TestDouble

Today I came across a word named TestDouble – I was wondering what it was! I had no idea – obviously I knew it had something to do with Unit Tests or Fitnesse Tests!

Test Double is a generic term for any case where you replace a production object for testing purposes

There are different types of TestDoubles :

1. Dummy Object

2. Test Stub

3. Test Spy

4. Mock Object

5. Fake Object

One of the common case, where we use TestDouble is when we need communication with external services.

More information here!

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