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added two tests for deep setRight and setLeft #1121

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added two tests for deep setRight and setLeft #1121

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550c1a0
added two tests for deep setRight and setLeft
Oct 14, 2022
4bcbf9e
Merge branch 'main' into zipper_add_deep_tests
atombear Oct 28, 2022
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10 changes: 10 additions & 0 deletions exercises/practice/zipper/test/Tests.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,8 @@ specs = do
t5 = BT 6 (leaf 7 ) $ leaf 8
t6 = BT 1 (node 2 Nothing $ leaf 3) $ node 6 (leaf 7) (leaf 8)
t7 = BT 1 (node 2 Nothing $ leaf 5) $ leaf 4
t8 = BT 1 (node 2 Nothing $ leaf 3) $ node 6 (leaf 7) (node 8 (leaf 15) Nothing)
t9 = BT 1 (node 2 Nothing $ leaf 3) $ node 6 (leaf 7) (node 8 Nothing (leaf 15))

it "data is retained" $
toTree (fromTree t1)
Expand Down Expand Up @@ -82,3 +84,11 @@ specs = do
it "different paths to same zipper" $
(right . fromJust . up . fromJust . left . fromTree) t1
`shouldBe` (right . fromTree) t1

it "setLeft with subtree on deep focus" $
(toTree . setLeft (leaf 15) . fromJust . right . fromJust . right . fromTree) t6
`shouldBe` t8

it "setRight with subtree on deep focus" $
(toTree . setRight (leaf 15) . fromJust . right . fromJust . right . fromTree) t6
`shouldBe` t9