bank-account: Move hints to HINTS.md

exercises/bank-account/HINTS.md

@@ -0,0 +1,15 @@
+## Hints
+
+To complete this exercise you need to implement the following functions:
+
+- `openAccount` - Called at the start of each test. Returns a BankAccount.
+- `closeAccount` - Called at the end of each test.
+- `getBalance` - Get the balance of the bank account.
+- `updateBalance` - Increment the balance of the bank account by the given amount.
+
+The amount may be negative for a withdrawal.
+
+The initial balance of the bank account should be 0.
+
+Your can use the provided signatures if you are unsure about the types, but
+don't let them restrict your creativity.

exercises/bank-account/src/BankAccount.hs

@@ -6,9 +6,6 @@ module BankAccount
     , openAccount
     ) where
 
--- The task is to create the data type `BankAccount` and
--- and implement the functions below.
-
 closeAccount :: BankAccount -> IO ()
 closeAccount = undefined
 

exercises/bank-account/test/Tests.hs

@@ -11,25 +11,6 @@ import BankAccount
   , openAccount
   )
 
-{-
-The BankAccount module should support four calls:
-
-openAccount
-  Called at the start of each test. Returns a BankAccount.
-
-closeAccount account
-  Called at the end of each test.
-
-getBalance account
-  Get the balance of the bank account.
-
-updateBalance account amount
-  Increment the balance of the bank account by the given amount.
-  The amount may be negative for a withdrawal.
-
-The initial balance of the bank account should be 0.
--}
-
 main :: IO ()
 main = hspecWith defaultConfig {configFastFail = True} specs