Implement growable stack and max-depth tracking (#8)

[HossamSaberr]

This closes #8.

Overview

This PR fix the issue by introducing a growable stack implementation .

Changes

1. CTGrowableStack: Re-introduced the OrderedCollection-based implementation. This provides a dynamic stack that doesn't require a fixed initial capacity, fulfilling the request for the old implementation style.
2. CTTrackedGrowableStack: Added a subclass that introduces a maxDepth instance variable. It overrides push: to track the high-water mark of the stack's size during its lifecycle.
3. Testing:
   • Created CTGrowableStackTest for basic LIFO verification.
   • Created CTTrackedGrowableStackTest to verify that maxDepth correctly records the peak size even after elements are popped.

and all tests are green!

[jordanmontt]

I like this PR!

Could you add more tests to test the internals?
For example, we need to test explicitly that the CTGrowableStack actually grows its internal array (like ordered collection). If the initial size if 4 and we add 5 elements the new size should be 8 (because we double the size, like in ordered collection).

The same for CTTrackedGrowableStack we need to tests the internals as well of the external API

:)

[HossamSaberr]

I have added the internal tests, I wrote tests that verify the internal OrderedCollection's capacity successfully doubles from 4 to 8 when the 5th element is added
To achieve this without altering the public API, I used instVarNamed: in the test to strictly verify the internal array's behavior

All Green!

[virenvarma007]

Great work on this PR.
You addressed Jordan’s request with explicit internal tests for capacity growth from 4 to 8 on the 5th push in both CTGrowableStack and CTTrackedGrowableStack, plus good max-depth coverage.
I ran all tests locally and they passed, including one extra personal local test.

Minor non-blocking nit: remove the unused initialCapacity temp in CTGrowableStackTest>>testInternalGrowth.

Looks good to approve.

[HossamSaberr]

Thanks for the review and the approval! I just pushed a quick commit to remove that unused initialCapacity variable.