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