public void memcacheIncrementAll() throws Exception {
tester.setUp();
MemcacheService ms = MemcacheServiceFactory.getMemcacheService();
Map<Object, Long> offsets = new HashMap<Object, Long>();
offsets.put("aaa", 1L);
ms.incrementAll(offsets, 1L);
tester.tearDown();
ApiProxy.setDelegate(AppEngineTester.apiProxyLocalImpl);
ApiProxy.setEnvironmentForCurrentThread(new TestEnvironment());
assertThat(ms.contains("aaa"), is(false));
}