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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "net/spdy/array_output_buffer.h" | |
| 6 | |
| 7 #include "testing/gtest/include/gtest/gtest.h" | |
| 8 | |
| 9 namespace net { | |
| 10 namespace test { | |
| 11 | |
| 12 // This test verifies that ArrayOutputBuffer is initialized properly. | |
| 13 TEST(ArrayOutputBufferTest, InitializedFromArray) { | |
| 14 char array[100]; | |
| 15 ArrayOutputBuffer buffer(array, sizeof(array)); | |
| 16 EXPECT_EQ(sizeof(array), buffer.BytesFree()); | |
| 17 EXPECT_EQ((uint64_t)0, buffer.Size()); | |
| 18 EXPECT_EQ(array, buffer.Begin()); | |
| 19 } | |
| 20 | |
| 21 // This test verifies that Reset() causes an ArrayOutputBuffer's capacity and | |
| 22 // size to be reset to the initial state. | |
| 23 TEST(ArrayOutputBufferTest, WriteAndReset) { | |
| 24 char array[100]; | |
| 25 ArrayOutputBuffer buffer(array, sizeof(array)); | |
| 26 | |
| 27 // Let's write some bytes. | |
| 28 char* dst; | |
| 29 int size; | |
| 30 buffer.Next(&dst, &size); | |
| 31 ASSERT_GT(size, 1); | |
| 32 ASSERT_NE(nullptr, dst); | |
| 33 const int64_t written = size / 2; | |
| 34 memset(dst, 'x', written); | |
| 35 buffer.AdvanceWritePtr(written); | |
| 36 | |
| 37 // The buffer should be partially used. | |
| 38 EXPECT_EQ((uint64_t)size - written, buffer.BytesFree()); | |
| 39 EXPECT_EQ((uint64_t)written, buffer.Size()); | |
| 40 | |
| 41 buffer.Reset(); | |
| 42 | |
| 43 // After a reset, the buffer should regain its full capacity. | |
| 44 EXPECT_EQ(sizeof(array), buffer.BytesFree()); | |
| 45 EXPECT_EQ((uint64_t)0, buffer.Size()); | |
| 46 } | |
| 47 | |
| 48 } // namespace test | |
| 49 } // namespace net | |
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