private final static Pattern ARG_PATTERN = Pattern.compile("%([0-9]+)"); public DescribedAs(String descriptionTemplate, Matcher<T> matcher, Object[] values) { this.descriptionTemplate = descriptionTemplate; this.matcher = matcher; this.values = values.clone(); } @Override public boolean matches(Object o) { return matcher.matches(o); } @Override public void describeTo(Description description) { java.util.regex.Matcher arg = ARG_PATTERN.matcher(descriptionTemplate); int textStart = 0; while (arg.find())...