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A picture’s worth a 1000 tests.
Unit testing asserts can be difficult to use. Approval tests simplify this by taking a snapshot of the results, and confirming that they have not changed.
In normal unit testing, you say assertEquals(5, person.getAge())
. Approvals allow you to do this when the thing that you want to assert is no longer a primitive but a complex object. For example, you can say, Approvals.verify(person).
Note: Approvaltests is in many languages. We suggest you start there as it is the best maintained for each project.
Step 1: Create your scenario | |
Step 2: Write that scenario in English | |
Step 3: Translate english to Code | |
Step 4: Create Code so it works | |
Step 5: Run your test for feedback while you code | |
Step 6: Approve result so it continues to work | |
Step 7: Change the requirement | |
Step 8: See the new solution | |
Step 9: Re-approve so it continues to work |
More info
For more information checkout the Resources page.