public void Hadles_keys_conflicts()
        {
            // given
            var a = new ObjectsCollections.Dictionary <int, string>(10);

            a.Add(1, "test");
            // when
            a.Add(11, "test1");
            // then
            Assert.True(a.ContainsKey(1));
            Assert.True(a.ContainsKey(11));
            Assert.False(a.ContainsKey(21));
            Assert.Equal(2, a.Count);
        }
        public void Keeps_a_new_element()
        {
            // given
            var a = new ObjectsCollections.Dictionary <int, string>();

            // when
            a.Add(1, "test");
            // then
            Assert.True(a.ContainsKey(1));
        }