Flutter test

JUnit is the Java library used to write tests (offers support for running tests and different extra helpers – like setup and teardown methods, test sets etc.). Mockito is a library that enables writing tests using the mocking approach .

The Mockito. mock() method allows us to create a mock object of a class or an interface . We can then use the mock to stub return values for its methods and verify if they were called. We don’t need to do anything else to this method before we can use it.

The main purpose of using the Mockito framework is to simplify the development of a test by mocking external dependencies and use them in the test code . As a result, it provides a simpler test code that is easier to read, understand, and modify.

Benefits of Mockito. No Handwriting − No need to write mock objects on your own. Refactoring Safe − Renaming interface method names or reordering parameters will not break the test code as Mocks are created at runtime. Return value support − Supports return values.

Mockito is a mocking framework, JAVA-based library that is used for effective unit testing of JAVA applications . Mockito is used to mock interfaces so that a dummy functionality can be added to a mock interface that can be used in unit testing.

This recipe demonstrates the basics of mocking with the Mockito package using the following steps: