/**
 * TestSandbox class provides a convenient way to get a reference to a
 * sandbox folder in which you can perform operations for testing purposes.
 */
export declare class TestSandbox {
    private _path?;
    readonly path: string;
    /**
     * Will create a directory if it doesn't already exist. If it exists, you
     * still get an instance of the TestSandbox.
     *
     * @param path - Path of the TestSandbox. If relative (it will be resolved relative to cwd()).
     */
    constructor(path: string);
    /**
     * Returns the path of the TestSandbox
     */
    getPath(): string;
    /**
     * Resets the TestSandbox. (Remove all files in it).
     */
    reset(): Promise<void>;
    /**
     * Deletes the TestSandbox.
     */
    delete(): Promise<void>;
    /**
     * Makes a directory in the TestSandbox
     *
     * @param dir - Name of directory to create (relative to TestSandbox path)
     */
    mkdir(dir: string): Promise<void>;
    /**
     * Copies a file from src to the TestSandbox. If copying a `.js` file which
     * has an accompanying `.js.map` file in the src file location, the dest file
     * will have its sourceMappingURL updated to point to the original file as
     * an absolute path so you don't need to copy the map file.
     *
     * @param src - Absolute path of file to be copied to the TestSandbox
     * @param dest - Optional. Destination filename of the copy operation
     * (relative to TestSandbox). Original filename used if not specified.
     */
    copyFile(src: string, dest?: string): Promise<void>;
    /**
     * Creates a new file and writes the given data serialized as JSON.
     *
     * @param dest - Destination filename, optionally including a relative path.
     * @param data - The data to write.
     */
    writeJsonFile(dest: string, data: unknown): Promise<void>;
}