index.d.ts

/// <reference types="chai" />

declare namespace Chai {
    interface ChaiStatic {
        spy: ChaiSpies.Spy;
    }

    interface LanguageChains {
        on: Assertion;
    }

    interface Assertion {
        /**
         * ####.spy
         * Asserts that object is a spy.
         * ```ts
         * expect(spy).to.be.spy;
         * spy.should.be.spy;
         * ```
         */
        spy: Assertion;

        /**
         * ####.called
         * Assert that a spy has been called. Negation passes through.
         * ```ts
         * expect(spy).to.have.been.called();
         * spy.should.have.been.called();
         * ```
         * Note that ```called``` can be used as a chainable method.
         */
        called: ChaiSpies.Called;

        /**
         *  * ####.been
         * * Assert that something has been spied on. Negation passes through.
         * * ```ts
         * * expect(spy).to.have.been.called();
         * * spy.should.have.been.called();
         * ```
         * Note that ```been``` can be used as a chainable method.
         */
        been: ChaiSpies.Been;

        /**
         *  * ####.nth (function)
         * * Assert that something has been spied on on a certain index. Negation passes through.
         * * ```ts
         * * expect(spy).on.nth(5).be.called.with('foobar');
         * * spy.should.on.nth(5).be.called.with('foobar');
         * ```
         * Note that ```nth``` can be used as a chainable method.
         */
        nth(index: number): Assertion;
    }
}

declare namespace ChaiSpies {
    interface Sandbox {
        /**
         * #### chai.spy.on (function)
         *
         * Wraps an object method into spy. All calls will pass through to the original function.
         *
         * @param {Object} object
         * @param {String} methodNames names to spy on
         * @param {function} fn replacement function
         * @returns function to actually call
         */
        on(object: Object, methodNames: string | string[], fn?: (...parameters: any[] | any) => any): any;

        /**
         * #### chai.spy.restore (function)
         *
         * Restores previously wrapped object's method.
         * Restores all spied objects of a sandbox if called without parameters.
         *
         * @function
         * @param {Object} [object]
         * @param {String|String[]} [methods] name or names
         * @return {Sandbox} Sandbox instance
         */
        restore(object?: Object, methodNames?: string | string[]): void;
    }
    interface Spy {
        /**
         * #### chai.spy (function)
         *
         * Wraps a function in a proxy function. All calls will pass through to the original function.
         * ```ts
         * function original() {}
         * var spy = chai.spy(original)
         *   , e_spy = chai.spy();
         * ```
         * @param fn function to spy on. @default ```function () {}```
         * @returns function to actually call
         */
        (): SpyFunc0Proxy<void>;
        <R>(fn: SpyFunc0<R>): SpyFunc0Proxy<R>;
        <A1, R>(fn: SpyFunc1<A1, R>): SpyFunc1Proxy<A1, R>;
        <A1, A2, R>(fn: SpyFunc2<A1, A2, R>): SpyFunc2Proxy<A1, A2, R>;
        <A1, A2, A3, R>(fn: SpyFunc3<A1, A2, A3, R>): SpyFunc3Proxy<A1, A2, A3, R>;
        <A1, A2, A3, A4, R>(fn: SpyFunc4<A1, A2, A3, A4, R>): SpyFunc4Proxy<A1, A2, A3, A4, R>;
        <A1, A2, A3, A4, A5, R>(fn: SpyFunc5<A1, A2, A3, A4, A5, R>): SpyFunc5Proxy<A1, A2, A3, A4, A5, R>;
        <A1, A2, A3, A4, A5, A6, R>(fn: SpyFunc6<A1, A2, A3, A4, A5, A6, R>): SpyFunc6Proxy<A1, A2, A3, A4, A5, A6, R>;
        <A1, A2, A3, A4, A5, A6, A7, R>(
            fn: SpyFunc7<A1, A2, A3, A4, A5, A6, A7, R>,
        ): SpyFunc7Proxy<A1, A2, A3, A4, A5, A6, A7, R>;
        <A1, A2, A3, A4, A5, A6, A7, A8, R>(
            fn: SpyFunc8<A1, A2, A3, A4, A5, A6, A7, A8, R>,
        ): SpyFunc8Proxy<A1, A2, A3, A4, A5, A6, A7, A8, R>;
        <A1, A2, A3, A4, A5, A6, A7, A8, A9, R>(
            fn: SpyFunc9<A1, A2, A3, A4, A5, A6, A7, A8, A9, R>,
        ): SpyFunc9Proxy<A1, A2, A3, A4, A5, A6, A7, A8, A9, R>;
        <A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, R>(
            fn: SpyFunc10<A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, R>,
        ): SpyFunc10Proxy<A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, R>;
        <R>(name: string, fn: SpyFunc0<R>): SpyFunc0Proxy<R>;
        <A1, R>(name: string, fn: SpyFunc1<A1, R>): SpyFunc1Proxy<A1, R>;
        <A1, A2, R>(name: string, fn: SpyFunc2<A1, A2, R>): SpyFunc2Proxy<A1, A2, R>;
        <A1, A2, A3, R>(name: string, fn: SpyFunc3<A1, A2, A3, R>): SpyFunc3Proxy<A1, A2, A3, R>;
        <A1, A2, A3, A4, R>(name: string, fn: SpyFunc4<A1, A2, A3, A4, R>): SpyFunc4Proxy<A1, A2, A3, A4, R>;
        <A1, A2, A3, A4, A5, R>(
            name: string,
            fn: SpyFunc5<A1, A2, A3, A4, A5, R>,
        ): SpyFunc5Proxy<A1, A2, A3, A4, A5, R>;
        <A1, A2, A3, A4, A5, A6, R>(
            name: string,
            fn: SpyFunc6<A1, A2, A3, A4, A5, A6, R>,
        ): SpyFunc6Proxy<A1, A2, A3, A4, A5, A6, R>;
        <A1, A2, A3, A4, A5, A6, A7, R>(
            name: string,
            fn: SpyFunc7<A1, A2, A3, A4, A5, A6, A7, R>,
        ): SpyFunc7Proxy<A1, A2, A3, A4, A5, A6, A7, R>;
        <A1, A2, A3, A4, A5, A6, A7, A8, R>(
            name: string,
            fn: SpyFunc8<A1, A2, A3, A4, A5, A6, A7, A8, R>,
        ): SpyFunc8Proxy<A1, A2, A3, A4, A5, A6, A7, A8, R>;
        <A1, A2, A3, A4, A5, A6, A7, A8, A9, R>(
            name: string,
            fn: SpyFunc9<A1, A2, A3, A4, A5, A6, A7, A8, A9, R>,
        ): SpyFunc9Proxy<A1, A2, A3, A4, A5, A6, A7, A8, A9, R>;
        <A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, R>(
            name: string,
            fn: SpyFunc10<A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, R>,
        ): SpyFunc10Proxy<A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, R>;

        /**
         * #### chai.spy.on (function)
         *
         * Wraps an object method into spy. All calls will pass through to the original function.
         * ```ts
         * var spy = chai.spy.on(Array, 'isArray');
         * ```
         * @param {Object} object
         * @param {String} method names to spy on
         * @param {function} fn replacement function
         * @returns function to actually call
         */
        on(object: Object, methodNames: string | string[], fn?: (...parameters: any[] | any) => any): any;

        /**
         * #### chai.spy.interface (function)
         *
         * Creates an object with spied methods.
         * ```ts
         * var object = chai.spy.interface('Array', [ 'push', 'pop' ]);
         * ```
         * @param {String} [name] object name
         * @param {String[]|Object} method names or method definitions
         * @returns object with spied methods
         */
        interface(name: string, methods: string[]): any;
        interface(methods: string[]): any;
        interface<T>(name: string, methods: T): T;
        interface<T>(methods: T): T;

        /**
         * #### chai.spy.restore (function)
         *
         * Restores spy assigned to DEFAULT sandbox
         *
         * Restores previously wrapped object's method.
         * Restores all spied objects of a sandbox if called without parameters.
         *
         * @param {Object} [object]
         * @param {String|String[]} [methods] name or names
         * @return {Sandbox} Sandbox instance
         */
        restore(object?: Object, methodNames?: string | string[]): void;

        /**
         * #### chai.spy.returns (function)
         *
         * Creates a spy which returns static value.
         * ```ts
         *      var method = chai.spy.returns(true);
         * ```
         * @param {*} value static value which is returned by spy
         * @returns new spy function which returns static value
         * @api public
         */

        returns<T>(value: T): SpyFunc0Proxy<T>;

        /**
         * ### chai.spy.sandbox
         *
         * Creates a sandbox.
         *
         * Sandbox is a set of spies.
         * Sandbox allows to track methods on objects and restore original methods with on restore call.
         *
         * @returns {Sandbox}
         */
        sandbox(): Sandbox;
    }

    interface Called {
        (): Chai.Assertion;
        with: With;
        always: Always;

        /**
         * ####.once
         * Assert that a spy has been called exactly once.
         * ```ts
         * expect(spy).to.have.been.called.once;
         * expect(spy).to.not.have.been.called.once;
         * spy.should.have.been.called.once;
         * spy.should.not.have.been.called.once;
         * ```
         */
        once: Chai.Assertion;

        /**
         * ####.twice
         * Assert that a spy has been called exactly twice.
         * ```ts
         * expect(spy).to.have.been.called.twice;
         * expect(spy).to.not.have.been.called.twice;
         * spy.should.have.been.called.twice;
         * spy.should.not.have.been.called.twice;
         * ```
         */
        twice: Chai.Assertion;

        /**
         * ####.exactly(n)
         * Assert that a spy has been called exactly ```n``` times.
         * ```ts
         * expect(spy).to.have.been.called.exactly(3);
         * expect(spy).to.not.have.been.called.exactly(3);
         * spy.should.have.been.called.exactly(3);
         * spy.should.not.have.been.called.exactly(3);
         * ```
         */
        exactly(n: number): Chai.Assertion;

        /**
         * ####.min(n) / .at.least(n)
         * Assert that a spy has been called minimum of ```n``` times.
         * ```ts
         * expect(spy).to.have.been.called.min(3);
         * expect(spy).to.not.have.been.called.at.least(3);
         * spy.should.have.been.called.at.least(3);
         * spy.should.not.have.been.called.min(3);
         * ```
         */
        min(n: number): Chai.Assertion;

        /**
         * ####.max(n) / .at.most(n)
         * Assert that a spy has been called maximum of ```n``` times.
         * ```ts
         * expect(spy).to.have.been.called.max(3);
         * expect(spy).to.not.have.been.called.at.most(3);
         * spy.should.have.been.called.at.most(3);
         * spy.should.not.have.been.called.max(3);
         * ```
         */
        max(n: number): Chai.Assertion;

        at: At;
        /**
         * ####.above(n) / .gt(n)
         * Assert that a spy has been called more than ```n``` times.
         * ```ts
         * expect(spy).to.have.been.called.above(3);
         * spy.should.not.have.been.called.above(3);
         * ```
         */
        above(n: number): Chai.Assertion;

        /**
         * ####.above(n) / .gt(n)
         * Assert that a spy has been called more than ```n``` times.
         * ```ts
         * expect(spy).to.have.been.called.gt(3);
         * spy.should.not.have.been.called.gt(3);
         * ```
         */
        gt(n: number): Chai.Assertion;

        /**
         * ####.below(n) / .lt(n)
         * Assert that a spy has been called fewer than ```n``` times.
         * ```ts
         * expect(spy).to.have.been.called.below(3);
         * spy.should.not.have.been.called.below(3);
         * ```
         */
        below(n: number): Chai.Assertion;

        /**
         * ####.below(n) / .lt(n)
         * Assert that a spy has been called fewer than ```n``` times.
         * ```ts
         * expect(spy).to.have.been.called.lt(3);
         * spy.should.not.have.been.called.lt(3);
         * ```
         */
        lt(n: number): Chai.Assertion;
    }

    interface Been extends Chai.Assertion {
        (): Chai.Assertion;
        called: Called;

        /**
         * ####.first
         * Assert that a spy has been called first.
         * ```ts
         * expect(spy).to.have.been.called.first;
         * expect(spy).to.not.have.been.called.first;
         * spy.should.have.been.called.first;
         * spy.should.not.have.been.called.first;
         * ```
         */
        first: Chai.Assertion;

        /**
         * ####.second
         * Assert that a spy has been called second.
         * ```ts
         * expect(spy).to.have.been.called.second;
         * expect(spy).to.not.have.been.called.second;
         * spy.should.have.been.called.second;
         * spy.should.not.have.been.called.second;
         * ```
         */
        second: Chai.Assertion;

        /**
         * ####.third
         * Assert that a spy has been called third.
         * ```ts
         * expect(spy).to.have.been.called.third;
         * expect(spy).to.not.have.been.called.third;
         * spy.should.have.been.called.third;
         * spy.should.not.have.been.called.third;
         * ```
         */
        third: Chai.Assertion;
    }

    interface With {
        /**
         * ####.with
         * Assert that a spy has been called with a given argument at least once, even if more arguments were provided.
         * ```ts
         * spy('foo');
         * expect(spy).to.have.been.called.with('foo');
         * spy.should.have.been.called.with('foo');
         * ```
         * Will also pass for ```spy('foo', 'bar')``` and ```spy(); spy('foo')```.
         * If used with multiple arguments, assert that a spy has been called with all the given arguments at least once.
         * ```ts
         * spy('foo', 'bar', 1);
         * expect(spy).to.have.been.called.with('bar', 'foo');
         * spy.should.have.been.called.with('bar', 'foo');
         * ```
         */
        (a: any, b?: any, c?: any, d?: any, e?: any, f?: any, g?: any, h?: any, i?: any, j?: any): Chai.Assertion;

        /**
         * ####.with.exactly
         * Similar to .with, but will pass only if the list of arguments is exactly the same as the one provided.
         * ```ts
         * spy();
         * spy('foo', 'bar');
         * expect(spy).to.have.been.called.with.exactly('foo', 'bar');
         * spy.should.have.been.called.with.exactly('foo', 'bar');
         * ```
         * Will not pass for ```spy('foo')```, ```spy('bar')```, ```spy('bar'); spy('foo')```, ```spy('foo'); spy('bar')```, ```spy('bar', 'foo')``` or ```spy('foo', 'bar', 1)```.
         * Can be used for calls with a single argument too.
         */

        exactly(
            a?: any,
            b?: any,
            c?: any,
            d?: any,
            e?: any,
            f?: any,
            g?: any,
            h?: any,
            i?: any,
            j?: any,
        ): Chai.Assertion;
    }

    interface Always {
        with: AlwaysWith;
    }

    interface AlwaysWith {
        /**
         * ####.always.with
         * Assert that every time the spy has been called the argument list contained the given arguments.
         * ```ts
         * spy('foo');
         * spy('foo', 'bar');
         * spy(1, 2, 'foo');
         * expect(spy).to.have.been.called.always.with('foo');
         * spy.should.have.been.called.always.with('foo');
         * ```
         */
        (a: any, b?: any, c?: any, d?: any, e?: any, f?: any, g?: any, h?: any, i?: any, j?: any): Chai.Assertion;

        /**
         * ####.always.with.exactly
         * Assert that the spy has never been called with a different list of arguments than the one provided.
         * ```ts
         * spy('foo');
         * spy('foo');
         * expect(spy).to.have.been.called.always.with.exactly('foo');
         * spy.should.have.been.called.always.with.exactly('foo');
         * ```
         */
        exactly(
            a?: any,
            b?: any,
            c?: any,
            d?: any,
            e?: any,
            f?: any,
            g?: any,
            h?: any,
            i?: any,
            j?: any,
        ): Chai.Assertion;
    }

    interface At {
        /**
         * ####.min(n) / .at.least(n)
         * Assert that a spy has been called minimum of ```n``` times.
         * ```ts
         * expect(spy).to.have.been.called.min(3);
         * expect(spy).to.not.have.been.called.at.least(3);
         * spy.should.have.been.called.at.least(3);
         * spy.should.not.have.been.called.min(3);
         * ```
         */
        least(n: number): Chai.Assertion;

        /**
         * ####.max(n) / .at.most(n)
         * Assert that a spy has been called maximum of ```n``` times.
         * ```ts
         * expect(spy).to.have.been.called.max(3);
         * expect(spy).to.not.have.been.called.at.most(3);
         * spy.should.have.been.called.at.most(3);
         * spy.should.not.have.been.called.max(3);
         * ```
         */
        most(n: number): Chai.Assertion;
    }

    interface Resetable {
        /**
         * #### proxy.reset (function)
         *
         * Resets __spy object parameters for instantiation and reuse
         * @returns proxy spy object
         */
        reset(): this;
    }

    interface SpyFunc0<R> {
        (): R;
    }

    interface SpyFunc1<A1, R> {
        (a: A1): R;
    }

    interface SpyFunc2<A1, A2, R> {
        (a: A1, b: A2): R;
    }

    interface SpyFunc3<A1, A2, A3, R> {
        (a: A1, b: A2, c: A3): R;
    }

    interface SpyFunc4<A1, A2, A3, A4, R> {
        (a: A1, b: A2, c: A3, d: A4): R;
    }

    interface SpyFunc5<A1, A2, A3, A4, A5, R> {
        (a: A1, b: A2, c: A3, d: A4, e: A5): R;
    }

    interface SpyFunc6<A1, A2, A3, A4, A5, A6, R> {
        (a: A1, b: A2, c: A3, d: A4, e: A5, f: A6): R;
    }

    interface SpyFunc7<A1, A2, A3, A4, A5, A6, A7, R> {
        (a: A1, b: A2, c: A3, d: A4, e: A5, f: A6, g: A7): R;
    }

    interface SpyFunc8<A1, A2, A3, A4, A5, A6, A7, A8, R> {
        (a: A1, b: A2, c: A3, d: A4, e: A5, f: A6, g: A7, h: A8): R;
    }

    interface SpyFunc9<A1, A2, A3, A4, A5, A6, A7, A8, A9, R> {
        (a: A1, b: A2, c: A3, d: A4, e: A5, f: A6, g: A7, h: A8, i: A9): R;
    }

    interface SpyFunc10<A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, R> {
        (a: A1, b: A2, c: A3, d: A4, e: A5, f: A6, g: A7, h: A8, i: A9, j: A10): R;
    }

    interface SpyFunc0Proxy<R> extends SpyFunc0<R>, Resetable {
    }

    interface SpyFunc1Proxy<A1, R> extends SpyFunc1<A1, R>, Resetable {
    }

    interface SpyFunc2Proxy<A1, A2, R> extends SpyFunc2<A1, A2, R>, Resetable {
    }

    interface SpyFunc3Proxy<A1, A2, A3, R> extends SpyFunc3<A1, A2, A3, R>, Resetable {
    }

    interface SpyFunc4Proxy<A1, A2, A3, A4, R> extends SpyFunc4<A1, A2, A3, A4, R>, Resetable {
    }

    interface SpyFunc5Proxy<A1, A2, A3, A4, A5, R> extends SpyFunc5<A1, A2, A3, A4, A5, R>, Resetable {
    }

    interface SpyFunc6Proxy<A1, A2, A3, A4, A5, A6, R> extends SpyFunc6<A1, A2, A3, A4, A5, A6, R>, Resetable {
    }

    interface SpyFunc7Proxy<A1, A2, A3, A4, A5, A6, A7, R> extends SpyFunc7<A1, A2, A3, A4, A5, A6, A7, R>, Resetable {
    }

    interface SpyFunc8Proxy<A1, A2, A3, A4, A5, A6, A7, A8, R>
        extends SpyFunc8<A1, A2, A3, A4, A5, A6, A7, A8, R>, Resetable
    {
    }

    interface SpyFunc9Proxy<A1, A2, A3, A4, A5, A6, A7, A8, A9, R>
        extends SpyFunc9<A1, A2, A3, A4, A5, A6, A7, A8, A9, R>, Resetable
    {
    }

    interface SpyFunc10Proxy<A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, R>
        extends SpyFunc10<A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, R>, Resetable
    {
    }
}

declare var spies: ChaiSpies.Spy;

declare module "chai-spies" {
    export = spies;
}