Enter the Integration Test

Integration tests are any kind of test that combines more than one thing together. It’s a terrible name for a test, because UI tests are integration tests, and technically you could argue unit tests are too (if you consider two objects calling each other “integration”).

But in the context of this book, and the way many in our industry use the term today, integration tests for us are going to be the underlying services that power an application. For web applications, these are our web services—programs that run on web servers and respond to HTTP requests.

images/int/int-tests.png

Integration tests are important for a number of reasons. First, ...

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