buildScriptBuilder.methodInvocation(null, functionalTestRuntimeOnly, "extendsFrom", testRuntimeOnly);

            BuildScriptBuilder.Expression functionalTest = buildScriptBuilder.taskRegistration("Add a task to run the functional tests", "functionalTest", "Test", b -> {
                b.propertyAssignment(null, "testClassesDirs", buildScriptBuilder.propertyExpression(functionalTestSourceSet, "output.classesDirs"), true);