Test code separation

As someone who spends quite some time writing and checking unit and e2e tests I’ve started noticing a trend I’m somewhat confused by. There have been multiple occasions in which I’ve encountered test logic (repeatable and single use) in either test specifications or page objects.

So I decided to share my approach to writing and foremost separating my test code into three categories. Those being: Specifications , Sequences and Page Objects.

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Spocklight: Set Timeout On Specification Methods

When we write a feature method in our Spock specification to test our class we might run into long running methods that are invoked. We can specify a maximum time we want to wait for a method. If the time spent by the method is more than the maximum time our feature method must fail. Spock has the @Timeout annotation to define this. We can apply the annotation to our specification or to feature methods in the specification. We specify the timeout value as argument for the @Timeout annotation. Seconds are the default time unit that is used. If we want to specify a different time unit we can use the annotation argument unit and use constants from java.util.concurrent.TimeUnit to set a value.

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Spocklight: Ignoring Other Feature Methods Using @IgnoreRest

To ignore feature methods in our Spock specification we can use the annotation @Ignore. Any feature method or specification with this annotation is not invoked when we run a specification. With the annotation @IgnoreRest we indicate that feature methods that do not have this annotation must be ignored. So any method with the annotation is invoked, but the ones without aren’t. This annotation can only be applied to methods and not to a specification class.

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Grails Goodness: Set Request Locale in Unit Tests

There is really no excuse to not write unit tests in Grails. The support for writing tests is excellent, also for testing code that has to deal with the locale set in a user’s request. For example we could have a controller or taglib that needs to access the locale. In a unit test we can invoke the addPreferredLocale() method on the mocked request object and assign a locale. The code under test uses the custom locale we set via this method.

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