public void Clear() { // Arrange Fictionary <int, string, GenericEqualityComparer <int> > fictionary = SampleDictionary.ToFictionary(); foreach (KeyValuePair <int, string> kv in SampleDictionary) { Assert.True(fictionary.ContainsKey(kv.Key)); } // Act fictionary.Clear(); // Assert Assert.Empty(fictionary); foreach (KeyValuePair <int, string> kv in SampleDictionary) { Assert.False(fictionary.ContainsKey(kv.Key)); } }