mirror of
https://github.com/zhigang1992/angular.js.git
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e80053d91f
Use the new private function `stringify` to convert scope values to strings, since this can cope with cyclic references and other oddities. Closes #10085
2034 lines
64 KiB
JavaScript
2034 lines
64 KiB
JavaScript
'use strict';
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describe('Scope', function() {
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beforeEach(module(provideLog));
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describe('$root', function() {
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it('should point to itself', inject(function($rootScope) {
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expect($rootScope.$root).toEqual($rootScope);
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expect($rootScope.hasOwnProperty('$root')).toBeTruthy();
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}));
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it('should expose the constructor', inject(function($rootScope) {
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/* jshint -W103 */
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if (msie) return;
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expect($rootScope.__proto__).toBe($rootScope.constructor.prototype);
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}));
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it('should not have $root on children, but should inherit', inject(function($rootScope) {
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var child = $rootScope.$new();
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expect(child.$root).toEqual($rootScope);
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expect(child.hasOwnProperty('$root')).toBeFalsy();
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}));
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});
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describe('$parent', function() {
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it('should point to itself in root', inject(function($rootScope) {
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expect($rootScope.$root).toEqual($rootScope);
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}));
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it('should point to parent', inject(function($rootScope) {
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var child = $rootScope.$new();
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expect($rootScope.$parent).toEqual(null);
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expect(child.$parent).toEqual($rootScope);
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expect(child.$new().$parent).toEqual(child);
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}));
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});
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describe('$id', function() {
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it('should have a unique id', inject(function($rootScope) {
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expect($rootScope.$id < $rootScope.$new().$id).toBeTruthy();
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}));
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});
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describe('this', function() {
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it('should evaluate \'this\' to be the scope', inject(function($rootScope) {
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var child = $rootScope.$new();
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expect($rootScope.$eval('this')).toEqual($rootScope);
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expect(child.$eval('this')).toEqual(child);
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}));
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it('\'this\' should not be recursive', inject(function($rootScope) {
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expect($rootScope.$eval('this.this')).toBeUndefined();
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expect($rootScope.$eval('$parent.this')).toBeUndefined();
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}));
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it('should not be able to overwrite the \'this\' keyword', inject(function($rootScope) {
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$rootScope['this'] = 123;
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expect($rootScope.$eval('this')).toEqual($rootScope);
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}));
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it('should be able to access a variable named \'this\'', inject(function($rootScope) {
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$rootScope['this'] = 42;
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expect($rootScope.$eval('this[\'this\']')).toBe(42);
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}));
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});
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describe('$new()', function() {
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it('should create a child scope', inject(function($rootScope) {
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var child = $rootScope.$new();
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$rootScope.a = 123;
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expect(child.a).toEqual(123);
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}));
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it('should create a non prototypically inherited child scope', inject(function($rootScope) {
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var child = $rootScope.$new(true);
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$rootScope.a = 123;
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expect(child.a).toBeUndefined();
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expect(child.$parent).toEqual($rootScope);
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expect(child.$new).toBe($rootScope.$new);
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expect(child.$root).toBe($rootScope);
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}));
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it("should attach the child scope to a specified parent", inject(function($rootScope) {
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var isolated = $rootScope.$new(true);
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var trans = $rootScope.$new(false, isolated);
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$rootScope.a = 123;
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expect(isolated.a).toBeUndefined();
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expect(trans.a).toEqual(123);
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expect(trans.$parent).toBe(isolated);
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}));
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});
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describe('$watch/$digest', function() {
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it('should watch and fire on simple property change', inject(function($rootScope) {
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var spy = jasmine.createSpy();
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$rootScope.$watch('name', spy);
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$rootScope.$digest();
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spy.reset();
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expect(spy).not.wasCalled();
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$rootScope.$digest();
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expect(spy).not.wasCalled();
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$rootScope.name = 'misko';
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$rootScope.$digest();
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expect(spy).wasCalledWith('misko', undefined, $rootScope);
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}));
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it('should watch and fire on expression change', inject(function($rootScope) {
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var spy = jasmine.createSpy();
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$rootScope.$watch('name.first', spy);
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$rootScope.$digest();
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spy.reset();
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$rootScope.name = {};
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expect(spy).not.wasCalled();
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$rootScope.$digest();
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expect(spy).not.wasCalled();
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$rootScope.name.first = 'misko';
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$rootScope.$digest();
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expect(spy).wasCalled();
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}));
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it('should not keep constant expressions on watch queue', inject(function($rootScope) {
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$rootScope.$watch('1 + 1', function() {});
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expect($rootScope.$$watchers.length).toEqual(1);
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$rootScope.$digest();
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expect($rootScope.$$watchers.length).toEqual(0);
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}));
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it('should not keep constant literals on the watch queue', inject(function($rootScope) {
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$rootScope.$watch('[]', function() {});
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$rootScope.$watch('{}', function() {});
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expect($rootScope.$$watchers.length).toEqual(2);
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$rootScope.$digest();
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expect($rootScope.$$watchers.length).toEqual(0);
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}));
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it('should clean up stable watches on the watch queue', inject(function($rootScope) {
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$rootScope.$watch('::foo', function() {});
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expect($rootScope.$$watchers.length).toEqual(1);
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$rootScope.$digest();
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expect($rootScope.$$watchers.length).toEqual(1);
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$rootScope.foo = 'foo';
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$rootScope.$digest();
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expect($rootScope.$$watchers.length).toEqual(0);
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}));
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it('should clean up stable watches from $watchCollection', inject(function($rootScope) {
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$rootScope.$watchCollection('::foo', function() {});
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expect($rootScope.$$watchers.length).toEqual(1);
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$rootScope.$digest();
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expect($rootScope.$$watchers.length).toEqual(1);
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$rootScope.foo = [];
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$rootScope.$digest();
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expect($rootScope.$$watchers.length).toEqual(0);
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}));
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it('should clean up stable watches from $watchGroup', inject(function($rootScope) {
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$rootScope.$watchGroup(['::foo', '::bar'], function() {});
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expect($rootScope.$$watchers.length).toEqual(2);
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$rootScope.$digest();
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expect($rootScope.$$watchers.length).toEqual(2);
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$rootScope.foo = 'foo';
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$rootScope.$digest();
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expect($rootScope.$$watchers.length).toEqual(1);
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$rootScope.bar = 'bar';
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$rootScope.$digest();
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expect($rootScope.$$watchers.length).toEqual(0);
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}));
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it('should delegate exceptions', function() {
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module(function($exceptionHandlerProvider) {
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$exceptionHandlerProvider.mode('log');
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});
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inject(function($rootScope, $exceptionHandler, $log) {
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$rootScope.$watch('a', function() {throw new Error('abc');});
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$rootScope.a = 1;
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$rootScope.$digest();
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expect($exceptionHandler.errors[0].message).toEqual('abc');
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$log.assertEmpty();
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});
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});
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it('should fire watches in order of addition', inject(function($rootScope) {
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// this is not an external guarantee, just our own sanity
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var log = '';
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$rootScope.$watch('a', function() { log += 'a'; });
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$rootScope.$watch('b', function() { log += 'b'; });
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// constant expressions have slightly different handling,
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// let's ensure they are kept in the same list as others
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$rootScope.$watch('1', function() { log += '1'; });
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$rootScope.$watch('c', function() { log += 'c'; });
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$rootScope.$watch('2', function() { log += '2'; });
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$rootScope.a = $rootScope.b = $rootScope.c = 1;
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$rootScope.$digest();
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expect(log).toEqual('ab1c2');
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}));
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it('should call child $watchers in addition order', inject(function($rootScope) {
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// this is not an external guarantee, just our own sanity
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var log = '';
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var childA = $rootScope.$new();
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var childB = $rootScope.$new();
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var childC = $rootScope.$new();
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childA.$watch('a', function() { log += 'a'; });
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childB.$watch('b', function() { log += 'b'; });
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childC.$watch('c', function() { log += 'c'; });
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childA.a = childB.b = childC.c = 1;
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$rootScope.$digest();
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expect(log).toEqual('abc');
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}));
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it('should allow $digest on a child scope with and without a right sibling', inject(
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function($rootScope) {
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// tests a traversal edge case which we originally missed
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var log = '',
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childA = $rootScope.$new(),
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childB = $rootScope.$new();
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$rootScope.$watch(function() { log += 'r'; });
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childA.$watch(function() { log += 'a'; });
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childB.$watch(function() { log += 'b'; });
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// init
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$rootScope.$digest();
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expect(log).toBe('rabrab');
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log = '';
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childA.$digest();
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expect(log).toBe('a');
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log = '';
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childB.$digest();
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expect(log).toBe('b');
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}));
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it('should repeat watch cycle while model changes are identified', inject(function($rootScope) {
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var log = '';
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$rootScope.$watch('c', function(v) {$rootScope.d = v; log+='c'; });
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$rootScope.$watch('b', function(v) {$rootScope.c = v; log+='b'; });
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$rootScope.$watch('a', function(v) {$rootScope.b = v; log+='a'; });
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$rootScope.$digest();
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log = '';
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$rootScope.a = 1;
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$rootScope.$digest();
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expect($rootScope.b).toEqual(1);
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expect($rootScope.c).toEqual(1);
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expect($rootScope.d).toEqual(1);
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expect(log).toEqual('abc');
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}));
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it('should repeat watch cycle from the root element', inject(function($rootScope) {
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var log = '';
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var child = $rootScope.$new();
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$rootScope.$watch(function() { log += 'a'; });
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child.$watch(function() { log += 'b'; });
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$rootScope.$digest();
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expect(log).toEqual('abab');
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}));
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it('should prevent infinite recursion and print watcher expression',function() {
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module(function($rootScopeProvider) {
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$rootScopeProvider.digestTtl(100);
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});
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inject(function($rootScope) {
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$rootScope.$watch('a', function() {$rootScope.b++;});
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$rootScope.$watch('b', function() {$rootScope.a++;});
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$rootScope.a = $rootScope.b = 0;
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expect(function() {
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$rootScope.$digest();
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}).toThrowMinErr('$rootScope', 'infdig', '100 $digest() iterations reached. Aborting!\n' +
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'Watchers fired in the last 5 iterations: ' +
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'[[{"msg":"a","newVal":96,"oldVal":95},{"msg":"b","newVal":97,"oldVal":96}],' +
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'[{"msg":"a","newVal":97,"oldVal":96},{"msg":"b","newVal":98,"oldVal":97}],' +
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'[{"msg":"a","newVal":98,"oldVal":97},{"msg":"b","newVal":99,"oldVal":98}],' +
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'[{"msg":"a","newVal":99,"oldVal":98},{"msg":"b","newVal":100,"oldVal":99}],' +
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'[{"msg":"a","newVal":100,"oldVal":99},{"msg":"b","newVal":101,"oldVal":100}]]');
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expect($rootScope.$$phase).toBeNull();
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});
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});
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it('should prevent infinite recursion and print watcher function name or body',
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inject(function($rootScope) {
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$rootScope.$watch(function watcherA() {return $rootScope.a;}, function() {$rootScope.b++;});
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$rootScope.$watch(function() {return $rootScope.b;}, function() {$rootScope.a++;});
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$rootScope.a = $rootScope.b = 0;
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try {
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$rootScope.$digest();
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throw new Error('Should have thrown exception');
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} catch (e) {
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expect(e.message.match(/"fn: (watcherA|function)/g).length).toBe(10);
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}
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}));
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it('should prevent infinite loop when creating and resolving a promise in a watched expression', function() {
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module(function($rootScopeProvider) {
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$rootScopeProvider.digestTtl(10);
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});
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inject(function($rootScope, $q) {
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var d = $q.defer();
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d.resolve('Hello, world.');
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$rootScope.$watch(function() {
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var $d2 = $q.defer();
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$d2.resolve('Goodbye.');
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$d2.promise.then(function() { });
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return d.promise;
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}, function() { return 0; });
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expect(function() {
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$rootScope.$digest();
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}).toThrowMinErr('$rootScope', 'infdig', '10 $digest() iterations reached. Aborting!\n' +
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'Watchers fired in the last 5 iterations: []');
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expect($rootScope.$$phase).toBeNull();
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});
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});
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it('should not fire upon $watch registration on initial $digest', inject(function($rootScope) {
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var log = '';
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$rootScope.a = 1;
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$rootScope.$watch('a', function() { log += 'a'; });
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$rootScope.$watch('b', function() { log += 'b'; });
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$rootScope.$digest();
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log = '';
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$rootScope.$digest();
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expect(log).toEqual('');
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}));
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it('should watch objects', inject(function($rootScope) {
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var log = '';
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$rootScope.a = [];
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$rootScope.b = {};
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$rootScope.$watch('a', function(value) {
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log +='.';
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expect(value).toBe($rootScope.a);
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}, true);
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$rootScope.$watch('b', function(value) {
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log +='!';
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expect(value).toBe($rootScope.b);
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}, true);
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$rootScope.$digest();
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log = '';
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$rootScope.a.push({});
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$rootScope.b.name = '';
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$rootScope.$digest();
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expect(log).toEqual('.!');
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}));
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it('should watch functions', function() {
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module(provideLog);
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inject(function($rootScope, log) {
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$rootScope.fn = function() {return 'a';};
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$rootScope.$watch('fn', function(fn) {
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log(fn());
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});
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$rootScope.$digest();
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expect(log).toEqual('a');
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$rootScope.fn = function() {return 'b';};
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$rootScope.$digest();
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expect(log).toEqual('a; b');
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});
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});
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it('should prevent $digest recursion', inject(function($rootScope) {
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var callCount = 0;
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$rootScope.$watch('name', function() {
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expect(function() {
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$rootScope.$digest();
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}).toThrowMinErr('$rootScope', 'inprog', '$digest already in progress');
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callCount++;
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});
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$rootScope.name = 'a';
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$rootScope.$digest();
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expect(callCount).toEqual(1);
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}));
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it('should allow a watch to be added while in a digest', inject(function($rootScope) {
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var watch1 = jasmine.createSpy('watch1'),
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watch2 = jasmine.createSpy('watch2');
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$rootScope.$watch('foo', function() {
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$rootScope.$watch('foo', watch1);
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$rootScope.$watch('foo', watch2);
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});
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$rootScope.$apply('foo = true');
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expect(watch1).toHaveBeenCalled();
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expect(watch2).toHaveBeenCalled();
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}));
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it('should not infinitely digest when current value is NaN', inject(function($rootScope) {
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$rootScope.$watch(function() { return NaN;});
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expect(function() {
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$rootScope.$digest();
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}).not.toThrow();
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}));
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it('should always call the watcher with newVal and oldVal equal on the first run',
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inject(function($rootScope) {
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var log = [];
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function logger(scope, newVal, oldVal) {
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var val = (newVal === oldVal || (newVal !== oldVal && oldVal !== newVal)) ? newVal : 'xxx';
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log.push(val);
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}
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$rootScope.$watch(function() { return NaN;}, logger);
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$rootScope.$watch(function() { return undefined;}, logger);
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$rootScope.$watch(function() { return '';}, logger);
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$rootScope.$watch(function() { return false;}, logger);
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$rootScope.$watch(function() { return {};}, logger, true);
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$rootScope.$watch(function() { return 23;}, logger);
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$rootScope.$digest();
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expect(isNaN(log.shift())).toBe(true); //jasmine's toBe and toEqual don't work well with NaNs
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expect(log).toEqual([undefined, '', false, {}, 23]);
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log = [];
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$rootScope.$digest();
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expect(log).toEqual([]);
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}));
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describe('$watch deregistration', function() {
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it('should return a function that allows listeners to be deregistered', inject(
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function($rootScope) {
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var listener = jasmine.createSpy('watch listener'),
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listenerRemove;
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listenerRemove = $rootScope.$watch('foo', listener);
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$rootScope.$digest(); //init
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expect(listener).toHaveBeenCalled();
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expect(listenerRemove).toBeDefined();
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listener.reset();
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$rootScope.foo = 'bar';
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$rootScope.$digest(); //triger
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expect(listener).toHaveBeenCalledOnce();
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listener.reset();
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$rootScope.foo = 'baz';
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listenerRemove();
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$rootScope.$digest(); //trigger
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expect(listener).not.toHaveBeenCalled();
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}));
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it('should allow a watch to be deregistered while in a digest', inject(function($rootScope) {
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var remove1, remove2;
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$rootScope.$watch('remove', function() {
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remove1();
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remove2();
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});
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remove1 = $rootScope.$watch('thing', function() {});
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remove2 = $rootScope.$watch('thing', function() {});
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expect(function() {
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$rootScope.$apply('remove = true');
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}).not.toThrow();
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}));
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it('should not mess up the digest loop if deregistration happens during digest', inject(
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function($rootScope, log) {
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// we are testing this due to regression #5525 which is related to how the digest loops lastDirtyWatch
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// short-circuiting optimization works
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// scenario: watch1 deregistering watch1
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var scope = $rootScope.$new();
|
|
var deregWatch1 = scope.$watch(log.fn('watch1'), function() { deregWatch1(); log('watchAction1'); });
|
|
scope.$watch(log.fn('watch2'), log.fn('watchAction2'));
|
|
scope.$watch(log.fn('watch3'), log.fn('watchAction3'));
|
|
|
|
$rootScope.$digest();
|
|
|
|
expect(log).toEqual(['watch1', 'watchAction1', 'watch2', 'watchAction2', 'watch3', 'watchAction3',
|
|
'watch2', 'watch3']);
|
|
scope.$destroy();
|
|
log.reset();
|
|
|
|
|
|
// scenario: watch1 deregistering watch2
|
|
scope = $rootScope.$new();
|
|
scope.$watch(log.fn('watch1'), function() { deregWatch2(); log('watchAction1'); });
|
|
var deregWatch2 = scope.$watch(log.fn('watch2'), log.fn('watchAction2'));
|
|
scope.$watch(log.fn('watch3'), log.fn('watchAction3'));
|
|
|
|
$rootScope.$digest();
|
|
|
|
expect(log).toEqual(['watch1', 'watchAction1', 'watch1', 'watch3', 'watchAction3',
|
|
'watch1', 'watch3']);
|
|
scope.$destroy();
|
|
log.reset();
|
|
|
|
|
|
// scenario: watch2 deregistering watch1
|
|
scope = $rootScope.$new();
|
|
deregWatch1 = scope.$watch(log.fn('watch1'), log.fn('watchAction1'));
|
|
scope.$watch(log.fn('watch2'), function() { deregWatch1(); log('watchAction2'); });
|
|
scope.$watch(log.fn('watch3'), log.fn('watchAction3'));
|
|
|
|
$rootScope.$digest();
|
|
|
|
expect(log).toEqual(['watch1', 'watchAction1', 'watch2', 'watchAction2', 'watch3', 'watchAction3',
|
|
'watch2', 'watch3']);
|
|
}));
|
|
});
|
|
|
|
|
|
describe('$watchCollection', function() {
|
|
var log, $rootScope, deregister;
|
|
|
|
beforeEach(inject(function(_$rootScope_, _log_) {
|
|
$rootScope = _$rootScope_;
|
|
log = _log_;
|
|
deregister = $rootScope.$watchCollection('obj', function logger(newVal, oldVal) {
|
|
var msg = {newVal: newVal, oldVal: oldVal};
|
|
|
|
if (newVal === oldVal) {
|
|
msg.identical = true;
|
|
}
|
|
|
|
log(msg);
|
|
});
|
|
}));
|
|
|
|
|
|
it('should not trigger if nothing change', inject(function($rootScope) {
|
|
$rootScope.$digest();
|
|
expect(log).toEqual([{ newVal: undefined, oldVal: undefined, identical: true }]);
|
|
log.reset();
|
|
|
|
$rootScope.$digest();
|
|
expect(log).toEqual([]);
|
|
}));
|
|
|
|
|
|
it('should allow deregistration', function() {
|
|
$rootScope.obj = [];
|
|
$rootScope.$digest();
|
|
expect(log.toArray().length).toBe(1);
|
|
log.reset();
|
|
|
|
$rootScope.obj.push('a');
|
|
deregister();
|
|
|
|
$rootScope.$digest();
|
|
expect(log).toEqual([]);
|
|
});
|
|
|
|
|
|
describe('array', function() {
|
|
|
|
it('should return oldCollection === newCollection only on the first listener call',
|
|
inject(function($rootScope, log) {
|
|
|
|
// first time should be identical
|
|
$rootScope.obj = ['a', 'b'];
|
|
$rootScope.$digest();
|
|
expect(log).toEqual([{newVal: ['a', 'b'], oldVal: ['a', 'b'], identical: true}]);
|
|
log.reset();
|
|
|
|
// second time should be different
|
|
$rootScope.obj[1] = 'c';
|
|
$rootScope.$digest();
|
|
expect(log).toEqual([{newVal: ['a', 'c'], oldVal: ['a', 'b']}]);
|
|
}));
|
|
|
|
|
|
it('should trigger when property changes into array', function() {
|
|
$rootScope.obj = 'test';
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: "test", oldVal: "test", identical: true}]);
|
|
|
|
$rootScope.obj = [];
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: [], oldVal: "test"}]);
|
|
|
|
$rootScope.obj = {};
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: {}, oldVal: []}]);
|
|
|
|
$rootScope.obj = [];
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: [], oldVal: {}}]);
|
|
|
|
$rootScope.obj = undefined;
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: undefined, oldVal: []}]);
|
|
});
|
|
|
|
|
|
it('should not trigger change when object in collection changes', function() {
|
|
$rootScope.obj = [{}];
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: [{}], oldVal: [{}], identical: true}]);
|
|
|
|
$rootScope.obj[0].name = 'foo';
|
|
$rootScope.$digest();
|
|
expect(log).toEqual([]);
|
|
});
|
|
|
|
|
|
it('should watch array properties', function() {
|
|
$rootScope.obj = [];
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: [], oldVal: [], identical: true}]);
|
|
|
|
$rootScope.obj.push('a');
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: ['a'], oldVal: []}]);
|
|
|
|
$rootScope.obj[0] = 'b';
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: ['b'], oldVal: ['a']}]);
|
|
|
|
$rootScope.obj.push([]);
|
|
$rootScope.obj.push({});
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: ['b', [], {}], oldVal: ['b']}]);
|
|
|
|
var temp = $rootScope.obj[1];
|
|
$rootScope.obj[1] = $rootScope.obj[2];
|
|
$rootScope.obj[2] = temp;
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: ['b', {}, []], oldVal: ['b', [], {}]}]);
|
|
|
|
$rootScope.obj.shift();
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: [{}, []], oldVal: ['b', {}, []]}]);
|
|
});
|
|
|
|
it('should not infinitely digest when current value is NaN', function() {
|
|
$rootScope.obj = [NaN];
|
|
expect(function() {
|
|
$rootScope.$digest();
|
|
}).not.toThrow();
|
|
});
|
|
|
|
it('should watch array-like objects like arrays', function() {
|
|
var arrayLikelog = [];
|
|
$rootScope.$watchCollection('arrayLikeObject', function logger(obj) {
|
|
forEach(obj, function(element) {
|
|
arrayLikelog.push(element.name);
|
|
});
|
|
});
|
|
document.body.innerHTML = "<p>" +
|
|
"<a name='x'>a</a>" +
|
|
"<a name='y'>b</a>" +
|
|
"</p>";
|
|
|
|
$rootScope.arrayLikeObject = document.getElementsByTagName('a');
|
|
$rootScope.$digest();
|
|
expect(arrayLikelog).toEqual(['x', 'y']);
|
|
});
|
|
});
|
|
|
|
|
|
describe('object', function() {
|
|
|
|
it('should return oldCollection === newCollection only on the first listener call',
|
|
inject(function($rootScope, log) {
|
|
|
|
$rootScope.obj = {'a': 'b'};
|
|
// first time should be identical
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: {'a': 'b'}, oldVal: {'a': 'b'}, identical: true}]);
|
|
|
|
// second time not identical
|
|
$rootScope.obj.a = 'c';
|
|
$rootScope.$digest();
|
|
expect(log).toEqual([{newVal: {'a': 'c'}, oldVal: {'a': 'b'}}]);
|
|
}));
|
|
|
|
|
|
it('should trigger when property changes into object', function() {
|
|
$rootScope.obj = 'test';
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: 'test', oldVal: 'test', identical: true}]);
|
|
|
|
$rootScope.obj = {};
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: {}, oldVal: 'test'}]);
|
|
});
|
|
|
|
|
|
it('should not trigger change when object in collection changes', function() {
|
|
$rootScope.obj = {name: {}};
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: {name: {}}, oldVal: {name: {}}, identical: true}]);
|
|
|
|
$rootScope.obj.name.bar = 'foo';
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([]);
|
|
});
|
|
|
|
|
|
it('should watch object properties', function() {
|
|
$rootScope.obj = {};
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: {}, oldVal: {}, identical: true}]);
|
|
|
|
$rootScope.obj.a= 'A';
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: {a: 'A'}, oldVal: {}}]);
|
|
|
|
$rootScope.obj.a = 'B';
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: {a: 'B'}, oldVal: {a: 'A'}}]);
|
|
|
|
$rootScope.obj.b = [];
|
|
$rootScope.obj.c = {};
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: {a: 'B', b: [], c: {}}, oldVal: {a: 'B'}}]);
|
|
|
|
var temp = $rootScope.obj.a;
|
|
$rootScope.obj.a = $rootScope.obj.b;
|
|
$rootScope.obj.c = temp;
|
|
$rootScope.$digest();
|
|
expect(log.empty()).
|
|
toEqual([{newVal: {a: [], b: {}, c: 'B'}, oldVal: {a: 'B', b: [], c: {}}}]);
|
|
|
|
delete $rootScope.obj.a;
|
|
$rootScope.$digest();
|
|
expect(log.empty()).toEqual([{newVal: {b: {}, c: 'B'}, oldVal: {a: [], b: {}, c: 'B'}}]);
|
|
});
|
|
|
|
it('should not infinitely digest when current value is NaN', function() {
|
|
$rootScope.obj = {a: NaN};
|
|
expect(function() {
|
|
$rootScope.$digest();
|
|
}).not.toThrow();
|
|
});
|
|
|
|
});
|
|
});
|
|
|
|
|
|
describe('optimizations', function() {
|
|
|
|
function setupWatches(scope, log) {
|
|
scope.$watch(function() { log('w1'); return scope.w1; }, log.fn('w1action'));
|
|
scope.$watch(function() { log('w2'); return scope.w2; }, log.fn('w2action'));
|
|
scope.$watch(function() { log('w3'); return scope.w3; }, log.fn('w3action'));
|
|
scope.$digest();
|
|
log.reset();
|
|
}
|
|
|
|
|
|
it('should check watches only once during an empty digest', inject(function(log, $rootScope) {
|
|
setupWatches($rootScope, log);
|
|
$rootScope.$digest();
|
|
expect(log).toEqual(['w1', 'w2', 'w3']);
|
|
}));
|
|
|
|
|
|
it('should quit digest early after we check the last watch that was previously dirty',
|
|
inject(function(log, $rootScope) {
|
|
setupWatches($rootScope, log);
|
|
$rootScope.w1 = 'x';
|
|
$rootScope.$digest();
|
|
expect(log).toEqual(['w1', 'w1action', 'w2', 'w3', 'w1']);
|
|
}));
|
|
|
|
|
|
it('should not quit digest early if a new watch was added from an existing watch action',
|
|
inject(function(log, $rootScope) {
|
|
setupWatches($rootScope, log);
|
|
$rootScope.$watch(log.fn('w4'), function() {
|
|
log('w4action');
|
|
$rootScope.$watch(log.fn('w5'), log.fn('w5action'));
|
|
});
|
|
$rootScope.$digest();
|
|
expect(log).toEqual(['w1', 'w2', 'w3', 'w4', 'w4action',
|
|
'w1', 'w2', 'w3', 'w4', 'w5', 'w5action',
|
|
'w1', 'w2', 'w3', 'w4', 'w5']);
|
|
}));
|
|
|
|
|
|
it('should not quit digest early if an evalAsync task was scheduled from a watch action',
|
|
inject(function(log, $rootScope) {
|
|
setupWatches($rootScope, log);
|
|
$rootScope.$watch(log.fn('w4'), function() {
|
|
log('w4action');
|
|
$rootScope.$evalAsync(function() {
|
|
log('evalAsync');
|
|
});
|
|
});
|
|
$rootScope.$digest();
|
|
expect(log).toEqual(['w1', 'w2', 'w3', 'w4', 'w4action', 'evalAsync',
|
|
'w1', 'w2', 'w3', 'w4']);
|
|
}));
|
|
|
|
|
|
it('should quit digest early but not too early when various watches fire', inject(function(log, $rootScope) {
|
|
setupWatches($rootScope, log);
|
|
$rootScope.$watch(function() { log('w4'); return $rootScope.w4; }, function(newVal) {
|
|
log('w4action');
|
|
$rootScope.w2 = newVal;
|
|
});
|
|
|
|
$rootScope.$digest();
|
|
log.reset();
|
|
|
|
$rootScope.w1 = 'x';
|
|
$rootScope.w4 = 'x';
|
|
$rootScope.$digest();
|
|
expect(log).toEqual(['w1', 'w1action', 'w2', 'w3', 'w4', 'w4action',
|
|
'w1', 'w2', 'w2action', 'w3', 'w4',
|
|
'w1', 'w2']);
|
|
}));
|
|
});
|
|
});
|
|
|
|
describe('$watchGroup', function() {
|
|
var scope;
|
|
var log;
|
|
|
|
beforeEach(inject(function($rootScope, _log_) {
|
|
scope = $rootScope.$new();
|
|
log = _log_;
|
|
}));
|
|
|
|
|
|
it('should detect a change to any one expression in the group', function() {
|
|
scope.$watchGroup(['a', 'b'], function(values, oldValues, s) {
|
|
expect(s).toBe(scope);
|
|
log(oldValues + ' >>> ' + values);
|
|
});
|
|
|
|
scope.a = 'foo';
|
|
scope.b = 'bar';
|
|
scope.$digest();
|
|
expect(log).toEqual('foo,bar >>> foo,bar');
|
|
|
|
log.reset();
|
|
scope.$digest();
|
|
expect(log).toEqual('');
|
|
|
|
scope.a = 'a';
|
|
scope.$digest();
|
|
expect(log).toEqual('foo,bar >>> a,bar');
|
|
|
|
log.reset();
|
|
scope.a = 'A';
|
|
scope.b = 'B';
|
|
scope.$digest();
|
|
expect(log).toEqual('a,bar >>> A,B');
|
|
});
|
|
|
|
|
|
it('should work for a group with just a single expression', function() {
|
|
scope.$watchGroup(['a'], function(values, oldValues, s) {
|
|
expect(s).toBe(scope);
|
|
log(oldValues + ' >>> ' + values);
|
|
});
|
|
|
|
scope.a = 'foo';
|
|
scope.$digest();
|
|
expect(log).toEqual('foo >>> foo');
|
|
|
|
log.reset();
|
|
scope.$digest();
|
|
expect(log).toEqual('');
|
|
|
|
scope.a = 'bar';
|
|
scope.$digest();
|
|
expect(log).toEqual('foo >>> bar');
|
|
});
|
|
|
|
|
|
it('should call the listener once when the array of watchExpressions is empty', function() {
|
|
scope.$watchGroup([], function(values, oldValues) {
|
|
log(oldValues + ' >>> ' + values);
|
|
});
|
|
|
|
expect(log).toEqual('');
|
|
scope.$digest();
|
|
expect(log).toEqual(' >>> ');
|
|
|
|
log.reset();
|
|
scope.$digest();
|
|
expect(log).toEqual('');
|
|
});
|
|
|
|
|
|
it('should not call watch action fn when watchGroup was deregistered', function() {
|
|
var deregisterMany = scope.$watchGroup(['a', 'b'], function(values, oldValues) {
|
|
log(oldValues + ' >>> ' + values);
|
|
}), deregisterOne = scope.$watchGroup(['a'], function(values, oldValues) {
|
|
log(oldValues + ' >>> ' + values);
|
|
}), deregisterNone = scope.$watchGroup([], function(values, oldValues) {
|
|
log(oldValues + ' >>> ' + values);
|
|
});
|
|
|
|
deregisterMany();
|
|
deregisterOne();
|
|
deregisterNone();
|
|
scope.a = 'xxx';
|
|
scope.b = 'yyy';
|
|
scope.$digest();
|
|
expect(log).toEqual('');
|
|
});
|
|
|
|
});
|
|
|
|
describe('$destroy', function() {
|
|
var first = null, middle = null, last = null, log = null;
|
|
|
|
beforeEach(inject(function($rootScope) {
|
|
log = '';
|
|
|
|
first = $rootScope.$new();
|
|
middle = $rootScope.$new();
|
|
last = $rootScope.$new();
|
|
|
|
first.$watch(function() { log += '1';});
|
|
middle.$watch(function() { log += '2';});
|
|
last.$watch(function() { log += '3';});
|
|
|
|
$rootScope.$digest();
|
|
log = '';
|
|
}));
|
|
|
|
|
|
it('should broadcast $destroy on rootScope', inject(function($rootScope) {
|
|
var spy = spyOn(angular, 'noop');
|
|
$rootScope.$on('$destroy', angular.noop);
|
|
$rootScope.$destroy();
|
|
$rootScope.$digest();
|
|
expect(log).toEqual('123');
|
|
expect(spy).toHaveBeenCalled();
|
|
expect($rootScope.$$destroyed).toBe(true);
|
|
}));
|
|
|
|
|
|
it('should remove first', inject(function($rootScope) {
|
|
first.$destroy();
|
|
$rootScope.$digest();
|
|
expect(log).toEqual('23');
|
|
}));
|
|
|
|
|
|
it('should remove middle', inject(function($rootScope) {
|
|
middle.$destroy();
|
|
$rootScope.$digest();
|
|
expect(log).toEqual('13');
|
|
}));
|
|
|
|
|
|
it('should remove last', inject(function($rootScope) {
|
|
last.$destroy();
|
|
$rootScope.$digest();
|
|
expect(log).toEqual('12');
|
|
}));
|
|
|
|
|
|
it('should broadcast the $destroy event', inject(function($rootScope, log) {
|
|
first.$on('$destroy', log.fn('first'));
|
|
first.$new().$on('$destroy', log.fn('first-child'));
|
|
|
|
first.$destroy();
|
|
expect(log).toEqual('first; first-child');
|
|
}));
|
|
|
|
|
|
it('should $destroy a scope only once and ignore any further destroy calls',
|
|
inject(function($rootScope) {
|
|
$rootScope.$digest();
|
|
expect(log).toBe('123');
|
|
|
|
first.$destroy();
|
|
|
|
// once a scope is destroyed apply should not do anything any more
|
|
first.$apply();
|
|
expect(log).toBe('123');
|
|
|
|
first.$destroy();
|
|
first.$destroy();
|
|
first.$apply();
|
|
expect(log).toBe('123');
|
|
}));
|
|
|
|
it('should broadcast the $destroy only once', inject(function($rootScope, log) {
|
|
var isolateScope = first.$new(true);
|
|
isolateScope.$on('$destroy', log.fn('event'));
|
|
first.$destroy();
|
|
isolateScope.$destroy();
|
|
expect(log).toEqual('event');
|
|
}));
|
|
|
|
it('should decrement ancestor $$listenerCount entries', inject(function($rootScope) {
|
|
var EVENT = 'fooEvent',
|
|
spy = jasmine.createSpy('listener'),
|
|
firstSecond = first.$new();
|
|
|
|
firstSecond.$on(EVENT, spy);
|
|
firstSecond.$on(EVENT, spy);
|
|
middle.$on(EVENT, spy);
|
|
|
|
expect($rootScope.$$listenerCount[EVENT]).toBe(3);
|
|
expect(first.$$listenerCount[EVENT]).toBe(2);
|
|
|
|
firstSecond.$destroy();
|
|
|
|
expect($rootScope.$$listenerCount[EVENT]).toBe(1);
|
|
expect(first.$$listenerCount[EVENT]).toBeUndefined();
|
|
|
|
$rootScope.$broadcast(EVENT);
|
|
expect(spy.callCount).toBe(1);
|
|
}));
|
|
|
|
|
|
it("should do nothing when a child event listener is registered after parent's destruction",
|
|
inject(function($rootScope) {
|
|
var parent = $rootScope.$new(),
|
|
child = parent.$new();
|
|
|
|
parent.$destroy();
|
|
var fn = child.$on('someEvent', function() {});
|
|
expect(fn).toBe(noop);
|
|
}));
|
|
|
|
|
|
it("should do nothing when a child watch is registered after parent's destruction",
|
|
inject(function($rootScope) {
|
|
var parent = $rootScope.$new(),
|
|
child = parent.$new();
|
|
|
|
parent.$destroy();
|
|
var fn = child.$watch('somePath', function() {});
|
|
expect(fn).toBe(noop);
|
|
}));
|
|
|
|
it("should do nothing when $apply()ing after parent's destruction", inject(function($rootScope) {
|
|
var parent = $rootScope.$new(),
|
|
child = parent.$new();
|
|
|
|
parent.$destroy();
|
|
|
|
var called = false;
|
|
function applyFunc() { called = true; }
|
|
child.$apply(applyFunc);
|
|
|
|
expect(called).toBe(false);
|
|
}));
|
|
|
|
it("should do nothing when $evalAsync()ing after parent's destruction", inject(function($rootScope, $timeout) {
|
|
var parent = $rootScope.$new(),
|
|
child = parent.$new();
|
|
|
|
parent.$destroy();
|
|
|
|
var called = false;
|
|
function applyFunc() { called = true; }
|
|
child.$evalAsync(applyFunc);
|
|
|
|
$timeout.verifyNoPendingTasks();
|
|
expect(called).toBe(false);
|
|
}));
|
|
|
|
|
|
it("should preserve all (own and inherited) model properties on a destroyed scope",
|
|
inject(function($rootScope) {
|
|
// This test simulates an async task (xhr response) interacting with the scope after the scope
|
|
// was destroyed. Since we can't abort the request, we should ensure that the task doesn't
|
|
// throw NPEs because the scope was cleaned up during destruction.
|
|
|
|
var parent = $rootScope.$new(),
|
|
child = parent.$new();
|
|
|
|
parent.parentModel = 'parent';
|
|
child.childModel = 'child';
|
|
|
|
child.$destroy();
|
|
|
|
expect(child.parentModel).toBe('parent');
|
|
expect(child.childModel).toBe('child');
|
|
}));
|
|
});
|
|
|
|
|
|
describe('$eval', function() {
|
|
it('should eval an expression', inject(function($rootScope) {
|
|
expect($rootScope.$eval('a=1')).toEqual(1);
|
|
expect($rootScope.a).toEqual(1);
|
|
|
|
$rootScope.$eval(function(self) {self.b=2;});
|
|
expect($rootScope.b).toEqual(2);
|
|
}));
|
|
|
|
|
|
it('should allow passing locals to the expression', inject(function($rootScope) {
|
|
expect($rootScope.$eval('a+1', {a: 2})).toBe(3);
|
|
|
|
$rootScope.$eval(function(scope, locals) {
|
|
scope.c = locals.b + 4;
|
|
}, {b: 3});
|
|
expect($rootScope.c).toBe(7);
|
|
}));
|
|
});
|
|
|
|
|
|
describe('$evalAsync', function() {
|
|
|
|
it('should run callback before $watch', inject(function($rootScope) {
|
|
var log = '';
|
|
var child = $rootScope.$new();
|
|
$rootScope.$evalAsync(function(scope) { log += 'parent.async;'; });
|
|
$rootScope.$watch('value', function() { log += 'parent.$digest;'; });
|
|
child.$evalAsync(function(scope) { log += 'child.async;'; });
|
|
child.$watch('value', function() { log += 'child.$digest;'; });
|
|
$rootScope.$digest();
|
|
expect(log).toEqual('parent.async;child.async;parent.$digest;child.$digest;');
|
|
}));
|
|
|
|
it('should not run another digest for an $$postDigest call', inject(function($rootScope) {
|
|
var internalWatchCount = 0;
|
|
var externalWatchCount = 0;
|
|
|
|
$rootScope.internalCount = 0;
|
|
$rootScope.externalCount = 0;
|
|
|
|
$rootScope.$evalAsync(function(scope) {
|
|
$rootScope.internalCount++;
|
|
});
|
|
|
|
$rootScope.$$postDigest(function(scope) {
|
|
$rootScope.externalCount++;
|
|
});
|
|
|
|
$rootScope.$watch('internalCount', function(value) {
|
|
internalWatchCount = value;
|
|
});
|
|
$rootScope.$watch('externalCount', function(value) {
|
|
externalWatchCount = value;
|
|
});
|
|
|
|
$rootScope.$digest();
|
|
|
|
expect(internalWatchCount).toEqual(1);
|
|
expect(externalWatchCount).toEqual(0);
|
|
}));
|
|
|
|
it('should run a $$postDigest call on all child scopes when a parent scope is digested', inject(function($rootScope) {
|
|
var parent = $rootScope.$new(),
|
|
child = parent.$new(),
|
|
count = 0;
|
|
|
|
$rootScope.$$postDigest(function() {
|
|
count++;
|
|
});
|
|
|
|
parent.$$postDigest(function() {
|
|
count++;
|
|
});
|
|
|
|
child.$$postDigest(function() {
|
|
count++;
|
|
});
|
|
|
|
expect(count).toBe(0);
|
|
$rootScope.$digest();
|
|
expect(count).toBe(3);
|
|
}));
|
|
|
|
it('should run a $$postDigest call even if the child scope is isolated', inject(function($rootScope) {
|
|
var parent = $rootScope.$new(),
|
|
child = parent.$new(true),
|
|
signature = '';
|
|
|
|
parent.$$postDigest(function() {
|
|
signature += 'A';
|
|
});
|
|
|
|
child.$$postDigest(function() {
|
|
signature += 'B';
|
|
});
|
|
|
|
expect(signature).toBe('');
|
|
$rootScope.$digest();
|
|
expect(signature).toBe('AB');
|
|
}));
|
|
|
|
it('should cause a $digest rerun', inject(function($rootScope) {
|
|
$rootScope.log = '';
|
|
$rootScope.value = 0;
|
|
$rootScope.$watch('value', function() {
|
|
$rootScope.log = $rootScope.log + ".";
|
|
});
|
|
$rootScope.$watch('init', function() {
|
|
$rootScope.$evalAsync('value = 123; log = log + "=" ');
|
|
expect($rootScope.value).toEqual(0);
|
|
});
|
|
$rootScope.$digest();
|
|
expect($rootScope.log).toEqual('.=.');
|
|
}));
|
|
|
|
it('should run async in the same order as added', inject(function($rootScope) {
|
|
$rootScope.log = '';
|
|
$rootScope.$evalAsync("log = log + 1");
|
|
$rootScope.$evalAsync("log = log + 2");
|
|
$rootScope.$digest();
|
|
expect($rootScope.log).toBe('12');
|
|
}));
|
|
|
|
it('should run async expressions in their proper context', inject(function($rootScope) {
|
|
var child = $rootScope.$new();
|
|
$rootScope.ctx = 'root context';
|
|
$rootScope.log = '';
|
|
child.ctx = 'child context';
|
|
child.log = '';
|
|
child.$evalAsync('log=ctx');
|
|
$rootScope.$digest();
|
|
expect($rootScope.log).toBe('');
|
|
expect(child.log).toBe('child context');
|
|
}));
|
|
|
|
it('should operate only with a single queue across all child and isolate scopes', inject(function($rootScope) {
|
|
var childScope = $rootScope.$new();
|
|
var isolateScope = $rootScope.$new(true);
|
|
|
|
$rootScope.$evalAsync('rootExpression');
|
|
childScope.$evalAsync('childExpression');
|
|
isolateScope.$evalAsync('isolateExpression');
|
|
|
|
expect(childScope.$$asyncQueue).toBe($rootScope.$$asyncQueue);
|
|
expect(isolateScope.$$asyncQueue).toBeUndefined();
|
|
expect($rootScope.$$asyncQueue).toEqual([
|
|
{scope: $rootScope, expression: 'rootExpression'},
|
|
{scope: childScope, expression: 'childExpression'},
|
|
{scope: isolateScope, expression: 'isolateExpression'}
|
|
]);
|
|
}));
|
|
|
|
|
|
describe('auto-flushing when queueing outside of an $apply', function() {
|
|
var log, $rootScope, $browser;
|
|
|
|
beforeEach(inject(function(_log_, _$rootScope_, _$browser_) {
|
|
log = _log_;
|
|
$rootScope = _$rootScope_;
|
|
$browser = _$browser_;
|
|
}));
|
|
|
|
|
|
it('should auto-flush the queue asynchronously and trigger digest', function() {
|
|
$rootScope.$evalAsync(log.fn('eval-ed!'));
|
|
$rootScope.$watch(log.fn('digesting'));
|
|
expect(log).toEqual([]);
|
|
|
|
$browser.defer.flush(0);
|
|
|
|
expect(log).toEqual(['eval-ed!', 'digesting', 'digesting']);
|
|
});
|
|
|
|
|
|
it('should not trigger digest asynchronously if the queue is empty in the next tick', function() {
|
|
$rootScope.$evalAsync(log.fn('eval-ed!'));
|
|
$rootScope.$watch(log.fn('digesting'));
|
|
expect(log).toEqual([]);
|
|
|
|
$rootScope.$digest();
|
|
|
|
expect(log).toEqual(['eval-ed!', 'digesting', 'digesting']);
|
|
log.reset();
|
|
|
|
$browser.defer.flush(0);
|
|
|
|
expect(log).toEqual([]);
|
|
});
|
|
|
|
|
|
it('should not schedule more than one auto-flush task', function() {
|
|
$rootScope.$evalAsync(log.fn('eval-ed 1!'));
|
|
$rootScope.$evalAsync(log.fn('eval-ed 2!'));
|
|
|
|
$browser.defer.flush(0);
|
|
expect(log).toEqual(['eval-ed 1!', 'eval-ed 2!']);
|
|
|
|
$browser.defer.flush(100000);
|
|
expect(log).toEqual(['eval-ed 1!', 'eval-ed 2!']);
|
|
});
|
|
});
|
|
});
|
|
|
|
|
|
describe('$apply', function() {
|
|
it('should apply expression with full lifecycle', inject(function($rootScope) {
|
|
var log = '';
|
|
var child = $rootScope.$new();
|
|
$rootScope.$watch('a', function(a) { log += '1'; });
|
|
child.$apply('$parent.a=0');
|
|
expect(log).toEqual('1');
|
|
}));
|
|
|
|
|
|
it('should catch exceptions', function() {
|
|
module(function($exceptionHandlerProvider) {
|
|
$exceptionHandlerProvider.mode('log');
|
|
});
|
|
inject(function($rootScope, $exceptionHandler, $log) {
|
|
var log = '';
|
|
var child = $rootScope.$new();
|
|
$rootScope.$watch('a', function(a) { log += '1'; });
|
|
$rootScope.a = 0;
|
|
child.$apply(function() { throw new Error('MyError'); });
|
|
expect(log).toEqual('1');
|
|
expect($exceptionHandler.errors[0].message).toEqual('MyError');
|
|
$log.error.logs.shift();
|
|
});
|
|
});
|
|
|
|
|
|
it('should log exceptions from $digest', function() {
|
|
module(function($rootScopeProvider, $exceptionHandlerProvider) {
|
|
$rootScopeProvider.digestTtl(2);
|
|
$exceptionHandlerProvider.mode('log');
|
|
});
|
|
inject(function($rootScope, $exceptionHandler) {
|
|
$rootScope.$watch('a', function() {$rootScope.b++;});
|
|
$rootScope.$watch('b', function() {$rootScope.a++;});
|
|
$rootScope.a = $rootScope.b = 0;
|
|
|
|
expect(function() {
|
|
$rootScope.$apply();
|
|
}).toThrow();
|
|
|
|
expect($exceptionHandler.errors[0]).toBeDefined();
|
|
|
|
expect($rootScope.$$phase).toBeNull();
|
|
});
|
|
});
|
|
|
|
|
|
describe('exceptions', function() {
|
|
var log;
|
|
beforeEach(module(function($exceptionHandlerProvider) {
|
|
$exceptionHandlerProvider.mode('log');
|
|
}));
|
|
beforeEach(inject(function($rootScope) {
|
|
log = '';
|
|
$rootScope.$watch(function() { log += '$digest;'; });
|
|
$rootScope.$digest();
|
|
log = '';
|
|
}));
|
|
|
|
|
|
it('should execute and return value and update', inject(
|
|
function($rootScope, $exceptionHandler) {
|
|
$rootScope.name = 'abc';
|
|
expect($rootScope.$apply(function(scope) {
|
|
return scope.name;
|
|
})).toEqual('abc');
|
|
expect(log).toEqual('$digest;');
|
|
expect($exceptionHandler.errors).toEqual([]);
|
|
}));
|
|
|
|
|
|
it('should catch exception and update', inject(function($rootScope, $exceptionHandler) {
|
|
var error = new Error('MyError');
|
|
$rootScope.$apply(function() { throw error; });
|
|
expect(log).toEqual('$digest;');
|
|
expect($exceptionHandler.errors).toEqual([error]);
|
|
}));
|
|
});
|
|
|
|
|
|
describe('recursive $apply protection', function() {
|
|
it('should throw an exception if $apply is called while an $apply is in progress', inject(
|
|
function($rootScope) {
|
|
expect(function() {
|
|
$rootScope.$apply(function() {
|
|
$rootScope.$apply();
|
|
});
|
|
}).toThrowMinErr('$rootScope', 'inprog', '$apply already in progress');
|
|
}));
|
|
|
|
|
|
it('should throw an exception if $apply is called while flushing evalAsync queue', inject(
|
|
function($rootScope) {
|
|
expect(function() {
|
|
$rootScope.$apply(function() {
|
|
$rootScope.$evalAsync(function() {
|
|
$rootScope.$apply();
|
|
});
|
|
});
|
|
}).toThrowMinErr('$rootScope', 'inprog', '$digest already in progress');
|
|
}));
|
|
|
|
|
|
it('should throw an exception if $apply is called while a watch is being initialized', inject(
|
|
function($rootScope) {
|
|
var childScope1 = $rootScope.$new();
|
|
childScope1.$watch('x', function() {
|
|
childScope1.$apply();
|
|
});
|
|
expect(function() { childScope1.$apply(); }).toThrowMinErr('$rootScope', 'inprog', '$digest already in progress');
|
|
}));
|
|
|
|
|
|
it('should thrown an exception if $apply in called from a watch fn (after init)', inject(
|
|
function($rootScope) {
|
|
var childScope2 = $rootScope.$new();
|
|
childScope2.$apply(function() {
|
|
childScope2.$watch('x', function(newVal, oldVal) {
|
|
if (newVal !== oldVal) {
|
|
childScope2.$apply();
|
|
}
|
|
});
|
|
});
|
|
|
|
expect(function() {
|
|
childScope2.$apply(function() {
|
|
childScope2.x = 'something';
|
|
});
|
|
}).toThrowMinErr('$rootScope', 'inprog', '$digest already in progress');
|
|
}));
|
|
});
|
|
});
|
|
|
|
|
|
describe('$applyAsync', function() {
|
|
beforeEach(module(function($exceptionHandlerProvider) {
|
|
$exceptionHandlerProvider.mode('log');
|
|
}));
|
|
|
|
|
|
it('should evaluate in the context of specific $scope', inject(function($rootScope, $browser) {
|
|
var scope = $rootScope.$new();
|
|
scope.$applyAsync('x = "CODE ORANGE"');
|
|
|
|
$browser.defer.flush();
|
|
expect(scope.x).toBe('CODE ORANGE');
|
|
expect($rootScope.x).toBeUndefined();
|
|
}));
|
|
|
|
|
|
it('should evaluate queued expressions in order', inject(function($rootScope, $browser) {
|
|
$rootScope.x = [];
|
|
$rootScope.$applyAsync('x.push("expr1")');
|
|
$rootScope.$applyAsync('x.push("expr2")');
|
|
|
|
$browser.defer.flush();
|
|
expect($rootScope.x).toEqual(['expr1', 'expr2']);
|
|
}));
|
|
|
|
|
|
it('should evaluate subsequently queued items in same turn', inject(function($rootScope, $browser) {
|
|
$rootScope.x = [];
|
|
$rootScope.$applyAsync(function() {
|
|
$rootScope.x.push('expr1');
|
|
$rootScope.$applyAsync('x.push("expr2")');
|
|
expect($browser.deferredFns.length).toBe(0);
|
|
});
|
|
|
|
$browser.defer.flush();
|
|
expect($rootScope.x).toEqual(['expr1', 'expr2']);
|
|
}));
|
|
|
|
|
|
it('should pass thrown exceptions to $exceptionHandler', inject(function($rootScope, $browser, $exceptionHandler) {
|
|
$rootScope.$applyAsync(function() {
|
|
throw 'OOPS';
|
|
});
|
|
|
|
$browser.defer.flush();
|
|
expect($exceptionHandler.errors).toEqual([
|
|
'OOPS'
|
|
]);
|
|
}));
|
|
|
|
|
|
it('should evaluate subsequent expressions after an exception is thrown', inject(function($rootScope, $browser) {
|
|
$rootScope.$applyAsync(function() {
|
|
throw 'OOPS';
|
|
});
|
|
$rootScope.$applyAsync('x = "All good!"');
|
|
|
|
$browser.defer.flush();
|
|
expect($rootScope.x).toBe('All good!');
|
|
}));
|
|
|
|
|
|
it('should be cancelled if a $rootScope digest occurs before the next tick', inject(function($rootScope, $browser) {
|
|
var apply = spyOn($rootScope, '$apply').andCallThrough();
|
|
var cancel = spyOn($browser.defer, 'cancel').andCallThrough();
|
|
var expression = jasmine.createSpy('expr');
|
|
|
|
$rootScope.$applyAsync(expression);
|
|
$rootScope.$digest();
|
|
expect(expression).toHaveBeenCalledOnce();
|
|
expect(cancel).toHaveBeenCalledOnce();
|
|
expression.reset();
|
|
cancel.reset();
|
|
|
|
// assert that we no longer are waiting to execute
|
|
expect($browser.deferredFns.length).toBe(0);
|
|
|
|
// assert that another digest won't call the function again
|
|
$rootScope.$digest();
|
|
expect(expression).not.toHaveBeenCalled();
|
|
expect(cancel).not.toHaveBeenCalled();
|
|
}));
|
|
});
|
|
|
|
|
|
describe('events', function() {
|
|
|
|
describe('$on', function() {
|
|
|
|
it('should add listener for both $emit and $broadcast events', inject(function($rootScope) {
|
|
var log = '',
|
|
child = $rootScope.$new();
|
|
|
|
function eventFn() {
|
|
log += 'X';
|
|
}
|
|
|
|
child.$on('abc', eventFn);
|
|
expect(log).toEqual('');
|
|
|
|
child.$emit('abc');
|
|
expect(log).toEqual('X');
|
|
|
|
child.$broadcast('abc');
|
|
expect(log).toEqual('XX');
|
|
}));
|
|
|
|
|
|
it('should increment ancestor $$listenerCount entries', inject(function($rootScope) {
|
|
var child1 = $rootScope.$new(),
|
|
child2 = child1.$new(),
|
|
spy = jasmine.createSpy();
|
|
|
|
$rootScope.$on('event1', spy);
|
|
expect($rootScope.$$listenerCount).toEqual({event1: 1});
|
|
|
|
child1.$on('event1', spy);
|
|
expect($rootScope.$$listenerCount).toEqual({event1: 2});
|
|
expect(child1.$$listenerCount).toEqual({event1: 1});
|
|
|
|
child2.$on('event2', spy);
|
|
expect($rootScope.$$listenerCount).toEqual({event1: 2, event2: 1});
|
|
expect(child1.$$listenerCount).toEqual({event1: 1, event2: 1});
|
|
expect(child2.$$listenerCount).toEqual({event2: 1});
|
|
}));
|
|
|
|
|
|
describe('deregistration', function() {
|
|
|
|
it('should return a function that deregisters the listener', inject(function($rootScope) {
|
|
var log = '',
|
|
child = $rootScope.$new(),
|
|
listenerRemove;
|
|
|
|
function eventFn() {
|
|
log += 'X';
|
|
}
|
|
|
|
listenerRemove = child.$on('abc', eventFn);
|
|
expect(log).toEqual('');
|
|
expect(listenerRemove).toBeDefined();
|
|
|
|
child.$emit('abc');
|
|
child.$broadcast('abc');
|
|
expect(log).toEqual('XX');
|
|
expect($rootScope.$$listenerCount['abc']).toBe(1);
|
|
|
|
log = '';
|
|
listenerRemove();
|
|
child.$emit('abc');
|
|
child.$broadcast('abc');
|
|
expect(log).toEqual('');
|
|
expect($rootScope.$$listenerCount['abc']).toBeUndefined();
|
|
}));
|
|
|
|
|
|
it('should decrement ancestor $$listenerCount entries', inject(function($rootScope) {
|
|
var child1 = $rootScope.$new(),
|
|
child2 = child1.$new(),
|
|
spy = jasmine.createSpy();
|
|
|
|
$rootScope.$on('event1', spy);
|
|
expect($rootScope.$$listenerCount).toEqual({event1: 1});
|
|
|
|
child1.$on('event1', spy);
|
|
expect($rootScope.$$listenerCount).toEqual({event1: 2});
|
|
expect(child1.$$listenerCount).toEqual({event1: 1});
|
|
|
|
var deregisterEvent2Listener = child2.$on('event2', spy);
|
|
expect($rootScope.$$listenerCount).toEqual({event1: 2, event2: 1});
|
|
expect(child1.$$listenerCount).toEqual({event1: 1, event2: 1});
|
|
expect(child2.$$listenerCount).toEqual({event2: 1});
|
|
|
|
deregisterEvent2Listener();
|
|
|
|
expect($rootScope.$$listenerCount).toEqual({event1: 2});
|
|
expect(child1.$$listenerCount).toEqual({event1: 1});
|
|
expect(child2.$$listenerCount).toEqual({});
|
|
}));
|
|
|
|
|
|
it('should not decrement $$listenerCount when called second time', inject(function($rootScope) {
|
|
var child = $rootScope.$new(),
|
|
listener1Spy = jasmine.createSpy(),
|
|
listener2Spy = jasmine.createSpy();
|
|
|
|
child.$on('abc', listener1Spy);
|
|
expect($rootScope.$$listenerCount).toEqual({abc: 1});
|
|
expect(child.$$listenerCount).toEqual({abc: 1});
|
|
|
|
var deregisterEventListener = child.$on('abc', listener2Spy);
|
|
expect($rootScope.$$listenerCount).toEqual({abc: 2});
|
|
expect(child.$$listenerCount).toEqual({abc: 2});
|
|
|
|
deregisterEventListener();
|
|
|
|
expect($rootScope.$$listenerCount).toEqual({abc: 1});
|
|
expect(child.$$listenerCount).toEqual({abc: 1});
|
|
|
|
deregisterEventListener();
|
|
|
|
expect($rootScope.$$listenerCount).toEqual({abc: 1});
|
|
expect(child.$$listenerCount).toEqual({abc: 1});
|
|
}));
|
|
});
|
|
});
|
|
|
|
|
|
describe('$emit', function() {
|
|
var log, child, grandChild, greatGrandChild;
|
|
|
|
function logger(event) {
|
|
log += event.currentScope.id + '>';
|
|
}
|
|
|
|
beforeEach(module(function($exceptionHandlerProvider) {
|
|
$exceptionHandlerProvider.mode('log');
|
|
}));
|
|
beforeEach(inject(function($rootScope) {
|
|
log = '';
|
|
child = $rootScope.$new();
|
|
grandChild = child.$new();
|
|
greatGrandChild = grandChild.$new();
|
|
|
|
$rootScope.id = 0;
|
|
child.id = 1;
|
|
grandChild.id = 2;
|
|
greatGrandChild.id = 3;
|
|
|
|
$rootScope.$on('myEvent', logger);
|
|
child.$on('myEvent', logger);
|
|
grandChild.$on('myEvent', logger);
|
|
greatGrandChild.$on('myEvent', logger);
|
|
}));
|
|
|
|
it('should bubble event up to the root scope', function() {
|
|
grandChild.$emit('myEvent');
|
|
expect(log).toEqual('2>1>0>');
|
|
});
|
|
|
|
it('should allow all events on the same scope to run even if stopPropagation is called', function() {
|
|
child.$on('myEvent', logger);
|
|
grandChild.$on('myEvent', function(e) { e.stopPropagation(); });
|
|
grandChild.$on('myEvent', logger);
|
|
grandChild.$on('myEvent', logger);
|
|
grandChild.$emit('myEvent');
|
|
expect(log).toEqual('2>2>2>');
|
|
});
|
|
|
|
it('should dispatch exceptions to the $exceptionHandler',
|
|
inject(function($exceptionHandler) {
|
|
child.$on('myEvent', function() { throw 'bubbleException'; });
|
|
grandChild.$emit('myEvent');
|
|
expect(log).toEqual('2>1>0>');
|
|
expect($exceptionHandler.errors).toEqual(['bubbleException']);
|
|
}));
|
|
|
|
|
|
it('should allow stopping event propagation', function() {
|
|
child.$on('myEvent', function(event) { event.stopPropagation(); });
|
|
grandChild.$emit('myEvent');
|
|
expect(log).toEqual('2>1>');
|
|
});
|
|
|
|
|
|
it('should forward method arguments', function() {
|
|
child.$on('abc', function(event, arg1, arg2) {
|
|
expect(event.name).toBe('abc');
|
|
expect(arg1).toBe('arg1');
|
|
expect(arg2).toBe('arg2');
|
|
});
|
|
child.$emit('abc', 'arg1', 'arg2');
|
|
});
|
|
|
|
|
|
it('should allow removing event listener inside a listener on $emit', function() {
|
|
var spy1 = jasmine.createSpy('1st listener');
|
|
var spy2 = jasmine.createSpy('2nd listener');
|
|
var spy3 = jasmine.createSpy('3rd listener');
|
|
|
|
var remove1 = child.$on('evt', spy1);
|
|
var remove2 = child.$on('evt', spy2);
|
|
var remove3 = child.$on('evt', spy3);
|
|
|
|
spy1.andCallFake(remove1);
|
|
|
|
expect(child.$$listeners['evt'].length).toBe(3);
|
|
|
|
// should call all listeners and remove 1st
|
|
child.$emit('evt');
|
|
expect(spy1).toHaveBeenCalledOnce();
|
|
expect(spy2).toHaveBeenCalledOnce();
|
|
expect(spy3).toHaveBeenCalledOnce();
|
|
expect(child.$$listeners['evt'].length).toBe(3); // cleanup will happen on next $emit
|
|
|
|
spy1.reset();
|
|
spy2.reset();
|
|
spy3.reset();
|
|
|
|
// should call only 2nd because 1st was already removed and 2nd removes 3rd
|
|
spy2.andCallFake(remove3);
|
|
child.$emit('evt');
|
|
expect(spy1).not.toHaveBeenCalled();
|
|
expect(spy2).toHaveBeenCalledOnce();
|
|
expect(spy3).not.toHaveBeenCalled();
|
|
expect(child.$$listeners['evt'].length).toBe(1);
|
|
});
|
|
|
|
|
|
it('should allow removing event listener inside a listener on $broadcast', function() {
|
|
var spy1 = jasmine.createSpy('1st listener');
|
|
var spy2 = jasmine.createSpy('2nd listener');
|
|
var spy3 = jasmine.createSpy('3rd listener');
|
|
|
|
var remove1 = child.$on('evt', spy1);
|
|
var remove2 = child.$on('evt', spy2);
|
|
var remove3 = child.$on('evt', spy3);
|
|
|
|
spy1.andCallFake(remove1);
|
|
|
|
expect(child.$$listeners['evt'].length).toBe(3);
|
|
|
|
// should call all listeners and remove 1st
|
|
child.$broadcast('evt');
|
|
expect(spy1).toHaveBeenCalledOnce();
|
|
expect(spy2).toHaveBeenCalledOnce();
|
|
expect(spy3).toHaveBeenCalledOnce();
|
|
expect(child.$$listeners['evt'].length).toBe(3); //cleanup will happen on next $broadcast
|
|
|
|
spy1.reset();
|
|
spy2.reset();
|
|
spy3.reset();
|
|
|
|
// should call only 2nd because 1st was already removed and 2nd removes 3rd
|
|
spy2.andCallFake(remove3);
|
|
child.$broadcast('evt');
|
|
expect(spy1).not.toHaveBeenCalled();
|
|
expect(spy2).toHaveBeenCalledOnce();
|
|
expect(spy3).not.toHaveBeenCalled();
|
|
expect(child.$$listeners['evt'].length).toBe(1);
|
|
});
|
|
|
|
|
|
describe('event object', function() {
|
|
it('should have methods/properties', function() {
|
|
var eventFired = false;
|
|
|
|
child.$on('myEvent', function(e) {
|
|
expect(e.targetScope).toBe(grandChild);
|
|
expect(e.currentScope).toBe(child);
|
|
expect(e.name).toBe('myEvent');
|
|
eventFired = true;
|
|
});
|
|
grandChild.$emit('myEvent');
|
|
expect(eventFired).toBe(true);
|
|
});
|
|
|
|
|
|
it('should have its `currentScope` property set to null after emit', function() {
|
|
var event;
|
|
|
|
child.$on('myEvent', function(e) {
|
|
event = e;
|
|
});
|
|
grandChild.$emit('myEvent');
|
|
|
|
expect(event.currentScope).toBe(null);
|
|
expect(event.targetScope).toBe(grandChild);
|
|
expect(event.name).toBe('myEvent');
|
|
});
|
|
|
|
|
|
it('should have preventDefault method and defaultPrevented property', function() {
|
|
var event = grandChild.$emit('myEvent');
|
|
expect(event.defaultPrevented).toBe(false);
|
|
|
|
child.$on('myEvent', function(event) {
|
|
event.preventDefault();
|
|
});
|
|
event = grandChild.$emit('myEvent');
|
|
expect(event.defaultPrevented).toBe(true);
|
|
expect(event.currentScope).toBe(null);
|
|
});
|
|
});
|
|
});
|
|
|
|
|
|
describe('$broadcast', function() {
|
|
describe('event propagation', function() {
|
|
var log, child1, child2, child3, grandChild11, grandChild21, grandChild22, grandChild23,
|
|
greatGrandChild211;
|
|
|
|
function logger(event) {
|
|
log += event.currentScope.id + '>';
|
|
}
|
|
|
|
beforeEach(inject(function($rootScope) {
|
|
log = '';
|
|
child1 = $rootScope.$new();
|
|
child2 = $rootScope.$new();
|
|
child3 = $rootScope.$new();
|
|
grandChild11 = child1.$new();
|
|
grandChild21 = child2.$new();
|
|
grandChild22 = child2.$new();
|
|
grandChild23 = child2.$new();
|
|
greatGrandChild211 = grandChild21.$new();
|
|
|
|
$rootScope.id = 0;
|
|
child1.id = 1;
|
|
child2.id = 2;
|
|
child3.id = 3;
|
|
grandChild11.id = 11;
|
|
grandChild21.id = 21;
|
|
grandChild22.id = 22;
|
|
grandChild23.id = 23;
|
|
greatGrandChild211.id = 211;
|
|
|
|
$rootScope.$on('myEvent', logger);
|
|
child1.$on('myEvent', logger);
|
|
child2.$on('myEvent', logger);
|
|
child3.$on('myEvent', logger);
|
|
grandChild11.$on('myEvent', logger);
|
|
grandChild21.$on('myEvent', logger);
|
|
grandChild22.$on('myEvent', logger);
|
|
grandChild23.$on('myEvent', logger);
|
|
greatGrandChild211.$on('myEvent', logger);
|
|
|
|
// R
|
|
// / | \
|
|
// 1 2 3
|
|
// / / | \
|
|
// 11 21 22 23
|
|
// |
|
|
// 211
|
|
}));
|
|
|
|
|
|
it('should broadcast an event from the root scope', inject(function($rootScope) {
|
|
$rootScope.$broadcast('myEvent');
|
|
expect(log).toBe('0>1>11>2>21>211>22>23>3>');
|
|
}));
|
|
|
|
|
|
it('should broadcast an event from a child scope', function() {
|
|
child2.$broadcast('myEvent');
|
|
expect(log).toBe('2>21>211>22>23>');
|
|
});
|
|
|
|
|
|
it('should broadcast an event from a leaf scope with a sibling', function() {
|
|
grandChild22.$broadcast('myEvent');
|
|
expect(log).toBe('22>');
|
|
});
|
|
|
|
|
|
it('should broadcast an event from a leaf scope without a sibling', function() {
|
|
grandChild23.$broadcast('myEvent');
|
|
expect(log).toBe('23>');
|
|
});
|
|
|
|
|
|
it('should not not fire any listeners for other events', inject(function($rootScope) {
|
|
$rootScope.$broadcast('fooEvent');
|
|
expect(log).toBe('');
|
|
}));
|
|
|
|
|
|
it('should not descend past scopes with a $$listerCount of 0 or undefined',
|
|
inject(function($rootScope) {
|
|
var EVENT = 'fooEvent',
|
|
spy = jasmine.createSpy('listener');
|
|
|
|
// Precondition: There should be no listeners for fooEvent.
|
|
expect($rootScope.$$listenerCount[EVENT]).toBeUndefined();
|
|
|
|
// Add a spy listener to a child scope.
|
|
$rootScope.$$childHead.$$listeners[EVENT] = [spy];
|
|
|
|
// $rootScope's count for 'fooEvent' is undefined, so spy should not be called.
|
|
$rootScope.$broadcast(EVENT);
|
|
expect(spy).not.toHaveBeenCalled();
|
|
}));
|
|
|
|
|
|
it('should return event object', function() {
|
|
var result = child1.$broadcast('some');
|
|
|
|
expect(result).toBeDefined();
|
|
expect(result.name).toBe('some');
|
|
expect(result.targetScope).toBe(child1);
|
|
});
|
|
});
|
|
|
|
|
|
describe('listener', function() {
|
|
it('should receive event object', inject(function($rootScope) {
|
|
var scope = $rootScope,
|
|
child = scope.$new(),
|
|
eventFired = false;
|
|
|
|
child.$on('fooEvent', function(event) {
|
|
eventFired = true;
|
|
expect(event.name).toBe('fooEvent');
|
|
expect(event.targetScope).toBe(scope);
|
|
expect(event.currentScope).toBe(child);
|
|
});
|
|
scope.$broadcast('fooEvent');
|
|
|
|
expect(eventFired).toBe(true);
|
|
}));
|
|
|
|
|
|
it("should have the event's `currentScope` property set to null after broadcast",
|
|
inject(function($rootScope) {
|
|
var scope = $rootScope,
|
|
child = scope.$new(),
|
|
event;
|
|
|
|
child.$on('fooEvent', function(e) {
|
|
event = e;
|
|
});
|
|
scope.$broadcast('fooEvent');
|
|
|
|
expect(event.name).toBe('fooEvent');
|
|
expect(event.targetScope).toBe(scope);
|
|
expect(event.currentScope).toBe(null);
|
|
}));
|
|
|
|
|
|
it('should support passing messages as varargs', inject(function($rootScope) {
|
|
var scope = $rootScope,
|
|
child = scope.$new(),
|
|
args;
|
|
|
|
child.$on('fooEvent', function() {
|
|
args = arguments;
|
|
});
|
|
scope.$broadcast('fooEvent', 'do', 're', 'me', 'fa');
|
|
|
|
expect(args.length).toBe(5);
|
|
expect(sliceArgs(args, 1)).toEqual(['do', 're', 'me', 'fa']);
|
|
}));
|
|
});
|
|
});
|
|
});
|
|
|
|
describe("doc examples", function() {
|
|
|
|
it("should properly fire off watch listeners upon scope changes", inject(function($rootScope) {
|
|
//<docs tag="docs1">
|
|
var scope = $rootScope.$new();
|
|
scope.salutation = 'Hello';
|
|
scope.name = 'World';
|
|
|
|
expect(scope.greeting).toEqual(undefined);
|
|
|
|
scope.$watch('name', function() {
|
|
scope.greeting = scope.salutation + ' ' + scope.name + '!';
|
|
}); // initialize the watch
|
|
|
|
expect(scope.greeting).toEqual(undefined);
|
|
scope.name = 'Misko';
|
|
// still old value, since watches have not been called yet
|
|
expect(scope.greeting).toEqual(undefined);
|
|
|
|
scope.$digest(); // fire all the watches
|
|
expect(scope.greeting).toEqual('Hello Misko!');
|
|
//</docs>
|
|
}));
|
|
|
|
});
|
|
});
|