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https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Jon Meow
9c716e9c3b
The small size is for the 1m vs 5m time limit -- all these tests _should_ be fast so a lower limit seems consistent, and the 5m timeout was getting in my way when trying to debug *actual* timeouts. The Carbon::Testing bit is for convenience -- test libraries are generally using it, it seems like the tests should too. Note this reduces the need for `using`. This does push NodeMatchers into Carbon::Testing -- I don't think this was benefiting from having its own namespace; `using namespace` is discouraged [under style](https://google.github.io/styleguide/cppguide.html#Namespaces), we wouldn't support an equivalent in Carbon, and it feels like it's not helping to avoid name collisions. (also tidy was bugging about it, and while I could NOLINT that, this felt like the better approach)
63 lines
1.8 KiB
C++
63 lines
1.8 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 "toolchain/source/source_buffer.h"
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#include <gtest/gtest.h>
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/Support/FileSystem.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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TEST(SourceBufferTest, StringRep) {
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SourceBuffer buffer =
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SourceBuffer::CreateFromText(llvm::Twine("Hello") + " World");
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EXPECT_EQ("/text", buffer.Filename());
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EXPECT_EQ("Hello World", buffer.Text());
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// Give a custom filename.
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auto buffer2 =
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SourceBuffer::CreateFromText("Hello World Again!", "/custom/text");
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EXPECT_EQ("/custom/text", buffer2.Filename());
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EXPECT_EQ("Hello World Again!", buffer2.Text());
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}
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auto CreateTestFile(llvm::StringRef text) -> std::string {
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int fd = -1;
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llvm::SmallString<1024> path;
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auto error_code =
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llvm::sys::fs::createTemporaryFile("test_file", ".txt", fd, path);
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if (error_code) {
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llvm::report_fatal_error(llvm::Twine("Failed to create temporary file: ") +
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error_code.message());
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}
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llvm::raw_fd_ostream out_stream(fd, /*shouldClose=*/true);
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out_stream << text;
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out_stream.close();
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return path.str().str();
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}
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TEST(SourceBufferTest, FileRep) {
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auto test_file_path = CreateTestFile("Hello World");
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auto expected_buffer = SourceBuffer::CreateFromFile(test_file_path);
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ASSERT_TRUE(static_cast<bool>(expected_buffer))
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<< "Error message: " << toString(expected_buffer.takeError());
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SourceBuffer& buffer = *expected_buffer;
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EXPECT_EQ(test_file_path, buffer.Filename());
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EXPECT_EQ("Hello World", buffer.Text());
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}
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} // namespace
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} // namespace Carbon::Testing
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