strain: Add test for non-strict keep and discard #210
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| ["yes"] @=? take 1 (keep (const True) ws) | ||
| , testCase "discard non-strict" $ do | ||
| let ws = "yes" : error "discard should be lazier - don't look at list elements you don't need!" | ||
| ["yes"] @=? take 1 (discard (const False) ws) |
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Just as d238a33 added a test for
accumulate to be non-strict, we add a test for keep and discard that
does the same.
For the purpose of #194
Closes #208