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#include "ClangTidyTest.h"
#include "llvm/HeaderGuardCheck.h"
#include "llvm/IncludeOrderCheck.h"
#include "gtest/gtest.h"
using namespace clang::tidy::llvm_check;
namespace clang {
namespace tidy {
namespace test {
// FIXME: It seems this might be incompatible to dos path. Investigating.
#if !defined(_WIN32)
static std::string runHeaderGuardCheck(StringRef Code, const Twine &Filename,
Optional<StringRef> ExpectedWarning) {
std::vector<ClangTidyError> Errors;
std::string Result = test::runCheckOnCode<LLVMHeaderGuardCheck>(
Code, &Errors, Filename, std::string("-xc++-header"));
if (Errors.size() != (size_t)ExpectedWarning.hasValue())
return "invalid error count";
if (ExpectedWarning && *ExpectedWarning != Errors.back().Message.Message)
return "expected: '" + ExpectedWarning->str() + "', saw: '" +
Errors.back().Message.Message + "'";
return Result;
}
namespace {
struct WithEndifComment : public LLVMHeaderGuardCheck {
WithEndifComment(StringRef Name, ClangTidyContext *Context)
: LLVMHeaderGuardCheck(Name, Context) {}
bool shouldSuggestEndifComment(StringRef Filename) override { return true; }
};
} // namespace
static std::string
runHeaderGuardCheckWithEndif(StringRef Code, const Twine &Filename,
Optional<StringRef> ExpectedWarning) {
std::vector<ClangTidyError> Errors;
std::string Result = test::runCheckOnCode<WithEndifComment>(
Code, &Errors, Filename, std::string("-xc++-header"));
if (Errors.size() != (size_t)ExpectedWarning.hasValue())
return "invalid error count";
if (ExpectedWarning && *ExpectedWarning != Errors.back().Message.Message)
return "expected: '" + ExpectedWarning->str() + "', saw: '" +
Errors.back().Message.Message + "'";
return Result;
}
TEST(LLVMHeaderGuardCheckTest, FixHeaderGuards) {
EXPECT_EQ("#ifndef LLVM_ADT_FOO_H\n"
"#define LLVM_ADT_FOO_H\n"
"#endif\n",
runHeaderGuardCheck(
"#ifndef FOO\n"
"#define FOO\n"
"#endif\n",
"include/llvm/ADT/foo.h",
StringRef("header guard does not follow preferred style")));
// Allow trailing underscores.
EXPECT_EQ("#ifndef LLVM_ADT_FOO_H_\n"
"#define LLVM_ADT_FOO_H_\n"
"#endif\n",
runHeaderGuardCheck("#ifndef LLVM_ADT_FOO_H_\n"
"#define LLVM_ADT_FOO_H_\n"
"#endif\n",
"include/llvm/ADT/foo.h", None));
EXPECT_EQ("#ifndef LLVM_CLANG_C_BAR_H\n"
"#define LLVM_CLANG_C_BAR_H\n"
"\n"
"\n"
"#endif\n",
runHeaderGuardCheck("", "./include/clang-c/bar.h",
StringRef("header is missing header guard")));
EXPECT_EQ("#ifndef LLVM_CLANG_LIB_CODEGEN_C_H\n"
"#define LLVM_CLANG_LIB_CODEGEN_C_H\n"
"\n"
"\n"
"#endif\n",
runHeaderGuardCheck("", "tools/clang/lib/CodeGen/c.h",
StringRef("header is missing header guard")));
EXPECT_EQ("#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_X_H\n"
"#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_X_H\n"
"\n"
"\n"
"#endif\n",
runHeaderGuardCheck("", "tools/clang/tools/extra/clang-tidy/x.h",
StringRef("header is missing header guard")));
EXPECT_EQ(
"int foo;\n"
"#ifndef LLVM_CLANG_BAR_H\n"
"#define LLVM_CLANG_BAR_H\n"
"#endif\n",
runHeaderGuardCheck("int foo;\n"
"#ifndef LLVM_CLANG_BAR_H\n"
"#define LLVM_CLANG_BAR_H\n"
"#endif\n",
"include/clang/bar.h",
StringRef("code/includes outside of area guarded by "
"header guard; consider moving it")));
EXPECT_EQ(
"#ifndef LLVM_CLANG_BAR_H\n"
"#define LLVM_CLANG_BAR_H\n"
"#endif\n"
"int foo;\n",
runHeaderGuardCheck("#ifndef LLVM_CLANG_BAR_H\n"
"#define LLVM_CLANG_BAR_H\n"
"#endif\n"
"int foo;\n",
"include/clang/bar.h",
StringRef("code/includes outside of area guarded by "
"header guard; consider moving it")));
EXPECT_EQ("#ifndef LLVM_CLANG_BAR_H\n"
"#define LLVM_CLANG_BAR_H\n"
"\n"
"int foo;\n"
"#ifndef FOOLOLO\n"
"#define FOOLOLO\n"
"#endif\n"
"\n"
"#endif\n",
runHeaderGuardCheck("int foo;\n"
"#ifndef FOOLOLO\n"
"#define FOOLOLO\n"
"#endif\n",
"include/clang/bar.h",
StringRef("header is missing header guard")));
// Fix incorrect #endif comments even if we shouldn't add new ones.
EXPECT_EQ("#ifndef LLVM_ADT_FOO_H\n"
"#define LLVM_ADT_FOO_H\n"
"#endif // LLVM_ADT_FOO_H\n",
runHeaderGuardCheck(
"#ifndef FOO\n"
"#define FOO\n"
"#endif // FOO\n",
"include/llvm/ADT/foo.h",
StringRef("header guard does not follow preferred style")));
EXPECT_EQ("#ifndef LLVM_ADT_FOO_H\n"
"#define LLVM_ADT_FOO_H\n"
"#endif // LLVM_ADT_FOO_H\n",
runHeaderGuardCheckWithEndif(
"#ifndef FOO\n"
"#define FOO\n"
"#endif\n",
"include/llvm/ADT/foo.h",
StringRef("header guard does not follow preferred style")));
EXPECT_EQ("#ifndef LLVM_ADT_FOO_H\n"
"#define LLVM_ADT_FOO_H\n"
"#endif // LLVM_ADT_FOO_H\n",
runHeaderGuardCheckWithEndif(
"#ifndef LLVM_ADT_FOO_H\n"
"#define LLVM_ADT_FOO_H\n"
"#endif // LLVM_H\n",
"include/llvm/ADT/foo.h",
StringRef("#endif for a header guard should reference the "
"guard macro in a comment")));
EXPECT_EQ("#ifndef LLVM_ADT_FOO_H\n"
"#define LLVM_ADT_FOO_H\n"
"#endif /* LLVM_ADT_FOO_H */\n",
runHeaderGuardCheckWithEndif("#ifndef LLVM_ADT_FOO_H\n"
"#define LLVM_ADT_FOO_H\n"
"#endif /* LLVM_ADT_FOO_H */\n",
"include/llvm/ADT/foo.h", None));
EXPECT_EQ("#ifndef LLVM_ADT_FOO_H_\n"
"#define LLVM_ADT_FOO_H_\n"
"#endif // LLVM_ADT_FOO_H_\n",
runHeaderGuardCheckWithEndif("#ifndef LLVM_ADT_FOO_H_\n"
"#define LLVM_ADT_FOO_H_\n"
"#endif // LLVM_ADT_FOO_H_\n",
"include/llvm/ADT/foo.h", None));
EXPECT_EQ("#ifndef LLVM_ADT_FOO_H\n"
"#define LLVM_ADT_FOO_H\n"
"#endif // LLVM_ADT_FOO_H\n",
runHeaderGuardCheckWithEndif(
"#ifndef LLVM_ADT_FOO_H_\n"
"#define LLVM_ADT_FOO_H_\n"
"#endif // LLVM\n",
"include/llvm/ADT/foo.h",
StringRef("header guard does not follow preferred style")));
EXPECT_EQ("#ifndef LLVM_ADT_FOO_H\n"
"#define LLVM_ADT_FOO_H\n"
"#endif \\ \n"
"// LLVM_ADT_FOO_H\n",
runHeaderGuardCheckWithEndif(
"#ifndef LLVM_ADT_FOO_H\n"
"#define LLVM_ADT_FOO_H\n"
"#endif \\ \n"
"// LLVM_ADT_FOO_H\n",
"include/llvm/ADT/foo.h",
StringRef("backslash and newline separated by space")));
EXPECT_EQ("#ifndef LLVM_ADT_FOO_H\n"
"#define LLVM_ADT_FOO_H\n"
"#endif /* LLVM_ADT_FOO_H\\ \n"
" FOO */",
runHeaderGuardCheckWithEndif("#ifndef LLVM_ADT_FOO_H\n"
"#define LLVM_ADT_FOO_H\n"
"#endif /* LLVM_ADT_FOO_H\\ \n"
" FOO */",
"include/llvm/ADT/foo.h", None));
EXPECT_EQ("#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANGD_FOO_H\n"
"#define LLVM_CLANG_TOOLS_EXTRA_CLANGD_FOO_H\n"
"\n"
"\n"
"#endif\n",
runHeaderGuardCheck(
"", "/llvm-project/clang-tools-extra/clangd/foo.h",
StringRef("header is missing header guard")));
}
#endif
} // namespace test
} // namespace tidy
} // namespace clang
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