included file('13')
        excluded file('a')
        excluded file('1')
        excluded file('c')
        excluded file('3')
        excluded file('acb')
        excluded file('acd')
        excluded file('132')
        excluded file('132')

        when:
        patternSet = new PatternSet().copyFrom(patternSet)
        then:
        included file('ac')
        included file('13')