webrtc/rtc_base/buffer_queue_unittest.cc
Philipp Hancke b2ea936d33 Modernize deprecated headers in api/, pc/ and rtc_base/
Done using
  tools/clang/scripts/build_clang_tools_extra.py \
    --fetch out/Default clang-tidy clang-apply-replacements
  ninja -C out/Default
  gn gen out/Default --export-compile-commands
  cd out/Default
  tools/clang/third_party/llvm/clang-tools-extra/clang-tidy/tool/run-clang-tidy.py -p . \
    -clang-tidy-binary out/Default/tools/clang/third_party/llvm/build/bin/clang-tidy \
    -clang-apply-replacements-binary \
        out/Default/tools/clang/third_party/llvm/build/bin/clang-apply-replacements \
    -checks='-*,modernize-deprecated-headers' \
    -fix api/ pc/ rtc_base/
followed by
  git cl format
and a round of IWYU followed by more git cl format

Bug: webrtc:424706384
Change-Id: I8add6fe713fba9d6ef4cc3783bdb7e7f975aaa0a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/400921
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Commit-Queue: Philipp Hancke <phancke@meta.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#45182}
2025-07-21 00:02:35 -07:00

90 lines
2.9 KiB
C++

/*
* Copyright 2015 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "rtc_base/buffer_queue.h"
#include <cstring>
#include "test/gtest.h"
namespace webrtc {
TEST(BufferQueueTest, TestAll) {
const size_t kSize = 16;
const char in[kSize * 2 + 1] = "0123456789ABCDEFGHIJKLMNOPQRSTUV";
char out[kSize * 2];
size_t bytes;
BufferQueue queue1(1, kSize);
BufferQueue queue2(2, kSize);
// The queue is initially empty.
EXPECT_EQ(0u, queue1.size());
EXPECT_FALSE(queue1.ReadFront(out, kSize, &bytes));
// A write should succeed.
EXPECT_TRUE(queue1.WriteBack(in, kSize, &bytes));
EXPECT_EQ(kSize, bytes);
EXPECT_EQ(1u, queue1.size());
// The queue is full now (only one buffer allowed).
EXPECT_FALSE(queue1.WriteBack(in, kSize, &bytes));
EXPECT_EQ(1u, queue1.size());
// Reading previously written buffer.
EXPECT_TRUE(queue1.ReadFront(out, kSize, &bytes));
EXPECT_EQ(kSize, bytes);
EXPECT_EQ(0, memcmp(in, out, kSize));
// The queue is empty again now.
EXPECT_FALSE(queue1.ReadFront(out, kSize, &bytes));
EXPECT_EQ(0u, queue1.size());
// Reading only returns available data.
EXPECT_TRUE(queue1.WriteBack(in, kSize, &bytes));
EXPECT_EQ(kSize, bytes);
EXPECT_EQ(1u, queue1.size());
EXPECT_TRUE(queue1.ReadFront(out, kSize * 2, &bytes));
EXPECT_EQ(kSize, bytes);
EXPECT_EQ(0, memcmp(in, out, kSize));
EXPECT_EQ(0u, queue1.size());
// Reading maintains buffer boundaries.
EXPECT_TRUE(queue2.WriteBack(in, kSize / 2, &bytes));
EXPECT_EQ(1u, queue2.size());
EXPECT_TRUE(queue2.WriteBack(in + kSize / 2, kSize / 2, &bytes));
EXPECT_EQ(2u, queue2.size());
EXPECT_TRUE(queue2.ReadFront(out, kSize, &bytes));
EXPECT_EQ(kSize / 2, bytes);
EXPECT_EQ(0, memcmp(in, out, kSize / 2));
EXPECT_EQ(1u, queue2.size());
EXPECT_TRUE(queue2.ReadFront(out, kSize, &bytes));
EXPECT_EQ(kSize / 2, bytes);
EXPECT_EQ(0, memcmp(in + kSize / 2, out, kSize / 2));
EXPECT_EQ(0u, queue2.size());
// Reading truncates buffers.
EXPECT_TRUE(queue2.WriteBack(in, kSize / 2, &bytes));
EXPECT_EQ(1u, queue2.size());
EXPECT_TRUE(queue2.WriteBack(in + kSize / 2, kSize / 2, &bytes));
EXPECT_EQ(2u, queue2.size());
// Read first packet partially in too-small buffer.
EXPECT_TRUE(queue2.ReadFront(out, kSize / 4, &bytes));
EXPECT_EQ(kSize / 4, bytes);
EXPECT_EQ(0, memcmp(in, out, kSize / 4));
EXPECT_EQ(1u, queue2.size());
// Remainder of first packet is truncated, reading starts with next packet.
EXPECT_TRUE(queue2.ReadFront(out, kSize, &bytes));
EXPECT_EQ(kSize / 2, bytes);
EXPECT_EQ(0, memcmp(in + kSize / 2, out, kSize / 2));
EXPECT_EQ(0u, queue2.size());
}
} // namespace webrtc