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https://github.com/carbon-language/carbon-lang.git
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Chandler Carruth
643fdab1b8
This makes it easy to wire up build systems like Bazel that need to know the actual include paths used. It also gives us a convenient place to export any other information that build systems or integrations need, and to get debugging info from users. Most of the complexity is computing the Clang header search paths, but I couldn't see a direct way to get closer to the source-of-truth than this, and it doesn't seem _too_ unreasonable.
79 lines
2.8 KiB
C++
79 lines
2.8 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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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::ConfigFailedToReadDigest,
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Kind::ConfigFailedToSetupTarget,
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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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Kind::FailureBuildingRuntimes,
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Kind::FailureRunningClang,
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Kind::FailureRunningClangToLink,
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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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// Producing an emit failure may be infeasible.
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Kind::CodeGenUnableToEmit,
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// TODO: This is currently hard to test because it requires building and
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// importing a module, which attempts to create additional files with
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// unpredictable names in the module cache, which bazel doesn't permit.
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Kind::InCppModule,
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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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};
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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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