FreeAllMedia/mrt

import Component from "../../lib/component/component.js";

const useVoice = Symbol();

class Person extends Component {
    initialize() {
        this.link("arm", Arm);
    }

    yell() {
        this[useVoice]();
    }

    [useVoice]() {}
}

class Arm extends Component {
    initialize(side) {
        this.properties("side");
        this.side(side);
    }
}

describe("component.link (custom function)", () => {
    let person;

    beforeEach(() => {
        person = new Person();
    });

    it("should copy custom functions from parent links to child links", () => {
        person.arm("left").should.respondTo("yell");
    });

    it("should bind the parent function to the child link", () => {
        (() => {
            person
                .arm("left")
                .yell("Wubba Lubba Dub Dub!");
        }).should.not.throw();
    });
});