/** The test script. */
export function script(options?: ScriptOptions): Lab & ExperimentAlt & TestAlt;
/** Access the configured assertion library. */
export const assertions: any;

interface Lab {
    /** Organise tests into an experiment */
    experiment(desc: string, cb: EmptyCallback): void;

    /** Organise tests into an experiment with options */
    experiment(desc: string, options: ExperimentOptions, cb: EmptyCallback): void;

    /** Create a test suite */
    describe(desc: string, cb: EmptyCallback): void;

    /** Create a test suite with options */
    describe(desc: string, options: ExperimentOptions, cb: EmptyCallback): void;

    /** Create a test suite */
    suite(desc: string, cb: EmptyCallback): void;

    /** Create a test suite with options */
    suite(desc: string, options: ExperimentOptions, cb: EmptyCallback): void;

    /** The test spec */
    test(desc: string, cb: TestCallback): void;

    /** The test spec using a promise */
    test(desc: string, promise: TestPromise): void;

    /** The test spec with options */
    test(desc: string, options: TestOptions, cb: TestCallback): void;

    /** The test spec using a promise with options */
    test(desc: string, options: TestOptions, promise: TestPromise): void;

    /** The test spec */
    it(desc: string, cb: TestCallback): void;

    /** The test spec using a promise */
    it(desc: string, promise: TestPromise): void;

    /** The test spec with options */
    it(desc: string, options: TestOptions, cb: TestCallback): void;

    /** The test spec using a promise with options */
    it(desc: string, options: TestOptions, promise: TestPromise): void;

    /** Perform async actions before the test suite */
    before(cb: AsyncCallback): void;

    /** Perform async actions before the test suite using a promise */
    before(promise: AsyncPromise): void;

    /** Perform async actions before the test suite with options */
    before(options: AsyncOptions, cb: AsyncCallback): void;

    /** Perform async actions before the test suite with otions, using a promise */
    before(options: AsyncOptions, promise: AsyncPromise): void;

    /** Perform async actions before each test */
    beforeEach(cb: AsyncCallback): void;

    /** Perform async actions before each test using a promise */
    beforeEach(promise: AsyncPromise): void;

    /** Perform async actions before each test with options */
    beforeEach(options: AsyncOptions, cb: AsyncCallback): void;

    /** Perform async actions before each test with options, using a promise */
    beforeEach(options: AsyncOptions, promise: AsyncPromise): void;

    /** Perform async actions after the test suite */
    after(cb: AsyncCallback): void;

    /** Perform async actions after the test suite using a promise */
    after(promise: AsyncPromise): void;

    /** Perform async actions after the test suite with options */
    after(options: AsyncOptions, cb: AsyncCallback): void;

    /** Perform async actions after the test suite with options, using a promise */
    after(options: AsyncOptions, promise: AsyncPromise): void;

    /** Perform async actions after each test */
    afterEach(cb: AsyncCallback): void;

    /** Perform async actions after each test using a promise */
    afterEach(promise: AsyncPromise): void;

    /** Perform async actions after each test with options */
    afterEach(options: AsyncOptions, cb: AsyncCallback): void;

    /** Perform async actions after each test with options, using a promise */
    afterEach(options: AsyncOptions, promise: AsyncPromise): void;
}

interface ExperimentAlt {
    experiment: SkipOnlyExperiment;
    suite: SkipOnlyExperiment;
    describe: SkipOnlyExperiment;
}

interface TestAlt {
    test: SkipOnlyTest;
    it: SkipOnlyTest;
}

interface SkipOnlyExperiment {
    /** Skip this test suite */
    skip: ExperimentArgs & ExperimentWithOptionsArgs;

    /** Only execute this test suite */
    only: ExperimentArgs & ExperimentWithOptionsArgs;
}

interface SkipOnlyTest {
    /** Skip this test */
    skip: TestArgs & TestWithOptionsArgs;

    /** Only execute this test */
    only: TestArgs & TestWithOptionsArgs;
}

interface ScriptOptions {
    /** Enable auto-execution of the script? (true) */
    schedule?: boolean | undefined;

    /** Pass Lab CLI options */
    cli?: any;
}

interface ExperimentOptions {
    /** Set a specific timeout in milliseconds (2000) */
    timeout?: number | undefined;

    /** Execute tests in parallel? (false) */
    parallel?: boolean | undefined;

    /** Skip execution? (false) */
    skip?: boolean | undefined;

    /** Execute only this test/experiment? (false) */
    only?: boolean | undefined;
}

interface TestOptions extends ExperimentOptions {
    /** The expected number of assertions to execute */
    plan?: number | undefined;
}

interface AsyncOptions {
    /** Set a specific timeout in milliseconds (disabled) */
    timeout?: number | undefined;
}

interface DoneNote {
    /** Attach a note to the test case */
    note: (text: string) => void;
}

type EmptyCallback = () => void;

type DoneFunction = (err?: Error) => void;

type CleanupFunction = (func: (next: Function) => void) => void;

type TestCallback = (done: DoneFunction & DoneNote, onCleanup?: CleanupFunction) => void;

type TestPromise = () => Promise<any>;

type AsyncCallback = (done: DoneFunction) => void;

type AsyncPromise = () => Promise<any>;

type ExperimentArgs = (desc: string, cb: EmptyCallback) => {};

type ExperimentWithOptionsArgs = (desc: string, options: ExperimentOptions, cb: EmptyCallback) => {};

type TestArgs = (desc: string, cb: TestCallback) => {};

type TestWithOptionsArgs = (desc: string, options: TestOptions, cb: TestCallback) => {};