119 lines
3.8 KiB
TypeScript
119 lines
3.8 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 {Routes} from '../src/config';
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import {createRouterState} from '../src/create_router_state';
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import {recognize} from '../src/recognize';
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import {ActivatedRoute, RouterState, RouterStateSnapshot, advanceActivatedRoute, createEmptyState} from '../src/router_state';
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import {PRIMARY_OUTLET, Params} from '../src/shared';
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import {DefaultUrlSerializer, UrlSegmentGroup, UrlTree} from '../src/url_tree';
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import {TreeNode} from '../src/utils/tree';
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describe('create router state', () => {
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const emptyState = () =>
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createEmptyState(new UrlTree(new UrlSegmentGroup([], {}), {}, null), RootComponent);
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it('should work create new state', () => {
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const state = createRouterState(
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createState(
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[
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{path: 'a', component: ComponentA},
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{path: 'b', component: ComponentB, outlet: 'left'},
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{path: 'c', component: ComponentC, outlet: 'right'}
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],
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'a(left:b//right:c)'),
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emptyState());
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checkActivatedRoute(state.root, RootComponent);
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const c = state.children(state.root);
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checkActivatedRoute(c[0], ComponentA);
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checkActivatedRoute(c[1], ComponentB, 'left');
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checkActivatedRoute(c[2], ComponentC, 'right');
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});
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it('should reuse existing nodes when it can', () => {
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const config = [
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{path: 'a', component: ComponentA}, {path: 'b', component: ComponentB, outlet: 'left'},
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{path: 'c', component: ComponentC, outlet: 'left'}
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];
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const prevState = createRouterState(createState(config, 'a(left:b)'), emptyState());
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advanceState(prevState);
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const state = createRouterState(createState(config, 'a(left:c)'), prevState);
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expect(prevState.root).toBe(state.root);
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const prevC = prevState.children(prevState.root);
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const currC = state.children(state.root);
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expect(prevC[0]).toBe(currC[0]);
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expect(prevC[1]).not.toBe(currC[1]);
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checkActivatedRoute(currC[1], ComponentC, 'left');
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});
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it('should handle componentless routes', () => {
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const config = [{
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path: 'a/:id',
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children: [
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{path: 'b', component: ComponentA}, {path: 'c', component: ComponentB, outlet: 'right'}
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]
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}];
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const prevState = createRouterState(createState(config, 'a/1;p=11/(b//right:c)'), emptyState());
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advanceState(prevState);
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const state = createRouterState(createState(config, 'a/2;p=22/(b//right:c)'), prevState);
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expect(prevState.root).toBe(state.root);
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const prevP = prevState.firstChild(prevState.root);
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const currP = state.firstChild(state.root);
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expect(prevP).toBe(currP);
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const prevC = prevState.children(prevP);
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const currC = state.children(currP);
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expect(currP._futureSnapshot.params).toEqual({id: '2', p: '22'});
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checkActivatedRoute(currC[0], ComponentA);
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checkActivatedRoute(currC[1], ComponentB, 'right');
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});
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});
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function advanceState(state: RouterState): void {
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advanceNode(state._root);
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}
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function advanceNode(node: TreeNode<ActivatedRoute>): void {
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advanceActivatedRoute(node.value);
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node.children.forEach(advanceNode);
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}
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function createState(config: Routes, url: string): RouterStateSnapshot {
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let res: RouterStateSnapshot;
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recognize(RootComponent, config, tree(url), url).forEach(s => res = s);
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return res;
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}
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function checkActivatedRoute(
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actual: ActivatedRoute, cmp: Function, outlet: string = PRIMARY_OUTLET): void {
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if (actual === null) {
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expect(actual).toBeDefined();
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} else {
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expect(actual.component).toBe(cmp);
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expect(actual.outlet).toEqual(outlet);
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}
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}
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function tree(url: string): UrlTree {
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return new DefaultUrlSerializer().parse(url);
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}
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class RootComponent {}
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class ComponentA {}
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class ComponentB {}
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class ComponentC {}
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