mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-29 22:02:42 +01:00
Jon Ross-Perkins
f088a71cec
This is sufficient to convert remaining toolchain tests to file_test. %s and %t are currently used. While #2978 might use %T with lit, I think that's resolving a lit-specific issue that's not necessary when TEST_TMPDIR is readily available for any necessary operations (i.e., setting the working directory). With ARGS, I think it's feasible to switch to file_test without %T. Also adds documentation to file_test_base.h, which was starting to feel like a significant gap. This is not yet handled by autoupdate, but I'm eyeing that next.
101 lines
3.1 KiB
C++
101 lines
3.1 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 <fstream>
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#include <vector>
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#include "llvm/ADT/StringExtras.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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using ::testing::AllOf;
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using ::testing::ElementsAre;
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using ::testing::Eq;
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using ::testing::Field;
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using ::testing::Matcher;
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class FileTestBaseTest : public FileTestBase {
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public:
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explicit FileTestBaseTest(const std::filesystem::path& path)
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: FileTestBase(path) {}
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static auto HasFilename(std::string filename) -> Matcher<TestFile> {
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return Field("filename", &TestFile::filename, Eq(filename));
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}
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static auto HasContent(std::string content) -> Matcher<TestFile> {
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return Field("content", &TestFile::content, Eq(content));
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}
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auto RunWithFiles(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,
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llvm::raw_pwrite_stream& stderr) -> bool override {
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if (!test_args.empty()) {
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llvm::ListSeparator sep;
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stdout << test_args.size() << " args: ";
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for (const auto& arg : test_args) {
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stdout << sep << "`" << arg << "`";
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}
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stdout << "\n";
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}
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auto filename = path().filename();
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if (filename == "args.carbon") {
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EXPECT_THAT(test_files, ElementsAre(HasFilename("args.carbon")));
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return true;
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} else if (filename == "example.carbon") {
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EXPECT_THAT(test_files, ElementsAre(HasFilename("example.carbon")));
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stdout << "something\n"
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"\n"
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"9: Line delta\n"
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"8: 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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EXPECT_THAT(test_files, ElementsAre(HasFilename("fail_example.carbon")));
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stderr << "Oops\n";
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return false;
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} else if (filename == "two_files.carbon") {
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int i = 0;
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for (const auto& file : test_files) {
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// Prints line numbers to validate per-file.
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stdout << file.filename << ": " << ++i << "\n";
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}
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EXPECT_THAT(
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test_files,
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ElementsAre(
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AllOf(HasFilename("a.carbon"),
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HasContent("// CHECK:STDOUT: a.carbon: [[@LINE+0]]\n\n")),
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AllOf(HasFilename("b.carbon"),
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HasContent("// CHECK:STDOUT: b.carbon: [[@LINE+1]]\n"))));
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return true;
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} else {
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ADD_FAILURE() << "Unexpected file: " << filename;
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return false;
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}
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}
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auto GetDefaultArgs() -> llvm::SmallVector<std::string> override {
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return {"default_args", "%s"};
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}
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};
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} // namespace
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auto RegisterFileTests(const llvm::SmallVector<std::filesystem::path>& paths)
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-> void {
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FileTestBaseTest::RegisterTests<FileTestBaseTest>("FileTestBaseTest", paths);
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}
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} // namespace Carbon::Testing
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