mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-30 11:35:01 +01:00
Jon Ross-Perkins
b5167b2d69
I've migrated the toolchain autoupdate scripts here, I just need a little more time to do the explorer side (which I need to check performance, that may require multithreading as we do in the current script). However, this felt substantial enough to share and it means I can handle autoupdate in more of the toolchain, including preparatory work for autoupdate on multi-file tests. Once explorer is done I'll remove the old script.
94 lines
3.2 KiB
C++
94 lines
3.2 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 "absl/flags/flag.h"
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#include "explorer/main.h"
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#include "testing/file_test/file_test_base.h"
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#include "testing/util/test_raw_ostream.h"
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ABSL_FLAG(bool, trace, false,
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"Set to true to run tests with tracing enabled, even if they don't "
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"otherwise specify it. This does not result in checking trace output "
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"contents; it essentially only verifies there's not a crash bug.");
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namespace Carbon::Testing {
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namespace {
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class ExplorerFileTest : public FileTestBase {
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public:
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using FileTestBase::FileTestBase;
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auto Run(const llvm::SmallVector<llvm::StringRef>& test_args,
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const llvm::SmallVector<TestFile>& test_files,
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llvm::raw_pwrite_stream& stdout, llvm::raw_pwrite_stream& stderr)
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-> ErrorOr<bool> override {
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// Create the files in-memory.
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llvm::vfs::InMemoryFileSystem fs(new llvm::vfs::InMemoryFileSystem());
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for (const auto& test_file : test_files) {
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if (!fs.addFile(test_file.filename, /*ModificationTime=*/0,
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llvm::MemoryBuffer::getMemBuffer(test_file.content))) {
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return ErrorBuilder() << "File is repeated: " << test_file.filename;
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}
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}
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// Add the prelude.
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llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> prelude =
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llvm::MemoryBuffer::getFile("explorer/data/prelude.carbon");
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if (prelude.getError()) {
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return ErrorBuilder() << prelude.getError().message();
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}
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// TODO: This path is long with a prefix / because of the path expectations
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// in tests. Change those to allow a shorter path (e.g., `prelude.carbon`)
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// here.
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static constexpr llvm::StringLiteral PreludePath =
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"/explorer/data/prelude.carbon";
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if (!fs.addFile(PreludePath, /*ModificationTime=*/0, std::move(*prelude))) {
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return ErrorBuilder() << "Duplicate prelude.carbon";
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}
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llvm::SmallVector<const char*> args = {"explorer"};
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for (auto arg : test_args) {
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args.push_back(arg.data());
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}
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// Trace output is only checked for a few tests.
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bool check_trace_output =
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path().string().find("trace_testdata/") != std::string::npos;
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int exit_code = ExplorerMain(
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args.size(), args.data(), /*install_path=*/"", PreludePath, stdout,
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stderr, check_trace_output ? stdout : trace_stream_, fs);
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return exit_code == EXIT_SUCCESS;
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}
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auto ValidateRun(const llvm::SmallVector<TestFile>& /*test_files*/)
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-> void override {
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// Skip trace test check as they use stdout stream instead of
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// trace_stream_ostream
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if (absl::GetFlag(FLAGS_trace)) {
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EXPECT_FALSE(trace_stream_.TakeStr().empty())
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<< "Tracing should always do something";
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}
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}
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auto GetDefaultArgs() -> llvm::SmallVector<std::string> override {
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llvm::SmallVector<std::string> args;
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if (absl::GetFlag(FLAGS_trace)) {
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args.push_back("--trace_file=-");
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args.push_back("--trace_phase=all");
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}
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args.push_back("%s");
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return args;
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}
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TestRawOstream trace_stream_;
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};
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} // namespace
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CARBON_FILE_TEST_FACTORY(ExplorerFileTest);
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} // namespace Carbon::Testing
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