Added CacheEntry implementation.

net/disk_cache/flash/cache_entry_unittest.cc

Index: net/disk_cache/flash/cache_entry_unittest.cc
diff --git a/net/disk_cache/flash/cache_entry_unittest.cc b/net/disk_cache/flash/cache_entry_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..657d9e2d5a10cfcc806f1d860708434a61d35d8e
--- /dev/null
+++ b/net/disk_cache/flash/cache_entry_unittest.cc
@@ -0,0 +1,56 @@
+// Copyright (c) 2012 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 "base/memory/scoped_ptr.h"
+#include "net/base/io_buffer.h"
+#include "net/disk_cache/disk_cache_test_util.h"
+#include "net/disk_cache/flash/cache_entry.h"
+#include "net/disk_cache/flash/flash_cache_test_base.h"
+#include "net/disk_cache/flash/format.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using disk_cache::CacheEntry;
+
+TEST_F(FlashCacheTest, CacheEntryEmpty) {

[rvargas (doing something else), 2012/12/05 00:21:01]

nit: could you add a one liner stating what this is testing?

[agayev, 2012/12/05 16:53:19]

Done.

+  scoped_ptr<CacheEntry> entry(new CacheEntry(log_structured_store_.get()));
+  EXPECT_TRUE(entry->Init());
+  EXPECT_TRUE(entry->Close());
+
+  entry.reset(new CacheEntry(log_structured_store_.get(), entry->id()));
+  EXPECT_TRUE(entry->Init());
+
+  for (int i = 0; i < disk_cache::kFlashCacheEntryNumStreams; ++i) {
+    EXPECT_EQ(0, entry->GetDataSize(i));
+    EXPECT_EQ(0, entry->ReadData(i, 0, NULL, 1024));

[rvargas (doing something else), 2012/12/05 00:21:01]

There could be multiple reasons for this to return 0 so I'm not sure which one
you want to test... passing no buffer and 1024 as size looks like a bug.

[agayev, 2012/12/05 16:53:19]

I want to test that reading from an entry with empty streams returns 0, but
didn't want to create an artificial buffers for that.  Added the buffer.

+  }
+  EXPECT_TRUE(entry->Close());
+}
+
+TEST_F(FlashCacheTest, CacheEntryWriteRead) {
+  scoped_ptr<CacheEntry> entry(new CacheEntry(log_structured_store_.get()));
+  EXPECT_TRUE(entry->Init());
+
+  int sizes[disk_cache::kFlashCacheEntryNumStreams] = {333, 444, 555, 666};
+  scoped_refptr<net::IOBuffer> buffers[disk_cache::kFlashCacheEntryNumStreams];
+
+  for (int i = 0; i < disk_cache::kFlashCacheEntryNumStreams; ++i) {
+    buffers[i] = new net::IOBuffer(sizes[i]);
+    CacheTestFillBuffer(buffers[i]->data(), sizes[i], false);
+    EXPECT_EQ(sizes[i], entry->WriteData(i, 0, buffers[i], sizes[i]));
+  }
+  EXPECT_TRUE(entry->Close());
+
+  int32 id = entry->id();
+  entry.reset(new CacheEntry(log_structured_store_.get(), id));
+  EXPECT_TRUE(entry->Init());
+
+  for (int i = 0; i < disk_cache::kFlashCacheEntryNumStreams; ++i) {
+    EXPECT_EQ(sizes[i], entry->GetDataSize(i));
+    scoped_refptr<net::IOBuffer> buffer(new net::IOBuffer(sizes[i]));
+    EXPECT_EQ(sizes[i], entry->ReadData(i, 0, buffer, sizes[i]));
+    EXPECT_EQ(0, memcmp(buffers[i]->data(), buffer->data(), sizes[i]));
+  }
+  EXPECT_TRUE(entry->Close());
+  EXPECT_EQ(id, entry->id());
+}