blob: b44047b047193b8365c5aba0f27ad9a952d8bd0a [file] [log] [blame]
// Copyright (c) 2011 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 "ppapi/tests/test_buffer.h"
#include "ppapi/c/dev/ppb_buffer_dev.h"
#include "ppapi/cpp/dev/buffer_dev.h"
#include "ppapi/cpp/graphics_2d.h"
#include "ppapi/cpp/instance.h"
#include "ppapi/cpp/module.h"
#include "ppapi/tests/testing_instance.h"
bool TestBuffer::Init() {
buffer_interface_ = reinterpret_cast<PPB_Buffer_Dev const*>(
return !!buffer_interface_;
void TestBuffer::RunTest() {
instance_->LogTest("InvalidSize", TestInvalidSize());
instance_->LogTest("InitToZero", TestInitToZero());
instance_->LogTest("IsBuffer", TestIsBuffer());
instance_->LogTest("BasicLifecyle", TestBasicLifeCycle());
std::string TestBuffer::TestInvalidSize() {
pp::Buffer_Dev zero_size(instance_, 0);
if (!zero_size.is_null())
return "Zero size accepted";
std::string TestBuffer::TestInitToZero() {
pp::Buffer_Dev buffer(instance_, 100);
if (buffer.is_null())
return "Could not create buffer";
if (buffer.size() != 100)
return "Buffer size not as expected";
// Now check that everything is 0.
unsigned char* bytes = static_cast<unsigned char *>(;
for (uint32_t index = 0; index < buffer.size(); index++) {
if (bytes[index] != 0)
return "Buffer isn't entirely zero";
std::string TestBuffer::TestIsBuffer() {
// Test that a NULL resource isn't a buffer.
pp::Resource null_resource;
if (buffer_interface_->IsBuffer(null_resource.pp_resource()))
return "Null resource was reported as a valid buffer";
// Make another resource type and test it.
const int w = 16, h = 16;
pp::Graphics2D device(instance_, pp::Size(w, h), true);
if (device.is_null())
return "Couldn't create device context";
if (buffer_interface_->IsBuffer(device.pp_resource()))
return "Device context was reported as a buffer";
// Make a valid buffer.
pp::Buffer_Dev buffer(instance_, 100);
if (buffer.is_null())
return "Couldn't create buffer";
if (!buffer_interface_->IsBuffer(buffer.pp_resource()))
return "Buffer should be identified as a buffer";
std::string TestBuffer::TestBasicLifeCycle() {
enum { kBufferSize = 100 };
pp::Buffer_Dev *buffer = new pp::Buffer_Dev(instance_, kBufferSize);
if (buffer->is_null() ||
!buffer_interface_->IsBuffer(buffer->pp_resource()) ||
buffer->size() != kBufferSize) {
return "Error creating buffer (earlier test should have failed)";
// Test that the buffer got created & mapped.
if (buffer->data() == NULL)
return "Failed to Map() buffer";
// Test that the buffer is writeable.
char* data = static_cast<char*>(buffer->data());
for (int i = 0; i < kBufferSize; ++i)
data[i] = 'X';
// Implicitly test that the copy constructor doesn't cause a double-unmap on
// delete.
pp::Buffer_Dev* copy = new pp::Buffer_Dev(*buffer);
// Implicitly test that destroying the buffer doesn't encounter a fatal error
// in Unmap.
delete buffer;
// Test that we can still write to copy's copy of the data.
char* copy_data = static_cast<char*>(copy->data());
for (int i = 0; i < kBufferSize; ++i)
copy_data[i] = 'Y';
delete copy;