2 Matching Annotations
  1. Nov 2019
    1. Using expect { }.not_to raise_error(SpecificErrorClass) risks false positives, as literally any other error would cause the expectation to pass, including those raised by Ruby (e.g. NoMethodError, NameError, and ArgumentError)

      Actually, those would be false negatives: the absence of a test failure when it should be there.

      https://en.wikipedia.org/wiki/False_positives_and_false_negatives

    1. This is called a false positive. It means that we didn't get a test failure, but we should have

      No, this is a false negative. We didn't get a test failure (that is, there is a lack of the condition (test failure)), when the condition (test failure) should have been present.

      Read https://en.wikipedia.org/wiki/False_positives_and_false_negatives