blob: 9d2baf83ba55259bf4ea55d66844ca5961cb32fa [file] [log] [blame]
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "spdy/core/array_output_buffer.h"
#include "common/platform/api/quiche_test.h"
namespace spdy {
namespace test {
// This test verifies that ArrayOutputBuffer is initialized properly.
TEST(ArrayOutputBufferTest, InitializedFromArray) {
char array[100];
ArrayOutputBuffer buffer(array, sizeof(array));
EXPECT_EQ(sizeof(array), buffer.BytesFree());
EXPECT_EQ(0u, buffer.Size());
EXPECT_EQ(array, buffer.Begin());
// This test verifies that Reset() causes an ArrayOutputBuffer's capacity and
// size to be reset to the initial state.
TEST(ArrayOutputBufferTest, WriteAndReset) {
char array[100];
ArrayOutputBuffer buffer(array, sizeof(array));
// Let's write some bytes.
char* dst;
int size;
buffer.Next(&dst, &size);
ASSERT_GT(size, 1);
ASSERT_NE(nullptr, dst);
const int64_t written = size / 2;
memset(dst, 'x', written);
// The buffer should be partially used.
EXPECT_EQ(static_cast<uint64_t>(size) - written, buffer.BytesFree());
EXPECT_EQ(static_cast<uint64_t>(written), buffer.Size());
// After a reset, the buffer should regain its full capacity.
EXPECT_EQ(sizeof(array), buffer.BytesFree());
EXPECT_EQ(0u, buffer.Size());
} // namespace test
} // namespace spdy