public void Indicate_It_Can_Extract_Only_Strings()
        {
            // arrange
            var extractor     = new StringExtractor();
            var stringBuilder = new ClrObjectBuilder();

            stringBuilder.WithType("System.String");
            var s = stringBuilder.Build();

            var builder = new ClrObjectBuilder();

            builder.WithType("System.Object");
            var o = builder.Build();

            // act
            // assert
            extractor.CanExtract(s, null).Should().BeTrue();
            extractor.CanExtract(o, null).Should().BeFalse();
        }