Iteration 1 - Task 4: Increase Test Coverage to 45%

[jashjobalia]

Story 4.1: Set up SimpleCov and configure it to ignore the /lib folder.
Points: 1

Story 4.2: Run SimpleCov to check the current test coverage of the /app directory.
Points: 1

Story 4.3: Review existing tests and identify gaps in coverage.
Points: 1

Story 4.4: Write additional RSpec tests to cover the uncovered code.
Points: 1

Story 4.5: Run the RSpec and Cucumber tests to ensure all tests pass and coverage is sufficient.
Points: 1

[trishashish]

Updated to https://github.com/cs169/fa24-chips-10.5-22/issues/5