No, that's exactly the point: with a statically-typed language, you wouldn't need a test for a non-existent property reference. The compiler will choke on the

No, that's exactly the point: with a statically-typed language, you wouldn't need a test for a non-existent property reference. The compiler will choke on the bad reference, and any test that uses/references the module in which the code resides will fail to compile. In other words, just simply trying to compile the complete codebase serves as a baseline "type/sanity test". The compiler will simply not allow you to produce an application containing such code.