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117 lines
4.7 KiB
JavaScript
117 lines
4.7 KiB
JavaScript
/*****************************************************************************
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* Open MCT Web, Copyright (c) 2014-2015, United States Government
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* as represented by the Administrator of the National Aeronautics and Space
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* Administration. All rights reserved.
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*
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* Open MCT Web is licensed under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* Open MCT Web includes source code licensed under additional open source
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* licenses. See the Open Source Licenses file (LICENSES.md) included with
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* this source code distribution or the Licensing information page available
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* at runtime from the About dialog for additional information.
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*****************************************************************************/
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/*global define,describe,it,expect,jasmine,beforeEach*/
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define(
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['../../src/directives/MCTScroll'],
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function (MCTScroll) {
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"use strict";
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var EVENT_PROPERTY = "testProperty",
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ATTRIBUTE = "testAttribute",
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EXPRESSION = "some.expression";
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// MCTScroll is the commonality between mct-scroll-x and
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// mct-scroll-y; it gets the event property to watch and
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// the attribute which contains the associated assignable
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// expression.
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describe("An mct-scroll-* directive", function () {
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var mockParse,
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mockParsed,
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mockScope,
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mockElement,
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testAttrs,
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mctScroll;
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beforeEach(function () {
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mockParse = jasmine.createSpy('$parse');
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mockParsed = jasmine.createSpy('parsed');
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mockParsed.assign = jasmine.createSpy('assign');
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mockScope = jasmine.createSpyObj('$scope', ['$watch', '$apply']);
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mockElement = [{ testProperty: 42 }];
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mockElement.on = jasmine.createSpy('on');
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mockParse.andReturn(mockParsed);
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testAttrs = {};
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testAttrs[ATTRIBUTE] = EXPRESSION;
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mctScroll = new MCTScroll(
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mockParse,
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EVENT_PROPERTY,
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ATTRIBUTE
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);
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mctScroll.link(mockScope, mockElement, testAttrs);
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});
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it("is available for attributes", function () {
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expect(mctScroll.restrict).toEqual('A');
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});
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it("does not create an isolate scope", function () {
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expect(mctScroll.scope).toBeUndefined();
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});
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it("watches for changes in observed expression", function () {
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expect(mockScope.$watch).toHaveBeenCalledWith(
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EXPRESSION,
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jasmine.any(Function)
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);
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// Should have been only watch (other tests need this to be true)
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expect(mockScope.$watch.calls.length).toEqual(1);
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});
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it("listens for scroll events", function () {
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expect(mockElement.on).toHaveBeenCalledWith(
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'scroll',
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jasmine.any(Function)
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);
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// Should have been only listener (other tests need this to be true)
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expect(mockElement.on.calls.length).toEqual(1);
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});
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it("publishes initial scroll state", function () {
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expect(mockParse).toHaveBeenCalledWith(EXPRESSION);
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expect(mockParsed.assign).toHaveBeenCalledWith(mockScope, 42);
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});
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it("updates scroll state when scope changes", function () {
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mockScope.$watch.mostRecentCall.args[1](64);
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expect(mockElement[0].testProperty).toEqual(64);
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});
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it("updates scope when scroll state changes", function () {
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mockElement[0].testProperty = 12321;
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mockElement.on.mostRecentCall.args[1]({ target: mockElement[0] });
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expect(mockParsed.assign).toHaveBeenCalledWith(mockScope, 12321);
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expect(mockScope.$apply).toHaveBeenCalledWith(EXPRESSION);
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});
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// This would trigger an infinite digest exception
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it("does not call $apply during construction", function () {
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expect(mockScope.$apply).not.toHaveBeenCalled();
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});
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});
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}
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); |