MOCKITO CAPTOR CODE

We can use Mock to create and inject mocked instances without having to call Mockito.mock manually. The most widely used annotation in Mockito is Mock.

MOCKITO CAPTOR CODE

So we’ve created a method called generateProductCodeAndSave() which generates the code then passes the product to another method in order to insert it to the database. In this case, we must remember to make our rule public. Mockito 2 tutorial for beginners: Argument Captor. This way, we can provide additional JUnit assertions for our tests. ArgumentCaptor is used with Mockito verify() methods to get the arguments passed when any method is called. Like other annotations, Captor annotation is also available in the org.mockito package. It is used with the Mockito's verify() method to get the values passed when a method is called. Let’s say we have a class called Product and we create stock codes for these objects before saving them to the database. Mockito ArgumentCaptor is used to capture arguments for mocked methods. Captor: It allows the creation of a field-level argument captor.

ArgumentCaptor argument ArgumentCaptor.forClass (Person.class) verify (mock).doSomething (argument.capture ()) assertEquals ('John', argument.

It is especially useful when you can’t access the argument from the outside of the method. You should use factory method forClass (Class) to create captors instead to avoid NullPointerExceptions.

Allows shorthand ArgumentCaptor creation on fields.

Luckily, you can capture parameters with Mockito ArgumentCaptor. Annotation Type Captor Retention(valueRUNTIME) Target(valueFIELD) Documented public interface Captor. While creating test methods for a class, you might want to access some arguments passed to a specific method.

Mockito captor