Reland: Move wtf_unittests to platform/wtf/.

third_party/WebKit/Source/wtf/typed_arrays/ArrayBufferBuilderTest.cpp

-/*
- * Copyright (C) 2013 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "wtf/typed_arrays/ArrayBufferBuilder.h"
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "wtf/Assertions.h"
-#include <limits.h>
-#include <string.h>
-
-namespace WTF {
-
-TEST(ArrayBufferBuilderTest, Constructor) {
-  ArrayBufferBuilder zeroBuilder(0);
-  EXPECT_EQ(0u, zeroBuilder.byteLength());
-  EXPECT_EQ(0u, zeroBuilder.capacity());
-
-  ArrayBufferBuilder smallBuilder(1024);
-  EXPECT_EQ(0u, zeroBuilder.byteLength());
-  EXPECT_EQ(1024u, smallBuilder.capacity());
-
-  ArrayBufferBuilder bigBuilder(2048);
-  EXPECT_EQ(0u, zeroBuilder.byteLength());
-  EXPECT_EQ(2048u, bigBuilder.capacity());
-}
-
-TEST(ArrayBufferBuilderTest, Append) {
-  const char data[] = "HelloWorld";
-  size_t dataSize = sizeof(data) - 1;
-
-  ArrayBufferBuilder builder(2 * dataSize);
-
-  EXPECT_EQ(dataSize, builder.append(data, dataSize));
-  EXPECT_EQ(dataSize, builder.byteLength());
-  EXPECT_EQ(dataSize * 2, builder.capacity());
-
-  EXPECT_EQ(dataSize, builder.append(data, dataSize));
-  EXPECT_EQ(dataSize * 2, builder.byteLength());
-  EXPECT_EQ(dataSize * 2, builder.capacity());
-
-  EXPECT_EQ(dataSize, builder.append(data, dataSize));
-  EXPECT_EQ(dataSize * 3, builder.byteLength());
-  EXPECT_GE(builder.capacity(), dataSize * 3);
-}
-
-TEST(ArrayBufferBuilderTest, AppendRepeatedly) {
-  const char data[] = "HelloWorld";
-  size_t dataSize = sizeof(data) - 1;
-
-  ArrayBufferBuilder builder(37);  // Some number coprime with dataSize.
-
-  for (size_t i = 1; i < 1000U; ++i) {
-    EXPECT_EQ(dataSize, builder.append(data, dataSize));
-    EXPECT_EQ(dataSize * i, builder.byteLength());
-    EXPECT_GE(builder.capacity(), dataSize * i);
-  }
-}
-
-TEST(ArrayBufferBuilderTest, DefaultConstructorAndAppendRepeatedly) {
-  const char data[] = "HelloWorld";
-  size_t dataSize = sizeof(data) - 1;
-
-  ArrayBufferBuilder builder;
-
-  for (size_t i = 1; i < 4000U; ++i) {
-    EXPECT_EQ(dataSize, builder.append(data, dataSize));
-    EXPECT_EQ(dataSize * i, builder.byteLength());
-    EXPECT_GE(builder.capacity(), dataSize * i);
-  }
-}
-
-TEST(ArrayBufferBuilderTest, AppendFixedCapacity) {
-  const char data[] = "HelloWorld";
-  size_t dataSize = sizeof(data) - 1;
-
-  ArrayBufferBuilder builder(15);
-  builder.setVariableCapacity(false);
-
-  EXPECT_EQ(dataSize, builder.append(data, dataSize));
-  EXPECT_EQ(dataSize, builder.byteLength());
-  EXPECT_EQ(15u, builder.capacity());
-
-  EXPECT_EQ(5u, builder.append(data, dataSize));
-  EXPECT_EQ(15u, builder.byteLength());
-  EXPECT_EQ(15u, builder.capacity());
-
-  EXPECT_EQ(0u, builder.append(data, dataSize));
-  EXPECT_EQ(15u, builder.byteLength());
-  EXPECT_EQ(15u, builder.capacity());
-}
-
-TEST(ArrayBufferBuilderTest, ToArrayBuffer) {
-  const char data1[] = "HelloWorld";
-  size_t data1Size = sizeof(data1) - 1;
-
-  const char data2[] = "GoodbyeWorld";
-  size_t data2Size = sizeof(data2) - 1;
-
-  ArrayBufferBuilder builder(1024);
-  builder.append(data1, data1Size);
-  builder.append(data2, data2Size);
-
-  const char expected[] = "HelloWorldGoodbyeWorld";
-  size_t expectedSize = sizeof(expected) - 1;
-
-  RefPtr<ArrayBuffer> result = builder.toArrayBuffer();
-  ASSERT_EQ(data1Size + data2Size, result->byteLength());
-  ASSERT_EQ(expectedSize, result->byteLength());
-  EXPECT_EQ(0, memcmp(expected, result->data(), expectedSize));
-}
-
-TEST(ArrayBufferBuilderTest, ToArrayBufferSameAddressIfExactCapacity) {
-  const char data[] = "HelloWorld";
-  size_t dataSize = sizeof(data) - 1;
-
-  ArrayBufferBuilder builder(dataSize);
-  builder.append(data, dataSize);
-
-  RefPtr<ArrayBuffer> result1 = builder.toArrayBuffer();
-  RefPtr<ArrayBuffer> result2 = builder.toArrayBuffer();
-  EXPECT_EQ(result1.get(), result2.get());
-}
-
-TEST(ArrayBufferBuilderTest, ToString) {
-  const char data1[] = "HelloWorld";
-  size_t data1Size = sizeof(data1) - 1;
-
-  const char data2[] = "GoodbyeWorld";
-  size_t data2Size = sizeof(data2) - 1;
-
-  ArrayBufferBuilder builder(1024);
-  builder.append(data1, data1Size);
-  builder.append(data2, data2Size);
-
-  const char expected[] = "HelloWorldGoodbyeWorld";
-  size_t expectedSize = sizeof(expected) - 1;
-
-  String result = builder.toString();
-  EXPECT_EQ(expectedSize, result.length());
-  for (unsigned i = 0; i < result.length(); ++i)
-    EXPECT_EQ(expected[i], result[i]);
-}
-
-TEST(ArrayBufferBuilderTest, ShrinkToFitNoAppend) {
-  ArrayBufferBuilder builder(1024);
-  EXPECT_EQ(1024u, builder.capacity());
-  builder.shrinkToFit();
-  EXPECT_EQ(0u, builder.byteLength());
-  EXPECT_EQ(0u, builder.capacity());
-}
-
-TEST(ArrayBufferBuilderTest, ShrinkToFit) {
-  const char data[] = "HelloWorld";
-  size_t dataSize = sizeof(data) - 1;
-
-  ArrayBufferBuilder builder(32);
-
-  EXPECT_EQ(dataSize, builder.append(data, dataSize));
-  EXPECT_EQ(dataSize, builder.byteLength());
-  EXPECT_EQ(32u, builder.capacity());
-
-  builder.shrinkToFit();
-  EXPECT_EQ(dataSize, builder.byteLength());
-  EXPECT_EQ(dataSize, builder.capacity());
-}
-
-TEST(ArrayBufferBuilderTest, ShrinkToFitFullyUsed) {
-  const char data[] = "HelloWorld";
-  size_t dataSize = sizeof(data) - 1;
-
-  ArrayBufferBuilder builder(dataSize);
-  const void* internalAddress = builder.data();
-
-  EXPECT_EQ(dataSize, builder.append(data, dataSize));
-  EXPECT_EQ(dataSize, builder.byteLength());
-  EXPECT_EQ(dataSize, builder.capacity());
-
-  builder.shrinkToFit();
-  // Reallocation should not happen.
-  EXPECT_EQ(internalAddress, builder.data());
-  EXPECT_EQ(dataSize, builder.byteLength());
-  EXPECT_EQ(dataSize, builder.capacity());
-}
-
-TEST(ArrayBufferBuilderTest, ShrinkToFitAfterGrowth) {
-  const char data[] = "HelloWorld";
-  size_t dataSize = sizeof(data) - 1;
-
-  ArrayBufferBuilder builder(5);
-
-  EXPECT_EQ(dataSize, builder.append(data, dataSize));
-  EXPECT_GE(builder.capacity(), dataSize);
-  builder.shrinkToFit();
-  EXPECT_EQ(dataSize, builder.byteLength());
-  EXPECT_EQ(dataSize, builder.capacity());
-}
-
-}  // namespace WTF