Added unit test for MutationDetail

[anandwana001]

Fixes #2567

@sufyanAbbasi PTAL?

[shobhitagarwal1612]

Why do we need test coverage for a data class?

[anandwana001]

Why do we need test coverage for a data class?

Yes, writing a separate test file might not require or can be covered with another dependent file, but

1. This file is mentioned in my task list as it's a 0% code coverage
2. IMO, writing test cases might look extra but it's good to have as we can say we have both dependent and independent test cases written which is helping us to achieve 100% code coverage

WDYT?

[shobhitagarwal1612]

Adding coverage via this way doesn't achieve anything and is giving a false sense of coverage. I'd recommend not adding it. Instead, we should see which code flow should have covered these files and add tests for that.

For e.g. MutationDetail object is created when displaying the SyncStatusFragment. So, adding unit tests for this fragment should automatically cover these files as well.

[anandwana001]

Got it, let me close this pr and we will cover it with the SyncStatusFragment . Thanks