Read the docstring for remove, delete the raise statement, then implement the method. This

method should reduce the bag$$s capacity when two$-$thirds or more of the backing array is not used.

$($Hint: see class ArrayList.$)$

Note that:

$$ When the bag is empty, the method should raise a ValueError exception that displays the

message, "bag.remove$($x$)$: remove from empty bag". The statement that does this is:

Lab $3$: Array Bag SYSC $2100$

Carleton University $4$ Systems and Computer Engineering

raise ValueError$("$bag$.$remove$($x$)$: remove from empty bag"$)$

$$ When the bag has no occurrences of the item we want to remove, the method should raise a

ValueError exception that displays the message, "bag.remove$($x$)$: x not in bag"

Use the Python shell to run a few tests on remove.

Think about the test cases that would be required to thoroughly test remove. Implement these

test cases as methods in class RemoveTestCase. $($Don$$t delete test remove$1$ and test remove$2.)$

Run the test script and review the output in the shell window. If necessary, edit remove and rerun

the test script until all test cases pass.