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//===- BitstreamWriterTest.cpp - Tests for BitstreamWriter ----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/Bitstream/BitstreamWriter.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(BitstreamWriterTest, emitBlob) {
SmallString<64> Buffer;
BitstreamWriter W(Buffer);
W.emitBlob("str", /* ShouldEmitSize */ false);
EXPECT_EQ(StringRef("str\0", 4), Buffer);
}
TEST(BitstreamWriterTest, emitBlobWithSize) {
SmallString<64> Buffer;
{
BitstreamWriter W(Buffer);
W.emitBlob("str");
}
SmallString<64> Expected;
{
BitstreamWriter W(Expected);
W.EmitVBR(3, 6);
W.FlushToWord();
W.Emit('s', 8);
W.Emit('t', 8);
W.Emit('r', 8);
W.Emit(0, 8);
}
EXPECT_EQ(StringRef(Expected), Buffer);
}
TEST(BitstreamWriterTest, emitBlobEmpty) {
SmallString<64> Buffer;
BitstreamWriter W(Buffer);
W.emitBlob("", /* ShouldEmitSize */ false);
EXPECT_EQ(StringRef(""), Buffer);
}
TEST(BitstreamWriterTest, emitBlob4ByteAligned) {
SmallString<64> Buffer;
BitstreamWriter W(Buffer);
W.emitBlob("str0", /* ShouldEmitSize */ false);
EXPECT_EQ(StringRef("str0"), Buffer);
}
} // end namespace
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