Index initialization improvements for Simple Cache.

net/disk_cache/simple/simple_index_unittest.cc

 // Copyright (c) 2013 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/files/scoped_temp_dir.h"
 #include "base/hash.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/pickle.h"
 #include "base/sha1.h"
@@ skipping 179 matching lines @@
   EXPECT_EQ(14U, index()->cache_size_);
   {
     scoped_ptr<SimpleIndexLoadResult> result(new SimpleIndexLoadResult());
     result->did_load = true;
     index()->MergeInitializingSet(result.Pass());
   }
   EXPECT_EQ(14U, index()->cache_size_);
   {
     scoped_ptr<SimpleIndexLoadResult> result(new SimpleIndexLoadResult());
     result->did_load = true;
-    const uint64 hash_key = simple_util::GetEntryHashKey("eleven");
+    const uint64 new_hash_key = simple_util::GetEntryHashKey("eleven");
     result->entries.insert(
-        std::make_pair(hash_key, EntryMetadata(base::Time::Now(), 11)));
+        std::make_pair(new_hash_key, EntryMetadata(base::Time::Now(), 11)));
+    const uint64 redundant_hash_key = simple_util::GetEntryHashKey("seven");
+    result->entries.insert(std::make_pair(redundant_hash_key,
+                                          EntryMetadata(base::Time::Now(), 7)));
     index()->MergeInitializingSet(result.Pass());
   }
-  EXPECT_EQ(25U, index()->cache_size_);
+  EXPECT_EQ(2U + 5U + 7U + 11U, index()->cache_size_);
 }
 
 // State of index changes as expected with an insert and a remove.
 TEST_F(SimpleIndexTest, BasicInsertRemove) {
   // Confirm blank state.
   EntryMetadata metadata;
   EXPECT_EQ(base::Time(), metadata.GetLastUsedTime());
   EXPECT_EQ(0ul, metadata.GetEntrySize());
 
   // Confirm state after insert.
@@ skipping 353 matching lines @@
   WaitForTimeChange();
   EXPECT_EQ(expected_trigger, index()->write_to_disk_timer_.desired_run_time());
   index()->Insert("key2");
   index()->UpdateEntrySize("key2", 40);
   EXPECT_TRUE(index()->write_to_disk_timer_.IsRunning());
   EXPECT_LT(expected_trigger, index()->write_to_disk_timer_.desired_run_time());
   index()->write_to_disk_timer_.Stop();
 }
 
 }  // namespace disk_cache