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Building a Weather Application From Scratch

Exposing Gaps in the Test Suite

The interface of the RootViewModel class shows that we only need to unit test the initializer and the refresh() method. I explained earlier why I don't unit test the initializer and, in the previous episodes, we unit tested the refresh() method. Does that mean that the test suite now completely covers the RootViewModel class? The answer is no. This is a common mistake developers make. In this episode, we collect code coverage data to expose the gaps in the test suite.

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Next Episode "Filling In the Gaps of the Test Suite"