Testing the Application and Domain with Unit Tests
Understand unit testing in Go, with a focus on table-driven testing, and utilizing test doubles for thorough code validation.
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The system under test for a unit test is the smallest unit we can find in our application. In applications that are written in Go, this unit will be a function or method on a struct:
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The scope of a unit test
As shown in the above figure, only the function code is being tested. Any dependencies that the code under test requires must be provided as a test double such as a mock, a stub, or a fake dependency.
Each test should focus on testing only one path through ...