1; // test\n"
"namespace b {\n"
"// This is a Foo class\n"
"// which is used in\n"
"// test.\n"
"class Foo {\n"
"public:\n"
" void f();\n"
"\n"
"private:\n"
" C1 *c1;\n"
" static int b;\n"
"}; // abc\n"
"} // namespace b\n"
"} // namespace a\n"
"#endif // NEW_FOO_H\n";
const char ExpectedNewCC[] = "namespace a {\n"
"namespace b {\n"
"namespace {\n"
"// comment1.\n"
"void f1() {}\n"
"/// comment2.\n"
"int kConstInt1 = 0;\n"
"} // namespace\n"
"/* comment 3*/\n"
"static int kConstInt2 = 1;\n"
"/** comment4\n"
"*/\n"
"static int help() {\n"
" int a = 0;\n"
" return a;\n"
"}\n"
"// comment5\n"
"// comment5\n"
"void Foo::f() { f1(); }\n"
"/////////////\n"
"// comment //\n"
"/////////////\n"
"int Foo::b = 2;\n"
"} // namespace b\n"
"} // namespace a\n";
std::map<std::string, std::string>
runClangMoveOnCode(const move::ClangMoveTool::MoveDefinitionSpec &Spec) {
clang::RewriterTestContext Context;
std::map<llvm::StringRef, clang::FileID> FileToFileID;
std::vector<std::pair<std::string, std::string>> FileToSourceText = {
{TestHeaderName, TestHeader}, {TestCCName, TestCC}};
auto CreateFiles = [&FileToSourceText, &Context, &FileToFileID](
llvm::StringRef Name, llvm::StringRef Code) {
if (!Name.empty()) {
FileToSourceText.emplace_back(Name, Code);
FileToFileID[Name] = Context.createInMemoryFile(Name, Code);
}
};
CreateFiles(Spec.NewCC, "");
CreateFiles(Spec.NewHeader, "");
CreateFiles(Spec.OldHeader, TestHeader);
CreateFiles(Spec.OldCC, TestCC);
std::map<std::string, tooling::Replacements> FileToReplacements;
llvm::SmallString<128> InitialDirectory;
std::error_code EC = llvm::sys::fs::current_path(InitialDirectory);
assert(!EC);
(void)EC;
auto Factory = llvm::make_unique<clang::move::ClangMoveActionFactory>(
Spec, FileToReplacements, InitialDirectory.str(), "LLVM");
tooling::runToolOnCodeWithArgs(
Factory->create(), TestCC, {"-std=c++11", "-fparse-all-comments"},
TestCCName, "clang-move", std::make_shared<PCHContainerOperations>(),
FileToSourceText);
formatAndApplyAllReplacements(FileToReplacements, Context.Rewrite, "llvm");
// The Key is file name, value is the new code after moving the class.
std::map<std::string, std::string> Results;
for (const auto &It : FileToReplacements) {
StringRef FilePath = It.first;
Results[FilePath] = Context.getRewrittenText(FileToFileID[FilePath]);
}
return Results;
}
TEST(ClangMove, MoveHeaderAndCC) {
move::ClangMoveTool::MoveDefinitionSpec Spec;
Spec.Names = {std::string("a::b::Foo")};
Spec.OldHeader = "foo.h";
Spec.OldCC = "foo.cc";
Spec.NewHeader = "new_foo.h";
Spec.NewCC = "new_foo.cc";
std::string ExpectedHeader = "#include \"" + Spec.NewHeader + "\"\n\n";
auto Results = runClangMoveOnCode(Spec);
EXPECT_EQ(ExpectedTestHeader, Results[Spec.OldHeader]);
EXPECT_EQ(ExpectedTestCC, Results[Spec.OldCC]);
EXPECT_EQ(ExpectedNewHeader, Results[Spec.NewHeader]);
EXPECT_EQ(ExpectedHeader + ExpectedNewCC, Results[Spec.NewCC]);
}
TEST(ClangMove, MoveHeaderOnly) {
move::ClangMoveTool::MoveDefinitionSpec Spec;
Spec.Names = {std::string("a::b::Foo")};
Spec.OldHeader = "foo.h";
Spec.NewHeader = "new_foo.h";
auto Results = runClangMoveOnCode(Spec);
EXPECT_EQ(2u, Results.size());
EXPECT_EQ(ExpectedTestHeader, Results[Spec.OldHeader]);
EXPECT_EQ(ExpectedNewHeader, Results[Spec.NewHeader]);
}
TEST(ClangMove, MoveCCOnly) {
move::ClangMoveTool::MoveDefinitionSpec Spec;
Spec.Names = {std::string("a::b::Foo")};
Spec.OldCC = "foo.cc";
Spec.NewCC = "new_foo.cc";
std::string ExpectedHeader = "#include \"foo.h\"\n\n";
auto Results = runClangMoveOnCode(Spec);
EXPECT_EQ(2u, Results.size());
EXPECT_EQ(ExpectedTestCC, Results[Spec.OldCC]);
EXPECT_EQ(ExpectedHeader + ExpectedNewCC, Results[Spec.NewCC]);
}
TEST(ClangMove, MoveNonExistClass) {
move::ClangMoveTool::MoveDefinitionSpec Spec;
Spec.Names = {std::string("NonExistFoo")};
Spec.OldHeader = "foo.h";
Spec.OldCC = "foo.cc";
Spec.NewHeader = "new_foo.h";
Spec.NewCC = "new_foo.cc";
auto Results = runClangMoveOnCode(Spec);
EXPECT_EQ(0u, Results.size());
}
} // namespace
} // namespce move
} // namespace clang
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