98 lines
3.9 KiB
JavaScript
98 lines
3.9 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,Promise,describe,it,expect,beforeEach*/
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/**
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* PartialConstructorSpec. Created by vwoeltje on 11/6/14.
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*/
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define(
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["../../src/register/PartialConstructor"],
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function (PartialConstructor) {
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"use strict";
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describe("A partial constructor", function () {
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var result,
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PartializedConstructor;
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function RegularConstructor(a, b, c, d) {
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result = {
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a: a,
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b: b,
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c: c,
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d: d
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};
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return result;
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}
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function ThisStyleConstructor(x, y, z) {
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this.message = [x, y, z].join(" ");
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}
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RegularConstructor.someProperty = "test property";
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beforeEach(function () {
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result = undefined;
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PartializedConstructor = new PartialConstructor(RegularConstructor);
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});
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it("splits a constructor call into two stages", function () {
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var RemainingConstructor = new PartializedConstructor("test"),
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instance;
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// first call should not have hit constructor
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expect(result).toBeUndefined();
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// Call again
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instance = new RemainingConstructor(1, 2, 3);
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expect(result).toEqual({
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a: "test",
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b: 1,
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c: 2,
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d: 3
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});
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// Should have returned the constructor's value
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expect(instance).toEqual(result);
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});
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it("handles this-style constructors", function () {
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var Partialized = new PartialConstructor(ThisStyleConstructor),
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Remaining = new Partialized("this"),
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instance = new Remaining("is", "correct");
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// We should have everything we put in "this", and we
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// should still pass an instanceof test.g
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expect(instance.message).toEqual("this is correct");
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expect(instance).toEqual(new ThisStyleConstructor("this", "is", "correct"));
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expect(instance instanceof ThisStyleConstructor).toBeTruthy();
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});
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it("retains static properties after partialization", function () {
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// This string should appear after invoking the partialized
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// constructor, such that the resulting inner constructor
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// exposes these as if we were looking at the original
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// RegularConstructor.
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expect(new PartializedConstructor().someProperty).toEqual("test property");
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});
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});
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}
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); |