blissfuljs/tests/events/OnceSpec.js

Lightweight helper library for modern browsers.

describe("$.once", function() {

	helpers.fixture("core.html");

	var spy;

	beforeEach(function() {
		spy = sinon.spy();
	});

	it("only calls the listener once", function () {
		$.once(document, {"click": spy});
		helpers.click(document);
		helpers.click(document);
		expect(spy.callCount).to.equal(1);
	});


	it("can be called on elements", function () {
		document._.once({"click": spy});
		helpers.click(document);
		helpers.click(document);
		expect(spy.callCount).to.equal(1);
	});


	it("can be called with string as event", function () {
		document._.once("click", spy);
		helpers.click(document);
		helpers.click(document);
		expect(spy.callCount).to.equal(1);
	});

	it("can have multiple keys passed", function () {
		document._.once({"click": spy, "mousedown": spy});
		helpers.click(document);
		helpers.mouseDown(document);
		expect(spy.callCount).to.equal(2);
	});

});