118 lines
3.5 KiB
TypeScript
118 lines
3.5 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {SpyObject} from '@angular/core/testing/src/testing_internal';
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class TestObj {
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prop: any;
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constructor(prop: any) { this.prop = prop; }
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someFunc(): number { return -1; }
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someComplexFunc(a: any) { return a; }
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}
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class SpyTestObj extends SpyObject {
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constructor() { super(TestObj); }
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}
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{
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describe('testing', () => {
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describe('equality', () => {
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it('should structurally compare objects', () => {
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const expected = new TestObj(new TestObj({'one': [1, 2]}));
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const actual = new TestObj(new TestObj({'one': [1, 2]}));
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const falseActual = new TestObj(new TestObj({'one': [1, 3]}));
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expect(actual).toEqual(expected);
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expect(falseActual).not.toEqual(expected);
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});
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});
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describe('toEqual for Maps', () => {
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it('should detect equality for same reference', () => {
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const m1: Map<string, number> = new Map();
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m1.set('a', 1);
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expect(m1).toEqual(m1);
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});
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it('should detect equality for same content', () => {
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const m1: Map<string, number> = new Map();
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m1.set('a', 1);
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const m2: Map<string, number> = new Map();
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m2.set('a', 1);
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expect(m1).toEqual(m2);
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});
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it('should detect missing entries', () => {
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const m1: Map<string, number> = new Map();
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m1.set('a', 1);
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const m2: Map<string, number> = new Map();
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expect(m1).not.toEqual(m2);
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});
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it('should detect different values', () => {
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const m1: Map<string, number> = new Map();
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m1.set('a', 1);
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const m2: Map<string, number> = new Map();
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m2.set('a', 2);
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expect(m1).not.toEqual(m2);
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});
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it('should detect additional entries', () => {
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const m1: Map<string, number> = new Map();
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m1.set('a', 1);
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const m2: Map<string, number> = new Map();
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m2.set('a', 1);
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m2.set('b', 2);
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expect(m1).not.toEqual(m2);
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});
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});
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describe('spy objects', () => {
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let spyObj: any;
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beforeEach(() => { spyObj = new SpyTestObj(); });
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it('should return a new spy func with no calls',
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() => { expect(spyObj.spy('someFunc')).not.toHaveBeenCalled(); });
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it('should record function calls', () => {
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spyObj.spy('someFunc').and.callFake((a: any, b: any) => a + b);
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expect(spyObj.someFunc(1, 2)).toEqual(3);
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expect(spyObj.spy('someFunc')).toHaveBeenCalledWith(1, 2);
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});
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it('should match multiple function calls', () => {
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spyObj.someFunc(1, 2);
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spyObj.someFunc(3, 4);
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expect(spyObj.spy('someFunc')).toHaveBeenCalledWith(1, 2);
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expect(spyObj.spy('someFunc')).toHaveBeenCalledWith(3, 4);
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});
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it('should match null arguments', () => {
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spyObj.someFunc(null, 'hello');
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expect(spyObj.spy('someFunc')).toHaveBeenCalledWith(null, 'hello');
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});
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it('should match using deep equality', () => {
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spyObj.someComplexFunc([1]);
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expect(spyObj.spy('someComplexFunc')).toHaveBeenCalledWith([1]);
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});
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it('should support stubs', () => {
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const s = SpyObject.stub({'a': 1}, {'b': 2});
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expect(s.a()).toEqual(1);
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expect(s.b()).toEqual(2);
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});
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it('should create spys for all methods',
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() => { expect(() => spyObj.someFunc()).not.toThrow(); });
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});
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});
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}
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