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Test that children assignment fails if the subrule fails.

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This commit is contained in:
Rob Rix 2017-04-07 14:43:53 -04:00
parent b2da4ca89a
commit 71c5372d17
1 changed files with 3 additions and 0 deletions
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3
test/Data/Syntax/Assignment/Spec.hs
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@ -29,6 +29,9 @@ spec = do
it "matches if its subrule matches" $
() <$ runAssignment (children red) [ast Blue "b" [ast Red "a" []]] `shouldBe` Just ()
it "does not match if its subrule does not match" $
runAssignment (children red) [ast Blue "b" [ast Green "a" []]] `shouldBe` Nothing
ast :: Grammar -> ByteString -> [AST Grammar] -> AST Grammar
ast g s c = Rose (Node g s) c