maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/clang/unittests/Tooling/RefactoringTest.cpp

732 lines
30 KiB
C++
Raw Blame History

//===- 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/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 "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_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;";
FileID ID1 = Context.createInMemoryFile("format_1.cpp", Code1);
FileID ID2 = Context.createInMemoryFile("format_2.cpp", Code2);
tooling::Replacements Replaces;
// Scrambled the order of replacements.
Replaces.insert(tooling::Replacement(
Context.Sources, Context.getLocation(ID2, 1, 12), 0, "4567890123"));
Replaces.insert(tooling::Replacement(
Context.Sources, Context.getLocation(ID1, 1, 1), 6, "auto "));
Replaces.insert(tooling::Replacement(
Context.Sources, Context.getLocation(ID2, 2, 9), 1, "10"));
Replaces.insert(tooling::Replacement(
Context.Sources, Context.getLocation(ID1, 3, 10), 1, "12345678901"));
EXPECT_TRUE(formatAndApplyAllReplacements(
Replaces, Context.Rewrite, "{BasedOnStyle: LLVM, ColumnLimit: 20}"));
EXPECT_EQ(Expected1, Context.getRewrittenText(ID1));
EXPECT_EQ(Expected2, Context.getRewrittenText(ID2));
}
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(3u, shiftedCodePosition(Replaces, 5)); // int | i;
EXPECT_EQ(3u, 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(3u, shiftedCodePosition(Replaces, 5)); // int | i;
EXPECT_EQ(3u, 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(3u, shiftedCodePosition(Replaces, 3)); // "123|5678"
EXPECT_EQ(7u, shiftedCodePosition(Replaces, 4)); // "1234|678"
EXPECT_EQ(8u, shiftedCodePosition(Replaces, 5)); // "12345|78"
}
TEST(ShiftedCodePositionTest, FindsNewCodePositionInReplacedText) {
Replacements Replaces;
// Replace the first four characters with "abcd".
Replaces.insert(Replacement("", 0, 4, "abcd"));
for (unsigned i = 0; i < 3; ++i)
EXPECT_EQ(i, shiftedCodePosition(Replaces, i));
}
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(Range, CalculateRangesOfReplacements) {
// Before: aaaabbbbbbz
// After : bbbbbbzzzzzzoooooooooooooooo
Replacements Replaces;
Replaces.insert(Replacement("foo", 0, 4, ""));
Replaces.insert(Replacement("foo", 10, 1, "zzzzzz"));
Replaces.insert(Replacement("foo", 11, 0, "oooooooooooooooo"));
std::vector<Range> Ranges = calculateChangedRanges(Replaces);
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, RangesAfterReplacements) {
std::vector<Range> Ranges = {Range(5, 2), Range(10, 5)};
Replacements Replaces = {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 = {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 = {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 = {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 = {
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 = {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 = {
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 = {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 = {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 = {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(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
Reference in New Issue View Git Blame Copy Permalink