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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
1974e44fd9
Similar to #3705, we actually have a mix of `Make` and `Create` in factory functions too, so this PR is normalizing on `Make`. It's intended to be consistent with the naming choice for Carbon factory functions. Note, MakeSyntheticBlock is the only one I feel a little weird about because llvm's own APIs use Create, and this is essentially wrapping LLVM calls. But the flipside is it also feels like a vague line to draw, when we also differ from LLVM coding style in other ways.
70 lines
2.1 KiB
C++
70 lines
2.1 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 "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 =
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SourceBuffer::MakeFromFile(fs, TestFileName, 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 =
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SourceBuffer::MakeFromFile(fs, TestFileName, 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 =
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SourceBuffer::MakeFromFile(fs, TestFileName, 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 =
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SourceBuffer::MakeFromFile(fs, TestFileName, 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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