mattbasta/amo-validator — comment on commit b7e6c807208710c1a5534775b45878c4cc8985d3
File: tests/test_compatibility.py line 752
By mattbasta:

`futureCompatError` does that automagically. By specifying `for_appversions=FX10_DEFINITION`, the error should only be raised for [10.0a1, 11.0a1). `futureCompatError` tests twice: once with and once without a version. It has to pass without the version and fail with it.