Small bugfix in resilience validation

[gadial]

Summary

Fixes a bug in ResilienceOptionsV2 where validation misses a corner case where pec_mitigation is False although pec options were passed.

Details and comments

The bug results from the check any(asdict(self.pec).values()) which attempts to deduce whether any pec options were passed. Since some valid options are treated as False by Python, this check might fail. An example was added to the unit tests:

{"resilience": {"pec": {"max_overhead": None, "noise_gain": 0}}},

Where both the None and the 0 values are valid options (requiring pec_mitigation=True) but both are treated as False by Python.

The simple solution is to explicitly compare the values to Unset and the check passes in there is any value different than Unset.

The same fix was performed for zne and measure_noise_learning options.

[coveralls]

Pull Request Test Coverage Report for Build 8817820953

Details

• 3 of 3 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.01%) to 83.662%

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Totals
Change from base Build 8817572387:	0.01%
Covered Lines:	6273
Relevant Lines:	7498

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💛 - Coveralls