angular-docs-cn/modules/angular1_router/test/integration/lifecycle_hook_spec.js

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'use strict';
describe('Navigation lifecycle', function () {
var elt,
$compile,
$q,
$rootScope,
$rootRouter,
$compileProvider;
beforeEach(function () {
module('ng');
module('ngComponentRouter');
module(function (_$compileProvider_) {
$compileProvider = _$compileProvider_;
});
inject(function (_$compile_, _$q_, _$rootScope_, _$rootRouter_) {
$compile = _$compile_;
$q = _$q_;
$rootScope = _$rootScope_;
$rootRouter = _$rootRouter_;
});
registerComponent('oneCmp', {
template: '<div>{{oneCmp.number}}</div>',
controller: function () {this.number = 'one'}
});
registerComponent('twoCmp', {
template: '<div><a ng-link="[\'/Two\']">{{twoCmp.number}}</a></div>',
controller: function () {this.number = 'two'}
});
});
it('should run the activate hook of controllers', function () {
var spy = jasmine.createSpy('activate');
registerComponent('activateCmp', {
template: '<p>hello</p>',
$routerOnActivate: spy
});
$rootRouter.config([
{ path: '/a', component: 'activateCmp' }
]);
compile('<div>outer { <div ng-outlet></div> }</div>');
$rootRouter.navigateByUrl('/a');
$rootScope.$digest();
expect(spy).toHaveBeenCalled();
});
it('should pass instruction into the activate hook of a controller', function () {
var spy = jasmine.createSpy('activate');
registerComponent('userCmp', {
$routerOnActivate: spy
});
$rootRouter.config([
{ path: '/user/:name', component: 'userCmp' }
]);
compile('<div ng-outlet></div>');
$rootRouter.navigateByUrl('/user/brian');
$rootScope.$digest();
expect(spy).toHaveBeenCalledWith(instructionFor('userCmp'), undefined);
});
it('should pass previous instruction into the activate hook of a controller', function () {
var spy = jasmine.createSpy('activate');
var activate = registerComponent('activateCmp', {
template: 'hi',
$routerOnActivate: spy
});
$rootRouter.config([
{ path: '/user/:name', component: 'oneCmp' },
{ path: '/post/:id', component: 'activateCmp' }
]);
compile('<div ng-outlet></div>');
$rootRouter.navigateByUrl('/user/brian');
$rootScope.$digest();
$rootRouter.navigateByUrl('/post/123');
$rootScope.$digest();
expect(spy).toHaveBeenCalledWith(instructionFor('activateCmp'),
instructionFor('oneCmp'));
});
describe('activate hook with promise', () => {
var activateDeferred;
beforeEach(() => {
activateDeferred = $q.defer();
var activate = registerComponent('activateCmp', {
template: 'hi',
$routerOnActivate: function() {
return activateDeferred.promise;
}
});
$rootRouter.config([
{ path: '/user/:name', component: 'oneCmp' },
{ path: '/post', component: 'activateCmp' },
]);
compile('<div ng-outlet></div>');
$rootRouter.navigateByUrl('/user/fabian');
$rootScope.$digest();
$rootRouter.navigateByUrl('/post');
$rootScope.$digest();
});
it('should update the view once the promise gets resolved', () => {
expect(elt.text()).toBe('one');
activateDeferred.resolve();
$rootScope.$digest();
expect(elt.text()).toBe('hi');
});
it('should update the view once the promise gets rejected', () => {
expect(elt.text()).toBe('one');
activateDeferred.reject();
$rootScope.$digest();
expect(elt.text()).toBe('hi');
});
});
it('should inject $scope into the controller constructor', function () {
var injectedScope;
registerComponent('userCmp', {
template: '',
controller: function ($scope) {
injectedScope = $scope;
}
});
$rootRouter.config([
{ path: '/user', component: 'userCmp' }
]);
compile('<div ng-outlet></div>');
$rootRouter.navigateByUrl('/user');
$rootScope.$digest();
expect(injectedScope).toBeDefined();
});
it('should run the deactivate hook of controllers', function () {
var spy = jasmine.createSpy('deactivate');
registerComponent('deactivateCmp', {
$routerOnDeactivate: spy
});
$rootRouter.config([
{ path: '/a', component: 'deactivateCmp' },
{ path: '/b', component: 'oneCmp' }
]);
compile('<div ng-outlet></div>');
$rootRouter.navigateByUrl('/a');
$rootScope.$digest();
$rootRouter.navigateByUrl('/b');
$rootScope.$digest();
expect(spy).toHaveBeenCalled();
});
it('should pass instructions into the deactivate hook of controllers', function () {
var spy = jasmine.createSpy('deactivate');
registerComponent('deactivateCmp', {
$routerOnDeactivate: spy
});
$rootRouter.config([
{ path: '/user/:name', component: 'deactivateCmp' },
{ path: '/post/:id', component: 'oneCmp' }
]);
compile('<div ng-outlet></div>');
$rootRouter.navigateByUrl('/user/brian');
$rootScope.$digest();
$rootRouter.navigateByUrl('/post/123');
$rootScope.$digest();
expect(spy).toHaveBeenCalledWith(instructionFor('oneCmp'),
instructionFor('deactivateCmp'));
});
it('should run the deactivate hook before the activate hook', function () {
var log = [];
registerComponent('activateCmp', {
$routerOnActivate: function () {
log.push('activate');
}
});
registerComponent('deactivateCmp', {
$routerOnDeactivate: function () {
log.push('deactivate');
}
});
$rootRouter.config([
{ path: '/a', component: 'deactivateCmp' },
{ path: '/b', component: 'activateCmp' }
]);
compile('outer { <div ng-outlet></div> }');
$rootRouter.navigateByUrl('/a');
$rootScope.$digest();
$rootRouter.navigateByUrl('/b');
$rootScope.$digest();
expect(log).toEqual(['deactivate', 'activate']);
});
it('should reuse a component when the routerCanReuse hook returns true', function () {
var log = [];
var cmpInstanceCount = 0;
function ReuseCmp() {
cmpInstanceCount++;
}
registerComponent('reuseCmp', {
template: 'reuse {<ng-outlet></ng-outlet>}',
$routeConfig: [
{path: '/a', component: 'oneCmp'},
{path: '/b', component: 'twoCmp'}
],
controller: ReuseCmp,
$routerCanReuse: function () {
return true;
},
$routerOnReuse: function (next, prev) {
log.push('reuse: ' + prev.urlPath + ' -> ' + next.urlPath);
}
});
$rootRouter.config([
{ path: '/on-reuse/:number/...', component: 'reuseCmp' },
{ path: '/two', component: 'twoCmp', name: 'Two'}
]);
compile('outer { <div ng-outlet></div> }');
$rootRouter.navigateByUrl('/on-reuse/1/a');
$rootScope.$digest();
expect(log).toEqual([]);
expect(cmpInstanceCount).toBe(1);
expect(elt.text()).toBe('outer { reuse {one} }');
$rootRouter.navigateByUrl('/on-reuse/2/b');
$rootScope.$digest();
expect(log).toEqual(['reuse: on-reuse/1 -> on-reuse/2']);
expect(cmpInstanceCount).toBe(1);
expect(elt.text()).toBe('outer { reuse {two} }');
});
it('should not reuse a component when the routerCanReuse hook returns false', function () {
var log = [];
var cmpInstanceCount = 0;
function NeverReuseCmp() {
cmpInstanceCount++;
}
registerComponent('reuseCmp', {
template: 'reuse {<ng-outlet></ng-outlet>}',
$routeConfig: [
{path: '/a', component: 'oneCmp'},
{path: '/b', component: 'twoCmp'}
],
controller: NeverReuseCmp,
$routerCanReuse: function () {
return false;
},
$routerOnReuse: function (next, prev) {
log.push('reuse: ' + prev.urlPath + ' -> ' + next.urlPath);
}
});
$rootRouter.config([
{ path: '/never-reuse/:number/...', component: 'reuseCmp' },
{ path: '/two', component: 'twoCmp', name: 'Two'}
]);
compile('outer { <div ng-outlet></div> }');
$rootRouter.navigateByUrl('/never-reuse/1/a');
$rootScope.$digest();
expect(log).toEqual([]);
expect(cmpInstanceCount).toBe(1);
expect(elt.text()).toBe('outer { reuse {one} }');
$rootRouter.navigateByUrl('/never-reuse/2/b');
$rootScope.$digest();
expect(log).toEqual([]);
expect(cmpInstanceCount).toBe(2);
expect(elt.text()).toBe('outer { reuse {two} }');
});
// TODO: need to solve getting ahold of canActivate hook
it('should not activate a component when canActivate returns false', function () {
var canActivateSpy = jasmine.createSpy('canActivate').and.returnValue(false);
var spy = jasmine.createSpy('activate');
registerComponent('activateCmp', {
$canActivate: canActivateSpy,
$routerOnActivate: spy
});
$rootRouter.config([
{ path: '/a', component: 'activateCmp' }
]);
compile('outer { <div ng-outlet></div> }');
$rootRouter.navigateByUrl('/a');
$rootScope.$digest();
expect(spy).not.toHaveBeenCalled();
expect(elt.text()).toBe('outer { }');
});
it('should activate a component when canActivate returns true', function () {
var activateSpy = jasmine.createSpy('activate');
var canActivateSpy = jasmine.createSpy('canActivate').and.returnValue(true);
registerComponent('activateCmp', {
template: 'hi',
$canActivate: canActivateSpy,
$routerOnActivate: activateSpy
});
$rootRouter.config([
{ path: '/a', component: 'activateCmp' }
]);
compile('<div ng-outlet></div>');
$rootRouter.navigateByUrl('/a');
$rootScope.$digest();
expect(canActivateSpy).toHaveBeenCalled();
expect(activateSpy).toHaveBeenCalled();
expect(elt.text()).toBe('hi');
});
it('should activate a component when canActivate returns a resolved promise', inject(function ($q) {
var spy = jasmine.createSpy('activate');
registerComponent('activateCmp', {
template: 'hi',
$canActivate: function () {
return $q.when(true);
},
$routerOnActivate: spy
});
$rootRouter.config([
{ path: '/a', component: 'activateCmp' }
]);
compile('<div ng-outlet></div>');
$rootRouter.navigateByUrl('/a');
$rootScope.$digest();
expect(spy).toHaveBeenCalled();
expect(elt.text()).toBe('hi');
}));
it('should inject into the canActivate hook of controllers', inject(function ($http) {
var spy = jasmine.createSpy('canActivate').and.returnValue(true);
registerComponent('activateCmp', {
$canActivate: spy
});
spy.$inject = ['$nextInstruction', '$http'];
$rootRouter.config([
{ path: '/user/:name', component: 'activateCmp' }
]);
compile('<div ng-outlet></div>');
$rootRouter.navigateByUrl('/user/brian');
$rootScope.$digest();
expect(spy).toHaveBeenCalled();
var args = spy.calls.mostRecent().args;
expect(args[0].params).toEqual(jasmine.objectContaining({name: 'brian'}));
expect(args[1]).toBe($http);
}));
it('should not navigate when routerCanDeactivate returns false', function () {
registerComponent('activateCmp', {
template: 'hi',
$routerCanDeactivate: function () {
return false;
}
});
$rootRouter.config([
{ path: '/a', component: 'activateCmp' },
{ path: '/b', component: 'oneCmp' }
]);
compile('outer { <div ng-outlet></div> }');
$rootRouter.navigateByUrl('/a');
$rootScope.$digest();
expect(elt.text()).toBe('outer { hi }');
$rootRouter.navigateByUrl('/b');
$rootScope.$digest();
expect(elt.text()).toBe('outer { hi }');
});
it('should navigate when routerCanDeactivate returns true', function () {
registerComponent('activateCmp', {
template: 'hi',
$routerCanDeactivate: function () {
return true;
}
});
$rootRouter.config([
{ path: '/a', component: 'activateCmp' },
{ path: '/b', component: 'oneCmp' }
]);
compile('outer { <div ng-outlet></div> }');
$rootRouter.navigateByUrl('/a');
$rootScope.$digest();
expect(elt.text()).toBe('outer { hi }');
$rootRouter.navigateByUrl('/b');
$rootScope.$digest();
expect(elt.text()).toBe('outer { one }');
});
it('should activate a component when canActivate returns true', function () {
var spy = jasmine.createSpy('activate');
registerComponent('activateCmp', {
template: 'hi',
$canActivate: function () {
return true;
},
$routerOnActivate: spy
});
$rootRouter.config([
{ path: '/a', component: 'activateCmp' }
]);
compile('<div ng-outlet></div>');
$rootRouter.navigateByUrl('/a');
$rootScope.$digest();
expect(spy).toHaveBeenCalled();
expect(elt.text()).toBe('hi');
});
it('should pass instructions into the routerCanDeactivate hook of controllers', function () {
var spy = jasmine.createSpy('routerCanDeactivate').and.returnValue(true);
registerComponent('deactivateCmp', {
$routerCanDeactivate: spy
});
$rootRouter.config([
{ path: '/user/:name', component: 'deactivateCmp' },
{ path: '/post/:id', component: 'oneCmp' }
]);
compile('<div ng-outlet></div>');
$rootRouter.navigateByUrl('/user/brian');
$rootScope.$digest();
$rootRouter.navigateByUrl('/post/123');
$rootScope.$digest();
expect(spy).toHaveBeenCalledWith(instructionFor('oneCmp'),
instructionFor('deactivateCmp'));
});
function registerComponent(name, options) {
var controller = options.controller || function () {};
['$routerOnActivate', '$routerOnDeactivate', '$routerOnReuse', '$routerCanReuse', '$routerCanDeactivate'].forEach(function (hookName) {
if (options[hookName]) {
controller.prototype[hookName] = options[hookName];
}
});
function factory() {
return {
template: options.template || '',
controllerAs: name,
controller: controller
};
}
if (options.$canActivate) {
controller.$canActivate = options.$canActivate;
}
if (options.$routeConfig) {
controller.$routeConfig = options.$routeConfig;
}
$compileProvider.directive(name, factory);
}
function compile(template) {
elt = $compile('<div>' + template + '</div>')($rootScope);
$rootScope.$digest();
return elt;
}
function instructionFor(componentType) {
return jasmine.objectContaining({componentType: componentType});
}
});