sync: add CleanupDisabledTypesCommand to purge data pertaining to previously...

chrome/browser/sync/syncable/directory_backing_store_unittest.cc

 // Copyright (c) 2010 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 "testing/gtest/include/gtest/gtest.h"
 
 #include <string>
 
 #include "app/sql/connection.h"
 #include "app/sql/statement.h"
@@ skipping 1025 matching lines @@
     // In release mode, we expect the sync database to nuke itself and start
     // over if it detects invalid/corrupted data.
 #if defined(NDEBUG)
     EXPECT_TRUE(dbs->BeginLoad());
 #else
     EXPECT_DEATH(dbs->BeginLoad(), "sqlite error");
 #endif
   }
 }
 
+TEST_F(DirectoryBackingStoreTest, DeleteEntries) {
+  SetUpCurrentDatabaseAndCheckVersion();
+  scoped_ptr<DirectoryBackingStore> dbs(
+      new DirectoryBackingStore(GetUsername(), GetDatabasePath()));
+  dbs->BeginLoad();
+
+  MetahandlesIndex index;
+  dbs->LoadEntries(&index);
+  size_t initial_size = index.size();
+  ASSERT_LT(0U, initial_size) << "Test requires entries to delete.";
+  int64 first_to_die = (*index.begin())->ref(META_HANDLE);
+  MetahandleSet to_delete;
+  to_delete.insert(first_to_die);
+  EXPECT_TRUE(dbs->DeleteEntries(to_delete));
+
+  index.clear();
+  dbs->LoadEntries(&index);
+
+  EXPECT_EQ(initial_size - 1, index.size());
+  bool delete_failed = false;
+  for (MetahandlesIndex::iterator it = index.begin(); it != index.end();
+       ++it) {
+    if ((*it)->ref(META_HANDLE) == first_to_die) {
+      delete_failed = true;
+      break;
+    }
+  }
+  EXPECT_FALSE(delete_failed);
+
+  to_delete.clear();
+  for (MetahandlesIndex::iterator it = index.begin(); it != index.end();
+       ++it) {
+    to_delete.insert((*it)->ref(META_HANDLE));
+  }
+
+  EXPECT_TRUE(dbs->DeleteEntries(to_delete));
+
+  index.clear();
+  dbs->LoadEntries(&index);
+  EXPECT_EQ(0U, index.size());
+
+  dbs->EndLoad();
+  dbs->EndSave();
+}
+
 }  // namespace syncable