Skip to content

add one more test to catch a potential bug #16

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
stevemao wants to merge 3 commits into
base: master
Choose a base branch
from
Open

add one more test to catch a potential bug #16

Changes from 2 commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
5eaf5c3
add one more test to catch a potential bug
stevemao Oct 26, 2019
85c8fd0
Update StateSpec.hs
stevemao Oct 26, 2019
45de021
desc
stevemao Oct 27, 2019
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions test/Course/StateSpec.hs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,8 @@ spec = do
describe "Monad" $ do
it "(=<<)" $
runState ((const $ put 2) =<< put 1) 0 `shouldBe` ((),2)
it "" $
runState ((\a -> State (\s -> (a + s, 10 + s))) =<< State (\s -> (s * 2, 4 + s))) 2 `shouldBe` (10, 16)
it "(>>=)" $
let modify f = State (\s -> ((), f s))
in runState (modify (+1) >>= \() -> modify (*2)) 7 `shouldBe` ((),16)
Expand Down