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//===- unittest/Tooling/ToolingTest.cpp - Tooling unit tests --------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/Twine.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclGroup.h"
#include "clang/Frontend/FrontendAction.h"
#include "clang/Tooling/Tooling.h"
#include "gtest/gtest.h"
namespace clang {
namespace tooling {
namespace {
/// Takes an ast consumer and returns it from CreateASTConsumer. This only
/// works with single translation unit compilations.
class TestAction : public clang::ASTFrontendAction {
public:
/// Takes ownership of TestConsumer.
explicit TestAction(clang::ASTConsumer *TestConsumer)
: TestConsumer(TestConsumer) {}
protected:
virtual clang::ASTConsumer* CreateASTConsumer(
clang::CompilerInstance& compiler, llvm::StringRef dummy) {
/// TestConsumer will be deleted by the framework calling us.
return TestConsumer;
}
private:
clang::ASTConsumer * const TestConsumer;
};
class FindTopLevelDeclConsumer : public clang::ASTConsumer {
public:
explicit FindTopLevelDeclConsumer(bool *FoundTopLevelDecl)
: FoundTopLevelDecl(FoundTopLevelDecl) {}
virtual void HandleTopLevelDecl(clang::DeclGroupRef DeclGroup) {
*FoundTopLevelDecl = true;
}
private:
bool * const FoundTopLevelDecl;
};
} // end namespace
TEST(RunSyntaxOnlyToolOnCode, FindsTopLevelDeclOnEmptyCode) {
bool FoundTopLevelDecl = false;
EXPECT_TRUE(RunSyntaxOnlyToolOnCode(
new TestAction(new FindTopLevelDeclConsumer(&FoundTopLevelDecl)), ""));
EXPECT_TRUE(FoundTopLevelDecl);
}
namespace {
class FindClassDeclXConsumer : public clang::ASTConsumer {
public:
FindClassDeclXConsumer(bool *FoundClassDeclX)
: FoundClassDeclX(FoundClassDeclX) {}
virtual void HandleTopLevelDecl(clang::DeclGroupRef GroupRef) {
if (CXXRecordDecl* Record = llvm::dyn_cast<clang::CXXRecordDecl>(
*GroupRef.begin())) {
if (Record->getName() == "X") {
*FoundClassDeclX = true;
}
}
}
private:
bool *FoundClassDeclX;
};
} // end namespace
TEST(RunSyntaxOnlyToolOnCode, FindsClassDecl) {
bool FoundClassDeclX = false;
EXPECT_TRUE(RunSyntaxOnlyToolOnCode(new TestAction(
new FindClassDeclXConsumer(&FoundClassDeclX)), "class X;"));
EXPECT_TRUE(FoundClassDeclX);
FoundClassDeclX = false;
EXPECT_TRUE(RunSyntaxOnlyToolOnCode(new TestAction(
new FindClassDeclXConsumer(&FoundClassDeclX)), "class Y;"));
EXPECT_FALSE(FoundClassDeclX);
}
TEST(FindCompileArgsInJsonDatabase, FindsNothingIfEmpty) {
std::string ErrorMessage;
CompileCommand NotFound = FindCompileArgsInJsonDatabase(
"a-file.cpp", "", ErrorMessage);
EXPECT_TRUE(NotFound.CommandLine.empty()) << ErrorMessage;
EXPECT_TRUE(NotFound.Directory.empty()) << ErrorMessage;
}
TEST(FindCompileArgsInJsonDatabase, ReadsSingleEntry) {
llvm::StringRef Directory("/some/directory");
llvm::StringRef FileName("/path/to/a-file.cpp");
llvm::StringRef Command("/path/to/compiler and some arguments");
std::string ErrorMessage;
CompileCommand FoundCommand = FindCompileArgsInJsonDatabase(
FileName,
(llvm::Twine("[{\"directory\":\"") + Directory + "\"," +
"\"command\":\"" + Command + "\","
"\"file\":\"" + FileName + "\"}]").str(), ErrorMessage);
EXPECT_EQ(Directory, FoundCommand.Directory) << ErrorMessage;
ASSERT_EQ(4u, FoundCommand.CommandLine.size()) << ErrorMessage;
EXPECT_EQ("/path/to/compiler", FoundCommand.CommandLine[0]) << ErrorMessage;
EXPECT_EQ("and", FoundCommand.CommandLine[1]) << ErrorMessage;
EXPECT_EQ("some", FoundCommand.CommandLine[2]) << ErrorMessage;
EXPECT_EQ("arguments", FoundCommand.CommandLine[3]) << ErrorMessage;
CompileCommand NotFound = FindCompileArgsInJsonDatabase(
"a-file.cpp",
(llvm::Twine("[{\"directory\":\"") + Directory + "\"," +
"\"command\":\"" + Command + "\","
"\"file\":\"" + FileName + "\"}]").str(), ErrorMessage);
EXPECT_TRUE(NotFound.Directory.empty()) << ErrorMessage;
EXPECT_TRUE(NotFound.CommandLine.empty()) << ErrorMessage;
}
TEST(FindCompileArgsInJsonDatabase, ReadsCompileCommandLinesWithSpaces) {
llvm::StringRef Directory("/some/directory");
llvm::StringRef FileName("/path/to/a-file.cpp");
llvm::StringRef Command("\\\"/path to compiler\\\" \\\"and an argument\\\"");
std::string ErrorMessage;
CompileCommand FoundCommand = FindCompileArgsInJsonDatabase(
FileName,
(llvm::Twine("[{\"directory\":\"") + Directory + "\"," +
"\"command\":\"" + Command + "\","
"\"file\":\"" + FileName + "\"}]").str(), ErrorMessage);
ASSERT_EQ(2u, FoundCommand.CommandLine.size());
EXPECT_EQ("/path to compiler", FoundCommand.CommandLine[0]) << ErrorMessage;
EXPECT_EQ("and an argument", FoundCommand.CommandLine[1]) << ErrorMessage;
}
TEST(FindCompileArgsInJsonDatabase, ReadsDirectoryWithSpaces) {
llvm::StringRef Directory("/some directory / with spaces");
llvm::StringRef FileName("/path/to/a-file.cpp");
llvm::StringRef Command("a command");
std::string ErrorMessage;
CompileCommand FoundCommand = FindCompileArgsInJsonDatabase(
FileName,
(llvm::Twine("[{\"directory\":\"") + Directory + "\"," +
"\"command\":\"" + Command + "\","
"\"file\":\"" + FileName + "\"}]").str(), ErrorMessage);
EXPECT_EQ(Directory, FoundCommand.Directory) << ErrorMessage;
}
TEST(FindCompileArgsInJsonDatabase, FindsEntry) {
llvm::StringRef Directory("directory");
llvm::StringRef FileName("file");
llvm::StringRef Command("command");
std::string JsonDatabase = "[";
for (int I = 0; I < 10; ++I) {
if (I > 0) JsonDatabase += ",";
JsonDatabase += (llvm::Twine(
"{\"directory\":\"") + Directory + llvm::Twine(I) + "\"," +
"\"command\":\"" + Command + llvm::Twine(I) + "\","
"\"file\":\"" + FileName + llvm::Twine(I) + "\"}").str();
}
JsonDatabase += "]";
std::string ErrorMessage;
CompileCommand FoundCommand = FindCompileArgsInJsonDatabase(
"file4", JsonDatabase, ErrorMessage);
EXPECT_EQ("directory4", FoundCommand.Directory) << ErrorMessage;
ASSERT_EQ(1u, FoundCommand.CommandLine.size()) << ErrorMessage;
EXPECT_EQ("command4", FoundCommand.CommandLine[0]) << ErrorMessage;
}
} // end namespace tooling
} // end namespace clang
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