angular-docs-cn/modules/angular2/test/router/integration/lifecycle_hook_spec.ts

610 lines
22 KiB
TypeScript

import {
ComponentFixture,
AsyncTestCompleter,
TestComponentBuilder,
beforeEach,
ddescribe,
xdescribe,
describe,
el,
expect,
iit,
inject,
beforeEachProviders,
it,
xit
} from 'angular2/testing_internal';
import {provide, Component, Injector, Inject, View} from 'angular2/core';
import {isPresent} from 'angular2/src/facade/lang';
import {
Promise,
PromiseWrapper,
PromiseCompleter,
EventEmitter,
ObservableWrapper
} from 'angular2/src/facade/async';
import {Router, RouterOutlet, RouterLink, RouteParams} from 'angular2/router';
import {
RouteConfig,
Route,
AuxRoute,
AsyncRoute,
Redirect
} from 'angular2/src/router/route_config_decorator';
import {
OnActivate,
OnDeactivate,
OnReuse,
CanDeactivate,
CanReuse
} from 'angular2/src/router/interfaces';
import {CanActivate} from 'angular2/src/router/lifecycle_annotations';
import {ComponentInstruction} from 'angular2/src/router/instruction';
import {TEST_ROUTER_PROVIDERS, RootCmp, compile} from './util';
var cmpInstanceCount;
var log: string[];
var eventBus: EventEmitter<any>;
var completer: PromiseCompleter<any>;
export function main() {
describe('Router lifecycle hooks', () => {
var tcb: TestComponentBuilder;
var fixture: ComponentFixture;
var rtr;
beforeEachProviders(() => TEST_ROUTER_PROVIDERS);
beforeEach(inject([TestComponentBuilder, Router], (tcBuilder, router) => {
tcb = tcBuilder;
rtr = router;
cmpInstanceCount = 0;
log = [];
eventBus = new EventEmitter();
}));
it('should call the routerOnActivate hook', inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((rtc) => {fixture = rtc})
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => rtr.navigateByUrl('/on-activate'))
.then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('activate cmp');
expect(log).toEqual(['activate: null -> /on-activate']);
async.done();
});
}));
it('should wait for a parent component\'s routerOnActivate hook to resolve before calling its child\'s',
inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((rtc) => {fixture = rtc})
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => {
ObservableWrapper.subscribe<string>(eventBus, (ev) => {
if (ev.startsWith('parent activate')) {
completer.resolve(true);
}
});
rtr.navigateByUrl('/parent-activate/child-activate')
.then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('parent {activate cmp}');
expect(log).toEqual([
'parent activate: null -> /parent-activate',
'activate: null -> /child-activate'
]);
async.done();
});
});
}));
it('should call the routerOnDeactivate hook', inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((rtc) => {fixture = rtc})
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => rtr.navigateByUrl('/on-deactivate'))
.then((_) => rtr.navigateByUrl('/a'))
.then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('A');
expect(log).toEqual(['deactivate: /on-deactivate -> /a']);
async.done();
});
}));
it('should wait for a child component\'s routerOnDeactivate hook to resolve before calling its parent\'s',
inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((rtc) => {fixture = rtc})
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => rtr.navigateByUrl('/parent-deactivate/child-deactivate'))
.then((_) => {
ObservableWrapper.subscribe<string>(eventBus, (ev) => {
if (ev.startsWith('deactivate')) {
completer.resolve(true);
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('parent {deactivate cmp}');
}
});
rtr.navigateByUrl('/a').then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('A');
expect(log).toEqual([
'deactivate: /child-deactivate -> null',
'parent deactivate: /parent-deactivate -> /a'
]);
async.done();
});
});
}));
it('should reuse a component when the routerCanReuse hook returns true',
inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((rtc) => {fixture = rtc})
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => rtr.navigateByUrl('/on-reuse/1/a'))
.then((_) => {
fixture.detectChanges();
expect(log).toEqual([]);
expect(fixture.debugElement.nativeElement).toHaveText('reuse {A}');
expect(cmpInstanceCount).toBe(1);
})
.then((_) => rtr.navigateByUrl('/on-reuse/2/b'))
.then((_) => {
fixture.detectChanges();
expect(log).toEqual(['reuse: /on-reuse/1 -> /on-reuse/2']);
expect(fixture.debugElement.nativeElement).toHaveText('reuse {B}');
expect(cmpInstanceCount).toBe(1);
async.done();
});
}));
it('should not reuse a component when the routerCanReuse hook returns false',
inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((rtc) => {fixture = rtc})
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => rtr.navigateByUrl('/never-reuse/1/a'))
.then((_) => {
fixture.detectChanges();
expect(log).toEqual([]);
expect(fixture.debugElement.nativeElement).toHaveText('reuse {A}');
expect(cmpInstanceCount).toBe(1);
})
.then((_) => rtr.navigateByUrl('/never-reuse/2/b'))
.then((_) => {
fixture.detectChanges();
expect(log).toEqual([]);
expect(fixture.debugElement.nativeElement).toHaveText('reuse {B}');
expect(cmpInstanceCount).toBe(2);
async.done();
});
}));
it('should navigate when routerCanActivate returns true',
inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((rtc) => {fixture = rtc})
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => {
ObservableWrapper.subscribe<string>(eventBus, (ev) => {
if (ev.startsWith('routerCanActivate')) {
completer.resolve(true);
}
});
rtr.navigateByUrl('/can-activate/a')
.then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('routerCanActivate {A}');
expect(log).toEqual(['routerCanActivate: null -> /can-activate']);
async.done();
});
});
}));
it('should not navigate when routerCanActivate returns false',
inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((rtc) => {fixture = rtc})
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => {
ObservableWrapper.subscribe<string>(eventBus, (ev) => {
if (ev.startsWith('routerCanActivate')) {
completer.resolve(false);
}
});
rtr.navigateByUrl('/can-activate/a')
.then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('');
expect(log).toEqual(['routerCanActivate: null -> /can-activate']);
async.done();
});
});
}));
it('should navigate away when routerCanDeactivate returns true',
inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((rtc) => {fixture = rtc})
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => rtr.navigateByUrl('/can-deactivate/a'))
.then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('routerCanDeactivate {A}');
expect(log).toEqual([]);
ObservableWrapper.subscribe<string>(eventBus, (ev) => {
if (ev.startsWith('routerCanDeactivate')) {
completer.resolve(true);
}
});
rtr.navigateByUrl('/a').then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('A');
expect(log).toEqual(['routerCanDeactivate: /can-deactivate -> /a']);
async.done();
});
});
}));
it('should not navigate away when routerCanDeactivate returns false',
inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((rtc) => {fixture = rtc})
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => rtr.navigateByUrl('/can-deactivate/a'))
.then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('routerCanDeactivate {A}');
expect(log).toEqual([]);
ObservableWrapper.subscribe<string>(eventBus, (ev) => {
if (ev.startsWith('routerCanDeactivate')) {
completer.resolve(false);
}
});
rtr.navigateByUrl('/a').then((_) => {
fixture.detectChanges();
expect(fixture.debugElement.nativeElement).toHaveText('routerCanDeactivate {A}');
expect(log).toEqual(['routerCanDeactivate: /can-deactivate -> /a']);
async.done();
});
});
}));
it('should run activation and deactivation hooks in the correct order',
inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((rtc) => {fixture = rtc})
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => rtr.navigateByUrl('/activation-hooks/child'))
.then((_) => {
expect(log).toEqual([
'routerCanActivate child: null -> /child',
'routerCanActivate parent: null -> /activation-hooks',
'routerOnActivate parent: null -> /activation-hooks',
'routerOnActivate child: null -> /child'
]);
log = [];
return rtr.navigateByUrl('/a');
})
.then((_) => {
expect(log).toEqual([
'routerCanDeactivate parent: /activation-hooks -> /a',
'routerCanDeactivate child: /child -> null',
'routerOnDeactivate child: /child -> null',
'routerOnDeactivate parent: /activation-hooks -> /a'
]);
async.done();
});
}));
it('should only run reuse hooks when reusing', inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((rtc) => {fixture = rtc})
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => rtr.navigateByUrl('/reuse-hooks/1'))
.then((_) => {
expect(log).toEqual([
'routerCanActivate: null -> /reuse-hooks/1',
'routerOnActivate: null -> /reuse-hooks/1'
]);
ObservableWrapper.subscribe<string>(eventBus, (ev) => {
if (ev.startsWith('routerCanReuse')) {
completer.resolve(true);
}
});
log = [];
return rtr.navigateByUrl('/reuse-hooks/2');
})
.then((_) => {
expect(log).toEqual([
'routerCanReuse: /reuse-hooks/1 -> /reuse-hooks/2',
'routerOnReuse: /reuse-hooks/1 -> /reuse-hooks/2'
]);
async.done();
});
}));
it('should not run reuse hooks when not reusing', inject([AsyncTestCompleter], (async) => {
compile(tcb)
.then((_) => rtr.config([new Route({path: '/...', component: LifecycleCmp})]))
.then((_) => rtr.navigateByUrl('/reuse-hooks/1'))
.then((_) => {
expect(log).toEqual([
'routerCanActivate: null -> /reuse-hooks/1',
'routerOnActivate: null -> /reuse-hooks/1'
]);
ObservableWrapper.subscribe<string>(eventBus, (ev) => {
if (ev.startsWith('routerCanReuse')) {
completer.resolve(false);
}
});
log = [];
return rtr.navigateByUrl('/reuse-hooks/2');
})
.then((_) => {
expect(log).toEqual([
'routerCanReuse: /reuse-hooks/1 -> /reuse-hooks/2',
'routerCanActivate: /reuse-hooks/1 -> /reuse-hooks/2',
'routerCanDeactivate: /reuse-hooks/1 -> /reuse-hooks/2',
'routerOnDeactivate: /reuse-hooks/1 -> /reuse-hooks/2',
'routerOnActivate: /reuse-hooks/1 -> /reuse-hooks/2'
]);
async.done();
});
}));
});
}
@Component({selector: 'a-cmp', template: "A"})
class A {
}
@Component({selector: 'b-cmp', template: "B"})
class B {
}
function logHook(name: string, next: ComponentInstruction, prev: ComponentInstruction) {
var message = name + ': ' + (isPresent(prev) ? ('/' + prev.urlPath) : 'null') + ' -> ' +
(isPresent(next) ? ('/' + next.urlPath) : 'null');
log.push(message);
ObservableWrapper.callEmit(eventBus, message);
}
@Component({selector: 'activate-cmp', template: 'activate cmp'})
class ActivateCmp implements OnActivate {
routerOnActivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('activate', next, prev);
}
}
@Component({
selector: 'parent-activate-cmp',
template: `parent {<router-outlet></router-outlet>}`,
directives: [RouterOutlet]
})
@RouteConfig([new Route({path: '/child-activate', component: ActivateCmp})])
class ParentActivateCmp implements OnActivate {
routerOnActivate(next: ComponentInstruction, prev: ComponentInstruction): Promise<any> {
completer = PromiseWrapper.completer();
logHook('parent activate', next, prev);
return completer.promise;
}
}
@Component({selector: 'deactivate-cmp', template: 'deactivate cmp'})
class DeactivateCmp implements OnDeactivate {
routerOnDeactivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('deactivate', next, prev);
}
}
@Component({selector: 'deactivate-cmp', template: 'deactivate cmp'})
class WaitDeactivateCmp implements OnDeactivate {
routerOnDeactivate(next: ComponentInstruction, prev: ComponentInstruction): Promise<any> {
completer = PromiseWrapper.completer();
logHook('deactivate', next, prev);
return completer.promise;
}
}
@Component({
selector: 'parent-deactivate-cmp',
template: `parent {<router-outlet></router-outlet>}`,
directives: [RouterOutlet]
})
@RouteConfig([new Route({path: '/child-deactivate', component: WaitDeactivateCmp})])
class ParentDeactivateCmp implements OnDeactivate {
routerOnDeactivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('parent deactivate', next, prev);
}
}
@Component({
selector: 'reuse-cmp',
template: `reuse {<router-outlet></router-outlet>}`,
directives: [RouterOutlet]
})
@RouteConfig([new Route({path: '/a', component: A}), new Route({path: '/b', component: B})])
class ReuseCmp implements OnReuse,
CanReuse {
constructor() { cmpInstanceCount += 1; }
routerCanReuse(next: ComponentInstruction, prev: ComponentInstruction) { return true; }
routerOnReuse(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('reuse', next, prev);
}
}
@Component({
selector: 'never-reuse-cmp',
template: `reuse {<router-outlet></router-outlet>}`,
directives: [RouterOutlet]
})
@RouteConfig([new Route({path: '/a', component: A}), new Route({path: '/b', component: B})])
class NeverReuseCmp implements OnReuse,
CanReuse {
constructor() { cmpInstanceCount += 1; }
routerCanReuse(next: ComponentInstruction, prev: ComponentInstruction) { return false; }
routerOnReuse(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('reuse', next, prev);
}
}
@Component({
selector: 'can-activate-cmp',
template: `routerCanActivate {<router-outlet></router-outlet>}`,
directives: [RouterOutlet]
})
@RouteConfig([new Route({path: '/a', component: A}), new Route({path: '/b', component: B})])
@CanActivate(CanActivateCmp.routerCanActivate)
class CanActivateCmp {
static routerCanActivate(next: ComponentInstruction,
prev: ComponentInstruction): Promise<boolean> {
completer = PromiseWrapper.completer();
logHook('routerCanActivate', next, prev);
return completer.promise;
}
}
@Component({
selector: 'can-deactivate-cmp',
template: `routerCanDeactivate {<router-outlet></router-outlet>}`,
directives: [RouterOutlet]
})
@RouteConfig([new Route({path: '/a', component: A}), new Route({path: '/b', component: B})])
class CanDeactivateCmp implements CanDeactivate {
routerCanDeactivate(next: ComponentInstruction, prev: ComponentInstruction): Promise<boolean> {
completer = PromiseWrapper.completer();
logHook('routerCanDeactivate', next, prev);
return completer.promise;
}
}
@Component({selector: 'all-hooks-child-cmp', template: `child`})
@CanActivate(AllHooksChildCmp.routerCanActivate)
class AllHooksChildCmp implements CanDeactivate, OnDeactivate, OnActivate {
routerCanDeactivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerCanDeactivate child', next, prev);
return true;
}
routerOnDeactivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerOnDeactivate child', next, prev);
}
static routerCanActivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerCanActivate child', next, prev);
return true;
}
routerOnActivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerOnActivate child', next, prev);
}
}
@Component({
selector: 'all-hooks-parent-cmp',
template: `<router-outlet></router-outlet>`,
directives: [RouterOutlet]
})
@RouteConfig([new Route({path: '/child', component: AllHooksChildCmp})])
@CanActivate(AllHooksParentCmp.routerCanActivate)
class AllHooksParentCmp implements CanDeactivate,
OnDeactivate, OnActivate {
routerCanDeactivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerCanDeactivate parent', next, prev);
return true;
}
routerOnDeactivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerOnDeactivate parent', next, prev);
}
static routerCanActivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerCanActivate parent', next, prev);
return true;
}
routerOnActivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerOnActivate parent', next, prev);
}
}
@Component({selector: 'reuse-hooks-cmp', template: 'reuse hooks cmp'})
@CanActivate(ReuseHooksCmp.routerCanActivate)
class ReuseHooksCmp implements OnActivate, OnReuse, OnDeactivate, CanReuse, CanDeactivate {
routerCanReuse(next: ComponentInstruction, prev: ComponentInstruction): Promise<any> {
completer = PromiseWrapper.completer();
logHook('routerCanReuse', next, prev);
return completer.promise;
}
routerOnReuse(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerOnReuse', next, prev);
}
routerCanDeactivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerCanDeactivate', next, prev);
return true;
}
routerOnDeactivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerOnDeactivate', next, prev);
}
static routerCanActivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerCanActivate', next, prev);
return true;
}
routerOnActivate(next: ComponentInstruction, prev: ComponentInstruction) {
logHook('routerOnActivate', next, prev);
}
}
@Component({
selector: 'lifecycle-cmp',
template: `<router-outlet></router-outlet>`,
directives: [RouterOutlet]
})
@RouteConfig([
new Route({path: '/a', component: A}),
new Route({path: '/on-activate', component: ActivateCmp}),
new Route({path: '/parent-activate/...', component: ParentActivateCmp}),
new Route({path: '/on-deactivate', component: DeactivateCmp}),
new Route({path: '/parent-deactivate/...', component: ParentDeactivateCmp}),
new Route({path: '/on-reuse/:number/...', component: ReuseCmp}),
new Route({path: '/never-reuse/:number/...', component: NeverReuseCmp}),
new Route({path: '/can-activate/...', component: CanActivateCmp}),
new Route({path: '/can-deactivate/...', component: CanDeactivateCmp}),
new Route({path: '/activation-hooks/...', component: AllHooksParentCmp}),
new Route({path: '/reuse-hooks/:number', component: ReuseHooksCmp})
])
class LifecycleCmp {
}