public void Cache_key_comparison_when_null_index_map()
        {
            var typedRelationalValueBufferFactoryFactory
                = new TypedRelationalValueBufferFactoryFactory();

            var factory1
                = typedRelationalValueBufferFactoryFactory.Create(new[] { typeof(string) }, new[] { 42 });

            Assert.NotNull(factory1);

            var factory2
                = typedRelationalValueBufferFactoryFactory.Create(new[] { typeof(string) }, null);

            Assert.NotSame(factory1, factory2);
        }
        public void Cache_key_comparison_when_null_index_map()
        {
            var typedRelationalValueBufferFactoryFactory
                = new TypedRelationalValueBufferFactoryFactory();

            var factory1
                = typedRelationalValueBufferFactoryFactory.Create(new[] { typeof(string) }, new[] { 42 });

            Assert.NotNull(factory1);

            var factory2
                = typedRelationalValueBufferFactoryFactory.Create(new[] { typeof(string) }, null);

            Assert.NotSame(factory1, factory2);
        }