ISSUE 18: Writing and Running Tests

[emidombek]

As a developer, I want to write unit tests for individual components and functions, So that I can verify that each component works as expected.

Acceptance Criteria

• [x] Identify critical components, functions, and methods for unit testing.
• [x] Write unit tests to cover these components with appropriate test cases.
• [x] Ensure that unit tests provide sufficient code coverage.
• [x] Run unit tests and verify that all tests pass without errors.
• [x] Address and fix any failing unit tests promptly.
• [x] Define a set of test scenarios representing common user workflows.
• [x] Execute each scenario step by step, verifying that the expected outcomes are achieved.
• [x] Document the results of each scenario, including any deviations from expected behavior.
• [x] Share scenario testing results with the development team for analysis and resolution.