this(0, projectDir)
    }

    PluginUnderTest(int num, TestFile projectDir) {
        this.num = num
        this.projectDir = projectDir
        this.implClasspath.addAll(getImplClasspath())
    }

    TestFile file(String path) {
        projectDir.file(path)
    }

    PluginUnderTest implClasspath(File... files) {
        implClasspath.clear()
        implClasspath.addAll(files)