What is the purpose of the ArgumentMatchers class in Mockito?
A) To provide matchers for flexible argument verification
B) To create mock objects
C) To inject mocks into the test
D) To configure method stubbing
Answer:
A) To provide matchers for flexible argument verification
Explanation:
The ArgumentMatchers class in Mockito is used to provide matchers that allow for flexible argument verification when working with mock objects. Instead of specifying exact argument values, you can use matchers to assert that a method was called with any value, a value matching a specific condition, or a range of values.
Common matchers include any(), eq(), anyString(), and anyInt(), among others. These matchers make it easier to verify method calls without needing to know the exact values passed to the methods.
For example:
when(mockObject.someMethod(anyString())).thenReturn(someValue);
In this example, the someMethod() is stubbed to return someValue for any string argument.