5d4f1f2008
Add spec for partial constructor, used to handle two-stage application of Angular dependencies and constructor arguments. WTD-518.
67 lines
2.2 KiB
JavaScript
67 lines
2.2 KiB
JavaScript
/*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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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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});
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}
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); |