plus test

gistfile1.java

    @Test
    public void basicPlus() {
        NFA left = new NFA(new HashSet<Character>(Arrays.asList(new Character[]{'a', 'b', 'c'})));

        NFA result = NFAOperations.plus(left);

        assert(result.accepts("a"));
        assert(result.accepts("aa"));
        assert(result.accepts("ab"));
        assert(result.accepts("ba"));
        assert(result.accepts("bccc"));
        assertFalse(result.accepts(null));
        assertFalse(result.accepts("x"));
        assertFalse(result.accepts("ax"));
        assertFalse(result.accepts("xc"));
        assertFalse(result.accepts("cxa"));
    }