forked from OSchip/llvm-project
529 lines
14 KiB
C++
529 lines
14 KiB
C++
//===---- IncludeInserterTest.cpp - clang-tidy ----------------------------===//
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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 "../clang-tidy/utils/IncludeInserter.h"
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#include "clang/Lex/Preprocessor.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "ClangTidyTest.h"
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#include "gtest/gtest.h"
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// FIXME: Canonicalize paths correctly on windows.
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// Currently, adding virtual files will canonicalize the paths before
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// storing the virtual entries.
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// When resolving virtual entries in the FileManager, the paths (for
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// example coming from a #include directive) are not canonicalized
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// to native paths; thus, the virtual file is not found.
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// This needs to be fixed in the FileManager before we can make
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// clang-tidy tests work.
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#if !defined(_WIN32)
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namespace clang {
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namespace tidy {
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namespace {
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class IncludeInserterCheckBase : public ClangTidyCheck {
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public:
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IncludeInserterCheckBase(StringRef CheckName, ClangTidyContext *Context)
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: ClangTidyCheck(CheckName, Context) {}
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void registerPPCallbacks(CompilerInstance &Compiler) override {
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Inserter.reset(new IncludeInserter(Compiler.getSourceManager(),
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Compiler.getLangOpts(),
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IncludeSorter::IS_Google));
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Compiler.getPreprocessor().addPPCallbacks(Inserter->CreatePPCallbacks());
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}
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void registerMatchers(ast_matchers::MatchFinder *Finder) override {
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Finder->addMatcher(ast_matchers::declStmt().bind("stmt"), this);
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}
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void check(const ast_matchers::MatchFinder::MatchResult &Result) override {
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auto Diag = diag(Result.Nodes.getStmtAs<DeclStmt>("stmt")->getLocStart(),
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"foo, bar");
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for (StringRef header : HeadersToInclude()) {
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auto Fixit = Inserter->CreateIncludeInsertion(
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Result.SourceManager->getMainFileID(), header, IsAngledInclude());
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if (Fixit) {
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Diag << *Fixit;
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}
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}
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}
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virtual std::vector<StringRef> HeadersToInclude() const = 0;
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virtual bool IsAngledInclude() const = 0;
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std::unique_ptr<IncludeInserter> Inserter;
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};
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class NonSystemHeaderInserterCheck : public IncludeInserterCheckBase {
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public:
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NonSystemHeaderInserterCheck(StringRef CheckName, ClangTidyContext *Context)
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: IncludeInserterCheckBase(CheckName, Context) {}
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std::vector<StringRef> HeadersToInclude() const override {
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return {"path/to/header.h"};
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}
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bool IsAngledInclude() const override { return false; }
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};
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class MultipleHeaderInserterCheck : public IncludeInserterCheckBase {
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public:
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MultipleHeaderInserterCheck(StringRef CheckName, ClangTidyContext *Context)
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: IncludeInserterCheckBase(CheckName, Context) {}
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std::vector<StringRef> HeadersToInclude() const override {
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return {"path/to/header.h", "path/to/header2.h", "path/to/header.h"};
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}
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bool IsAngledInclude() const override { return false; }
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};
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class CSystemIncludeInserterCheck : public IncludeInserterCheckBase {
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public:
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CSystemIncludeInserterCheck(StringRef CheckName, ClangTidyContext *Context)
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: IncludeInserterCheckBase(CheckName, Context) {}
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std::vector<StringRef> HeadersToInclude() const override {
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return {"stdlib.h"};
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}
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bool IsAngledInclude() const override { return true; }
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};
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class CXXSystemIncludeInserterCheck : public IncludeInserterCheckBase {
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public:
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CXXSystemIncludeInserterCheck(StringRef CheckName, ClangTidyContext *Context)
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: IncludeInserterCheckBase(CheckName, Context) {}
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std::vector<StringRef> HeadersToInclude() const override { return {"set"}; }
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bool IsAngledInclude() const override { return true; }
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};
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template <typename Check>
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std::string runCheckOnCode(StringRef Code, StringRef Filename) {
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std::vector<ClangTidyError> Errors;
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return test::runCheckOnCode<Check>(Code, &Errors, Filename, None,
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ClangTidyOptions(),
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{// Main file include
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{"clang_tidy/tests/"
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"insert_includes_test_header.h",
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"\n"},
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// Non system headers
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{"path/to/a/header.h", "\n"},
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{"path/to/z/header.h", "\n"},
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{"path/to/header.h", "\n"},
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{"path/to/header2.h", "\n"},
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// Fake system headers.
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{"stdlib.h", "\n"},
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{"unistd.h", "\n"},
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{"list", "\n"},
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{"map", "\n"},
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{"set", "\n"},
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{"vector", "\n"}});
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}
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TEST(IncludeInserterTest, InsertAfterLastNonSystemInclude) {
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const char *PreCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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#include "path/to/a/header.h"
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#include "path/to/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<NonSystemHeaderInserterCheck>(
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PreCode, "clang_tidy/tests/"
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"insert_includes_test_input2.cc"));
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}
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TEST(IncludeInserterTest, InsertMultipleIncludesAndDeduplicate) {
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const char *PreCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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#include "path/to/a/header.h"
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#include "path/to/header.h"
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#include "path/to/header2.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<MultipleHeaderInserterCheck>(
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PreCode, "clang_tidy/tests/"
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"insert_includes_test_input2.cc"));
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}
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TEST(IncludeInserterTest, InsertBeforeFirstNonSystemInclude) {
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const char *PreCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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#include "path/to/z/header.h"
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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#include "path/to/header.h"
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#include "path/to/z/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<NonSystemHeaderInserterCheck>(
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PreCode, "clang_tidy/tests/"
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"insert_includes_test_input2.cc"));
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}
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TEST(IncludeInserterTest, InsertBetweenNonSystemIncludes) {
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const char *PreCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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#include "path/to/a/header.h"
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#include "path/to/z/header.h"
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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#include "path/to/a/header.h"
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#include "path/to/header.h"
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#include "path/to/z/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<NonSystemHeaderInserterCheck>(
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PreCode, "clang_tidy/tests/"
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"insert_includes_test_input2.cc"));
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}
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TEST(IncludeInserterTest, NonSystemIncludeAlreadyIncluded) {
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const char *PreCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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#include "path/to/a/header.h"
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#include "path/to/header.h"
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#include "path/to/z/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PreCode, runCheckOnCode<NonSystemHeaderInserterCheck>(
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PreCode, "clang_tidy/tests/"
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"insert_includes_test_input2.cc"));
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}
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TEST(IncludeInserterTest, InsertNonSystemIncludeAfterLastCXXSystemInclude) {
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const char *PreCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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#include "path/to/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<NonSystemHeaderInserterCheck>(
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PreCode, "clang_tidy/tests/"
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"insert_includes_test_header.cc"));
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}
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TEST(IncludeInserterTest, InsertNonSystemIncludeAfterMainFileInclude) {
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const char *PreCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include "path/to/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<NonSystemHeaderInserterCheck>(
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PreCode, "clang_tidy/tests/"
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"insert_includes_test_header.cc"));
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}
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TEST(IncludeInserterTest, InsertCXXSystemIncludeAfterLastCXXSystemInclude) {
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const char *PreCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <list>
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#include <map>
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#include <set>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<CXXSystemIncludeInserterCheck>(
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PreCode, "clang_tidy/tests/"
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"insert_includes_test_header.cc"));
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}
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TEST(IncludeInserterTest, InsertCXXSystemIncludeBeforeFirstCXXSystemInclude) {
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const char *PreCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <vector>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <set>
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#include <vector>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<CXXSystemIncludeInserterCheck>(
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PreCode, "clang_tidy/tests/"
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"insert_includes_test_header.cc"));
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}
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TEST(IncludeInserterTest, InsertCXXSystemIncludeBetweenCXXSystemIncludes) {
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const char *PreCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <map>
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#include <vector>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <map>
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#include <set>
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#include <vector>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<CXXSystemIncludeInserterCheck>(
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PreCode, "clang_tidy/tests/"
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"insert_includes_test_header.cc"));
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}
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TEST(IncludeInserterTest, InsertCXXSystemIncludeAfterMainFileInclude) {
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const char *PreCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <set>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<CXXSystemIncludeInserterCheck>(
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PreCode, "clang_tidy/tests/"
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"insert_includes_test_header.cc"));
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}
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TEST(IncludeInserterTest, InsertCXXSystemIncludeAfterCSystemInclude) {
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const char *PreCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <stdlib.h>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include "clang_tidy/tests/insert_includes_test_header.h"
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#include <stdlib.h>
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#include <set>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<CXXSystemIncludeInserterCheck>(
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PreCode, "clang_tidy/tests/"
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"insert_includes_test_header.cc"));
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}
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TEST(IncludeInserterTest, InsertCXXSystemIncludeBeforeNonSystemInclude) {
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const char *PreCode = R"(
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include <set>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<CXXSystemIncludeInserterCheck>(
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PreCode, "devtools/cymbal/clang_tidy/tests/"
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"insert_includes_test_header.cc"));
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}
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TEST(IncludeInserterTest, InsertCSystemIncludeBeforeCXXSystemInclude) {
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const char *PreCode = R"(
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#include <set>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(
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#include <stdlib.h>
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#include <set>
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#include "path/to/a/header.h"
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<CSystemIncludeInserterCheck>(
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PreCode, "devtools/cymbal/clang_tidy/tests/"
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"insert_includes_test_header.cc"));
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}
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TEST(IncludeInserterTest, InsertIncludeIfThereWasNoneBefore) {
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const char *PreCode = R"(
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void foo() {
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int a = 0;
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})";
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const char *PostCode = R"(#include <set>
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void foo() {
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int a = 0;
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})";
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EXPECT_EQ(PostCode, runCheckOnCode<CXXSystemIncludeInserterCheck>(
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PreCode, "devtools/cymbal/clang_tidy/tests/"
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"insert_includes_test_header.cc"));
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}
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} // anonymous namespace
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} // namespace tidy
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} // namespace clang
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#endif
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