blissfuljs/tests/arrays/EachSpec.js

Lightweight helper library for modern browsers.

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

	it("exists", function() {
		expect($.each).to.exist;
	});

	it("copies properties from one object to new object", function () {
		var obj = {
			prop: 1,
			func: function() {}
		};
		var result = $.each(obj, function( prop, value ) {
			return value;
		});

		expect(result).to.deep.equal(obj);
	});

	it("copies properties and inherited properties from one object to new object", function () {
		var parent = function() {};

		parent.prototype.func = function() {};

		var obj = Object.create(parent.prototype);
		obj.prop = 1;

		result = $.each(obj, function( prop, value ) {
			return value;
		});

		expect(result).to.deep.equal(obj);
	});

	it("copies properties from one object to new object if callback context is original object", function () {
		var obj = {
			prop: 1,
			func: function() {}
		};
		var result = $.each(obj, function(prop) {
			return this[prop];
		});

		expect(result).to.deep.equal(obj);
	});

	it("copies properties from object to existing object", function () {
		var obj = {
			prop: 1,
			func: function() {}
		};
		var existing = {
			originalProp: 2
		};
		var result = $.each(obj, function( prop, value ) {
			return value;
		}, existing);

		expect(result.prop).to.equal(obj.prop);
		expect(result.func).to.equal(obj.func);
		expect(result.originalProp).to.equal(existing.originalProp);
	});


});