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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
20c20595ba
Removes the nullptr default for safety. Note, I think cpp support doesn't allow things like `<version>` or inline code yet, and language-server support doesn't allow non-hermetic files, so the best I can test is an error.
71 lines
2.6 KiB
C++
71 lines
2.6 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include <gtest/gtest.h>
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#include "absl/flags/flag.h"
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#include "toolchain/diagnostics/diagnostic_kind.h"
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#include "toolchain/testing/coverage_helper.h"
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ABSL_FLAG(std::string, testdata_manifest, "",
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"A path to a file containing repo-relative names of test files.");
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namespace Carbon::Diagnostics {
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namespace {
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constexpr Kind Kinds[] = {
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#define CARBON_DIAGNOSTIC_KIND(Name) Kind::Name,
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#include "toolchain/diagnostics/diagnostic_kind.def"
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};
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// TODO: LanguageServerDiagnosticInWrongFile currently has coverage, but
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// mainly due to incorrect behavior in C++ diagnostics. See
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// language_server/testdata/text_document/open_with_cpp_nonexistent.carbon.
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// Leaving this TODO here until it's more precisely tested, because the C++
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// diagnostics should be fixed (removing coverage); see below TODO.
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//
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// TODO: This can only fire if the first message in a diagnostic is rooted
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// in a file other than the file being compiled. The language server
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// currently only supports compiling one file at a time. Do one of:
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// - When imports are supported, find a diagnostic whose first message isn't
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// in the current file.
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// - Require all diagnostics produced by compiling have their first location
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// be in the file being compiled, never an import.
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// Kind::LanguageServerDiagnosticInWrongFile,
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constexpr Kind UntestedKinds[] = {
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// These exist only for unit tests.
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Kind::TestDiagnostic,
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Kind::TestDiagnosticNote,
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// Diagnosing erroneous install conditions, but test environments are
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// typically correct.
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Kind::CompilePreludeManifestError,
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Kind::DriverInstallInvalid,
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// These diagnose filesystem issues that are hard to unit test.
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Kind::ErrorReadingFile,
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Kind::ErrorStattingFile,
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Kind::FileTooLarge,
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// These aren't feasible to test with a normal testcase, but are tested in
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// lex/tokenized_buffer_test.cpp.
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Kind::TooManyTokens,
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Kind::UnsupportedCrLineEnding,
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Kind::UnsupportedLfCrLineEnding,
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// This is a little long but is tested in lex/numeric_literal_test.cpp.
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Kind::TooManyDigits,
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};
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// Looks for diagnostic kinds that aren't covered by a file_test.
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TEST(Coverage, Kind) {
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Testing::TestKindCoverage(absl::GetFlag(FLAGS_testdata_manifest),
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R"(^ *// CHECK:STDERR: .* \[(\w+)\]$)",
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llvm::ArrayRef(Kinds),
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llvm::ArrayRef(UntestedKinds));
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}
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} // namespace
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} // namespace Carbon::Diagnostics
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