add("-d")
        add(testKlib.absolutePathString())
    }
    MockLibraryUtil.runMetadataCompiler(arguments)

    return testKlib
}

internal fun createDumbVirtualFile(
    project: Project,
    fileName: String,
    text: String,
    fileSystem: VirtualFileSystem = MockVirtualFileSystem(),
): VirtualFile {
    val factory = KtPsiFactory(project, markGenerated = false)

                        // addSourceRoot(testDataPath(root).resolve("main"))
                        // Instead, add [VirtualFile] on-the-fly
                        val virtualFile = createDumbVirtualFile(
                            project,
                            "test.kt",
                            """
                                fun main() {
                                    foo()