683 lines
		
	
	
		
			27 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			683 lines
		
	
	
		
			27 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 {Location} from '@angular/common';
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import {TestBed, inject} from '@angular/core/testing';
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import {RouterTestingModule} from '@angular/router/testing';
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import {of } from 'rxjs';
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import {Routes} from '../src/config';
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import {ChildActivationStart} from '../src/events';
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import {checkGuards as checkGuardsOperator} from '../src/operators/check_guards';
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import {resolveData as resolveDataOperator} from '../src/operators/resolve_data';
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import {NavigationTransition, Router} from '../src/router';
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import {ChildrenOutletContexts} from '../src/router_outlet_context';
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import {RouterStateSnapshot, createEmptyStateSnapshot} from '../src/router_state';
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import {DefaultUrlSerializer, UrlTree} from '../src/url_tree';
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import {getAllRouteGuards} from '../src/utils/preactivation';
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import {TreeNode} from '../src/utils/tree';
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import {Logger, createActivatedRouteSnapshot, provideTokenLogger} from './helpers';
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describe('Router', () => {
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  describe('resetConfig', () => {
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    class TestComponent {}
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    beforeEach(() => { TestBed.configureTestingModule({imports: [RouterTestingModule]}); });
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    it('should copy config to avoid mutations of user-provided objects', () => {
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      const r: Router = TestBed.get(Router);
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      const configs: Routes = [{
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        path: 'a',
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        component: TestComponent,
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        children: [{path: 'b', component: TestComponent}, {path: 'c', component: TestComponent}]
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      }];
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      const children = configs[0].children !;
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      r.resetConfig(configs);
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      const rConfigs = r.config;
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      const rChildren = rConfigs[0].children !;
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      // routes array and shallow copy
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      expect(configs).not.toBe(rConfigs);
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      expect(configs[0]).not.toBe(rConfigs[0]);
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      expect(configs[0].path).toBe(rConfigs[0].path);
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      expect(configs[0].component).toBe(rConfigs[0].component);
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      // children should be new array and routes shallow copied
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      expect(children).not.toBe(rChildren);
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      expect(children[0]).not.toBe(rChildren[0]);
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      expect(children[0].path).toBe(rChildren[0].path);
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      expect(children[1]).not.toBe(rChildren[1]);
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      expect(children[1].path).toBe(rChildren[1].path);
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    });
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  });
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  describe('resetRootComponentType', () => {
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    class NewRootComponent {}
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    beforeEach(() => { TestBed.configureTestingModule({imports: [RouterTestingModule]}); });
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    it('should not change root route when updating the root component', () => {
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      const r: Router = TestBed.get(Router);
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      const root = r.routerState.root;
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      (r as any).resetRootComponentType(NewRootComponent);
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      expect(r.routerState.root).toBe(root);
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    });
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  });
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  describe('setUpLocationChangeListener', () => {
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    beforeEach(() => { TestBed.configureTestingModule({imports: [RouterTestingModule]}); });
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    it('should be idempotent', inject([Router, Location], (r: Router, location: Location) => {
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         r.setUpLocationChangeListener();
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         const a = (<any>r).locationSubscription;
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         r.setUpLocationChangeListener();
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         const b = (<any>r).locationSubscription;
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         expect(a).toBe(b);
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         r.dispose();
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         r.setUpLocationChangeListener();
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         const c = (<any>r).locationSubscription;
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         expect(c).not.toBe(b);
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       }));
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  });
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  describe('PreActivation', () => {
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    const serializer = new DefaultUrlSerializer();
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    const inj = {get: (token: any) => () => `${token}_value`};
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    let empty: RouterStateSnapshot;
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    let logger: Logger;
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    let events: any[];
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    const CA_CHILD = 'canActivate_child';
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    const CA_CHILD_FALSE = 'canActivate_child_false';
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    const CA_CHILD_REDIRECT = 'canActivate_child_redirect';
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    const CAC_CHILD = 'canActivateChild_child';
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    const CAC_CHILD_FALSE = 'canActivateChild_child_false';
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    const CAC_CHILD_REDIRECT = 'canActivateChild_child_redirect';
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    const CA_GRANDCHILD = 'canActivate_grandchild';
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    const CA_GRANDCHILD_FALSE = 'canActivate_grandchild_false';
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    const CA_GRANDCHILD_REDIRECT = 'canActivate_grandchild_redirect';
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    const CDA_CHILD = 'canDeactivate_child';
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    const CDA_CHILD_FALSE = 'canDeactivate_child_false';
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    const CDA_CHILD_REDIRECT = 'canDeactivate_child_redirect';
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    const CDA_GRANDCHILD = 'canDeactivate_grandchild';
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    const CDA_GRANDCHILD_FALSE = 'canDeactivate_grandchild_false';
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    const CDA_GRANDCHILD_REDIRECT = 'canDeactivate_grandchild_redirect';
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    beforeEach(() => {
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      TestBed.configureTestingModule({
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        imports: [RouterTestingModule],
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        providers: [
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          Logger, provideTokenLogger(CA_CHILD), provideTokenLogger(CA_CHILD_FALSE, false),
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          provideTokenLogger(CA_CHILD_REDIRECT, serializer.parse('/canActivate_child_redirect')),
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          provideTokenLogger(CAC_CHILD), provideTokenLogger(CAC_CHILD_FALSE, false),
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          provideTokenLogger(
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              CAC_CHILD_REDIRECT, serializer.parse('/canActivateChild_child_redirect')),
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          provideTokenLogger(CA_GRANDCHILD), provideTokenLogger(CA_GRANDCHILD_FALSE, false),
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          provideTokenLogger(
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              CA_GRANDCHILD_REDIRECT, serializer.parse('/canActivate_grandchild_redirect')),
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          provideTokenLogger(CDA_CHILD), provideTokenLogger(CDA_CHILD_FALSE, false),
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          provideTokenLogger(CDA_CHILD_REDIRECT, serializer.parse('/canDeactivate_child_redirect')),
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          provideTokenLogger(CDA_GRANDCHILD), provideTokenLogger(CDA_GRANDCHILD_FALSE, false),
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          provideTokenLogger(
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              CDA_GRANDCHILD_REDIRECT, serializer.parse('/canDeactivate_grandchild_redirect'))
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        ]
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      });
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    });
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    beforeEach(inject([Logger], (_logger: Logger) => {
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      empty = createEmptyStateSnapshot(serializer.parse('/'), null !);
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      logger = _logger;
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      events = [];
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    }));
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    describe('ChildActivation', () => {
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      it('should run', () => {
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        /**
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         * R  -->  R (ChildActivationStart)
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         *          \
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         *           child
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         */
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        let result = false;
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        const childSnapshot =
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            createActivatedRouteSnapshot({component: 'child', routeConfig: {path: 'child'}});
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        const futureState = new (RouterStateSnapshot as any)(
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            'url', new TreeNode(empty.root, [new TreeNode(childSnapshot, [])]));
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        of ({guards: getAllRouteGuards(futureState, empty, new ChildrenOutletContexts())})
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            .pipe(checkGuardsOperator(TestBed, (evt) => { events.push(evt); }))
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            .subscribe((x) => result = !!x.guardsResult, (e) => { throw e; });
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        expect(result).toBe(true);
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        expect(events.length).toEqual(2);
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        expect(events[0].snapshot).toBe(events[0].snapshot.root);
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        expect(events[1].snapshot.routeConfig.path).toBe('child');
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      });
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      it('should run from top to bottom', () => {
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        /**
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         * R  -->  R (ChildActivationStart)
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         *          \
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         *           child (ChildActivationStart)
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         *            \
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         *             grandchild (ChildActivationStart)
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         *              \
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         *               great grandchild
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         */
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        let result = false;
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        const childSnapshot =
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            createActivatedRouteSnapshot({component: 'child', routeConfig: {path: 'child'}});
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        const grandchildSnapshot = createActivatedRouteSnapshot(
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            {component: 'grandchild', routeConfig: {path: 'grandchild'}});
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        const greatGrandchildSnapshot = createActivatedRouteSnapshot(
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            {component: 'great-grandchild', routeConfig: {path: 'great-grandchild'}});
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        const futureState = new (RouterStateSnapshot as any)(
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            'url',
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            new TreeNode(
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                empty.root, [new TreeNode(childSnapshot, [
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                  new TreeNode(grandchildSnapshot, [new TreeNode(greatGrandchildSnapshot, [])])
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                ])]));
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        of ({guards: getAllRouteGuards(futureState, empty, new ChildrenOutletContexts())})
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            .pipe(checkGuardsOperator(TestBed, (evt) => { events.push(evt); }))
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            .subscribe((x) => result = !!x.guardsResult, (e) => { throw e; });
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        expect(result).toBe(true);
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        expect(events.length).toEqual(6);
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        expect(events[0].snapshot).toBe(events[0].snapshot.root);
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        expect(events[2].snapshot.routeConfig.path).toBe('child');
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        expect(events[4].snapshot.routeConfig.path).toBe('grandchild');
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        expect(events[5].snapshot.routeConfig.path).toBe('great-grandchild');
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      });
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      it('should not run for unchanged routes', () => {
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        /**
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         *         R  -->  R
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         *        / \
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         *   child   child (ChildActivationStart)
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         *            \
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         *             grandchild
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         */
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        let result = false;
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        const childSnapshot =
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            createActivatedRouteSnapshot({component: 'child', routeConfig: {path: 'child'}});
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        const grandchildSnapshot = createActivatedRouteSnapshot(
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            {component: 'grandchild', routeConfig: {path: 'grandchild'}});
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        const currentState = new (RouterStateSnapshot as any)(
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            'url', new TreeNode(empty.root, [new TreeNode(childSnapshot, [])]));
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        const futureState = new (RouterStateSnapshot as any)(
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            'url',
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            new TreeNode(
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                empty.root, [new TreeNode(childSnapshot, [new TreeNode(grandchildSnapshot, [])])]));
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        of ({guards: getAllRouteGuards(futureState, currentState, new ChildrenOutletContexts())})
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            .pipe(checkGuardsOperator(TestBed, (evt) => { events.push(evt); }))
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            .subscribe((x) => result = !!x.guardsResult, (e) => { throw e; });
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        expect(result).toBe(true);
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        expect(events.length).toEqual(2);
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        expect(events[0].snapshot).not.toBe(events[0].snapshot.root);
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        expect(events[0].snapshot.routeConfig.path).toBe('child');
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      });
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      it('should skip multiple unchanged routes but fire for all changed routes', () => {
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        /**
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         *         R  -->  R
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         *            / \
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         *       child   child
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         *          /     \
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         * grandchild      grandchild (ChildActivationStart)
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         *                  \
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         *                   greatgrandchild (ChildActivationStart)
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         *                    \
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         *                     great-greatgrandchild
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         */
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        let result = false;
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        const childSnapshot =
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            createActivatedRouteSnapshot({component: 'child', routeConfig: {path: 'child'}});
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        const grandchildSnapshot = createActivatedRouteSnapshot(
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            {component: 'grandchild', routeConfig: {path: 'grandchild'}});
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        const greatGrandchildSnapshot = createActivatedRouteSnapshot(
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            {component: 'greatgrandchild', routeConfig: {path: 'greatgrandchild'}});
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        const greatGreatGrandchildSnapshot = createActivatedRouteSnapshot(
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            {component: 'great-greatgrandchild', routeConfig: {path: 'great-greatgrandchild'}});
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        const currentState = new (RouterStateSnapshot as any)(
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            'url',
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            new TreeNode(
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                empty.root, [new TreeNode(childSnapshot, [new TreeNode(grandchildSnapshot, [])])]));
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        const futureState = new (RouterStateSnapshot as any)(
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            'url',
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            new TreeNode(
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                empty.root,
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                [new TreeNode(
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                    childSnapshot, [new TreeNode(grandchildSnapshot, [
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                      new TreeNode(
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                          greatGrandchildSnapshot, [new TreeNode(greatGreatGrandchildSnapshot, [])])
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                    ])])]));
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        of ({guards: getAllRouteGuards(futureState, currentState, new ChildrenOutletContexts())})
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            .pipe(checkGuardsOperator(TestBed, (evt) => { events.push(evt); }))
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            .subscribe((x) => result = !!x.guardsResult, (e) => { throw e; });
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        expect(result).toBe(true);
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        expect(events.length).toEqual(4);
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        expect(events[0] instanceof ChildActivationStart).toBe(true);
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        expect(events[0].snapshot).not.toBe(events[0].snapshot.root);
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        expect(events[0].snapshot.routeConfig.path).toBe('grandchild');
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        expect(events[2].snapshot.routeConfig.path).toBe('greatgrandchild');
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      });
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    });
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    describe('guards', () => {
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      it('should run CanActivate checks', () => {
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        /**
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         * R  -->  R
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         *          \
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         *           child (CA, CAC)
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         *            \
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         *             grandchild (CA)
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         */
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        const childSnapshot = createActivatedRouteSnapshot({
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          component: 'child',
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          routeConfig: {
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            canActivate: [CA_CHILD],
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            canActivateChild: [CAC_CHILD]
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          }
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        });
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        const grandchildSnapshot = createActivatedRouteSnapshot(
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            {component: 'grandchild', routeConfig: {canActivate: [CA_GRANDCHILD]}});
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        const futureState = new (RouterStateSnapshot as any)(
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            'url',
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            new TreeNode(
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                empty.root, [new TreeNode(childSnapshot, [new TreeNode(grandchildSnapshot, [])])]));
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        checkGuards(futureState, empty, TestBed, (result) => {
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          expect(result).toBe(true);
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          expect(logger.logs).toEqual([CA_CHILD, CAC_CHILD, CA_GRANDCHILD]);
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        });
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      });
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      it('should not run grandchild guards if child fails', () => {
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        /**
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         * R  -->  R
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         *          \
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         *           child (CA: x, CAC)
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         *            \
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         *             grandchild (CA)
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         */
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        const childSnapshot = createActivatedRouteSnapshot({
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          component: 'child',
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          routeConfig: {canActivate: [CA_CHILD_FALSE], canActivateChild: [CAC_CHILD]}
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        });
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        const grandchildSnapshot = createActivatedRouteSnapshot(
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            {component: 'grandchild', routeConfig: {canActivate: [CA_GRANDCHILD]}});
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        const futureState = new (RouterStateSnapshot as any)(
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            'url',
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            new TreeNode(
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                empty.root, [new TreeNode(childSnapshot, [new TreeNode(grandchildSnapshot, [])])]));
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        checkGuards(futureState, empty, TestBed, (result) => {
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          expect(result).toBe(false);
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          expect(logger.logs).toEqual([CA_CHILD_FALSE]);
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        });
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      });
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      it('should not run grandchild guards if child canActivateChild fails', () => {
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        /**
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         * R  -->  R
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         *          \
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         *           child (CA, CAC: x)
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         *            \
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         *             grandchild (CA)
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         */
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        const childSnapshot = createActivatedRouteSnapshot({
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          component: 'child',
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          routeConfig: {canActivate: [CA_CHILD], canActivateChild: [CAC_CHILD_FALSE]}
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        });
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        const grandchildSnapshot = createActivatedRouteSnapshot(
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            {component: 'grandchild', routeConfig: {canActivate: [CA_GRANDCHILD]}});
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        const futureState = new (RouterStateSnapshot as any)(
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            'url',
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            new TreeNode(
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                empty.root, [new TreeNode(childSnapshot, [new TreeNode(grandchildSnapshot, [])])]));
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        checkGuards(futureState, empty, TestBed, (result) => {
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          expect(result).toBe(false);
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          expect(logger.logs).toEqual([CA_CHILD, CAC_CHILD_FALSE]);
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        });
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      });
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      it('should run deactivate guards before activate guards', () => {
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        /**
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         *      R  -->  R
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         *     /         \
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         *    prev (CDA)  child (CA)
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         *                 \
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         *                  grandchild (CA)
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         */
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        const prevSnapshot = createActivatedRouteSnapshot(
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            {component: 'prev', routeConfig: {canDeactivate: [CDA_CHILD]}});
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        const childSnapshot = createActivatedRouteSnapshot({
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          component: 'child',
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          routeConfig: {canActivate: [CA_CHILD], canActivateChild: [CAC_CHILD]}
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        });
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        const grandchildSnapshot = createActivatedRouteSnapshot(
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            {component: 'grandchild', routeConfig: {canActivate: [CA_GRANDCHILD]}});
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        const currentState = new (RouterStateSnapshot as any)(
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            'prev', new TreeNode(empty.root, [new TreeNode(prevSnapshot, [])]));
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        const futureState = new (RouterStateSnapshot as any)(
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            'url',
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            new TreeNode(
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                empty.root, [new TreeNode(childSnapshot, [new TreeNode(grandchildSnapshot, [])])]));
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        checkGuards(futureState, currentState, TestBed, (result) => {
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          expect(logger.logs).toEqual([CDA_CHILD, CA_CHILD, CAC_CHILD, CA_GRANDCHILD]);
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        });
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      });
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 | 
						|
      it('should not run activate if deactivate fails guards', () => {
 | 
						|
        /**
 | 
						|
         *      R  -->     R
 | 
						|
         *     /            \
 | 
						|
         *    prev (CDA: x)  child (CA)
 | 
						|
         *                    \
 | 
						|
         *                     grandchild (CA)
 | 
						|
         */
 | 
						|
 | 
						|
        const prevSnapshot = createActivatedRouteSnapshot(
 | 
						|
            {component: 'prev', routeConfig: {canDeactivate: [CDA_CHILD_FALSE]}});
 | 
						|
        const childSnapshot = createActivatedRouteSnapshot({
 | 
						|
          component: 'child',
 | 
						|
          routeConfig: {canActivate: [CA_CHILD], canActivateChild: [CAC_CHILD]}
 | 
						|
        });
 | 
						|
        const grandchildSnapshot = createActivatedRouteSnapshot(
 | 
						|
            {component: 'grandchild', routeConfig: {canActivate: [CA_GRANDCHILD]}});
 | 
						|
 | 
						|
        const currentState = new (RouterStateSnapshot as any)(
 | 
						|
            'prev', new TreeNode(empty.root, [new TreeNode(prevSnapshot, [])]));
 | 
						|
        const futureState = new (RouterStateSnapshot as any)(
 | 
						|
            'url',
 | 
						|
            new TreeNode(
 | 
						|
                empty.root, [new TreeNode(childSnapshot, [new TreeNode(grandchildSnapshot, [])])]));
 | 
						|
 | 
						|
        checkGuards(futureState, currentState, TestBed, (result) => {
 | 
						|
          expect(result).toBe(false);
 | 
						|
          expect(logger.logs).toEqual([CDA_CHILD_FALSE]);
 | 
						|
        });
 | 
						|
      });
 | 
						|
      it('should deactivate from bottom up, then activate top down', () => {
 | 
						|
        /**
 | 
						|
         *      R     -->      R
 | 
						|
         *     /                \
 | 
						|
         *    prevChild (CDA)    child (CA)
 | 
						|
         *   /                    \
 | 
						|
         *  prevGrandchild(CDA)    grandchild (CA)
 | 
						|
         */
 | 
						|
 | 
						|
        const prevChildSnapshot = createActivatedRouteSnapshot(
 | 
						|
            {component: 'prev_child', routeConfig: {canDeactivate: [CDA_CHILD]}});
 | 
						|
        const prevGrandchildSnapshot = createActivatedRouteSnapshot(
 | 
						|
            {component: 'prev_grandchild', routeConfig: {canDeactivate: [CDA_GRANDCHILD]}});
 | 
						|
        const childSnapshot = createActivatedRouteSnapshot({
 | 
						|
          component: 'child',
 | 
						|
          routeConfig: {canActivate: [CA_CHILD], canActivateChild: [CAC_CHILD]}
 | 
						|
        });
 | 
						|
        const grandchildSnapshot = createActivatedRouteSnapshot(
 | 
						|
            {component: 'grandchild', routeConfig: {canActivate: [CA_GRANDCHILD]}});
 | 
						|
 | 
						|
        const currentState = new (RouterStateSnapshot as any)(
 | 
						|
            'prev', new TreeNode(empty.root, [
 | 
						|
              new TreeNode(prevChildSnapshot, [new TreeNode(prevGrandchildSnapshot, [])])
 | 
						|
            ]));
 | 
						|
 | 
						|
        const futureState = new (RouterStateSnapshot as any)(
 | 
						|
            'url',
 | 
						|
            new TreeNode(
 | 
						|
                empty.root, [new TreeNode(childSnapshot, [new TreeNode(grandchildSnapshot, [])])]));
 | 
						|
 | 
						|
        checkGuards(futureState, currentState, TestBed, (result) => {
 | 
						|
          expect(result).toBe(true);
 | 
						|
          expect(logger.logs).toEqual([
 | 
						|
            CDA_GRANDCHILD, CDA_CHILD, CA_CHILD, CAC_CHILD, CA_GRANDCHILD
 | 
						|
          ]);
 | 
						|
        });
 | 
						|
 | 
						|
        logger.empty();
 | 
						|
        checkGuards(currentState, futureState, TestBed, (result) => {
 | 
						|
          expect(result).toBe(true);
 | 
						|
          expect(logger.logs).toEqual([]);
 | 
						|
        });
 | 
						|
      });
 | 
						|
 | 
						|
      describe('UrlTree', () => {
 | 
						|
        it('should allow return of UrlTree from CanActivate', () => {
 | 
						|
          /**
 | 
						|
           * R  -->  R
 | 
						|
           *          \
 | 
						|
           *           child (CA: redirect)
 | 
						|
           */
 | 
						|
 | 
						|
          const childSnapshot = createActivatedRouteSnapshot({
 | 
						|
            component: 'child',
 | 
						|
            routeConfig: {
 | 
						|
 | 
						|
              canActivate: [CA_CHILD_REDIRECT]
 | 
						|
            }
 | 
						|
          });
 | 
						|
 | 
						|
          const futureState = new (RouterStateSnapshot as any)(
 | 
						|
              'url', new TreeNode(empty.root, [new TreeNode(childSnapshot, [])]));
 | 
						|
 | 
						|
          checkGuards(futureState, empty, TestBed, (result) => {
 | 
						|
            expect(serializer.serialize(result as UrlTree)).toBe('/' + CA_CHILD_REDIRECT);
 | 
						|
            expect(logger.logs).toEqual([CA_CHILD_REDIRECT]);
 | 
						|
          });
 | 
						|
        });
 | 
						|
 | 
						|
        it('should allow return of UrlTree from CanActivateChild', () => {
 | 
						|
          /**
 | 
						|
           * R  -->  R
 | 
						|
           *          \
 | 
						|
           *           child (CAC: redirect)
 | 
						|
           *            \
 | 
						|
           *             grandchild (CA)
 | 
						|
           */
 | 
						|
 | 
						|
          const childSnapshot = createActivatedRouteSnapshot(
 | 
						|
              {component: 'child', routeConfig: {canActivateChild: [CAC_CHILD_REDIRECT]}});
 | 
						|
          const grandchildSnapshot = createActivatedRouteSnapshot(
 | 
						|
              {component: 'grandchild', routeConfig: {canActivate: [CA_GRANDCHILD]}});
 | 
						|
 | 
						|
          const futureState = new (RouterStateSnapshot as any)(
 | 
						|
              'url', new TreeNode(
 | 
						|
                         empty.root,
 | 
						|
                         [new TreeNode(childSnapshot, [new TreeNode(grandchildSnapshot, [])])]));
 | 
						|
 | 
						|
          checkGuards(futureState, empty, TestBed, (result) => {
 | 
						|
            expect(serializer.serialize(result as UrlTree)).toBe('/' + CAC_CHILD_REDIRECT);
 | 
						|
            expect(logger.logs).toEqual([CAC_CHILD_REDIRECT]);
 | 
						|
          });
 | 
						|
        });
 | 
						|
 | 
						|
        it('should allow return of UrlTree from a child CanActivate', () => {
 | 
						|
          /**
 | 
						|
           * R  -->  R
 | 
						|
           *          \
 | 
						|
           *           child (CAC)
 | 
						|
           *            \
 | 
						|
           *             grandchild (CA: redirect)
 | 
						|
           */
 | 
						|
 | 
						|
          const childSnapshot = createActivatedRouteSnapshot(
 | 
						|
              {component: 'child', routeConfig: {canActivateChild: [CAC_CHILD]}});
 | 
						|
          const grandchildSnapshot = createActivatedRouteSnapshot(
 | 
						|
              {component: 'grandchild', routeConfig: {canActivate: [CA_GRANDCHILD_REDIRECT]}});
 | 
						|
 | 
						|
          const futureState = new (RouterStateSnapshot as any)(
 | 
						|
              'url', new TreeNode(
 | 
						|
                         empty.root,
 | 
						|
                         [new TreeNode(childSnapshot, [new TreeNode(grandchildSnapshot, [])])]));
 | 
						|
 | 
						|
          checkGuards(futureState, empty, TestBed, (result) => {
 | 
						|
            expect(serializer.serialize(result as UrlTree)).toBe('/' + CA_GRANDCHILD_REDIRECT);
 | 
						|
            expect(logger.logs).toEqual([CAC_CHILD, CA_GRANDCHILD_REDIRECT]);
 | 
						|
          });
 | 
						|
        });
 | 
						|
 | 
						|
        it('should allow return of UrlTree from a child CanDeactivate', () => {
 | 
						|
          /**
 | 
						|
           *      R  -->            R
 | 
						|
           *     /                   \
 | 
						|
           *    prev (CDA: redirect)  child (CA)
 | 
						|
           *                           \
 | 
						|
           *                            grandchild (CA)
 | 
						|
           */
 | 
						|
 | 
						|
          const prevSnapshot = createActivatedRouteSnapshot(
 | 
						|
              {component: 'prev', routeConfig: {canDeactivate: [CDA_CHILD_REDIRECT]}});
 | 
						|
          const childSnapshot = createActivatedRouteSnapshot({
 | 
						|
            component: 'child',
 | 
						|
            routeConfig: {canActivate: [CA_CHILD], canActivateChild: [CAC_CHILD]}
 | 
						|
          });
 | 
						|
          const grandchildSnapshot = createActivatedRouteSnapshot(
 | 
						|
              {component: 'grandchild', routeConfig: {canActivate: [CA_GRANDCHILD]}});
 | 
						|
 | 
						|
          const currentState = new (RouterStateSnapshot as any)(
 | 
						|
              'prev', new TreeNode(empty.root, [new TreeNode(prevSnapshot, [])]));
 | 
						|
          const futureState = new (RouterStateSnapshot as any)(
 | 
						|
              'url', new TreeNode(
 | 
						|
                         empty.root,
 | 
						|
                         [new TreeNode(childSnapshot, [new TreeNode(grandchildSnapshot, [])])]));
 | 
						|
 | 
						|
          checkGuards(futureState, currentState, TestBed, (result) => {
 | 
						|
            expect(serializer.serialize(result as UrlTree)).toBe('/' + CDA_CHILD_REDIRECT);
 | 
						|
            expect(logger.logs).toEqual([CDA_CHILD_REDIRECT]);
 | 
						|
          });
 | 
						|
        });
 | 
						|
 | 
						|
      });
 | 
						|
    });
 | 
						|
 | 
						|
    describe('resolve', () => {
 | 
						|
 | 
						|
      it('should resolve data', () => {
 | 
						|
        /**
 | 
						|
         * R  -->  R
 | 
						|
         *          \
 | 
						|
         *           a
 | 
						|
         */
 | 
						|
        const r = {data: 'resolver'};
 | 
						|
        const n = createActivatedRouteSnapshot({component: 'a', resolve: r});
 | 
						|
        const s = new (RouterStateSnapshot as any)(
 | 
						|
            'url', new TreeNode(empty.root, [new TreeNode(n, [])]));
 | 
						|
 | 
						|
        checkResolveData(s, empty, inj, () => {
 | 
						|
          expect(s.root.firstChild !.data).toEqual({data: 'resolver_value'});
 | 
						|
        });
 | 
						|
      });
 | 
						|
 | 
						|
      it('should wait for the parent resolve to complete', () => {
 | 
						|
        /**
 | 
						|
         * R  -->  R
 | 
						|
         *          \
 | 
						|
         *           null (resolve: parentResolve)
 | 
						|
         *            \
 | 
						|
         *             b (resolve: childResolve)
 | 
						|
         */
 | 
						|
        const parentResolve = {data: 'resolver'};
 | 
						|
        const childResolve = {};
 | 
						|
 | 
						|
        const parent = createActivatedRouteSnapshot({component: null !, resolve: parentResolve});
 | 
						|
        const child = createActivatedRouteSnapshot({component: 'b', resolve: childResolve});
 | 
						|
 | 
						|
        const s = new (RouterStateSnapshot as any)(
 | 
						|
            'url', new TreeNode(empty.root, [new TreeNode(parent, [new TreeNode(child, [])])]));
 | 
						|
 | 
						|
        const inj = {get: (token: any) => () => Promise.resolve(`${token}_value`)};
 | 
						|
 | 
						|
        checkResolveData(s, empty, inj, () => {
 | 
						|
          expect(s.root.firstChild !.firstChild !.data).toEqual({data: 'resolver_value'});
 | 
						|
        });
 | 
						|
      });
 | 
						|
 | 
						|
      it('should copy over data when creating a snapshot', () => {
 | 
						|
        /**
 | 
						|
         * R  -->  R         -->         R
 | 
						|
         *          \                     \
 | 
						|
         *           n1 (resolve: r1)      n21 (resolve: r1)
 | 
						|
         *                                  \
 | 
						|
         *                                   n22 (resolve: r2)
 | 
						|
         */
 | 
						|
        const r1 = {data: 'resolver1'};
 | 
						|
        const r2 = {data: 'resolver2'};
 | 
						|
 | 
						|
        const n1 = createActivatedRouteSnapshot({component: 'a', resolve: r1});
 | 
						|
        const s1 = new (RouterStateSnapshot as any)(
 | 
						|
            'url', new TreeNode(empty.root, [new TreeNode(n1, [])]));
 | 
						|
        checkResolveData(s1, empty, inj, () => {});
 | 
						|
 | 
						|
        const n21 = createActivatedRouteSnapshot({component: 'a', resolve: r1});
 | 
						|
        const n22 = createActivatedRouteSnapshot({component: 'b', resolve: r2});
 | 
						|
        const s2 = new (RouterStateSnapshot as any)(
 | 
						|
            'url', new TreeNode(empty.root, [new TreeNode(n21, [new TreeNode(n22, [])])]));
 | 
						|
        checkResolveData(s2, s1, inj, () => {
 | 
						|
          expect(s2.root.firstChild !.data).toEqual({data: 'resolver1_value'});
 | 
						|
          expect(s2.root.firstChild !.firstChild !.data).toEqual({data: 'resolver2_value'});
 | 
						|
        });
 | 
						|
      });
 | 
						|
    });
 | 
						|
  });
 | 
						|
});
 | 
						|
 | 
						|
function checkResolveData(
 | 
						|
    future: RouterStateSnapshot, curr: RouterStateSnapshot, injector: any, check: any): void {
 | 
						|
  of ({
 | 
						|
    guards: getAllRouteGuards(future, curr, new ChildrenOutletContexts())
 | 
						|
  } as Partial<NavigationTransition>)
 | 
						|
      .pipe(resolveDataOperator('emptyOnly', injector))
 | 
						|
      .subscribe(check, (e) => { throw e; });
 | 
						|
}
 | 
						|
 | 
						|
function checkGuards(
 | 
						|
    future: RouterStateSnapshot, curr: RouterStateSnapshot, injector: any,
 | 
						|
    check: (result: boolean | UrlTree) => void): void {
 | 
						|
  of ({
 | 
						|
    guards: getAllRouteGuards(future, curr, new ChildrenOutletContexts())
 | 
						|
  } as Partial<NavigationTransition>)
 | 
						|
      .pipe(checkGuardsOperator(injector))
 | 
						|
      .subscribe({
 | 
						|
        next(t) {
 | 
						|
          if (t.guardsResult === null) throw new Error('Guard result expected');
 | 
						|
          return check(t.guardsResult);
 | 
						|
        },
 | 
						|
        error(e) { throw e; }
 | 
						|
      });
 | 
						|
}
 |