blob: ecaaf69d2839bc15f5f58b2bea541cdd42273284 [file] [log] [blame]
// Copyright 2014 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 "content/browser/renderer_host/clipboard_message_filter.h"
#include <string.h>
#include "base/memory/ref_counted.h"
#include "base/process/process_handle.h"
#include "base/run_loop.h"
#include "content/public/test/test_browser_thread_bundle.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/base/test/test_clipboard.h"
#include "ui/gfx/geometry/size.h"
namespace content {
class ClipboardMessageFilterTest : public ::testing::Test {
protected:
ClipboardMessageFilterTest()
: filter_(new ClipboardMessageFilter),
clipboard_(ui::TestClipboard::CreateForCurrentThread()) {
filter_->set_peer_process_for_testing(base::Process::Current());
}
~ClipboardMessageFilterTest() override {
ui::Clipboard::DestroyClipboardForCurrentThread();
}
scoped_ptr<base::SharedMemory> CreateAndMapReadOnlySharedMemory(size_t size) {
scoped_ptr<base::SharedMemory> m = CreateReadOnlySharedMemory(size);
if (!m->Map(size))
return nullptr;
return m;
}
scoped_ptr<base::SharedMemory> CreateReadOnlySharedMemory(size_t size) {
scoped_ptr<base::SharedMemory> m(new base::SharedMemory());
base::SharedMemoryCreateOptions options;
options.size = size;
options.share_read_only = true;
if (!m->Create(options))
return nullptr;
return m;
}
void CallWriteImage(const gfx::Size& size,
base::SharedMemory* shared_memory) {
base::SharedMemoryHandle handle;
ASSERT_TRUE(shared_memory->GiveReadOnlyToProcess(
base::GetCurrentProcessHandle(), &handle));
CallWriteImageDirectly(size, handle);
}
// Prefer to use CallWriteImage() in tests.
void CallWriteImageDirectly(const gfx::Size& size,
base::SharedMemoryHandle handle) {
filter_->OnWriteImage(ui::CLIPBOARD_TYPE_COPY_PASTE, size, handle);
}
void CallCommitWrite() {
filter_->OnCommitWrite(ui::CLIPBOARD_TYPE_COPY_PASTE);
base::RunLoop().RunUntilIdle();
}
ui::Clipboard* clipboard() { return clipboard_; }
private:
const TestBrowserThreadBundle thread_bundle_;
const scoped_refptr<ClipboardMessageFilter> filter_;
ui::Clipboard* const clipboard_;
};
// Test that it actually works.
TEST_F(ClipboardMessageFilterTest, SimpleImage) {
static const uint32_t bitmap_data[] = {
0x33333333, 0xdddddddd, 0xeeeeeeee, 0x00000000,
0x88888888, 0x66666666, 0x55555555, 0xbbbbbbbb,
0x44444444, 0xaaaaaaaa, 0x99999999, 0x77777777,
0xffffffff, 0x11111111, 0x22222222, 0xcccccccc,
};
scoped_ptr<base::SharedMemory> shared_memory =
CreateAndMapReadOnlySharedMemory(sizeof(bitmap_data));
memcpy(shared_memory->memory(), bitmap_data, sizeof(bitmap_data));
CallWriteImage(gfx::Size(4, 4), shared_memory.get());
uint64_t sequence_number =
clipboard()->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE);
CallCommitWrite();
EXPECT_NE(sequence_number,
clipboard()->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE));
EXPECT_FALSE(clipboard()->IsFormatAvailable(
ui::Clipboard::GetPlainTextFormatType(), ui::CLIPBOARD_TYPE_COPY_PASTE));
EXPECT_TRUE(clipboard()->IsFormatAvailable(
ui::Clipboard::GetBitmapFormatType(), ui::CLIPBOARD_TYPE_COPY_PASTE));
SkBitmap actual = clipboard()->ReadImage(ui::CLIPBOARD_TYPE_COPY_PASTE);
SkAutoLockPixels locked(actual);
EXPECT_EQ(sizeof(bitmap_data), actual.getSize());
EXPECT_EQ(0,
memcmp(bitmap_data, actual.getAddr32(0, 0), sizeof(bitmap_data)));
}
// Test with a size that would overflow a naive 32-bit row bytes calculation.
TEST_F(ClipboardMessageFilterTest, ImageSizeOverflows32BitRowBytes) {
scoped_ptr<base::SharedMemory> shared_memory =
CreateReadOnlySharedMemory(0x20000000);
CallWriteImage(gfx::Size(0x20000000, 1), shared_memory.get());
uint64_t sequence_number =
clipboard()->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE);
CallCommitWrite();
EXPECT_EQ(sequence_number,
clipboard()->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE));
}
TEST_F(ClipboardMessageFilterTest, InvalidSharedMemoryHandle) {
CallWriteImageDirectly(gfx::Size(5, 5), base::SharedMemory::NULLHandle());
uint64_t sequence_number =
clipboard()->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE);
CallCommitWrite();
EXPECT_EQ(sequence_number,
clipboard()->GetSequenceNumber(ui::CLIPBOARD_TYPE_COPY_PASTE));
}
} // namespace content