public void GetByIdOrDefault_WhenSnpExists_ReturnsSnpModel_Test()
        {
            var expected = TestSnpModel.Create();

            var collection = new SnpModelCollection(new[] { expected });
            var actual     = collection.GetByIdOrDefault(expected.Id);

            Assert.Same(expected, actual);
        }
        public void GetByIdOrDefault_WhenSnpDoesNotExists_ReturnsNull_Test()
        {
            var collection = new SnpModelCollection(new SnpModel[0]);

            Assert.Null(collection.GetByIdOrDefault("rsXXXX"));
        }