grab bag of misc WASM unit tests for old defects

[spoonincode]

Change Description

grab bag of misc WASM unit tests for defects fixed years ago.

Change Type

Select ONE:

• [ ] Documentation

• [ ] Stability bug fix

• [x] Other

• [ ] Other - special case

Testing Changes

Select ANY that apply:

• [x] New Tests

• [ ] Existing Tests

• [ ] Test Framework

• [ ] CI System

• [ ] Other

Consensus Changes

• [ ] Consensus Changes

API Changes

• [ ] API Changes

Documentation Additions

• [ ] Documentation Additions