| //===- unittest/Tooling/RefactoringTest.cpp - Refactoring unit tests ------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "RewriterTestContext.h" |
| #include "clang/AST/ASTConsumer.h" |
| #include "clang/AST/ASTContext.h" |
| #include "clang/AST/DeclCXX.h" |
| #include "clang/AST/DeclGroup.h" |
| #include "clang/AST/RecursiveASTVisitor.h" |
| #include "clang/Basic/Diagnostic.h" |
| #include "clang/Basic/DiagnosticOptions.h" |
| #include "clang/Basic/FileManager.h" |
| #include "clang/Basic/LangOptions.h" |
| #include "clang/Basic/SourceManager.h" |
| #include "clang/Frontend/CompilerInstance.h" |
| #include "clang/Frontend/FrontendAction.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/SmallString.h" |
| #include "llvm/Support/Path.h" |
| #include "gtest/gtest.h" |
| |
| namespace clang { |
| namespace tooling { |
| |
| class ReplacementTest : public ::testing::Test { |
| protected: |
| Replacement createReplacement(SourceLocation Start, unsigned Length, |
| llvm::StringRef ReplacementText) { |
| return Replacement(Context.Sources, Start, Length, ReplacementText); |
| } |
| |
| RewriterTestContext Context; |
| }; |
| |
| TEST_F(ReplacementTest, CanDeleteAllText) { |
| FileID ID = Context.createInMemoryFile("input.cpp", "text"); |
| SourceLocation Location = Context.getLocation(ID, 1, 1); |
| Replacement Replace(createReplacement(Location, 4, "")); |
| EXPECT_TRUE(Replace.apply(Context.Rewrite)); |
| EXPECT_EQ("", Context.getRewrittenText(ID)); |
| } |
| |
| TEST_F(ReplacementTest, CanDeleteAllTextInTextWithNewlines) { |
| FileID ID = Context.createInMemoryFile("input.cpp", "line1\nline2\nline3"); |
| SourceLocation Location = Context.getLocation(ID, 1, 1); |
| Replacement Replace(createReplacement(Location, 17, "")); |
| EXPECT_TRUE(Replace.apply(Context.Rewrite)); |
| EXPECT_EQ("", Context.getRewrittenText(ID)); |
| } |
| |
| TEST_F(ReplacementTest, CanAddText) { |
| FileID ID = Context.createInMemoryFile("input.cpp", ""); |
| SourceLocation Location = Context.getLocation(ID, 1, 1); |
| Replacement Replace(createReplacement(Location, 0, "result")); |
| EXPECT_TRUE(Replace.apply(Context.Rewrite)); |
| EXPECT_EQ("result", Context.getRewrittenText(ID)); |
| } |
| |
| TEST_F(ReplacementTest, CanReplaceTextAtPosition) { |
| FileID ID = Context.createInMemoryFile("input.cpp", |
| "line1\nline2\nline3\nline4"); |
| SourceLocation Location = Context.getLocation(ID, 2, 3); |
| Replacement Replace(createReplacement(Location, 12, "x")); |
| EXPECT_TRUE(Replace.apply(Context.Rewrite)); |
| EXPECT_EQ("line1\nlixne4", Context.getRewrittenText(ID)); |
| } |
| |
| TEST_F(ReplacementTest, CanReplaceTextAtPositionMultipleTimes) { |
| FileID ID = Context.createInMemoryFile("input.cpp", |
| "line1\nline2\nline3\nline4"); |
| SourceLocation Location1 = Context.getLocation(ID, 2, 3); |
| Replacement Replace1(createReplacement(Location1, 12, "x\ny\n")); |
| EXPECT_TRUE(Replace1.apply(Context.Rewrite)); |
| EXPECT_EQ("line1\nlix\ny\nne4", Context.getRewrittenText(ID)); |
| |
| // Since the original source has not been modified, the (4, 4) points to the |
| // 'e' in the original content. |
| SourceLocation Location2 = Context.getLocation(ID, 4, 4); |
| Replacement Replace2(createReplacement(Location2, 1, "f")); |
| EXPECT_TRUE(Replace2.apply(Context.Rewrite)); |
| EXPECT_EQ("line1\nlix\ny\nnf4", Context.getRewrittenText(ID)); |
| } |
| |
| TEST_F(ReplacementTest, ApplyFailsForNonExistentLocation) { |
| Replacement Replace("nonexistent-file.cpp", 0, 1, ""); |
| EXPECT_FALSE(Replace.apply(Context.Rewrite)); |
| } |
| |
| TEST_F(ReplacementTest, CanRetrivePath) { |
| Replacement Replace("/path/to/file.cpp", 0, 1, ""); |
| EXPECT_EQ("/path/to/file.cpp", Replace.getFilePath()); |
| } |
| |
| TEST_F(ReplacementTest, ReturnsInvalidPath) { |
| Replacement Replace1(Context.Sources, SourceLocation(), 0, ""); |
| EXPECT_TRUE(Replace1.getFilePath().empty()); |
| |
| Replacement Replace2; |
| EXPECT_TRUE(Replace2.getFilePath().empty()); |
| } |
| |
| TEST_F(ReplacementTest, CanApplyReplacements) { |
| FileID ID = Context.createInMemoryFile("input.cpp", |
| "line1\nline2\nline3\nline4"); |
| Replacements Replaces; |
| Replaces.insert(Replacement(Context.Sources, Context.getLocation(ID, 2, 1), |
| 5, "replaced")); |
| Replaces.insert(Replacement(Context.Sources, Context.getLocation(ID, 3, 1), |
| 5, "other")); |
| EXPECT_TRUE(applyAllReplacements(Replaces, Context.Rewrite)); |
| EXPECT_EQ("line1\nreplaced\nother\nline4", Context.getRewrittenText(ID)); |
| } |
| |
| // FIXME: Remove this test case when Replacements is implemented as std::vector |
| // instead of std::set. The other ReplacementTest tests will need to be updated |
| // at that point as well. |
| TEST_F(ReplacementTest, VectorCanApplyReplacements) { |
| FileID ID = Context.createInMemoryFile("input.cpp", |
| "line1\nline2\nline3\nline4"); |
| std::vector<Replacement> Replaces; |
| Replaces.push_back(Replacement(Context.Sources, Context.getLocation(ID, 2, 1), |
| 5, "replaced")); |
| Replaces.push_back( |
| Replacement(Context.Sources, Context.getLocation(ID, 3, 1), 5, "other")); |
| EXPECT_TRUE(applyAllReplacements(Replaces, Context.Rewrite)); |
| EXPECT_EQ("line1\nreplaced\nother\nline4", Context.getRewrittenText(ID)); |
| } |
| |
| TEST_F(ReplacementTest, SkipsDuplicateReplacements) { |
| FileID ID = Context.createInMemoryFile("input.cpp", |
| "line1\nline2\nline3\nline4"); |
| Replacements Replaces; |
| Replaces.insert(Replacement(Context.Sources, Context.getLocation(ID, 2, 1), |
| 5, "replaced")); |
| Replaces.insert(Replacement(Context.Sources, Context.getLocation(ID, 2, 1), |
| 5, "replaced")); |
| Replaces.insert(Replacement(Context.Sources, Context.getLocation(ID, 2, 1), |
| 5, "replaced")); |
| EXPECT_TRUE(applyAllReplacements(Replaces, Context.Rewrite)); |
| EXPECT_EQ("line1\nreplaced\nline3\nline4", Context.getRewrittenText(ID)); |
| } |
| |
| TEST_F(ReplacementTest, ApplyAllFailsIfOneApplyFails) { |
| // This test depends on the value of the file name of an invalid source |
| // location being in the range ]a, z[. |
| FileID IDa = Context.createInMemoryFile("a.cpp", "text"); |
| FileID IDz = Context.createInMemoryFile("z.cpp", "text"); |
| Replacements Replaces; |
| Replaces.insert(Replacement(Context.Sources, Context.getLocation(IDa, 1, 1), |
| 4, "a")); |
| Replaces.insert(Replacement(Context.Sources, SourceLocation(), |
| 5, "2")); |
| Replaces.insert(Replacement(Context.Sources, Context.getLocation(IDz, 1, 1), |
| 4, "z")); |
| EXPECT_FALSE(applyAllReplacements(Replaces, Context.Rewrite)); |
| EXPECT_EQ("a", Context.getRewrittenText(IDa)); |
| EXPECT_EQ("z", Context.getRewrittenText(IDz)); |
| } |
| |
| TEST(ShiftedCodePositionTest, FindsNewCodePosition) { |
| Replacements Replaces; |
| Replaces.insert(Replacement("", 0, 1, "")); |
| Replaces.insert(Replacement("", 4, 3, " ")); |
| // Assume ' int i;' is turned into 'int i;' and cursor is located at '|'. |
| EXPECT_EQ(0u, shiftedCodePosition(Replaces, 0)); // |int i; |
| EXPECT_EQ(0u, shiftedCodePosition(Replaces, 1)); // |nt i; |
| EXPECT_EQ(1u, shiftedCodePosition(Replaces, 2)); // i|t i; |
| EXPECT_EQ(2u, shiftedCodePosition(Replaces, 3)); // in| i; |
| EXPECT_EQ(3u, shiftedCodePosition(Replaces, 4)); // int| i; |
| EXPECT_EQ(4u, shiftedCodePosition(Replaces, 5)); // int | i; |
| EXPECT_EQ(4u, shiftedCodePosition(Replaces, 6)); // int |i; |
| EXPECT_EQ(4u, shiftedCodePosition(Replaces, 7)); // int |; |
| EXPECT_EQ(5u, shiftedCodePosition(Replaces, 8)); // int i| |
| } |
| |
| // FIXME: Remove this test case when Replacements is implemented as std::vector |
| // instead of std::set. The other ReplacementTest tests will need to be updated |
| // at that point as well. |
| TEST(ShiftedCodePositionTest, VectorFindsNewCodePositionWithInserts) { |
| std::vector<Replacement> Replaces; |
| Replaces.push_back(Replacement("", 0, 1, "")); |
| Replaces.push_back(Replacement("", 4, 3, " ")); |
| // Assume ' int i;' is turned into 'int i;' and cursor is located at '|'. |
| EXPECT_EQ(0u, shiftedCodePosition(Replaces, 0)); // |int i; |
| EXPECT_EQ(0u, shiftedCodePosition(Replaces, 1)); // |nt i; |
| EXPECT_EQ(1u, shiftedCodePosition(Replaces, 2)); // i|t i; |
| EXPECT_EQ(2u, shiftedCodePosition(Replaces, 3)); // in| i; |
| EXPECT_EQ(3u, shiftedCodePosition(Replaces, 4)); // int| i; |
| EXPECT_EQ(4u, shiftedCodePosition(Replaces, 5)); // int | i; |
| EXPECT_EQ(4u, shiftedCodePosition(Replaces, 6)); // int |i; |
| EXPECT_EQ(4u, shiftedCodePosition(Replaces, 7)); // int |; |
| EXPECT_EQ(5u, shiftedCodePosition(Replaces, 8)); // int i| |
| } |
| |
| TEST(ShiftedCodePositionTest, FindsNewCodePositionWithInserts) { |
| Replacements Replaces; |
| Replaces.insert(Replacement("", 4, 0, "\"\n\"")); |
| // Assume '"12345678"' is turned into '"1234"\n"5678"'. |
| EXPECT_EQ(4u, shiftedCodePosition(Replaces, 4)); // "123|5678" |
| EXPECT_EQ(8u, shiftedCodePosition(Replaces, 5)); // "1234|678" |
| } |
| |
| class FlushRewrittenFilesTest : public ::testing::Test { |
| public: |
| FlushRewrittenFilesTest() {} |
| |
| ~FlushRewrittenFilesTest() override { |
| for (llvm::StringMap<std::string>::iterator I = TemporaryFiles.begin(), |
| E = TemporaryFiles.end(); |
| I != E; ++I) { |
| llvm::StringRef Name = I->second; |
| std::error_code EC = llvm::sys::fs::remove(Name); |
| (void)EC; |
| assert(!EC); |
| } |
| } |
| |
| FileID createFile(llvm::StringRef Name, llvm::StringRef Content) { |
| SmallString<1024> Path; |
| int FD; |
| std::error_code EC = llvm::sys::fs::createTemporaryFile(Name, "", FD, Path); |
| assert(!EC); |
| (void)EC; |
| |
| llvm::raw_fd_ostream OutStream(FD, true); |
| OutStream << Content; |
| OutStream.close(); |
| const FileEntry *File = Context.Files.getFile(Path); |
| assert(File != nullptr); |
| |
| StringRef Found = |
| TemporaryFiles.insert(std::make_pair(Name, Path.str())).first->second; |
| assert(Found == Path); |
| (void)Found; |
| return Context.Sources.createFileID(File, SourceLocation(), SrcMgr::C_User); |
| } |
| |
| std::string getFileContentFromDisk(llvm::StringRef Name) { |
| std::string Path = TemporaryFiles.lookup(Name); |
| assert(!Path.empty()); |
| // We need to read directly from the FileManager without relaying through |
| // a FileEntry, as otherwise we'd read through an already opened file |
| // descriptor, which might not see the changes made. |
| // FIXME: Figure out whether there is a way to get the SourceManger to |
| // reopen the file. |
| auto FileBuffer = Context.Files.getBufferForFile(Path); |
| return (*FileBuffer)->getBuffer(); |
| } |
| |
| llvm::StringMap<std::string> TemporaryFiles; |
| RewriterTestContext Context; |
| }; |
| |
| TEST_F(FlushRewrittenFilesTest, StoresChangesOnDisk) { |
| FileID ID = createFile("input.cpp", "line1\nline2\nline3\nline4"); |
| Replacements Replaces; |
| Replaces.insert(Replacement(Context.Sources, Context.getLocation(ID, 2, 1), |
| 5, "replaced")); |
| EXPECT_TRUE(applyAllReplacements(Replaces, Context.Rewrite)); |
| EXPECT_FALSE(Context.Rewrite.overwriteChangedFiles()); |
| EXPECT_EQ("line1\nreplaced\nline3\nline4", |
| getFileContentFromDisk("input.cpp")); |
| } |
| |
| namespace { |
| template <typename T> |
| class TestVisitor : public clang::RecursiveASTVisitor<T> { |
| public: |
| bool runOver(StringRef Code) { |
| return runToolOnCode(new TestAction(this), Code); |
| } |
| |
| protected: |
| clang::SourceManager *SM; |
| clang::ASTContext *Context; |
| |
| private: |
| class FindConsumer : public clang::ASTConsumer { |
| public: |
| FindConsumer(TestVisitor *Visitor) : Visitor(Visitor) {} |
| |
| void HandleTranslationUnit(clang::ASTContext &Context) override { |
| Visitor->TraverseDecl(Context.getTranslationUnitDecl()); |
| } |
| |
| private: |
| TestVisitor *Visitor; |
| }; |
| |
| class TestAction : public clang::ASTFrontendAction { |
| public: |
| TestAction(TestVisitor *Visitor) : Visitor(Visitor) {} |
| |
| std::unique_ptr<clang::ASTConsumer> |
| CreateASTConsumer(clang::CompilerInstance &compiler, |
| llvm::StringRef dummy) override { |
| Visitor->SM = &compiler.getSourceManager(); |
| Visitor->Context = &compiler.getASTContext(); |
| /// TestConsumer will be deleted by the framework calling us. |
| return llvm::make_unique<FindConsumer>(Visitor); |
| } |
| |
| private: |
| TestVisitor *Visitor; |
| }; |
| }; |
| } // end namespace |
| |
| void expectReplacementAt(const Replacement &Replace, |
| StringRef File, unsigned Offset, unsigned Length) { |
| ASSERT_TRUE(Replace.isApplicable()); |
| EXPECT_EQ(File, Replace.getFilePath()); |
| EXPECT_EQ(Offset, Replace.getOffset()); |
| EXPECT_EQ(Length, Replace.getLength()); |
| } |
| |
| class ClassDeclXVisitor : public TestVisitor<ClassDeclXVisitor> { |
| public: |
| bool VisitCXXRecordDecl(CXXRecordDecl *Record) { |
| if (Record->getName() == "X") { |
| Replace = Replacement(*SM, Record, ""); |
| } |
| return true; |
| } |
| Replacement Replace; |
| }; |
| |
| TEST(Replacement, CanBeConstructedFromNode) { |
| ClassDeclXVisitor ClassDeclX; |
| EXPECT_TRUE(ClassDeclX.runOver(" class X;")); |
| expectReplacementAt(ClassDeclX.Replace, "input.cc", 5, 7); |
| } |
| |
| TEST(Replacement, ReplacesAtSpellingLocation) { |
| ClassDeclXVisitor ClassDeclX; |
| EXPECT_TRUE(ClassDeclX.runOver("#define A(Y) Y\nA(class X);")); |
| expectReplacementAt(ClassDeclX.Replace, "input.cc", 17, 7); |
| } |
| |
| class CallToFVisitor : public TestVisitor<CallToFVisitor> { |
| public: |
| bool VisitCallExpr(CallExpr *Call) { |
| if (Call->getDirectCallee()->getName() == "F") { |
| Replace = Replacement(*SM, Call, ""); |
| } |
| return true; |
| } |
| Replacement Replace; |
| }; |
| |
| TEST(Replacement, FunctionCall) { |
| CallToFVisitor CallToF; |
| EXPECT_TRUE(CallToF.runOver("void F(); void G() { F(); }")); |
| expectReplacementAt(CallToF.Replace, "input.cc", 21, 3); |
| } |
| |
| TEST(Replacement, TemplatedFunctionCall) { |
| CallToFVisitor CallToF; |
| EXPECT_TRUE(CallToF.runOver( |
| "template <typename T> void F(); void G() { F<int>(); }")); |
| expectReplacementAt(CallToF.Replace, "input.cc", 43, 8); |
| } |
| |
| class NestedNameSpecifierAVisitor |
| : public TestVisitor<NestedNameSpecifierAVisitor> { |
| public: |
| bool TraverseNestedNameSpecifierLoc(NestedNameSpecifierLoc NNSLoc) { |
| if (NNSLoc.getNestedNameSpecifier()) { |
| if (const NamespaceDecl* NS = NNSLoc.getNestedNameSpecifier()->getAsNamespace()) { |
| if (NS->getName() == "a") { |
| Replace = Replacement(*SM, &NNSLoc, "", Context->getLangOpts()); |
| } |
| } |
| } |
| return TestVisitor<NestedNameSpecifierAVisitor>::TraverseNestedNameSpecifierLoc( |
| NNSLoc); |
| } |
| Replacement Replace; |
| }; |
| |
| TEST(Replacement, ColonColon) { |
| NestedNameSpecifierAVisitor VisitNNSA; |
| EXPECT_TRUE(VisitNNSA.runOver("namespace a { void f() { ::a::f(); } }")); |
| expectReplacementAt(VisitNNSA.Replace, "input.cc", 25, 5); |
| } |
| |
| TEST(Range, overlaps) { |
| EXPECT_TRUE(Range(10, 10).overlapsWith(Range(0, 11))); |
| EXPECT_TRUE(Range(0, 11).overlapsWith(Range(10, 10))); |
| EXPECT_FALSE(Range(10, 10).overlapsWith(Range(0, 10))); |
| EXPECT_FALSE(Range(0, 10).overlapsWith(Range(10, 10))); |
| EXPECT_TRUE(Range(0, 10).overlapsWith(Range(2, 6))); |
| EXPECT_TRUE(Range(2, 6).overlapsWith(Range(0, 10))); |
| } |
| |
| TEST(Range, contains) { |
| EXPECT_TRUE(Range(0, 10).contains(Range(0, 10))); |
| EXPECT_TRUE(Range(0, 10).contains(Range(2, 6))); |
| EXPECT_FALSE(Range(2, 6).contains(Range(0, 10))); |
| EXPECT_FALSE(Range(0, 10).contains(Range(0, 11))); |
| } |
| |
| TEST(DeduplicateTest, removesDuplicates) { |
| std::vector<Replacement> Input; |
| Input.push_back(Replacement("fileA", 50, 0, " foo ")); |
| Input.push_back(Replacement("fileA", 10, 3, " bar ")); |
| Input.push_back(Replacement("fileA", 10, 2, " bar ")); // Length differs |
| Input.push_back(Replacement("fileA", 9, 3, " bar ")); // Offset differs |
| Input.push_back(Replacement("fileA", 50, 0, " foo ")); // Duplicate |
| Input.push_back(Replacement("fileA", 51, 3, " bar ")); |
| Input.push_back(Replacement("fileB", 51, 3, " bar ")); // Filename differs! |
| Input.push_back(Replacement("fileB", 60, 1, " bar ")); |
| Input.push_back(Replacement("fileA", 60, 2, " bar ")); |
| Input.push_back(Replacement("fileA", 51, 3, " moo ")); // Replacement text |
| // differs! |
| |
| std::vector<Replacement> Expected; |
| Expected.push_back(Replacement("fileA", 9, 3, " bar ")); |
| Expected.push_back(Replacement("fileA", 10, 2, " bar ")); |
| Expected.push_back(Replacement("fileA", 10, 3, " bar ")); |
| Expected.push_back(Replacement("fileA", 50, 0, " foo ")); |
| Expected.push_back(Replacement("fileA", 51, 3, " bar ")); |
| Expected.push_back(Replacement("fileA", 51, 3, " moo ")); |
| Expected.push_back(Replacement("fileB", 60, 1, " bar ")); |
| Expected.push_back(Replacement("fileA", 60, 2, " bar ")); |
| |
| std::vector<Range> Conflicts; // Ignored for this test |
| deduplicate(Input, Conflicts); |
| |
| EXPECT_EQ(3U, Conflicts.size()); |
| EXPECT_EQ(Expected, Input); |
| } |
| |
| TEST(DeduplicateTest, detectsConflicts) { |
| { |
| std::vector<Replacement> Input; |
| Input.push_back(Replacement("fileA", 0, 5, " foo ")); |
| Input.push_back(Replacement("fileA", 0, 5, " foo ")); // Duplicate not a |
| // conflict. |
| Input.push_back(Replacement("fileA", 2, 6, " bar ")); |
| Input.push_back(Replacement("fileA", 7, 3, " moo ")); |
| |
| std::vector<Range> Conflicts; |
| deduplicate(Input, Conflicts); |
| |
| // One duplicate is removed and the remaining three items form one |
| // conflicted range. |
| ASSERT_EQ(3u, Input.size()); |
| ASSERT_EQ(1u, Conflicts.size()); |
| ASSERT_EQ(0u, Conflicts.front().getOffset()); |
| ASSERT_EQ(3u, Conflicts.front().getLength()); |
| } |
| { |
| std::vector<Replacement> Input; |
| |
| // Expected sorted order is shown. It is the sorted order to which the |
| // returned conflict info refers to. |
| Input.push_back(Replacement("fileA", 0, 5, " foo ")); // 0 |
| Input.push_back(Replacement("fileA", 5, 5, " bar ")); // 1 |
| Input.push_back(Replacement("fileA", 6, 0, " bar ")); // 3 |
| Input.push_back(Replacement("fileA", 5, 5, " moo ")); // 2 |
| Input.push_back(Replacement("fileA", 7, 2, " bar ")); // 4 |
| Input.push_back(Replacement("fileA", 15, 5, " golf ")); // 5 |
| Input.push_back(Replacement("fileA", 16, 5, " bag ")); // 6 |
| Input.push_back(Replacement("fileA", 10, 3, " club ")); // 7 |
| |
| // #3 is special in that it is completely contained by another conflicting |
| // Replacement. #4 ensures #3 hasn't messed up the conflicting range size. |
| |
| std::vector<Range> Conflicts; |
| deduplicate(Input, Conflicts); |
| |
| // No duplicates |
| ASSERT_EQ(8u, Input.size()); |
| ASSERT_EQ(2u, Conflicts.size()); |
| ASSERT_EQ(1u, Conflicts[0].getOffset()); |
| ASSERT_EQ(4u, Conflicts[0].getLength()); |
| ASSERT_EQ(6u, Conflicts[1].getOffset()); |
| ASSERT_EQ(2u, Conflicts[1].getLength()); |
| } |
| } |
| |
| class MergeReplacementsTest : public ::testing::Test { |
| protected: |
| void mergeAndTestRewrite(StringRef Code, StringRef Intermediate, |
| StringRef Result, const Replacements &First, |
| const Replacements &Second) { |
| // These are mainly to verify the test itself and make it easier to read. |
| std::string AfterFirst = applyAllReplacements(Code, First); |
| std::string InSequenceRewrite = applyAllReplacements(AfterFirst, Second); |
| EXPECT_EQ(Intermediate, AfterFirst); |
| EXPECT_EQ(Result, InSequenceRewrite); |
| |
| tooling::Replacements Merged = mergeReplacements(First, Second); |
| std::string MergedRewrite = applyAllReplacements(Code, Merged); |
| EXPECT_EQ(InSequenceRewrite, MergedRewrite); |
| if (InSequenceRewrite != MergedRewrite) |
| for (tooling::Replacement M : Merged) |
| llvm::errs() << M.getOffset() << " " << M.getLength() << " " |
| << M.getReplacementText() << "\n"; |
| } |
| void mergeAndTestRewrite(StringRef Code, const Replacements &First, |
| const Replacements &Second) { |
| std::string InSequenceRewrite = |
| applyAllReplacements(applyAllReplacements(Code, First), Second); |
| tooling::Replacements Merged = mergeReplacements(First, Second); |
| std::string MergedRewrite = applyAllReplacements(Code, Merged); |
| EXPECT_EQ(InSequenceRewrite, MergedRewrite); |
| if (InSequenceRewrite != MergedRewrite) |
| for (tooling::Replacement M : Merged) |
| llvm::errs() << M.getOffset() << " " << M.getLength() << " " |
| << M.getReplacementText() << "\n"; |
| } |
| }; |
| |
| TEST_F(MergeReplacementsTest, Offsets) { |
| mergeAndTestRewrite("aaa", "aabab", "cacabab", |
| {{"", 2, 0, "b"}, {"", 3, 0, "b"}}, |
| {{"", 0, 0, "c"}, {"", 1, 0, "c"}}); |
| mergeAndTestRewrite("aaa", "babaa", "babacac", |
| {{"", 0, 0, "b"}, {"", 1, 0, "b"}}, |
| {{"", 4, 0, "c"}, {"", 5, 0, "c"}}); |
| mergeAndTestRewrite("aaaa", "aaa", "aac", {{"", 1, 1, ""}}, |
| {{"", 2, 1, "c"}}); |
| |
| mergeAndTestRewrite("aa", "bbabba", "bbabcba", |
| {{"", 0, 0, "bb"}, {"", 1, 0, "bb"}}, {{"", 4, 0, "c"}}); |
| } |
| |
| TEST_F(MergeReplacementsTest, Concatenations) { |
| // Basic concatenations. It is important to merge these into a single |
| // replacement to ensure the correct order. |
| EXPECT_EQ((Replacements{{"", 0, 0, "ab"}}), |
| mergeReplacements({{"", 0, 0, "a"}}, {{"", 1, 0, "b"}})); |
| EXPECT_EQ((Replacements{{"", 0, 0, "ba"}}), |
| mergeReplacements({{"", 0, 0, "a"}}, {{"", 0, 0, "b"}})); |
| mergeAndTestRewrite("", "a", "ab", {{"", 0, 0, "a"}}, {{"", 1, 0, "b"}}); |
| mergeAndTestRewrite("", "a", "ba", {{"", 0, 0, "a"}}, {{"", 0, 0, "b"}}); |
| } |
| |
| TEST_F(MergeReplacementsTest, NotChangingLengths) { |
| mergeAndTestRewrite("aaaa", "abba", "acca", {{"", 1, 2, "bb"}}, |
| {{"", 1, 2, "cc"}}); |
| mergeAndTestRewrite("aaaa", "abba", "abcc", {{"", 1, 2, "bb"}}, |
| {{"", 2, 2, "cc"}}); |
| mergeAndTestRewrite("aaaa", "abba", "ccba", {{"", 1, 2, "bb"}}, |
| {{"", 0, 2, "cc"}}); |
| mergeAndTestRewrite("aaaaaa", "abbdda", "abccda", |
| {{"", 1, 2, "bb"}, {"", 3, 2, "dd"}}, {{"", 2, 2, "cc"}}); |
| } |
| |
| TEST_F(MergeReplacementsTest, OverlappingRanges) { |
| mergeAndTestRewrite("aaa", "bbd", "bcbcd", |
| {{"", 0, 1, "bb"}, {"", 1, 2, "d"}}, |
| {{"", 1, 0, "c"}, {"", 2, 0, "c"}}); |
| |
| mergeAndTestRewrite("aaaa", "aabbaa", "acccca", {{"", 2, 0, "bb"}}, |
| {{"", 1, 4, "cccc"}}); |
| mergeAndTestRewrite("aaaa", "aababa", "acccca", |
| {{"", 2, 0, "b"}, {"", 3, 0, "b"}}, {{"", 1, 4, "cccc"}}); |
| mergeAndTestRewrite("aaaaaa", "abbbba", "abba", {{"", 1, 4, "bbbb"}}, |
| {{"", 2, 2, ""}}); |
| mergeAndTestRewrite("aaaa", "aa", "cc", {{"", 1, 1, ""}, {"", 2, 1, ""}}, |
| {{"", 0, 2, "cc"}}); |
| mergeAndTestRewrite("aa", "abbba", "abcbcba", {{"", 1, 0, "bbb"}}, |
| {{"", 2, 0, "c"}, {"", 3, 0, "c"}}); |
| |
| mergeAndTestRewrite("aaa", "abbab", "ccdd", |
| {{"", 0, 1, ""}, {"", 2, 0, "bb"}, {"", 3, 0, "b"}}, |
| {{"", 0, 2, "cc"}, {"", 2, 3, "dd"}}); |
| mergeAndTestRewrite("aa", "babbab", "ccdd", |
| {{"", 0, 0, "b"}, {"", 1, 0, "bb"}, {"", 2, 0, "b"}}, |
| {{"", 0, 3, "cc"}, {"", 3, 3, "dd"}}); |
| } |
| |
| } // end namespace tooling |
| } // end namespace clang |
