Setting expectations on Matchers in JMock

Expectations on Matcher

new Expectations() {{
    // allowing(matcher) treats the matcher not as the receiver,
    // but as a matcher on receivers, so must use same(matcher)
    //
    // No matches(input) is available, so must use method("matches")
    //
    // No with(input) is available, so must use with(equalTo(input))
    allowing(same(matcher)).method("matches").with(equalTo(input));
    will(returnValue(false));
}};