[BlobStorage] Implementing disk.

content/browser/blob_storage/blob_slice_unittest.cc

 // Copyright 2016 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 "storage/browser/blob/blob_storage_context.h"
 
 #include <memory>
 
 #include "base/files/file_path.h"
 #include "storage/browser/blob/blob_data_builder.h"
@@ skipping 30 matching lines @@
   scoped_refptr<ShareableBlobDataItem> CreateFileItem(size_t offset,
                                                       size_t size) {
     std::unique_ptr<DataElement> element(new DataElement());
     element->SetToFilePathRange(base::FilePath(FILE_PATH_LITERAL("kFakePath")),
                                 offset, size, base::Time::Max());
     return scoped_refptr<ShareableBlobDataItem>(new ShareableBlobDataItem(
         new BlobDataItem(std::move(element)),
         ShareableBlobDataItem::POPULATED_WITHOUT_QUOTA));
   };
 
+  scoped_refptr<ShareableBlobDataItem> CreateTempFileItem(size_t offset,
+                                                          size_t size) {
+    std::unique_ptr<DataElement> element(new DataElement());
+    element->SetToFilePathRange(BlobDataBuilder::GetFutureFileItemPath(0),
+                                offset, size, base::Time());
+    return scoped_refptr<ShareableBlobDataItem>(
+        new ShareableBlobDataItem(new BlobDataItem(std::move(element)),
+                                  ShareableBlobDataItem::QUOTA_NEEDED));
+  };
+
   void ExpectFirstSlice(const BlobSlice& slice,
                         scoped_refptr<ShareableBlobDataItem> source_item,
                         size_t first_item_slice_offset,
                         size_t size) {
     EXPECT_TRUE(slice.first_source_item);
     EXPECT_EQ(first_item_slice_offset, slice.first_item_slice_offset);
 
     ASSERT_LE(1u, slice.dest_items.size());
     const DataElement& dest_element =
         slice.dest_items[0]->item()->data_element();
@@ skipping 14 matching lines @@
         slice.dest_items.back()->item()->data_element();
 
     EXPECT_EQ(DataElement::TYPE_BYTES_DESCRIPTION, dest_element.type());
     EXPECT_EQ(static_cast<uint64_t>(size), dest_element.length());
 
     EXPECT_EQ(*source_item, *slice.last_source_item);
   }
 };
 
 TEST_F(BlobSliceTest, FullItem) {
-  const std::string kBlobUUID = "kId";
   const size_t kSize = 5u;
 
   BlobEntry data(kType, kDisposition);
   scoped_refptr<ShareableBlobDataItem> item = CreateDataItem(kSize);
   data.AppendSharedBlobItem(item);
 
   BlobSlice slice(data, 0, 5);
   EXPECT_EQ(0u, slice.copying_memory_size.ValueOrDie());
   EXPECT_FALSE(slice.first_source_item);
   EXPECT_FALSE(slice.last_source_item);
   EXPECT_FALSE(slice.first_source_item);
   EXPECT_FALSE(slice.last_source_item);
   ASSERT_EQ(1u, slice.dest_items.size());
   EXPECT_EQ(item, slice.dest_items[0]);
 }
 
 TEST_F(BlobSliceTest, SliceSingleItem) {
-  const std::string kBlobUUID = "kId";
   const size_t kSize = 5u;
 
   BlobEntry data(kType, kDisposition);
   scoped_refptr<ShareableBlobDataItem> item = CreateDataItem(kSize);
   data.AppendSharedBlobItem(item);
 
   BlobSlice slice(data, 1, 3);
   EXPECT_EQ(3u, slice.copying_memory_size.ValueOrDie());
   EXPECT_FALSE(slice.last_source_item);
   ExpectFirstSlice(slice, item, 1, 3);
   ASSERT_EQ(1u, slice.dest_items.size());
 }
 
 TEST_F(BlobSliceTest, SliceSingleLastItem) {
-  const std::string kBlobUUID = "kId";
   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);
 
   BlobSlice slice(data, 6, 2);
   EXPECT_EQ(2u, slice.copying_memory_size.ValueOrDie());
   ExpectFirstSlice(slice, item2, 1, 2);
   ASSERT_EQ(1u, slice.dest_items.size());
 }
 
 TEST_F(BlobSliceTest, SliceAcrossTwoItems) {
-  const std::string kBlobUUID = "kId";
   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);
 
   BlobSlice slice(data, 4, 10);
   EXPECT_EQ(10u, slice.copying_memory_size.ValueOrDie());
   ExpectFirstSlice(slice, item1, 4, 1);
   ExpectLastSlice(slice, item2, 9);
   ASSERT_EQ(2u, slice.dest_items.size());
 }
 
 TEST_F(BlobSliceTest, SliceFileAndLastItem) {
-  const std::string kBlobUUID = "kId";
   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);
 
   BlobSlice slice(data, 4, 2);
   EXPECT_EQ(1u, slice.copying_memory_size.ValueOrDie());
   EXPECT_FALSE(slice.first_source_item);
   ExpectLastSlice(slice, item2, 1);
   ASSERT_EQ(2u, slice.dest_items.size());
 
   EXPECT_EQ(*CreateFileItem(4u, 1u)->item(), *slice.dest_items[0]->item());
 }
 
 TEST_F(BlobSliceTest, SliceAcrossLargeItem) {
-  const std::string kBlobUUID = "kId";
   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);
 
   BlobSlice slice(data, 2, 20);
   EXPECT_EQ(3u + 7u, slice.copying_memory_size.ValueOrDie());
   ExpectFirstSlice(slice, item1, 2, 3);
   ExpectLastSlice(slice, item3, 7);
   ASSERT_EQ(3u, slice.dest_items.size());
 
   EXPECT_EQ(*item2, *slice.dest_items[1]);
 }
 
+TEST_F(BlobSliceTest, SliceTempFileItem) {
+  BlobEntry data(kType, kDisposition);
+  scoped_refptr<ShareableBlobDataItem> item1 = CreateTempFileItem(1u, 10u);
+  data.AppendSharedBlobItem(item1);
+  BlobSlice slice(data, 2, 5);
+  EXPECT_EQ(0u, slice.copying_memory_size.ValueOrDie());
+  EXPECT_TRUE(slice.first_source_item);
+  EXPECT_EQ(2u, slice.first_item_slice_offset);
+  ASSERT_LE(1u, slice.dest_items.size());
+  const DataElement& dest_element = slice.dest_items[0]->item()->data_element();
+  EXPECT_EQ(DataElement::TYPE_FILE, dest_element.type());
+  EXPECT_EQ(static_cast<uint64_t>(5), dest_element.length());
+  EXPECT_EQ(*item1, *slice.first_source_item);
+  ASSERT_EQ(1u, slice.dest_items.size());
+}
+
 }  // namespace storage