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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
fa95892a37
I'm working to make sure remaining diagnostics have coverage, at least the ones I'd previously added a TODO for. Note in particular that I couldn't figure out a repro for UnaryOperatorRequiresWhitespace; if you have one, I can add a test, but otherwise maybe it's actually unreachable due to being diagnosed through infix logic (or, maybe this'll let fuzzing tell me an example).
56 lines
1.9 KiB
C++
56 lines
1.9 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 {
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namespace {
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constexpr DiagnosticKind DiagnosticKinds[] = {
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#define CARBON_DIAGNOSTIC_KIND(Name) DiagnosticKind::Name,
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#include "toolchain/diagnostics/diagnostic_kind.def"
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};
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constexpr DiagnosticKind UntestedDiagnosticKinds[] = {
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// These exist only for unit tests.
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DiagnosticKind::TestDiagnostic,
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DiagnosticKind::TestDiagnosticNote,
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// These diagnose filesystem issues that are hard to unit test.
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DiagnosticKind::ErrorReadingFile,
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DiagnosticKind::ErrorStattingFile,
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DiagnosticKind::FileTooLarge,
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// Int literals are currently limited to i32. Once that's fixed, this
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// should be tested.
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DiagnosticKind::ArrayBoundTooLarge,
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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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DiagnosticKind::TooManyTokens,
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DiagnosticKind::UnsupportedCRLineEnding,
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DiagnosticKind::UnsupportedLFCRLineEnding,
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// This is a little long but is tested in lex/numeric_literal_test.cpp.
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DiagnosticKind::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, DiagnosticKind) {
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Testing::TestKindCoverage(absl::GetFlag(FLAGS_testdata_manifest),
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R"(^ *// CHECK:STDERR: .*\.carbon:.* \[(\w+)\]$)",
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llvm::ArrayRef(DiagnosticKinds),
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llvm::ArrayRef(UntestedDiagnosticKinds));
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}
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} // namespace
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} // namespace Carbon
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