angular-cn/modules/angular2/test/facade/collection_spec.js

73 lines
2.0 KiB
JavaScript

import {describe, it, expect, beforeEach, ddescribe, iit, xit}
from 'angular2/test_lib';
import {List, ListWrapper} from 'angular2/src/facade/collection';
export function main() {
describe('ListWrapper', () => {
var l: List;
describe('splice', () => {
it('should remove sublist of given length and return it', () => {
var list = [1, 2, 3, 4, 5, 6];
expect(ListWrapper.splice(list, 1, 3)).toEqual([2, 3, 4]);
expect(list).toEqual([1, 5, 6]);
});
it('should support negative start', () => {
var list = [1, 2, 3, 4, 5, 6];
expect(ListWrapper.splice(list, -5, 3)).toEqual([2, 3, 4]);
expect(list).toEqual([1, 5, 6]);
});
});
describe('fill', () => {
beforeEach(() => {
l = [1, 2, 3, 4];
});
it('should fill the whole list if neither start nor end are specified', () => {
ListWrapper.fill(l, 9);
expect(l).toEqual([9, 9, 9, 9]);
});
it('should fill up to the end if end is not specified', () => {
ListWrapper.fill(l, 9, 1);
expect(l).toEqual([1, 9, 9, 9]);
});
it('should support negative start', () => {
ListWrapper.fill(l, 9, -1);
expect(l).toEqual([1, 2, 3, 9]);
});
it('should support negative end', () => {
ListWrapper.fill(l, 9, -2, -1);
expect(l).toEqual([1, 2, 9, 4]);
});
});
describe('slice', () => {
beforeEach(() => {
l = [1, 2, 3, 4];
});
it('should return the whole list if neither start nor end are specified', () => {
expect(ListWrapper.slice(l)).toEqual([1, 2, 3, 4]);
});
it('should return up to the end if end is not specified', () => {
expect(ListWrapper.slice(l, 1)).toEqual([2, 3, 4]);
});
it('should support negative start', () => {
expect(ListWrapper.slice(l, -1)).toEqual([4]);
});
it('should support negative end', () => {
expect(ListWrapper.slice(l, -3, -1)).toEqual([2, 3]);
});
});
});
}