org.hamcrest.Description; import org.hamcrest.Factory; import org.hamcrest.Matcher; import java.util.regex.Pattern; import static java.lang.Integer.parseInt; /** * Provides a custom description to another matcher. */ public class DescribedAs<T> extends BaseMatcher<T> { private final String descriptionTemplate; private final Matcher<T> matcher; private final Object[] values; private final static Pattern ARG_PATTERN = Pattern.compile("%([0-9]+)"); public DescribedAs(String descriptionTemplate, Matcher<T> matcher, Object[]...