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//===-- RenameTests.cpp -----------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "Annotations.h"
#include "TestFS.h"
#include "TestTU.h"
#include "refactor/Rename.h"
#include "clang/Tooling/Core/Replacement.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
namespace clang {
namespace clangd {
namespace {
MATCHER_P2(RenameRange, Code, Range, "") {
return replacementToEdit(Code, arg).range == Range;
}
TEST(RenameTest, SingleFile) {
struct Test {
const char* Before;
const char* After;
} Tests[] = {
// Rename function.
{
R"cpp(
void foo() {
fo^o();
}
)cpp",
R"cpp(
void abcde() {
abcde();
}
)cpp",
},
// Rename type.
{
R"cpp(
struct foo{};
foo test() {
f^oo x;
return x;
}
)cpp",
R"cpp(
struct abcde{};
abcde test() {
abcde x;
return x;
}
)cpp",
},
// Rename variable.
{
R"cpp(
void bar() {
if (auto ^foo = 5) {
foo = 3;
}
}
)cpp",
R"cpp(
void bar() {
if (auto abcde = 5) {
abcde = 3;
}
}
)cpp",
},
};
for (const Test &T : Tests) {
Annotations Code(T.Before);
auto TU = TestTU::withCode(Code.code());
auto AST = TU.build();
auto RenameResult =
renameWithinFile(AST, testPath(TU.Filename), Code.point(), "abcde");
ASSERT_TRUE(bool(RenameResult)) << RenameResult.takeError();
auto ApplyResult =
tooling::applyAllReplacements(Code.code(), *RenameResult);
ASSERT_TRUE(bool(ApplyResult)) << ApplyResult.takeError();
EXPECT_EQ(T.After, *ApplyResult) << T.Before;
}
}
TEST(RenameTest, Renameable) {
struct Case {
const char *Code;
const char* ErrorMessage; // null if no error
bool IsHeaderFile;
};
const bool HeaderFile = true;
Case Cases[] = {
{R"cpp(// allow -- function-local
void f(int [[Lo^cal]]) {
[[Local]] = 2;
}
)cpp",
nullptr, HeaderFile},
{R"cpp(// allow -- symbol is indexable and has no refs in index.
void [[On^lyInThisFile]]();
)cpp",
nullptr, HeaderFile},
{R"cpp(// disallow -- symbol is indexable and has other refs in index.
void f() {
Out^side s;
}
)cpp",
"used outside main file", HeaderFile},
{R"cpp(// disallow -- symbol is not indexable.
namespace {
class Unin^dexable {};
}
)cpp",
"not eligible for indexing", HeaderFile},
{R"cpp(// disallow -- namespace symbol isn't supported
namespace fo^o {}
)cpp",
"not a supported kind", HeaderFile},
{
R"cpp(
#define MACRO 1
int s = MAC^RO;
)cpp",
"not a supported kind", HeaderFile},
{R"cpp(// foo is declared outside the file.
void fo^o() {}
)cpp", "used outside main file", !HeaderFile/*cc file*/},
};
const char *CommonHeader = R"cpp(
class Outside {};
void foo();
)cpp";
TestTU OtherFile = TestTU::withCode("Outside s; auto ss = &foo;");
OtherFile.HeaderCode = CommonHeader;
OtherFile.Filename = "other.cc";
// The index has a "Outside" reference and a "foo" reference.
auto OtherFileIndex = OtherFile.index();
for (const auto& Case : Cases) {
Annotations T(Case.Code);
TestTU TU = TestTU::withCode(T.code());
TU.HeaderCode = CommonHeader;
if (Case.IsHeaderFile) {
// We open the .h file as the main file.
TU.Filename = "test.h";
// Parsing the .h file as C++ include.
TU.ExtraArgs.push_back("-xobjective-c++-header");
}
auto AST = TU.build();
auto Results = renameWithinFile(AST, testPath(TU.Filename), T.point(),
"dummyNewName", OtherFileIndex.get());
bool WantRename = true;
if (T.ranges().empty())
WantRename = false;
if (!WantRename) {
assert(Case.ErrorMessage && "Error message must be set!");
EXPECT_FALSE(Results) << "expected renameWithinFile returned an error: "
<< T.code();
auto ActualMessage = llvm::toString(Results.takeError());
EXPECT_THAT(ActualMessage, testing::HasSubstr(Case.ErrorMessage));
} else {
EXPECT_TRUE(bool(Results)) << "renameWithinFile returned an error: "
<< llvm::toString(Results.takeError());
std::vector<testing::Matcher<tooling::Replacement>> Expected;
for (const auto &R : T.ranges())
Expected.push_back(RenameRange(TU.Code, R));
EXPECT_THAT(*Results, UnorderedElementsAreArray(Expected));
}
}
}
} // namespace
} // namespace clangd
} // namespace clang
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