Tests/binarysearch

[adasarpan404]

This pull request refactors the implementations of the queue and stack data structures to use linked lists instead of arrays, introducing a custom Node class for each. It also updates the test suites to include direct and indirect tests for the new Node classes. Additionally, it removes a GitHub Actions workflow file.

Data Structure Refactoring:

• linear/queue.js: Refactored the queue implementation to use a singly linked list with a Node class, replacing the previous array-based approach. The Node class is now exported for testing.
• linear/stack.js: Refactored the stack implementation to use a singly linked list with a Node class, replacing the previous array-based approach. The Node class is made accessible for tests via the prototype chain.

Testing Enhancements:

• tests/queue.test.js: Added tests for the Node class and for verifying that the queue uses linked nodes internally.
• tests/stack.test.js: Added tests for the Node class, including its ability to store different value types and link to other nodes.

Workflow Cleanup:

• .github/workflows/github-actions-demo.yml: Removed the GitHub Actions demo workflow file.

[Copilot]

Pull Request Overview

This pull request refactors the queue and stack data structures from array-based to linked list-based implementations using custom Node classes, and updates the test suites to verify the new implementations work correctly.

• Refactored queue and stack to use linked lists with Node classes instead of arrays
• Added comprehensive test coverage for Node classes and internal structure verification
• Removed unused GitHub Actions demo workflow file

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
linear/queue.js	Refactored to use linked list with Node class, exports Node for testing
linear/stack.js	Refactored to use linked list with Node class, makes Node accessible via prototype chain
tests/queue.test.js	Added Node class tests and internal structure verification tests
tests/stack.test.js	Added Node class tests using indirect access method
.github/workflows/github-actions-demo.yml	Removed demo workflow file

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