How to combine multiple Mockito matchers with a logical "and"/"or"?

Question

I'd like to verify using Mockito that a string argument satisfies two conditions:

verify(mockClass).doSomething(Matchers.startsWith("prefix")); verify(mockClass).doSomething(Matchers.endsWith("suffix")); 

How to combine those two into one statement?

Answer 1

This is possible using org.mockito.AdditionalMatchers:

import static org.mockito.AdditionalMatchers.and;  verify(mockClass).doSomething(          and(Matchers.startsWith("prefix"),               Matchers.endsWith("suffix")); 

There are also org.mockito.AdditionalMatchers.or and org.mockito.AdditionalMatchers.not.

Answer 2

Prior comments have called out that and takes only two arguments, and that having a variant that takes three or more would be advantageous. The following code solves this recursively, allowing multiple matchers to be specified in varargs:

public static String conjunction(String... matchers) {   if (matchers.length < 2) {     throw new IllegalArgumentException("matchers.length must be >= 2");   } else if (matchers.length == 2) {     return and(matchers[0], matchers[1]);   } else {     final String[] tail = new String[matchers.length - 1];     System.arraycopy(matchers, 1, tail, 0, tail.length);     return and(matchers[0], conjunction(tail));   } } 

assuming the following imports:

import static org.mockito.AdditionalMatchers.*; import static org.mockito.Mockito.*;