Refactor Tests to Use Mocked API Data

[siddharth7113]

Tasks:

• Replace live API calls in tests with mocked responses.
• Validate that tests run independently of API availability.

Purpose:

• To improve test reliability by reducing dependence on live API calls, ensuring that tests are consistent and stable in CI/CD pipelines.

[peterdudfield]

Im just re openining this due to #33

[siddharth7113]

Were there any issues with the tests?

[peterdudfield]

no issue with the tests, just the fetch_data logic had to change a bit in #33

[peterdudfield]

You can review #33 if you like?

[siddharth7113]

@peterdudfield I was thinking I could refactor the test according to the changes in #33 ? Or is it not needed for the moment?