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//===-- IncludeFixerTest.cpp - Include fixer unit tests -------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "InMemoryXrefsDB.h"
#include "IncludeFixer.h"
#include "unittests/Tooling/RewriterTestContext.h"
#include "clang/Tooling/Tooling.h"
#include "gtest/gtest.h"
using namespace clang;
namespace clang {
namespace include_fixer {
namespace {
static bool runOnCode(tooling::ToolAction *ToolAction, StringRef Code,
StringRef FileName,
const std::vector<std::string> &ExtraArgs) {
llvm::IntrusiveRefCntPtr<vfs::InMemoryFileSystem> InMemoryFileSystem(
new vfs::InMemoryFileSystem);
llvm::IntrusiveRefCntPtr<FileManager> Files(
new FileManager(FileSystemOptions(), InMemoryFileSystem));
std::vector<std::string> Args = {"include_fixer", "-fsyntax-only", FileName};
Args.insert(Args.end(), ExtraArgs.begin(), ExtraArgs.end());
tooling::ToolInvocation Invocation(
Args, ToolAction, Files.get(),
std::make_shared<PCHContainerOperations>());
InMemoryFileSystem->addFile(FileName, 0,
llvm::MemoryBuffer::getMemBuffer(Code));
InMemoryFileSystem->addFile("foo.h", 0,
llvm::MemoryBuffer::getMemBuffer("\n"));
InMemoryFileSystem->addFile("dir/bar.h", 0,
llvm::MemoryBuffer::getMemBuffer("\n"));
InMemoryFileSystem->addFile("dir/otherdir/qux.h", 0,
llvm::MemoryBuffer::getMemBuffer("\n"));
return Invocation.run();
}
static std::string runIncludeFixer(
StringRef Code,
const std::vector<std::string> &ExtraArgs = std::vector<std::string>()) {
std::map<std::string, std::vector<std::string>> XrefsMap = {
{"std::string", {"<string>"}},
{"std::string::size_type", {"<string>"}},
{"a::b::foo", {"dir/otherdir/qux.h"}},
};
auto XrefsDB =
llvm::make_unique<include_fixer::InMemoryXrefsDB>(std::move(XrefsMap));
std::vector<clang::tooling::Replacement> Replacements;
IncludeFixerActionFactory Factory(*XrefsDB, Replacements);
runOnCode(&Factory, Code, "input.cc", ExtraArgs);
clang::RewriterTestContext Context;
clang::FileID ID = Context.createInMemoryFile("input.cc", Code);
clang::tooling::applyAllReplacements(Replacements, Context.Rewrite);
return Context.getRewrittenText(ID);
}
TEST(IncludeFixer, Typo) {
EXPECT_EQ("#include <string>\nstd::string foo;\n",
runIncludeFixer("std::string foo;\n"));
EXPECT_EQ(
"// comment\n#include <string>\n#include \"foo.h\"\nstd::string foo;\n"
"#include \"dir/bar.h\"\n",
runIncludeFixer("// comment\n#include \"foo.h\"\nstd::string foo;\n"
"#include \"dir/bar.h\"\n"));
EXPECT_EQ("#include <string>\n#include \"foo.h\"\nstd::string foo;\n",
runIncludeFixer("#include \"foo.h\"\nstd::string foo;\n"));
EXPECT_EQ(
"#include <string>\n#include \"foo.h\"\nstd::string::size_type foo;\n",
runIncludeFixer("#include \"foo.h\"\nstd::string::size_type foo;\n"));
// The fixed xrefs db doesn't know how to handle string without std::.
EXPECT_EQ("string foo;\n", runIncludeFixer("string foo;\n"));
}
TEST(IncludeFixer, IncompleteType) {
EXPECT_EQ(
"#include <string>\n#include \"foo.h\"\n"
"namespace std {\nclass string;\n}\nstring foo;\n",
runIncludeFixer("#include \"foo.h\"\n"
"namespace std {\nclass string;\n}\nstring foo;\n"));
}
TEST(IncludeFixer, MinimizeInclude) {
std::vector<std::string> IncludePath = {"-Idir/"};
EXPECT_EQ("#include \"otherdir/qux.h\"\na::b::foo bar;\n",
runIncludeFixer("a::b::foo bar;\n", IncludePath));
IncludePath = {"-isystemdir"};
EXPECT_EQ("#include <otherdir/qux.h>\na::b::foo bar;\n",
runIncludeFixer("a::b::foo bar;\n", IncludePath));
IncludePath = {"-iquotedir"};
EXPECT_EQ("#include \"otherdir/qux.h\"\na::b::foo bar;\n",
runIncludeFixer("a::b::foo bar;\n", IncludePath));
IncludePath = {"-Idir", "-Idir/otherdir"};
EXPECT_EQ("#include \"qux.h\"\na::b::foo bar;\n",
runIncludeFixer("a::b::foo bar;\n", IncludePath));
}
} // namespace
} // namespace include_fixer
} // namespace clang
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