Red() {
                    super("red")
                }

                @Override
                void transform(TransformOutputs outputs) {
                    ${server.callFromBuildUsingExpression("inputArtifact.get().asFile.name")}
                    super.transform(outputs)
                }
            }
        """

        when:

     */
    public String callFromBuild(String resource) {
        return callFromBuildUsingExpression("\"" + resource + "\"");
    }

    /**
     * Returns Java statements to get the given resource, using the given expression to calculate the resource to get.
     */
    public String callFromBuildUsingExpression(String expression) {
        String uriExpression = "\"" + getUri() + "/\" + " + expression;

    def "can call from client code"() {
        server.start()
        def script = TestUtil.createScript """
            def prefix = "a"
            ${server.callFromBuild("a1")}
            ${server.callFromBuildUsingExpression("prefix + '2'")}
        """

        given:
        server.expect("a1")
        server.expect("a2")

        when:
        script.run()
        server.stop()

        then: