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Test-Driven iOS Development with Swift

You're reading from   Test-Driven iOS Development with Swift Create fully-featured and highly functional iOS apps by writing tests first

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Product type Paperback
Published in Feb 2016
Publisher Packt
ISBN-13 9781785880735
Length 218 pages
Edition 1st Edition
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Author (1):
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Dr. Dominik Hauser Dr. Dominik Hauser
Author Profile Icon Dr. Dominik Hauser
Dr. Dominik Hauser
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Integration tests


In Chapter 6, Putting It All Together, we saw that unit tests could only test micro features in isolation. The next step would be to use integration tests to make sure that individual features play well together. In integration tests, you do not mock other components. Instead, you use the real implementation and write tests that make sure that the different parts of the code base interact with each other in the way you anticipated.

You can also use XCTest to implement integration tests. But the setup is more complicated than in the tests we have seen in this book. You use real classes and structs, and even network requests can fetch real data from a web service. What makes integration tests more complicated is that you don't want to change data in a real database during the test. This means that everything you do in the test has to be reverted when the test is finished. Or, you may have to use a different database or web service for the test.

The disadvantage of integration...

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