DefinitelyTyped/types/co/co-tests.ts

import co = require('co');

function* gen(num: number, str: string, arr: number[], obj: object, fun: () => void) {
    return num;
}

co(gen, 42, 'forty-two', [42], { value: 42 }, () => {})
    .then((num: number) => {}, (err: Error) => {})
    .catch((err: Error) => {});

co.default(gen, 42, 'forty-two', [42], { value: 42 }, () => {})
    .then((num: number) => {}, (err: Error) => {})
    .catch((err: Error) => {});

co.co(gen, 42, 'forty-two', [42], { value: 42 }, () => {})
    .then((num: number) => {}, (err: Error) => {})
    .catch((err: Error) => {});

co.wrap(gen)(42, 'forty-two', [42], { value: 42 }, () => {})
    .then((num: number) => {}, (err: Error) => {})
    .catch((err: Error) => {});

// $ExpectError
co(gen, 42, 'forty-two', [42], { value: 42 }, () => {}).then((str: string) => {});

// $ExpectError
co.wrap(gen)();

// $ExpectError
co.wrap(gen)('forty-two');