public void UsingValuesSinksConverter() { _converterSink.Setup(m => m.Sink(It.IsAny <DictionaryConverter <string> >())).Verifiable(); _instanceUnderTest.UsingValues(new[] { new KeyValuePair <string, string>("key", "value") }, EqualityComparer <string> .Default); _converterSink.Verify(m => m.Sink(It.IsAny <DictionaryConverter <string> >()), Times.Once); }