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Jon Ross-PerkinsandChandler Carruth
941e60ade6
This is really part of #2811, but is extracted out to allow a little review in parallelism because #2811 expects #2813. Getting this in will allow migration of toolchain tests, whereas #2811 is focused on explorer tests. For explorer test timing information, see #2811. The syntax being used for matching deliberately mirrors the `FileCheck` setup, partly for compatibility if something changes, partly so there's nothing new to learn, partly so that we don't need to build more test updating. Individual tests look like: ``` [ RUN ] ParseAndExecuteTestFile.explorer/parse_and_execute/testdata/assert/convert.carbon To test this file alone, run: bazel test //explorer/parse_and_execute:file_test.subset --test_arg=explorer/parse_and_execute/testdata/assert/convert.carbon [ OK ] ParseAndExecuteTestFile.explorer/parse_and_execute/testdata/assert/convert.carbon (202 ms) ``` The printed command line is intended to assist developers in debugging a single test, particularly when sharding the main test. The use of a single `.subset` target means the total number of targets is constant even as the number of test files increases, which may be important for some `bazel` execution environments. I plan to make similar changes to the `glob_sh_run` implementation so that we have consistent setups, i.e. that we no longer create target-per-file scaling risks. This uses `native_test` to share the test binary, avoiding re-linking if files are individually run. Investigation did reveal a mistake where STDOUT/STDERR wasn't prefixed on empty output lines; this PR fixes that mistake, so that output is fully covered. Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
51 lines
1.3 KiB
C++
51 lines
1.3 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 "testing/file_test/file_test_base.h"
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include <vector>
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/raw_ostream.h"
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namespace Carbon::Testing {
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namespace {
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class FileTestBaseTest : public FileTestBase {
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public:
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explicit FileTestBaseTest(llvm::StringRef path) : FileTestBase(path) {}
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auto RunOverFile(llvm::raw_ostream& stdout, llvm::raw_ostream& stderr)
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-> bool override {
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if (filename() == "example.carbon") {
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stdout << "something\n"
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"\n"
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"8: Line delta\n"
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"7: Negative line delta\n"
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"+*[]{}\n"
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"Foo baz\n";
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return true;
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} else if (filename() == "fail_example.carbon") {
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stderr << "Oops\n";
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return false;
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} else {
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ADD_FAILURE() << "Unexpected file: " << path().str();
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return false;
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}
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}
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};
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} // namespace
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auto RegisterFileTests(const std::vector<llvm::StringRef>& paths) -> void {
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FileTestBaseTest::RegisterTests(
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"FileTestBaseTest", paths,
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[](llvm::StringRef path) { return new FileTestBaseTest(path); });
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}
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} // namespace Carbon::Testing
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