when:
        signing {
            sign jar
            sign sourcesJar, javadocJar
        }

        then:
        def signingTasks = [signJar, signSourcesJar, signJavadocJar]

        and:
        jar in signJar.dependsOn
        sourcesJar in signSourcesJar.dependsOn
        javadocJar in signJavadocJar.dependsOn

        and:
        signingTasks.every { it.singleSignature in configurations.signatures.artifacts }

                sign jar, javadocJar, sourcesJar
            }
        """

        when:
        run "signJar", "signJavadocJar", "signSourcesJar"

        then:
        executedAndNotSkipped(":signJar", ":signJavadocJar", ":signSourcesJar")

        and:
        file("build", "libs", "sign-1.0.jar.asc").text
        file("build", "libs", "sign-1.0-javadoc.jar.asc").text