Testing
Testing Jargon
There's no two ways about it: terminology in the testing world is incredibly overwhelming. Let's fix that! Bit by bit, we'll break all of these confusing concepts down as best as we can.
Difficulty
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Unit Testing
Run Time 8:34 FreeTo begin our journey, we'll review unit testing. What exactly does this refer to?
View the source for this episode on GitHub.
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Mocks
Run Time 9:16A mock offers us a useful way to set expecations on messages that should be sent, without actually sending those messages. It sounds confusing, so let's talk about it for a bit.
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Stubs
Run Time 7:04A mock allows us to enforce that certain messages are sent to various collaborators. A stub is a bit different. Think of a stub as a stand-in that returns any kind of hard-coded data. "When this method is called, return
false." Let's dig into this idea a bit more. -
Dummies
Run Time 4:02Don't worry: a dummy is really easy to understand. If a stub offers us a way to return pre-defined values for method calls, then a dummy strips that all away. They're the perfect stand-ins for collaborators that we don't care about.
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Factories
Run Time 8:06As we begin learning about other styles of testing, you'll surely come across the term, "factory." Let's review exactly what that is.
Once you've finished this episode, be sure to learn more about TestDummy.
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Integration Testing
Run Time 6:03So you're starting to get the hang of what a unit test is, right? Well, let's move up the chain a bit, and focus on integration tests. These provide an excellent way to group components in our system, and verify that they work as expected.
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BDD and Conversations
Run Time 10:27Finally have a basic understanding of TDD? Red, green, refactor? Well, then, how does BDD (Behavior-Driven Development) play into all of this? Well, think of BDD as TDD done right. As you'll find, we're less interested in things like object state, and more concerned with the conversation that takes place.
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Acceptance Testing and User Stories
Run Time 12:02Don't worry: acceptance tests are fairly easy to understand. They are tests, from the point of the view of the customer. Does the feature, as a whole (meaning, from the outside-in), work as they expected?
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