@Test
public void testGetAndRelease() {

	SenderCache cache = new SenderCache(senderFactory);
	final HttpClient httpClient = new HttpClient("someId", "someUrl", false);
	final GcmClient gcmClient = new GcmClient("someId", "someDeviceId");
	final DataSource source = new DataSource("someId", null, null, null);
	cache.get(source, httpClient);
	cache.get(source, httpClient);
	cache.get(source, gcmClient);
	cache.get(source, gcmClient);
	new Verifications() {{
		senderFactory.createHttpSender(source, httpClient); times = 1;
		senderFactory.createGcmSender(source, gcmClient); times = 1;
	}};
}