Mockito: Match any String except one [duplicate]

Question

How can I write a matcher using Mockito that matches any string except a specific one?

I have tried using some hamcrest matchers to negate and combine other matchers, but the hamcrest matchers all return values of type Matcher<T> which dont work very well with Mockito matchers.

Answer 1

Just point that with Mockito you can also use AdditionalMatchers and ArgumentMatchers

import static org.mockito.AdditionalMatchers.not;
import static org.mockito.ArgumentMatchers.eq;

//anything but not "ejb"    
mock.someMethod(not(eq("ejb")));

According its documentation:

Example of using logical and(), not(), or() matchers:

//anything but not "ejb"
mock.someMethod(not(eq("ejb")));

There is more info in this other SO question

Hope it helps

Answer 2

The solution I used:

import static org.hamcrest.CoreMatchers.not;
import static org.mockito.ArgumentMatchers.argThat;

// ...

argThat(not("ExceptionString"))

Versions

• Mockito 3.3.3
• Hamcrest 1.3