Making the Switch

Our goal is to introduce a user interface for requesting the cash withdrawal. We want Cucumber to cover us as we make these changes, so we need to change how our test code interacts with the application. Up until now, all our step definitions were talking directly to the domain model. We’re going to change that so that some of them hit the new user interface instead. This is shown in the adjacent figure.

But, which steps need to change?

Let’s take a look at our scenario again:

Feature:​ Cash Withdrawal​​
Scenario:​ Successful withdrawal from an account in credit​​
Given ​my account has been credited with $100.00​​
When ​I withdraw $20​​
Then ​$20 should ...

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