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authorMisko Hevery2012-03-23 14:03:24 -0700
committerMisko Hevery2012-03-28 11:16:35 -0700
commit2430f52bb97fa9d682e5f028c977c5bf94c5ec38 (patch)
treee7529b741d70199f36d52090b430510bad07f233 /test/ng/rootScopeSpec.js
parent944098a4e0f753f06b40c73ca3e79991cec6c2e2 (diff)
downloadangular.js-2430f52bb97fa9d682e5f028c977c5bf94c5ec38.tar.bz2
chore(module): move files around in preparation for more modules
Diffstat (limited to 'test/ng/rootScopeSpec.js')
-rw-r--r--test/ng/rootScopeSpec.js838
1 files changed, 838 insertions, 0 deletions
diff --git a/test/ng/rootScopeSpec.js b/test/ng/rootScopeSpec.js
new file mode 100644
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+++ b/test/ng/rootScopeSpec.js
@@ -0,0 +1,838 @@
+'use strict';
+
+describe('Scope', function() {
+
+ beforeEach(module(provideLog));
+
+
+ describe('$root', function() {
+ it('should point to itself', inject(function($rootScope) {
+ expect($rootScope.$root).toEqual($rootScope);
+ expect($rootScope.hasOwnProperty('$root')).toBeTruthy();
+ }));
+
+
+ it('should not have $root on children, but should inherit', inject(function($rootScope) {
+ var child = $rootScope.$new();
+ expect(child.$root).toEqual($rootScope);
+ expect(child.hasOwnProperty('$root')).toBeFalsy();
+ }));
+
+ });
+
+
+ describe('$parent', function() {
+ it('should point to itself in root', inject(function($rootScope) {
+ expect($rootScope.$root).toEqual($rootScope);
+ }));
+
+
+ it('should point to parent', inject(function($rootScope) {
+ var child = $rootScope.$new();
+ expect($rootScope.$parent).toEqual(null);
+ expect(child.$parent).toEqual($rootScope);
+ expect(child.$new().$parent).toEqual(child);
+ }));
+ });
+
+
+ describe('$id', function() {
+ it('should have a unique id', inject(function($rootScope) {
+ expect($rootScope.$id < $rootScope.$new().$id).toBeTruthy();
+ }));
+ });
+
+
+ describe('this', function() {
+ it('should have a \'this\'', inject(function($rootScope) {
+ expect($rootScope['this']).toEqual($rootScope);
+ }));
+ });
+
+
+ describe('$new()', function() {
+ it('should create a child scope', inject(function($rootScope) {
+ var child = $rootScope.$new();
+ $rootScope.a = 123;
+ expect(child.a).toEqual(123);
+ }));
+
+ it('should create a non prototypically inherited child scope', inject(function($rootScope) {
+ var child = $rootScope.$new(true);
+ $rootScope.a = 123;
+ expect(child.a).toBeUndefined();
+ expect(child.$parent).toEqual($rootScope);
+ expect(child.$new).toBe($rootScope.$new);
+ expect(child.$root).toBe($rootScope);
+ }));
+ });
+
+
+ describe('$watch/$digest', function() {
+ it('should watch and fire on simple property change', inject(function($rootScope) {
+ var spy = jasmine.createSpy();
+ $rootScope.$watch('name', spy);
+ $rootScope.$digest();
+ spy.reset();
+
+ expect(spy).not.wasCalled();
+ $rootScope.$digest();
+ expect(spy).not.wasCalled();
+ $rootScope.name = 'misko';
+ $rootScope.$digest();
+ expect(spy).wasCalledWith('misko', undefined, $rootScope);
+ }));
+
+
+ it('should watch and fire on expression change', inject(function($rootScope) {
+ var spy = jasmine.createSpy();
+ $rootScope.$watch('name.first', spy);
+ $rootScope.$digest();
+ spy.reset();
+
+ $rootScope.name = {};
+ expect(spy).not.wasCalled();
+ $rootScope.$digest();
+ expect(spy).not.wasCalled();
+ $rootScope.name.first = 'misko';
+ $rootScope.$digest();
+ expect(spy).wasCalled();
+ }));
+
+
+ it('should delegate exceptions', function() {
+ module(function($exceptionHandlerProvider) {
+ $exceptionHandlerProvider.mode('log');
+ });
+ inject(function($rootScope, $exceptionHandler, $log) {
+ $rootScope.$watch('a', function() {throw new Error('abc');});
+ $rootScope.a = 1;
+ $rootScope.$digest();
+ expect($exceptionHandler.errors[0].message).toEqual('abc');
+ $log.assertEmpty();
+ });
+ });
+
+
+ it('should fire watches in order of addition', inject(function($rootScope) {
+ // this is not an external guarantee, just our own sanity
+ var log = '';
+ $rootScope.$watch('a', function() { log += 'a'; });
+ $rootScope.$watch('b', function() { log += 'b'; });
+ $rootScope.$watch('c', function() { log += 'c'; });
+ $rootScope.a = $rootScope.b = $rootScope.c = 1;
+ $rootScope.$digest();
+ expect(log).toEqual('abc');
+ }));
+
+
+ it('should call child $watchers in addition order', inject(function($rootScope) {
+ // this is not an external guarantee, just our own sanity
+ var log = '';
+ var childA = $rootScope.$new();
+ var childB = $rootScope.$new();
+ var childC = $rootScope.$new();
+ childA.$watch('a', function() { log += 'a'; });
+ childB.$watch('b', function() { log += 'b'; });
+ childC.$watch('c', function() { log += 'c'; });
+ childA.a = childB.b = childC.c = 1;
+ $rootScope.$digest();
+ expect(log).toEqual('abc');
+ }));
+
+
+ it('should allow $digest on a child scope with and without a right sibling', inject(
+ function($rootScope) {
+ // tests a traversal edge case which we originally missed
+ var log = '',
+ childA = $rootScope.$new(),
+ childB = $rootScope.$new();
+
+ $rootScope.$watch(function() { log += 'r'; });
+ childA.$watch(function() { log += 'a'; });
+ childB.$watch(function() { log += 'b'; });
+
+ // init
+ $rootScope.$digest();
+ expect(log).toBe('rabrab');
+
+ log = '';
+ childA.$digest();
+ expect(log).toBe('a');
+
+ log = '';
+ childB.$digest();
+ expect(log).toBe('b');
+ }));
+
+
+ it('should repeat watch cycle while model changes are identified', inject(function($rootScope) {
+ var log = '';
+ $rootScope.$watch('c', function(v) {$rootScope.d = v; log+='c'; });
+ $rootScope.$watch('b', function(v) {$rootScope.c = v; log+='b'; });
+ $rootScope.$watch('a', function(v) {$rootScope.b = v; log+='a'; });
+ $rootScope.$digest();
+ log = '';
+ $rootScope.a = 1;
+ $rootScope.$digest();
+ expect($rootScope.b).toEqual(1);
+ expect($rootScope.c).toEqual(1);
+ expect($rootScope.d).toEqual(1);
+ expect(log).toEqual('abc');
+ }));
+
+
+ it('should repeat watch cycle from the root elemnt', inject(function($rootScope) {
+ var log = '';
+ var child = $rootScope.$new();
+ $rootScope.$watch(function() { log += 'a'; });
+ child.$watch(function() { log += 'b'; });
+ $rootScope.$digest();
+ expect(log).toEqual('abab');
+ }));
+
+
+ it('should prevent infinite recursion and print watcher expression',function() {
+ module(function($rootScopeProvider) {
+ $rootScopeProvider.digestTtl(100);
+ });
+ inject(function($rootScope) {
+ $rootScope.$watch('a', function() {$rootScope.b++;});
+ $rootScope.$watch('b', function() {$rootScope.a++;});
+ $rootScope.a = $rootScope.b = 0;
+
+ expect(function() {
+ $rootScope.$digest();
+ }).toThrow('100 $digest() iterations reached. Aborting!\n'+
+ 'Watchers fired in the last 5 iterations: ' +
+ '[["a; newVal: 96; oldVal: 95","b; newVal: 97; oldVal: 96"],' +
+ '["a; newVal: 97; oldVal: 96","b; newVal: 98; oldVal: 97"],' +
+ '["a; newVal: 98; oldVal: 97","b; newVal: 99; oldVal: 98"],' +
+ '["a; newVal: 99; oldVal: 98","b; newVal: 100; oldVal: 99"],' +
+ '["a; newVal: 100; oldVal: 99","b; newVal: 101; oldVal: 100"]]');
+ });
+ });
+
+
+ it('should prevent infinite recursion and print print watcher function name or body',
+ inject(function($rootScope) {
+ $rootScope.$watch(function watcherA() {return $rootScope.a;}, function() {$rootScope.b++;});
+ $rootScope.$watch(function() {return $rootScope.b;}, function() {$rootScope.a++;});
+ $rootScope.a = $rootScope.b = 0;
+
+ try {
+ $rootScope.$digest();
+ throw Error('Should have thrown exception');
+ } catch(e) {
+ expect(e.message.match(/"fn: (watcherA|function)/g).length).toBe(10);
+ }
+ }));
+
+
+ it('should not fire upon $watch registration on initial $digest', inject(function($rootScope) {
+ var log = '';
+ $rootScope.a = 1;
+ $rootScope.$watch('a', function() { log += 'a'; });
+ $rootScope.$watch('b', function() { log += 'b'; });
+ $rootScope.$digest();
+ log = '';
+ $rootScope.$digest();
+ expect(log).toEqual('');
+ }));
+
+
+ it('should watch objects', inject(function($rootScope) {
+ var log = '';
+ $rootScope.a = [];
+ $rootScope.b = {};
+ $rootScope.$watch('a', function(value) {
+ log +='.';
+ expect(value).toBe($rootScope.a);
+ }, true);
+ $rootScope.$watch('b', function(value) {
+ log +='!';
+ expect(value).toBe($rootScope.b);
+ }, true);
+ $rootScope.$digest();
+ log = '';
+
+ $rootScope.a.push({});
+ $rootScope.b.name = '';
+
+ $rootScope.$digest();
+ expect(log).toEqual('.!');
+ }));
+
+
+ it('should watch functions', function() {
+ module(provideLog);
+ inject(function($rootScope, log) {
+ $rootScope.fn = function() {return 'a'};
+ $rootScope.$watch('fn', function(fn) {
+ log(fn());
+ });
+ $rootScope.$digest();
+ expect(log).toEqual('a');
+ $rootScope.fn = function() {return 'b'};
+ $rootScope.$digest();
+ expect(log).toEqual('a; b');
+ })
+ });
+
+
+ it('should prevent $digest recursion', inject(function($rootScope) {
+ var callCount = 0;
+ $rootScope.$watch('name', function() {
+ expect(function() {
+ $rootScope.$digest();
+ }).toThrow('$digest already in progress');
+ callCount++;
+ });
+ $rootScope.name = 'a';
+ $rootScope.$digest();
+ expect(callCount).toEqual(1);
+ }));
+
+
+ it('should return a function that allows listeners to be unregistered', inject(
+ function($rootScope) {
+ var listener = jasmine.createSpy('watch listener'),
+ listenerRemove;
+
+ listenerRemove = $rootScope.$watch('foo', listener);
+ $rootScope.$digest(); //init
+ expect(listener).toHaveBeenCalled();
+ expect(listenerRemove).toBeDefined();
+
+ listener.reset();
+ $rootScope.foo = 'bar';
+ $rootScope.$digest(); //triger
+ expect(listener).toHaveBeenCalledOnce();
+
+ listener.reset();
+ $rootScope.foo = 'baz';
+ listenerRemove();
+ $rootScope.$digest(); //trigger
+ expect(listener).not.toHaveBeenCalled();
+ }));
+
+
+ it('should not infinitely digest when current value is NaN', inject(function($rootScope) {
+ $rootScope.$watch(function() { return NaN;});
+
+ expect(function() {
+ $rootScope.$digest();
+ }).not.toThrow();
+ }));
+
+
+ it('should always call the watchr with newVal and oldVal equal on the first run',
+ inject(function($rootScope) {
+ var log = [];
+ function logger(scope, newVal, oldVal) {
+ var val = (newVal === oldVal || (newVal !== oldVal && oldVal !== newVal)) ? newVal : 'xxx';
+ log.push(val);
+ }
+
+ $rootScope.$watch(function() { return NaN;}, logger);
+ $rootScope.$watch(function() { return undefined;}, logger);
+ $rootScope.$watch(function() { return '';}, logger);
+ $rootScope.$watch(function() { return false;}, logger);
+ $rootScope.$watch(function() { return {};}, logger, true);
+ $rootScope.$watch(function() { return 23;}, logger);
+
+ $rootScope.$digest();
+ expect(isNaN(log.shift())).toBe(true); //jasmine's toBe and toEqual don't work well with NaNs
+ expect(log).toEqual([undefined, '', false, {}, 23]);
+ log = [];
+ $rootScope.$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 ignore remove on root', inject(function($rootScope) {
+ $rootScope.$destroy();
+ $rootScope.$digest();
+ expect(log).toEqual('123');
+ }));
+
+
+ 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');
+ }));
+ });
+
+
+ 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;parent.$digest;child.async;child.$digest;');
+ }));
+
+ it('should cause a $digest rerun', inject(function($rootScope) {
+ $rootScope.log = '';
+ $rootScope.value = 0;
+ $rootScope.$watch('value', 'log = 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($rootScope.log).toBe('12');
+ }));
+
+ });
+
+
+ describe('$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');
+ $log.error.logs.shift();
+ });
+ });
+
+
+ describe('exceptions', function() {
+ var log;
+ beforeEach(module(function($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();
+ });
+ }).toThrow('$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();
+ });
+ });
+ }).toThrow('$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.$apply(); }).toThrow('$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';
+ }); }).toThrow('$digest already in progress');
+ }));
+ });
+ });
+
+
+ describe('events', function() {
+
+ describe('$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.$broadcast('abc');
+ expect(log).toEqual('XX');
+ }));
+
+
+ it('should return a function that deregisters the listener', inject(function($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.$broadcast('abc');
+ expect(log).toEqual('XX');
+
+ log = '';
+ listenerRemove();
+ child.$emit('abc');
+ child.$broadcast('abc');
+ expect(log).toEqual('');
+ }));
+ });
+
+
+ describe('$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 dispatch exceptions to the $exceptionHandler',
+ inject(function($exceptionHandler) {
+ child.$on('myEvent', function() { throw 'bubbleException'; });
+ grandChild.$emit('myEvent');
+ expect(log).toEqual('2>1>0>');
+ expect($exceptionHandler.errors).toEqual(['bubbleException']);
+ }));
+
+
+ it('should allow cancelation of event propagation', function() {
+ child.$on('myEvent', function(event) { event.cancel(); });
+ 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.$emit('abc', 'arg1', 'arg2');
+ });
+
+
+ it('should return event object with cancelled property', function() {
+ child.$on('some', function(event) {
+ event.cancel();
+ });
+
+ var result = grandChild.$emit('some');
+ expect(result).toBeDefined();
+ expect(result.cancelled).toBe(true);
+ });
+
+
+ describe('event object', function() {
+ it('should have methods/properties', function() {
+ var event;
+ child.$on('myEvent', function(e) {
+ expect(e.targetScope).toBe(grandChild);
+ expect(e.currentScope).toBe(child);
+ expect(e.name).toBe('myEvent');
+ event = e;
+ });
+ grandChild.$emit('myEvent');
+ expect(event).toBeDefined();
+ });
+ });
+ });
+
+
+ describe('$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 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(),
+ 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(child);
+ }));
+
+
+ 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']);
+ }));
+ });
+ });
+ });
+});