def snapshot = artifact.snapshot()

        and:
        moduleA.publishWithChangedContent()
        run("retrieve")

        then:
        artifact.assertContentsHaveChangedSince(snapshot)

        when:
        buildFile << """
class ChangingFalseRule implements ComponentMetadataRule {
    public void execute(ComponentMetadataContext context) {

    }

    URI toURI() {
        file.toURI()
    }

    Snapshot snapshot() {
        file.snapshot()
    }

    void assertHasChangedSince(Snapshot snapshot) {
        file.assertContentsHaveChangedSince(snapshot)
    }

    void assertExists() {
        file.assertIsFile()
    }

    void assertDoesNotExist() {
        file.assertDoesNotExist()
    }