}

    def "does not accept candidate version that differs in separator"() {
        expect:
        !accept("1.0", "1_0")
        !accept("1_0", "1-0")
        !accept("1-0", "1+0")
        !accept("1.a.2", "1a2")
    }

    def "does not accept candidate version that has different number of trailing .0's"() {
        expect:
        !accept("1.0.0", "1.0")
        !accept("1", "1.0.0")
    }

    def "versions that differ only in separators are equal"() {
        expect:
        compare("1.0", "1_0") == 0
        compare("1_0", "1-0") == 0
        compare("1-0", "1+0") == 0
        compare("1.a.2", "1a2") == 0 // number-word and word-number boundaries are considered separators
    }

    def "leading zeros in numeric parts are ignored"() {
        expect:
        compare("01.0", "1.0") == 0