New abstract rate strategy #3
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Implement emptyReturnsTotalEntered test to check if paystation.empty() method returns total amount entered. currently RED (test fails)
- Add to interface - Add to Impl - Ensure returns total inserted so far makes emptyReturnsTotalEntered() test GREEN
Add test case to ensure cancel method does not include any coins in a cancelled transaction when it returns the total value. Test is RED
I'm the worst
Access modifiers (public, private, etc.) in interfaces are redundant.
From void to Map<Integer, Integer>. Also return the appropriate typed object in implementation so that build does not fail.
insertedMap is a HashMap<Integer, Integer> recording the coin types and their respective quantities entered.
To reflect change in return type.
In 'cancel,' supposed to make a deep copy of the insertedMap but made a shallow copy instead. This fixes that.
Into two separate tests: shouldClearAfterCancel and shouldClearMapAfterCancel, to match requirements.
Empty is dependent on buy(). Without a call to buy(), the coin amounts are not collected. These rewrite addresses that requirement. Tests are now RED.
Add totalCollected which only accrues value after a call to buy() as per requirements. Reset totalCollected after call to empty(). Both tests written for empty() are now GREEN.
Add emptyResetsTotalCollected() test. Temporarily comment out totalCollected set to 0 in empty() in Impl to demonstrate test in fail state. Test is currently RED.
Uncomment relevant line to fix test. Test is now GREEN.
Add test to check that map of coins is cleared after a call to buy(). Comment out code in Impl to demonstrate fail state. Test is currently RED.
Reimplement insertedMap.clear() inside reset() method of Impl to clear map after call to cancel() or buy() Test is now GREEN
Test cases: No money, base case, 10 cents, into second hour, into third hour.
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My last tests assumed a constructor for Pay Station that takes Rate Strategy as a parameter. I see that this might not be the best say to configure an instance's default. If we never implement that constructor, just implement the instance method to set rate strategy and I'll make the test use that instead. |
Test cases: No money, base case, 10 cents, into second hour, into third hour.
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