We all know writing tests or specifications with Spock is fun. We can run our specifications and when one of our assertions in a feature method invalid, the feature method is marked as failed. If we have more than one assertion in our feature method, only the first assertion that fails is returned as an error. Any other assertion after a failing assertion are not checked. To let Spock execute all assertions and return all failing assertions at once we must use the verifyAll method. We pass a closure with all our assertions to the method. All assertions will be checked when use the verifyAll and if one or more of the assertions is invalid the feature method will fail.

In the following example specification we have 3 assertions in the feature method check all properties are valid. We don’t use the verifyAll method in our first example.