interface GreetingPluginExtension {
    Property<String> getMessage()
    Property<String> getGreeter()
}

class GreetingPlugin implements Plugin<Project> {
    void apply(Project project) {
        def extension = project.extensions.create('greeting', GreetingPluginExtension)
        project.task('hello') {
            doLast {
                println "${extension.message.get()} from ${extension.greeter.get()}"
            }
        }
    }
}

    String expectedOutput = main.expectedOutput

    SwiftAppWithLibrariesAndXCTest() {
        super('app')
    }

    SourceElement getGreeter() {
        return app.greeter
    }

    SourceElement getLogger() {
        return app.logger
    }

    @Override
    List<SourceFile> getFiles() {