@qooxdoo/framework/source/class/qx/test/event/Emitter.js

The JS Framework for Coders

/* ************************************************************************

   qooxdoo - the new era of web development

   http://qooxdoo.org

   Copyright:
     2007-2012 1&1 Internet AG, Germany, http://www.1und1.de

   License:
     MIT: https://opensource.org/licenses/MIT
     See the LICENSE file in the project's top-level directory for details.

   Authors:
     * Martin Wittemann (wittemann)

************************************************************************ */

qx.Class.define("qx.test.event.Emitter", {
  extend: qx.dev.unit.TestCase,
  include: [qx.dev.unit.MMock, qx.dev.unit.MRequirements],

  members: {
    __ee: null,

    setUp() {
      this.__ee = new qx.event.Emitter();
    },

    testOnOff() {
      var spy = this.spy();
      this.__ee.on("test", spy, this);
      this.__ee.emit("test");
      this.assertCalledOnce(spy);
      this.assertCalledOn(spy, this);

      this.__ee.off("test", spy, this);
      this.__ee.emit("test");
      this.assertCalledOnce(spy);
    },

    testOnOffById() {
      var spy = this.spy();
      var id = this.__ee.on("test", spy, this);
      this.__ee.emit("test");
      this.assertCalledOnce(spy);

      this.__ee.offById(id);
      this.__ee.emit("test");
      this.assertCalledOnce(spy);
    },

    testOffReturnId() {
      var spy = this.spy();
      this.__ee.on("test", spy, this);
      var id = this.__ee.on("test2", spy, this);

      var returnId = this.__ee.off("test2", spy, this);
      this.assertEquals(id, returnId);
    },

    testAddRemove() {
      var spy = this.spy();
      this.__ee.addListener("test", spy, this);
      this.__ee.emit("test");
      this.assertCalledOnce(spy);

      this.__ee.removeListener("test", spy, this);
      this.__ee.emit("test");
      this.assertCalledOnce(spy);
    },

    /**
     * @lint ignoreDeprecated(alert, eval)
     */
    testAddAsyncFunction() {
      this.require(["asyncFunctions"]);
      var f = eval("f = async function(){};");
      this.__ee.addListener("test", f, this);
      this.__ee.emit("test");
      this.__ee.removeListener("test", f, this);
      this.__ee.emit("test");
    },

    testAddRemoveById() {
      var spy = this.spy();
      var id = this.__ee.addListener("test", spy, this);
      this.__ee.emit("test");
      this.assertCalledOnce(spy);

      this.__ee.removeListenerById(id);
      this.__ee.emit("test");
      this.assertCalledOnce(spy);
    },

    testOnTwoListeners() {
      var spy1 = this.spy();
      var spy2 = this.spy();

      this.__ee.on("test", spy1);
      this.__ee.on("test", spy2);
      this.__ee.emit("test");
      this.assertCalledOnce(spy1);
      this.assertCalledOnce(spy2);

      this.__ee.off("test", spy1);
      this.__ee.emit("test");
      this.assertCalledOnce(spy1);
      this.assertCalledTwice(spy2);
    },

    testTwoEvents() {
      var spy1 = this.spy();
      var spy2 = this.spy();

      this.__ee.on("test1", spy1);
      this.__ee.on("test2", spy2);
      this.__ee.emit("test1");
      this.assertCalledOnce(spy1);
      this.assertNotCalled(spy2);

      this.__ee.emit("test2");
      this.assertCalledOnce(spy1);
      this.assertCalledOnce(spy2);
    },

    testOnce() {
      var spy = this.spy();

      this.__ee.once("test", spy);
      this.__ee.emit("test");
      this.assertCalledOnce(spy);

      this.__ee.emit("test");
      this.assertCalledOnce(spy);
    },

    testAddListenerOnce() {
      var spy = this.spy();

      this.__ee.addListenerOnce("test", spy);
      this.__ee.emit("test");
      this.assertCalledOnce(spy);

      this.__ee.emit("test");
      this.assertCalledOnce(spy);
    },

    testOnAny() {
      var spy = this.spy();

      this.__ee.on("*", spy);
      this.__ee.emit("test");
      this.assertCalledOnce(spy);

      this.__ee.emit("test2");
      this.assertCalledTwice(spy);
    },

    testAddListenerAny() {
      var spy = this.spy();

      this.__ee.addListener("*", spy);
      this.__ee.emit("test");
      this.assertCalledOnce(spy);

      this.__ee.emit("test2");
      this.assertCalledTwice(spy);
    },

    testEmitData() {
      var spy = this.spy();
      this.__ee.on("test", spy);
      this.__ee.emit("test", 123);
      this.assertCalledWith(spy, 123);
    },

    testEmitOrder() {
      var i = 0;
      this.__ee.on(
        "test",
        function () {
          i++;
          this.assertEquals(1, i);
        },
        this
      );

      this.__ee.on(
        "test",
        function () {
          i++;
          this.assertEquals(2, i);
        },
        this
      );

      this.__ee.emit("test");
      this.assertEquals(2, i);
    }
  }
});