80 lines
2.9 KiB
TypeScript
80 lines
2.9 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 {ListWrapper, MapWrapper, StringMapWrapper} from '../src/collection';
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export function main() {
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describe('ListWrapper', () => {
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describe('maximum', () => {
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it('should return the maximal element', () => {
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expect(ListWrapper.maximum([1, 2, 3, 4], x => x)).toEqual(4);
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});
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it('should ignore null values', () => {
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expect(ListWrapper.maximum([null, 2, 3, null], x => x)).toEqual(3);
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});
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it('should use the provided function to determine maximum', () => {
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expect(ListWrapper.maximum([1, 2, 3, 4], x => -x)).toEqual(1);
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});
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it('should return null for an empty list',
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() => { expect(ListWrapper.maximum([], x => x)).toEqual(null); });
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});
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});
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describe('StringMapWrapper', () => {
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describe('equals', () => {
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it('should return true when comparing empty maps',
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() => { expect(StringMapWrapper.equals({}, {})).toBe(true); });
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it('should return true when comparing the same map', () => {
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var m1: {[key: string]: number} = {'a': 1, 'b': 2, 'c': 3};
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expect(StringMapWrapper.equals(m1, m1)).toBe(true);
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});
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it('should return true when comparing different maps with the same keys and values', () => {
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var m1: {[key: string]: number} = {'a': 1, 'b': 2, 'c': 3};
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var m2: {[key: string]: number} = {'a': 1, 'b': 2, 'c': 3};
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expect(StringMapWrapper.equals(m1, m2)).toBe(true);
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});
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it('should return false when comparing maps with different numbers of keys', () => {
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var m1: {[key: string]: number} = {'a': 1, 'b': 2, 'c': 3};
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var m2: {[key: string]: number} = {'a': 1, 'b': 2, 'c': 3, 'd': 4};
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expect(StringMapWrapper.equals(m1, m2)).toBe(false);
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expect(StringMapWrapper.equals(m2, m1)).toBe(false);
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});
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it('should return false when comparing maps with different keys', () => {
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var m1: {[key: string]: number} = {'a': 1, 'b': 2, 'c': 3};
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var m2: {[key: string]: number} = {'a': 1, 'b': 2, 'CC': 3};
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expect(StringMapWrapper.equals(m1, m2)).toBe(false);
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expect(StringMapWrapper.equals(m2, m1)).toBe(false);
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});
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it('should return false when comparing maps with different values', () => {
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var m1: {[key: string]: number} = {'a': 1, 'b': 2, 'c': 3};
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var m2: {[key: string]: number} = {'a': 1, 'b': 20, 'c': 3};
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expect(StringMapWrapper.equals(m1, m2)).toBe(false);
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expect(StringMapWrapper.equals(m2, m1)).toBe(false);
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});
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});
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describe('MapWrapper', () => {
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it('should return a list of keys values', () => {
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var m = new Map();
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m.set('a', 'b');
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expect(MapWrapper.keys(m)).toEqual(['a']);
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expect(MapWrapper.values(m)).toEqual(['b']);
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});
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});
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});
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}
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