mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 20:30:14 +01:00
Geoff Romer
e3d3122f1d
Rationale: this convention avoids forcing closely-related code to be far apart in the namespace hierarchy, and vice versa. By the same token, it makes the namespace hierarchy more consistent with the directory hierarchy.
70 lines
2.3 KiB
C++
70 lines
2.3 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 "toolchain/source/source_buffer.h"
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#include <gtest/gtest.h>
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#include "common/check.h"
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#include "llvm/Support/VirtualFileSystem.h"
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#include "toolchain/diagnostics/diagnostic_emitter.h"
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namespace Carbon {
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namespace {
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static constexpr llvm::StringLiteral TestFileName = "test.carbon";
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TEST(SourceBufferTest, MissingFile) {
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llvm::vfs::InMemoryFileSystem fs;
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auto buffer = SourceBuffer::CreateFromFile(fs, TestFileName,
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ConsoleDiagnosticConsumer());
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EXPECT_FALSE(buffer);
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}
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TEST(SourceBufferTest, SimpleFile) {
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llvm::vfs::InMemoryFileSystem fs;
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CARBON_CHECK(fs.addFile(TestFileName, /*ModificationTime=*/0,
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llvm::MemoryBuffer::getMemBuffer("Hello World")));
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auto buffer = SourceBuffer::CreateFromFile(fs, TestFileName,
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ConsoleDiagnosticConsumer());
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ASSERT_TRUE(buffer);
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EXPECT_EQ(TestFileName, buffer->filename());
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EXPECT_EQ("Hello World", buffer->text());
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}
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TEST(SourceBufferTest, NoNull) {
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llvm::vfs::InMemoryFileSystem fs;
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static constexpr char NoNull[3] = {'a', 'b', 'c'};
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CARBON_CHECK(fs.addFile(
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TestFileName, /*ModificationTime=*/0,
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llvm::MemoryBuffer::getMemBuffer(llvm::StringRef(NoNull, sizeof(NoNull)),
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/*BufferName=*/"",
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/*RequiresNullTerminator=*/false)));
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auto buffer = SourceBuffer::CreateFromFile(fs, TestFileName,
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ConsoleDiagnosticConsumer());
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ASSERT_TRUE(buffer);
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EXPECT_EQ(TestFileName, buffer->filename());
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EXPECT_EQ("abc", buffer->text());
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}
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TEST(SourceBufferTest, EmptyFile) {
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llvm::vfs::InMemoryFileSystem fs;
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CARBON_CHECK(fs.addFile(TestFileName, /*ModificationTime=*/0,
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llvm::MemoryBuffer::getMemBuffer("")));
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auto buffer = SourceBuffer::CreateFromFile(fs, TestFileName,
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ConsoleDiagnosticConsumer());
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ASSERT_TRUE(buffer);
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EXPECT_EQ(TestFileName, buffer->filename());
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EXPECT_EQ("", buffer->text());
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}
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} // namespace
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} // namespace Carbon
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