then:
        assertArtifacts("a", ["mymodule", "art2", "art3", "art4", "art5"])

        and:
        assertArtifact('mymodule', 'jar', 'jar', null)
        assertArtifact('art2', 'ext', 'type', null)
        assertArtifact('art3', 'type2', 'type2', 'classy1')
        assertArtifact('art4', 'ext', 'jar', 'classy2')
        assertArtifact('art5', 'jar', 'jar', 'classy3')
    }