| //===- 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 "ReplacementTest.h" |
| #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/Format/Format.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 "gtest/gtest.h" |
| |
| namespace clang { |
| namespace tooling { |
| |
| 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, FailAddReplacements) { |
| Replacements Replaces; |
| auto Err = Replaces.add(Replacement("x.cc", 0, 10, "3")); |
| EXPECT_TRUE(!Err); |
| llvm::consumeError(std::move(Err)); |
| Err = Replaces.add(Replacement("x.cc", 0, 2, "")); |
| EXPECT_TRUE((bool)Err); |
| llvm::consumeError(std::move(Err)); |
| Err = Replaces.add(Replacement("x.cc", 2, 2, "")); |
| EXPECT_TRUE((bool)Err); |
| llvm::consumeError(std::move(Err)); |
| Err = Replaces.add(Replacement("y.cc", 20, 2, "")); |
| EXPECT_TRUE((bool)Err); |
| llvm::consumeError(std::move(Err)); |
| } |
| |
| TEST_F(ReplacementTest, FailAddOverlappingInsertions) { |
| Replacements Replaces; |
| // Test adding an insertion at the offset of an existing replacement. |
| auto Err = Replaces.add(Replacement("x.cc", 10, 3, "replace")); |
| EXPECT_TRUE(!Err); |
| llvm::consumeError(std::move(Err)); |
| Err = Replaces.add(Replacement("x.cc", 10, 0, "insert")); |
| EXPECT_TRUE((bool)Err); |
| llvm::consumeError(std::move(Err)); |
| |
| Replaces.clear(); |
| // Test overlap with an existing insertion. |
| Err = Replaces.add(Replacement("x.cc", 10, 0, "insert")); |
| EXPECT_TRUE(!Err); |
| llvm::consumeError(std::move(Err)); |
| Err = Replaces.add(Replacement("x.cc", 10, 3, "replace")); |
| EXPECT_TRUE((bool)Err); |
| llvm::consumeError(std::move(Err)); |
| } |
| |
| TEST_F(ReplacementTest, FailAddRegression) { |
| Replacements Replaces; |
| // Create two replacements, where the second one is an insertion of the empty |
| // string exactly at the end of the first one. |
| auto Err = Replaces.add(Replacement("x.cc", 0, 10, "1")); |
| EXPECT_TRUE(!Err); |
| llvm::consumeError(std::move(Err)); |
| Err = Replaces.add(Replacement("x.cc", 10, 0, "")); |
| EXPECT_TRUE(!Err); |
| llvm::consumeError(std::move(Err)); |
| |
| // Make sure we find the overlap with the first entry when inserting a |
| // replacement that ends exactly at the seam of the existing replacements. |
| Err = Replaces.add(Replacement("x.cc", 5, 5, "fail")); |
| EXPECT_TRUE((bool)Err); |
| llvm::consumeError(std::move(Err)); |
| |
| Err = Replaces.add(Replacement("x.cc", 10, 0, "")); |
| EXPECT_TRUE((bool)Err); |
| llvm::consumeError(std::move(Err)); |
| } |
| |
| TEST_F(ReplacementTest, FailAddInsertAtOffsetOfReplacement) { |
| Replacements Replaces; |
| auto Err = Replaces.add(Replacement("x.cc", 10, 2, "")); |
| EXPECT_TRUE(!Err); |
| llvm::consumeError(std::move(Err)); |
| Err = Replaces.add(Replacement("x.cc", 10, 0, "")); |
| EXPECT_TRUE((bool)Err); |
| llvm::consumeError(std::move(Err)); |
| } |
| |
| TEST_F(ReplacementTest, FailAddInsertAtOtherInsert) { |
| Replacements Replaces; |
| auto Err = Replaces.add(Replacement("x.cc", 10, 0, "a")); |
| EXPECT_TRUE(!Err); |
| llvm::consumeError(std::move(Err)); |
| Err = Replaces.add(Replacement("x.cc", 10, 0, "b")); |
| EXPECT_TRUE((bool)Err); |
| llvm::consumeError(std::move(Err)); |
| } |
| |
| TEST_F(ReplacementTest, CanApplyReplacements) { |
| FileID ID = Context.createInMemoryFile("input.cpp", |
| "line1\nline2\nline3\nline4"); |
| Replacements Replaces = |
| toReplacements({Replacement(Context.Sources, |
| Context.getLocation(ID, 2, 1), 5, "replaced"), |
| 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"); |
| auto Replaces = toReplacements({Replacement( |
| Context.Sources, Context.getLocation(ID, 2, 1), 5, "replaced")}); |
| |
| auto Err = Replaces.add(Replacement( |
| Context.Sources, Context.getLocation(ID, 2, 1), 5, "replaced")); |
| EXPECT_TRUE((bool)Err); |
| llvm::consumeError(std::move(Err)); |
| |
| Err = Replaces.add(Replacement(Context.Sources, Context.getLocation(ID, 2, 1), |
| 5, "replaced")); |
| EXPECT_TRUE((bool)Err); |
| llvm::consumeError(std::move(Err)); |
| |
| EXPECT_TRUE(applyAllReplacements(Replaces, Context.Rewrite)); |
| EXPECT_EQ("line1\nreplaced\nline3\nline4", Context.getRewrittenText(ID)); |
| } |
| |
| TEST_F(ReplacementTest, InvalidSourceLocationFailsApplyAll) { |
| Replacements Replaces = |
| toReplacements({Replacement(Context.Sources, SourceLocation(), 5, "2")}); |
| |
| EXPECT_FALSE(applyAllReplacements(Replaces, Context.Rewrite)); |
| } |
| |
| TEST_F(ReplacementTest, MultipleFilesReplaceAndFormat) { |
| // Column limit is 20. |
| std::string Code1 = "Long *a =\n" |
| " new Long();\n" |
| "long x = 1;"; |
| std::string Expected1 = "auto a = new Long();\n" |
| "long x =\n" |
| " 12345678901;"; |
| std::string Code2 = "int x = 123;\n" |
| "int y = 0;"; |
| std::string Expected2 = "int x =\n" |
| " 1234567890123;\n" |
| "int y = 10;"; |
| StringRef File1 = "format_1.cpp"; |
| StringRef File2 = "format_2.cpp"; |
| FileID ID1 = Context.createInMemoryFile(File1, Code1); |
| FileID ID2 = Context.createInMemoryFile(File2, Code2); |
| |
| // Scrambled the order of replacements. |
| std::map<std::string, Replacements> FileToReplaces; |
| FileToReplaces[File1] = toReplacements( |
| {tooling::Replacement(Context.Sources, Context.getLocation(ID1, 1, 1), 6, |
| "auto "), |
| tooling::Replacement(Context.Sources, Context.getLocation(ID1, 3, 10), 1, |
| "12345678901")}); |
| FileToReplaces[File2] = toReplacements( |
| {tooling::Replacement(Context.Sources, Context.getLocation(ID2, 1, 12), 0, |
| "4567890123"), |
| tooling::Replacement(Context.Sources, Context.getLocation(ID2, 2, 9), 1, |
| "10")}); |
| EXPECT_TRUE( |
| formatAndApplyAllReplacements(FileToReplaces, Context.Rewrite, |
| "{BasedOnStyle: LLVM, ColumnLimit: 20}")); |
| EXPECT_EQ(Expected1, Context.getRewrittenText(ID1)); |
| EXPECT_EQ(Expected2, Context.getRewrittenText(ID2)); |
| } |
| |
| TEST(ShiftedCodePositionTest, FindsNewCodePosition) { |
| Replacements Replaces = |
| toReplacements({Replacement("", 0, 1, ""), Replacement("", 4, 3, " ")}); |
| // Assume ' int i;' is turned into 'int i;' and cursor is located at '|'. |
| EXPECT_EQ(0u, Replaces.getShiftedCodePosition(0)); // |int i; |
| EXPECT_EQ(0u, Replaces.getShiftedCodePosition(1)); // |nt i; |
| EXPECT_EQ(1u, Replaces.getShiftedCodePosition(2)); // i|t i; |
| EXPECT_EQ(2u, Replaces.getShiftedCodePosition(3)); // in| i; |
| EXPECT_EQ(3u, Replaces.getShiftedCodePosition(4)); // int| i; |
| EXPECT_EQ(3u, Replaces.getShiftedCodePosition(5)); // int | i; |
| EXPECT_EQ(3u, Replaces.getShiftedCodePosition(6)); // int |i; |
| EXPECT_EQ(4u, Replaces.getShiftedCodePosition(7)); // int |; |
| EXPECT_EQ(5u, Replaces.getShiftedCodePosition(8)); // int i| |
| } |
| |
| TEST(ShiftedCodePositionTest, FindsNewCodePositionWithInserts) { |
| Replacements Replaces = toReplacements({Replacement("", 4, 0, "\"\n\"")}); |
| // Assume '"12345678"' is turned into '"1234"\n"5678"'. |
| EXPECT_EQ(3u, Replaces.getShiftedCodePosition(3)); // "123|5678" |
| EXPECT_EQ(7u, Replaces.getShiftedCodePosition(4)); // "1234|678" |
| EXPECT_EQ(8u, Replaces.getShiftedCodePosition(5)); // "12345|78" |
| } |
| |
| TEST(ShiftedCodePositionTest, FindsNewCodePositionInReplacedText) { |
| // Replace the first four characters with "abcd". |
| auto Replaces = toReplacements({Replacement("", 0, 4, "abcd")}); |
| for (unsigned i = 0; i < 3; ++i) |
| EXPECT_EQ(i, Replaces.getShiftedCodePosition(i)); |
| } |
| |
| TEST(ShiftedCodePositionTest, NoReplacementText) { |
| Replacements Replaces = toReplacements({Replacement("", 0, 42, "")}); |
| EXPECT_EQ(0u, Replaces.getShiftedCodePosition(0)); |
| EXPECT_EQ(0u, Replaces.getShiftedCodePosition(39)); |
| EXPECT_EQ(3u, Replaces.getShiftedCodePosition(45)); |
| EXPECT_EQ(0u, Replaces.getShiftedCodePosition(42)); |
| } |
| |
| 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 = toReplacements({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(Range, CalculateRangesOfReplacements) { |
| // Before: aaaabbbbbbz |
| // After : bbbbbbzzzzzzoooooooooooooooo |
| Replacements Replaces = toReplacements( |
| {Replacement("foo", 0, 4, ""), Replacement("foo", 10, 1, "zzzzzz"), |
| Replacement("foo", 11, 0, "oooooooooooooooo")}); |
| |
| std::vector<Range> Ranges = Replaces.getAffectedRanges(); |
| |
| EXPECT_EQ(2ul, Ranges.size()); |
| EXPECT_TRUE(Ranges[0].getOffset() == 0); |
| EXPECT_TRUE(Ranges[0].getLength() == 0); |
| EXPECT_TRUE(Ranges[1].getOffset() == 6); |
| EXPECT_TRUE(Ranges[1].getLength() == 22); |
| } |
| |
| TEST(Range, RangesAfterEmptyReplacements) { |
| std::vector<Range> Ranges = {Range(5, 6), Range(10, 5)}; |
| Replacements Replaces; |
| std::vector<Range> Expected = {Range(5, 10)}; |
| EXPECT_EQ(Expected, calculateRangesAfterReplacements(Replaces, Ranges)); |
| } |
| |
| TEST(Range, RangesAfterReplacements) { |
| std::vector<Range> Ranges = {Range(5, 2), Range(10, 5)}; |
| Replacements Replaces = toReplacements({Replacement("foo", 0, 2, "1234")}); |
| std::vector<Range> Expected = {Range(0, 4), Range(7, 2), Range(12, 5)}; |
| EXPECT_EQ(Expected, calculateRangesAfterReplacements(Replaces, Ranges)); |
| } |
| |
| TEST(Range, RangesBeforeReplacements) { |
| std::vector<Range> Ranges = {Range(5, 2), Range(10, 5)}; |
| Replacements Replaces = toReplacements({Replacement("foo", 20, 2, "1234")}); |
| std::vector<Range> Expected = {Range(5, 2), Range(10, 5), Range(20, 4)}; |
| EXPECT_EQ(Expected, calculateRangesAfterReplacements(Replaces, Ranges)); |
| } |
| |
| TEST(Range, NotAffectedByReplacements) { |
| std::vector<Range> Ranges = {Range(0, 2), Range(5, 2), Range(10, 5)}; |
| Replacements Replaces = toReplacements({Replacement("foo", 3, 2, "12"), |
| Replacement("foo", 12, 2, "12"), |
| Replacement("foo", 20, 5, "")}); |
| std::vector<Range> Expected = {Range(0, 2), Range(3, 4), Range(10, 5), |
| Range(20, 0)}; |
| EXPECT_EQ(Expected, calculateRangesAfterReplacements(Replaces, Ranges)); |
| } |
| |
| TEST(Range, RangesWithNonOverlappingReplacements) { |
| std::vector<Range> Ranges = {Range(0, 2), Range(5, 2), Range(10, 5)}; |
| Replacements Replaces = toReplacements({Replacement("foo", 3, 1, ""), |
| Replacement("foo", 6, 1, "123"), |
| Replacement("foo", 20, 2, "12345")}); |
| std::vector<Range> Expected = {Range(0, 2), Range(3, 0), Range(4, 4), |
| Range(11, 5), Range(21, 5)}; |
| EXPECT_EQ(Expected, calculateRangesAfterReplacements(Replaces, Ranges)); |
| } |
| |
| TEST(Range, RangesWithOverlappingReplacements) { |
| std::vector<Range> Ranges = {Range(0, 2), Range(5, 2), Range(15, 5), |
| Range(30, 5)}; |
| Replacements Replaces = toReplacements( |
| {Replacement("foo", 1, 3, ""), Replacement("foo", 6, 1, "123"), |
| Replacement("foo", 13, 3, "1"), Replacement("foo", 25, 15, "")}); |
| std::vector<Range> Expected = {Range(0, 1), Range(2, 4), Range(12, 5), |
| Range(22, 0)}; |
| EXPECT_EQ(Expected, calculateRangesAfterReplacements(Replaces, Ranges)); |
| } |
| |
| TEST(Range, MergeIntoOneRange) { |
| std::vector<Range> Ranges = {Range(0, 2), Range(5, 2), Range(15, 5)}; |
| Replacements Replaces = |
| toReplacements({Replacement("foo", 1, 15, "1234567890")}); |
| std::vector<Range> Expected = {Range(0, 15)}; |
| EXPECT_EQ(Expected, calculateRangesAfterReplacements(Replaces, Ranges)); |
| } |
| |
| TEST(Range, ReplacementsStartingAtRangeOffsets) { |
| std::vector<Range> Ranges = {Range(0, 2), Range(5, 5), Range(15, 5)}; |
| Replacements Replaces = toReplacements( |
| {Replacement("foo", 0, 2, "12"), Replacement("foo", 5, 1, "123"), |
| Replacement("foo", 7, 4, "12345"), Replacement("foo", 15, 10, "12")}); |
| std::vector<Range> Expected = {Range(0, 2), Range(5, 9), Range(18, 2)}; |
| EXPECT_EQ(Expected, calculateRangesAfterReplacements(Replaces, Ranges)); |
| } |
| |
| TEST(Range, ReplacementsEndingAtRangeEnds) { |
| std::vector<Range> Ranges = {Range(0, 2), Range(5, 2), Range(15, 5)}; |
| Replacements Replaces = toReplacements( |
| {Replacement("foo", 6, 1, "123"), Replacement("foo", 17, 3, "12")}); |
| std::vector<Range> Expected = {Range(0, 2), Range(5, 4), Range(17, 4)}; |
| EXPECT_EQ(Expected, calculateRangesAfterReplacements(Replaces, Ranges)); |
| } |
| |
| TEST(Range, AjacentReplacements) { |
| std::vector<Range> Ranges = {Range(0, 0), Range(15, 5)}; |
| Replacements Replaces = toReplacements( |
| {Replacement("foo", 1, 2, "123"), Replacement("foo", 12, 3, "1234")}); |
| std::vector<Range> Expected = {Range(0, 0), Range(1, 3), Range(13, 9)}; |
| EXPECT_EQ(Expected, calculateRangesAfterReplacements(Replaces, Ranges)); |
| } |
| |
| TEST(Range, MergeRangesAfterReplacements) { |
| std::vector<Range> Ranges = {Range(8, 0), Range(5, 2), Range(9, 0), Range(0, 1)}; |
| Replacements Replaces = toReplacements({Replacement("foo", 1, 3, ""), |
| Replacement("foo", 7, 0, "12"), |
| Replacement("foo", 9, 2, "")}); |
| std::vector<Range> Expected = {Range(0, 1), Range(2, 4), Range(7, 0), |
| Range(8, 0)}; |
| EXPECT_EQ(Expected, calculateRangesAfterReplacements(Replaces, Ranges)); |
| } |
| |
| TEST(Range, ConflictingRangesBeforeReplacements) { |
| std::vector<Range> Ranges = {Range(8, 3), Range(5, 4), Range(9, 1)}; |
| Replacements Replaces = toReplacements({Replacement("foo", 1, 3, "")}); |
| std::vector<Range> Expected = {Range(1, 0), Range(2, 6)}; |
| EXPECT_EQ(Expected, calculateRangesAfterReplacements(Replaces, Ranges)); |
| } |
| |
| 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. |
| auto AfterFirst = applyAllReplacements(Code, First); |
| EXPECT_TRUE(static_cast<bool>(AfterFirst)); |
| auto InSequenceRewrite = applyAllReplacements(*AfterFirst, Second); |
| EXPECT_TRUE(static_cast<bool>(InSequenceRewrite)); |
| EXPECT_EQ(Intermediate, *AfterFirst); |
| EXPECT_EQ(Result, *InSequenceRewrite); |
| |
| tooling::Replacements Merged = First.merge(Second); |
| auto MergedRewrite = applyAllReplacements(Code, Merged); |
| EXPECT_TRUE(static_cast<bool>(MergedRewrite)); |
| 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) { |
| auto AfterFirst = applyAllReplacements(Code, First); |
| EXPECT_TRUE(static_cast<bool>(AfterFirst)); |
| auto InSequenceRewrite = applyAllReplacements(*AfterFirst, Second); |
| tooling::Replacements Merged = First.merge(Second); |
| auto MergedRewrite = applyAllReplacements(Code, Merged); |
| EXPECT_TRUE(static_cast<bool>(MergedRewrite)); |
| 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", |
| toReplacements({{"", 2, 0, "b"}, {"", 3, 0, "b"}}), |
| toReplacements({{"", 0, 0, "c"}, {"", 1, 0, "c"}})); |
| mergeAndTestRewrite("aaa", "babaa", "babacac", |
| toReplacements({{"", 0, 0, "b"}, {"", 1, 0, "b"}}), |
| toReplacements({{"", 4, 0, "c"}, {"", 5, 0, "c"}})); |
| mergeAndTestRewrite("aaaa", "aaa", "aac", toReplacements({{"", 1, 1, ""}}), |
| toReplacements({{"", 2, 1, "c"}})); |
| |
| mergeAndTestRewrite("aa", "bbabba", "bbabcba", |
| toReplacements({{"", 0, 0, "bb"}, {"", 1, 0, "bb"}}), |
| toReplacements({{"", 4, 0, "c"}})); |
| } |
| |
| TEST_F(MergeReplacementsTest, Concatenations) { |
| // Basic concatenations. It is important to merge these into a single |
| // replacement to ensure the correct order. |
| { |
| auto First = toReplacements({{"", 0, 0, "a"}}); |
| auto Second = toReplacements({{"", 1, 0, "b"}}); |
| EXPECT_EQ(toReplacements({{"", 0, 0, "ab"}}), First.merge(Second)); |
| } |
| { |
| auto First = toReplacements({{"", 0, 0, "a"}}); |
| auto Second = toReplacements({{"", 0, 0, "b"}}); |
| EXPECT_EQ(toReplacements({{"", 0, 0, "ba"}}), First.merge(Second)); |
| } |
| mergeAndTestRewrite("", "a", "ab", toReplacements({{"", 0, 0, "a"}}), |
| toReplacements({{"", 1, 0, "b"}})); |
| mergeAndTestRewrite("", "a", "ba", toReplacements({{"", 0, 0, "a"}}), |
| toReplacements({{"", 0, 0, "b"}})); |
| } |
| |
| TEST_F(MergeReplacementsTest, NotChangingLengths) { |
| mergeAndTestRewrite("aaaa", "abba", "acca", |
| toReplacements({{"", 1, 2, "bb"}}), |
| toReplacements({{"", 1, 2, "cc"}})); |
| mergeAndTestRewrite("aaaa", "abba", "abcc", |
| toReplacements({{"", 1, 2, "bb"}}), |
| toReplacements({{"", 2, 2, "cc"}})); |
| mergeAndTestRewrite("aaaa", "abba", "ccba", |
| toReplacements({{"", 1, 2, "bb"}}), |
| toReplacements({{"", 0, 2, "cc"}})); |
| mergeAndTestRewrite("aaaaaa", "abbdda", "abccda", |
| toReplacements({{"", 1, 2, "bb"}, {"", 3, 2, "dd"}}), |
| toReplacements({{"", 2, 2, "cc"}})); |
| } |
| |
| TEST_F(MergeReplacementsTest, OverlappingRanges) { |
| mergeAndTestRewrite("aaa", "bbd", "bcbcd", |
| toReplacements({{"", 0, 1, "bb"}, {"", 1, 2, "d"}}), |
| toReplacements({{"", 1, 0, "c"}, {"", 2, 0, "c"}})); |
| |
| mergeAndTestRewrite("aaaa", "aabbaa", "acccca", |
| toReplacements({{"", 2, 0, "bb"}}), |
| toReplacements({{"", 1, 4, "cccc"}})); |
| mergeAndTestRewrite("aaaa", "aababa", "acccca", |
| toReplacements({{"", 2, 0, "b"}, {"", 3, 0, "b"}}), |
| toReplacements({{"", 1, 4, "cccc"}})); |
| mergeAndTestRewrite("aaaaaa", "abbbba", "abba", |
| toReplacements({{"", 1, 4, "bbbb"}}), |
| toReplacements({{"", 2, 2, ""}})); |
| mergeAndTestRewrite("aaaa", "aa", "cc", |
| toReplacements({{"", 1, 1, ""}, {"", 2, 1, ""}}), |
| toReplacements({{"", 0, 2, "cc"}})); |
| mergeAndTestRewrite("aa", "abbba", "abcbcba", |
| toReplacements({{"", 1, 0, "bbb"}}), |
| toReplacements({{"", 2, 0, "c"}, {"", 3, 0, "c"}})); |
| |
| mergeAndTestRewrite( |
| "aaa", "abbab", "ccdd", |
| toReplacements({{"", 0, 1, ""}, {"", 2, 0, "bb"}, {"", 3, 0, "b"}}), |
| toReplacements({{"", 0, 2, "cc"}, {"", 2, 3, "dd"}})); |
| mergeAndTestRewrite( |
| "aa", "babbab", "ccdd", |
| toReplacements({{"", 0, 0, "b"}, {"", 1, 0, "bb"}, {"", 2, 0, "b"}}), |
| toReplacements({{"", 0, 3, "cc"}, {"", 3, 3, "dd"}})); |
| } |
| |
| } // end namespace tooling |
| } // end namespace clang |
