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Test union asymmetry.

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This commit is contained in:
Rob Rix 2015-12-14 18:15:56 -05:00
parent 79d5e38b26
commit e9cac45f65
1 changed files with 3 additions and 0 deletions
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3
test/OrderedMapSpec.hs
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@ -16,6 +16,9 @@ spec = do
it "should return those elements in either a or b" $
Map.union a b `shouldBe` (Map.fromList $ Map.toList a ++ [ ("d", -4) ])
it "is asymmetrical" $ do
Map.union a b `shouldNotBe` Map.union b a
describe "unions" $ do
it "is the union of multiple maps" $
Map.unions [ a, b ] `shouldBe` Map.union a b