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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "storage/browser/blob/blob_storage_context.h"
#include <memory>
#include "base/files/file_path.h"
#include "storage/browser/blob/blob_data_builder.h"
#include "storage/browser/blob/blob_data_item.h"
#include "storage/browser/blob/blob_entry.h"
#include "storage/browser/blob/shareable_blob_data_item.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace storage {
namespace {
const char kType[] = "type";
const char kDisposition[] = "";
const char kId[] = "uuid";
} // namespace
// Historically BlobSlice was a separate class. All that functionality
// was merged into BlobDataBuilder though, so now this test just tests that
// subset of the BlobDataBuilder functionality.
class BlobSliceTest : public testing::Test {
protected:
BlobSliceTest() = default;
~BlobSliceTest() override = default;
scoped_refptr<ShareableBlobDataItem> CreateDataItem(size_t size) {
std::vector<uint8_t> bytes(size);
for (size_t i = 0; i < size; ++i)
bytes[i] = i;
return scoped_refptr<ShareableBlobDataItem>(new ShareableBlobDataItem(
BlobDataItem::CreateBytes(bytes), ShareableBlobDataItem::QUOTA_NEEDED));
}
scoped_refptr<ShareableBlobDataItem> CreateFileItem(size_t offset,
size_t size) {
return scoped_refptr<ShareableBlobDataItem>(new ShareableBlobDataItem(
BlobDataItem::CreateFile(base::FilePath(FILE_PATH_LITERAL("kFakePath")),
offset, size, base::Time::Max()),
ShareableBlobDataItem::POPULATED_WITHOUT_QUOTA));
}
scoped_refptr<ShareableBlobDataItem> CreateTempFileItem(size_t offset,
size_t size) {
return scoped_refptr<ShareableBlobDataItem>(new ShareableBlobDataItem(
BlobDataItem::CreateFutureFile(offset, size, 0),
ShareableBlobDataItem::QUOTA_NEEDED));
}
void Slice(BlobDataBuilder& builder,
BlobEntry* source,
uint64_t slice_offset,
uint64_t slice_size) {
builder.SliceBlob(source, slice_offset, slice_size);
}
void ExpectSlice(scoped_refptr<ShareableBlobDataItem> dest_item,
const BlobEntry::ItemCopyEntry& copy,
scoped_refptr<ShareableBlobDataItem> source_item,
size_t slice_offset,
size_t size) {
EXPECT_EQ(source_item, copy.source_item);
EXPECT_EQ(slice_offset, copy.source_item_offset);
EXPECT_EQ(dest_item, copy.dest_item);
EXPECT_EQ(size, dest_item->item()->length());
EXPECT_EQ(ShareableBlobDataItem::QUOTA_NEEDED, dest_item->state());
EXPECT_EQ(BlobDataItem::Type::kBytesDescription, dest_item->item()->type());
}
};
TEST_F(BlobSliceTest, FullItem) {
const size_t kSize = 5u;
BlobEntry data(kType, kDisposition);
scoped_refptr<ShareableBlobDataItem> item = CreateDataItem(kSize);
data.AppendSharedBlobItem(item);
BlobDataBuilder builder(kId);
Slice(builder, &data, 0, 5);
EXPECT_TRUE(builder.copies().empty());
ASSERT_EQ(1u, builder.items().size());
EXPECT_EQ(item, builder.items()[0]);
}
TEST_F(BlobSliceTest, SliceSingleItem) {
const size_t kSize = 5u;
BlobEntry data(kType, kDisposition);
scoped_refptr<ShareableBlobDataItem> item = CreateDataItem(kSize);
data.AppendSharedBlobItem(item);
BlobDataBuilder builder(kId);
Slice(builder, &data, 1, 3);
ASSERT_EQ(1u, builder.copies().size());
ASSERT_EQ(1u, builder.items().size());
ExpectSlice(builder.items()[0], builder.copies()[0], item, 1, 3);
}
TEST_F(BlobSliceTest, SliceSingleLastItem) {
const size_t kSize1 = 5u;
const size_t kSize2 = 10u;
BlobEntry data(kType, kDisposition);
scoped_refptr<ShareableBlobDataItem> item1 = CreateDataItem(kSize1);
scoped_refptr<ShareableBlobDataItem> item2 = CreateDataItem(kSize2);
data.AppendSharedBlobItem(item1);
data.AppendSharedBlobItem(item2);
BlobDataBuilder builder(kId);
Slice(builder, &data, 6, 2);
ASSERT_EQ(1u, builder.copies().size());
ASSERT_EQ(1u, builder.items().size());
ExpectSlice(builder.items()[0], builder.copies()[0], item2, 1, 2);
}
TEST_F(BlobSliceTest, SliceAcrossTwoItems) {
const size_t kSize1 = 5u;
const size_t kSize2 = 10u;
BlobEntry data(kType, kDisposition);
scoped_refptr<ShareableBlobDataItem> item1 = CreateDataItem(kSize1);
scoped_refptr<ShareableBlobDataItem> item2 = CreateDataItem(kSize2);
data.AppendSharedBlobItem(item1);
data.AppendSharedBlobItem(item2);
BlobDataBuilder builder(kId);
Slice(builder, &data, 4, 10);
ASSERT_EQ(2u, builder.copies().size());
ASSERT_EQ(2u, builder.items().size());
ExpectSlice(builder.items()[0], builder.copies()[0], item1, 4, 1);
ExpectSlice(builder.items()[1], builder.copies()[1], item2, 0, 9);
}
TEST_F(BlobSliceTest, SliceFileAndLastItem) {
const size_t kSize1 = 5u;
const size_t kSize2 = 10u;
BlobEntry data(kType, kDisposition);
scoped_refptr<ShareableBlobDataItem> item1 = CreateFileItem(0u, kSize1);
scoped_refptr<ShareableBlobDataItem> item2 = CreateDataItem(kSize2);
data.AppendSharedBlobItem(item1);
data.AppendSharedBlobItem(item2);
BlobDataBuilder builder(kId);
Slice(builder, &data, 4, 2);
ASSERT_EQ(1u, builder.copies().size());
ASSERT_EQ(2u, builder.items().size());
EXPECT_EQ(*CreateFileItem(4u, 1u)->item(), *builder.items()[0]->item());
ExpectSlice(builder.items()[1], builder.copies()[0], item2, 0, 1);
}
TEST_F(BlobSliceTest, SliceAcrossLargeItem) {
const size_t kSize1 = 5u;
const size_t kSize2 = 10u;
const size_t kSize3 = 10u;
BlobEntry data(kType, kDisposition);
scoped_refptr<ShareableBlobDataItem> item1 = CreateDataItem(kSize1);
scoped_refptr<ShareableBlobDataItem> item2 = CreateFileItem(0u, kSize2);
scoped_refptr<ShareableBlobDataItem> item3 = CreateDataItem(kSize3);
data.AppendSharedBlobItem(item1);
data.AppendSharedBlobItem(item2);
data.AppendSharedBlobItem(item3);
BlobDataBuilder builder(kId);
Slice(builder, &data, 2, 20);
ASSERT_EQ(2u, builder.copies().size());
ASSERT_EQ(3u, builder.items().size());
ExpectSlice(builder.items()[0], builder.copies()[0], item1, 2, 3);
EXPECT_EQ(item2, builder.items()[1]);
ExpectSlice(builder.items()[2], builder.copies()[1], item3, 0, 7);
}
TEST_F(BlobSliceTest, SliceTempFileItem) {
BlobEntry data(kType, kDisposition);
scoped_refptr<ShareableBlobDataItem> item1 = CreateTempFileItem(1u, 10u);
data.AppendSharedBlobItem(item1);
BlobDataBuilder builder(kId);
Slice(builder, &data, 2, 5);
ASSERT_EQ(1u, builder.copies().size());
ASSERT_EQ(1u, builder.items().size());
auto dest_item = builder.items()[0];
EXPECT_EQ(item1, builder.copies()[0].source_item);
EXPECT_EQ(2u, builder.copies()[0].source_item_offset);
EXPECT_EQ(dest_item, builder.copies()[0].dest_item);
EXPECT_EQ(5u, dest_item->item()->length());
EXPECT_EQ(ShareableBlobDataItem::POPULATED_WITHOUT_QUOTA, dest_item->state());
EXPECT_EQ(BlobDataItem::Type::kFile, dest_item->item()->type());
}
} // namespace storage
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