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@sjakobi sjakobi commented Sep 26, 2025

I just stumbled upon this while working on #491:

The property tested is covered by the test case above, but the property claimed in the test name is plain wrong:

   m1 ⊈ m2  ⇒  m1 ∪ m2 ⊈ m1:          FAIL
     *** Failed! Falsified (after 1 test and 2 shrinks):
     fromList [(K {hash = 0, _x = A},0)]
     fromList []

The property tested is covered by the test case above, but
the property claimed in the test name is plain wrong:

   m1 ⊈ m2  ⇒  m1 ∪ m2 ⊈ m1:          FAIL
     *** Failed! Falsified (after 1 test and 2 shrinks):
     fromList [(K {hash = 0, _x = A},0)]
     fromList []
@sjakobi sjakobi requested a review from treeowl September 26, 2025 12:42
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That's mysterious all right. It's not like it's going to help get coverage for some edge case either; that's the common case.

@sjakobi sjakobi merged commit fee3769 into master Sep 26, 2025
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2 participants