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GettingStartedOnTesting.wiki

diff --git a/GettingStartedOnTesting.wiki b/GettingStartedOnTesting.wiki
index 2e8c217..3dfe9b0 100644
--- a/GettingStartedOnTesting.wiki
+++ b/GettingStartedOnTesting.wiki
@@ -108,7 +108,7 @@
   * The email of the user account of the test environment is test@example.com and the user is logged on automatically if the user account (test@example.com) is in Melange User datastore.
 == Datastore ==
   * apiproxy_stub_map.apiproxy.RegisterStub('datastore', datastore_file_stub.DatastoreFileStub('test-app-run', None, None))
-  * It is a memory based datastore which is cleared after each test case.
+  * It is a memory based datastore which is cleared after each test case, so it is not necessary to clear it manually after each test.
 == Memcache ==
   * apiproxy_stub_map.apiproxy.RegisterStub('memcache', memcache_stub.MemcacheServiceStub())
   * It keeps all data in the local process' memory.