assertFalse(step.matches("ac"));
        assertFalse(step.matches("abcd"));
        assertFalse(step.matches("abd"));
        assertFalse(step.matches("a"));
    }

    @Test public void testMultiCharWildcard() {
        RegExpPatternStep step = new RegExpPatternStep("a*c", true);
        assertTrue(step.matches("abc"));
        assertTrue(step.matches("abrac"));
        assertFalse(step.matches("abcd"));