def setup() {
        executer.requireOwnGradleUserHomeDir()
    }

    static String applyJavaPlugin() {
        applyPlugins(['java'])
    }

    static String applyGroovyPlugin() {
        applyPlugins(['groovy'])
    }

    static String applyPlugins(List<String> plugins) {
        """
            plugins {
                ${plugins.collect { "id '$it'\n"}.join('')}
            }

        then:
        succeeds 'build'
    }

    def "can compile typical Groovy-based Gradle plugin using Gradle API without having to declare Groovy dependency"() {
        when:
        buildFile << applyGroovyPlugin()
        buildFile << gradleApiDependency()

        file('src/main/groovy/MyPlugin.groovy') << customGroovyPlugin()

        then:
        succeeds 'build'
    }

    }

    def "Gradle API and TestKit are compatible regardless of order #dependencyPermutations"() {
        when:
        buildFile << applyGroovyPlugin()
        buildFile << mavenCentralRepository()
        buildFile << """
            testing {
                suites {
                    test {
                        useSpock()
                    }