#660 | Unit tests fix

[ezra-sg]

Fixes #660

Description

This PR fixes some broken unit tests by updating how we use jest mocks

Test scenarios

• check out the branch git fetch --all && git checkout 660-unit-test-fix
• run tests yarn test
  • all tests should succeed

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have cleaned up the code in the areas my change touches
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings
• I have removed any unnecessary console messages
• I have included all english text to the translation file and/or created a new issue with the required translations for the currently supported languages
• I have tested for mobile functionality and responsiveness
• I have added appropriate test coverage

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