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-rw-r--r--test/InjectorSpec.js764
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diff --git a/test/InjectorSpec.js b/test/InjectorSpec.js
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--- a/test/InjectorSpec.js
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-'use strict';
-
-describe('injector', function() {
- var providers;
- var injector;
-
- beforeEach(module(function($provide) {
- providers = function(name, factory, annotations) {
- $provide.factory(name, extend(factory, annotations||{}));
- };
- }));
- beforeEach(inject(function($injector){
- injector = $injector;
- }));
-
-
- it("should return same instance from calling provider", function() {
- var instance = {},
- original = instance;
- providers('instance', function() { return instance; });
- expect(injector.get('instance')).toEqual(instance);
- instance = 'deleted';
- expect(injector.get('instance')).toEqual(original);
- });
-
-
- it('should inject providers', function() {
- providers('a', function() {return 'Mi';});
- providers('b', function(mi) {return mi+'sko';}, {$inject:['a']});
- expect(injector.get('b')).toEqual('Misko');
- });
-
-
- it('should resolve dependency graph and instantiate all services just once', function() {
- var log = [];
-
-// s1
-// / | \
-// / s2 \
-// / / | \ \
-// /s3 < s4 > s5
-// //
-// s6
-
-
- providers('s1', function() { log.push('s1'); }, {$inject: ['s2', 's5', 's6']});
- providers('s2', function() { log.push('s2'); }, {$inject: ['s3', 's4', 's5']});
- providers('s3', function() { log.push('s3'); }, {$inject: ['s6']});
- providers('s4', function() { log.push('s4'); }, {$inject: ['s3', 's5']});
- providers('s5', function() { log.push('s5'); });
- providers('s6', function() { log.push('s6'); });
-
- injector.get('s1');
-
- expect(log).toEqual(['s6', 's3', 's5', 's4', 's2', 's1']);
- });
-
-
- it('should provide useful message if no provider', function() {
- expect(function() {
- injector.get('idontexist');
- }).toThrow("Unknown provider: idontexistProvider <- idontexist");
- });
-
-
- it('should proved path to the missing provider', function() {
- providers('a', function(idontexist) {return 1;});
- providers('b', function(a) {return 2;});
- expect(function() {
- injector.get('b');
- }).toThrow("Unknown provider: idontexistProvider <- idontexist <- a <- b");
- });
-
-
- describe('invoke', function() {
- var args;
-
- beforeEach(function() {
- args = null;
- providers('a', function() {return 1;});
- providers('b', function() {return 2;});
- });
-
-
- function fn(a, b, c, d) {
- args = [this, a, b, c, d];
- return a + b + c + d;
- }
-
-
- it('should call function', function() {
- fn.$inject = ['a', 'b', 'c', 'd'];
- injector.invoke(fn, {name:"this"}, {c:3, d:4});
- expect(args).toEqual([{name:'this'}, 1, 2, 3, 4]);
- });
-
-
- it('should treat array as annotations', function() {
- injector.invoke(['a', 'b', 'c', 'd', fn], {name:"this"}, {c:3, d:4});
- expect(args).toEqual([{name:'this'}, 1, 2, 3, 4]);
- });
-
-
- it('should invoke the passed-in fn with all of the dependencies as arguments', function() {
- providers('c', function() {return 3;});
- providers('d', function() {return 4;});
- expect(injector.invoke(['a', 'b', 'c', 'd', fn])).toEqual(10);
- });
-
-
- it('should fail with errors if not function or array', function() {
- expect(function() {
- injector.invoke({});
- }).toThrow("Argument 'fn' is not a function, got Object");
- expect(function() {
- injector.invoke(['a', 123], {});
- }).toThrow("Argument 'fn' is not a function, got number");
- });
- });
-
-
- describe('annotation', function() {
- it('should return $inject', function() {
- function fn() {}
- fn.$inject = ['a'];
- expect(inferInjectionArgs(fn)).toBe(fn.$inject);
- expect(inferInjectionArgs(function() {})).toEqual([]);
- expect(inferInjectionArgs(function () {})).toEqual([]);
- expect(inferInjectionArgs(function () {})).toEqual([]);
- expect(inferInjectionArgs(function /* */ () {})).toEqual([]);
- });
-
-
- it('should create $inject', function() {
- // keep the multi-line to make sure we can handle it
- function $f_n0 /*
- */(
- $a, // x, <-- looks like an arg but it is a comment
- b_, /* z, <-- looks like an arg but it is a
- multi-line comment
- function (a, b) {}
- */
- _c,
- /* {some type} */ d) { extraParans();}
- expect(inferInjectionArgs($f_n0)).toEqual(['$a', 'b_', '_c', 'd']);
- expect($f_n0.$inject).toEqual(['$a', 'b_', '_c', 'd']);
- });
-
-
- it('should strip leading and trailing underscores from arg name during inference', function() {
- function beforeEachFn(_foo_) { /* foo = _foo_ */ };
- expect(inferInjectionArgs(beforeEachFn)).toEqual(['foo']);
- });
-
-
- it('should handle no arg functions', function() {
- function $f_n0() {}
- expect(inferInjectionArgs($f_n0)).toEqual([]);
- expect($f_n0.$inject).toEqual([]);
- });
-
-
- it('should handle args with both $ and _', function() {
- function $f_n0($a_) {}
- expect(inferInjectionArgs($f_n0)).toEqual(['$a_']);
- expect($f_n0.$inject).toEqual(['$a_']);
- });
-
-
- it('should throw on non function arg', function() {
- expect(function() {
- inferInjectionArgs({});
- }).toThrow();
- });
- });
-
-
- it('should have $injector', function() {
- var $injector = createInjector();
- expect($injector.get('$injector')).toBe($injector);
- });
-
-
- it('should define module', function() {
- var log = '';
- var injector = createInjector([function($provide) {
- $provide.value('value', 'value;');
- $provide.factory('fn', valueFn('function;'));
- $provide.provider('service', function() {
- this.$get = valueFn('service;');
- });
- }, function(valueProvider, fnProvider, serviceProvider) {
- log += valueProvider.$get() + fnProvider.$get() + serviceProvider.$get();
- }]).invoke(function(value, fn, service) {
- log += '->' + value + fn + service;
- });
- expect(log).toEqual('value;function;service;->value;function;service;');
- });
-
-
- describe('module', function() {
- it('should provide $injector even when no module is requested', function() {
- var $provide,
- $injector = createInjector([
- angular.extend(function(p) { $provide = p; }, {$inject: ['$provide']})
- ]);
- expect($injector.get('$injector')).toBe($injector);
- });
-
-
- it('should load multiple function modules and infer inject them', function() {
- var a = 'junk';
- var $injector = createInjector([
- function() {
- a = 'A'; // reset to prove we ran
- },
- function($provide) {
- $provide.value('a', a);
- },
- angular.extend(function(p, serviceA) {
- p.value('b', serviceA.$get() + 'B' );
- }, {$inject:['$provide', 'aProvider']}),
- ['$provide', 'bProvider', function(p, serviceB) {
- p.value('c', serviceB.$get() + 'C');
- }]
- ]);
- expect($injector.get('a')).toEqual('A');
- expect($injector.get('b')).toEqual('AB');
- expect($injector.get('c')).toEqual('ABC');
- });
-
-
- it('should run symbolic modules', function() {
- angularModule('myModule', []).value('a', 'abc');
- var $injector = createInjector(['myModule']);
- expect($injector.get('a')).toEqual('abc');
- });
-
-
- it('should error on invalid module name', function() {
- expect(function() {
- createInjector(['IDontExist'], {});
- }).toThrow("No module: IDontExist");
- });
-
-
- it('should load dependant modules only once', function() {
- var log = '';
- angular.module('a', [], function(){ log += 'a'; });
- angular.module('b', ['a'], function(){ log += 'b'; });
- angular.module('c', ['a', 'b'], function(){ log += 'c'; });
- createInjector(['c', 'c']);
- expect(log).toEqual('abc');
- });
-
- it('should execute runBlocks after injector creation', function() {
- var log = '';
- angular.module('a', [], function(){ log += 'a'; }).run(function() { log += 'A'; });
- angular.module('b', ['a'], function(){ log += 'b'; }).run(function() { log += 'B'; });
- createInjector([
- 'b',
- valueFn(function() { log += 'C'; }),
- [valueFn(function() { log += 'D'; })]
- ]);
- expect(log).toEqual('abABCD');
- });
-
- describe('$provide', function() {
- describe('constant', function() {
- it('should create configuration injectable constants', function() {
- var log = [];
- createInjector([
- function($provide){
- $provide.constant('abc', 123);
- $provide.constant({a: 'A', b:'B'});
- return function(a) {
- log.push(a);
- }
- },
- function(abc) {
- log.push(abc);
- return function(b) {
- log.push(b);
- }
- }
- ]).get('abc');
- expect(log).toEqual([123, 'A', 'B']);
- });
- });
-
-
- describe('value', function() {
- it('should configure $provide values', function() {
- expect(createInjector([function($provide) {
- $provide.value('value', 'abc');
- }]).get('value')).toEqual('abc');
- });
-
-
- it('should configure a set of values', function() {
- expect(createInjector([function($provide) {
- $provide.value({value: Array});
- }]).get('value')).toEqual(Array);
- });
- });
-
-
- describe('factory', function() {
- it('should configure $provide factory function', function() {
- expect(createInjector([function($provide) {
- $provide.factory('value', valueFn('abc'));
- }]).get('value')).toEqual('abc');
- });
-
-
- it('should configure a set of factories', function() {
- expect(createInjector([function($provide) {
- $provide.factory({value: Array});
- }]).get('value')).toEqual([]);
- });
- });
-
-
- describe('service', function() {
- it('should register a class', function() {
- var Type = function(value) {
- this.value = value;
- };
-
- var instance = createInjector([function($provide) {
- $provide.value('value', 123);
- $provide.service('foo', Type);
- }]).get('foo');
-
- expect(instance instanceof Type).toBe(true);
- expect(instance.value).toBe(123);
- });
-
-
- it('should register a set of classes', function() {
- var Type = function() {};
-
- var injector = createInjector([function($provide) {
- $provide.service({
- foo: Type,
- bar: Type
- });
- }]);
-
- expect(injector.get('foo') instanceof Type).toBe(true);
- expect(injector.get('bar') instanceof Type).toBe(true);
- });
- });
-
-
- describe('provider', function() {
- it('should configure $provide provider object', function() {
- expect(createInjector([function($provide) {
- $provide.provider('value', {
- $get: valueFn('abc')
- });
- }]).get('value')).toEqual('abc');
- });
-
-
- it('should configure $provide provider type', function() {
- function Type() {};
- Type.prototype.$get = function() {
- expect(this instanceof Type).toBe(true);
- return 'abc';
- };
- expect(createInjector([function($provide) {
- $provide.provider('value', Type);
- }]).get('value')).toEqual('abc');
- });
-
-
- it('should configure a set of providers', function() {
- expect(createInjector([function($provide) {
- $provide.provider({value: valueFn({$get:Array})});
- }]).get('value')).toEqual([]);
- });
- });
-
-
- describe('decorator', function() {
- var log, injector;
-
- beforeEach(function() {
- log = [];
- });
-
-
- it('should be called with the original instance', function() {
- injector = createInjector([function($provide) {
- $provide.value('myService', function(val) {
- log.push('myService:' + val);
- return 'origReturn';
- });
-
- $provide.decorator('myService', function($delegate) {
- return function(val) {
- log.push('myDecoratedService:' + val);
- var origVal = $delegate('decInput');
- return 'dec+' + origVal;
- };
- });
- }]);
-
- var out = injector.get('myService')('input');
- log.push(out);
- expect(log.join('; ')).
- toBe('myDecoratedService:input; myService:decInput; dec+origReturn');
- });
-
-
- it('should allow multiple decorators to be applied to a service', function() {
- injector = createInjector([function($provide) {
- $provide.value('myService', function(val) {
- log.push('myService:' + val);
- return 'origReturn';
- });
-
- $provide.decorator('myService', function($delegate) {
- return function(val) {
- log.push('myDecoratedService1:' + val);
- var origVal = $delegate('decInput1');
- return 'dec1+' + origVal;
- };
- });
-
- $provide.decorator('myService', function($delegate) {
- return function(val) {
- log.push('myDecoratedService2:' + val);
- var origVal = $delegate('decInput2');
- return 'dec2+' + origVal;
- };
- });
- }]);
-
- var out = injector.get('myService')('input');
- log.push(out);
- expect(log).toEqual(['myDecoratedService2:input',
- 'myDecoratedService1:decInput2',
- 'myService:decInput1',
- 'dec2+dec1+origReturn']);
- });
-
-
- it('should decorate services with dependencies', function() {
- injector = createInjector([function($provide) {
- $provide.value('dep1', 'dependency1');
-
- $provide.factory('myService', ['dep1', function(dep1) {
- return function(val) {
- log.push('myService:' + val + ',' + dep1);
- return 'origReturn';
- }
- }]);
-
- $provide.decorator('myService', function($delegate) {
- return function(val) {
- log.push('myDecoratedService:' + val);
- var origVal = $delegate('decInput');
- return 'dec+' + origVal;
- };
- });
- }]);
-
- var out = injector.get('myService')('input');
- log.push(out);
- expect(log.join('; ')).
- toBe('myDecoratedService:input; myService:decInput,dependency1; dec+origReturn');
- });
-
-
- it('should allow for decorators to be injectable', function() {
- injector = createInjector([function($provide) {
- $provide.value('dep1', 'dependency1');
-
- $provide.factory('myService', function() {
- return function(val) {
- log.push('myService:' + val);
- return 'origReturn';
- }
- });
-
- $provide.decorator('myService', function($delegate, dep1) {
- return function(val) {
- log.push('myDecoratedService:' + val + ',' + dep1);
- var origVal = $delegate('decInput');
- return 'dec+' + origVal;
- };
- });
- }]);
-
- var out = injector.get('myService')('input');
- log.push(out);
- expect(log.join('; ')).
- toBe('myDecoratedService:input,dependency1; myService:decInput; dec+origReturn');
- });
- });
- });
-
-
- describe('error handling', function() {
- it('should handle wrong argument type', function() {
- expect(function() {
- createInjector([
- {}
- ], {});
- }).toThrow("Argument 'module' is not a function, got Object");
- });
-
-
- it('should handle exceptions', function() {
- expect(function() {
- createInjector([function() {
- throw 'MyError';
- }], {});
- }).toThrow('MyError');
- });
-
-
- it('should decorate the missing service error with module name', function() {
- angular.module('TestModule', [], function($injector) {});
- expect(function() {
- createInjector(['TestModule']);
- }).toThrow('Unknown provider: $injector from TestModule');
- });
-
-
- it('should decorate the missing service error with module function', function() {
- function myModule($injector){}
- expect(function() {
- createInjector([myModule]);
- }).toThrow('Unknown provider: $injector from ' + myModule);
- });
-
-
- it('should decorate the missing service error with module array function', function() {
- function myModule($injector){}
- expect(function() {
- createInjector([['$injector', myModule]]);
- }).toThrow('Unknown provider: $injector from ' + myModule);
- });
-
-
- it('should throw error when trying to inject oneself', function() {
- expect(function() {
- createInjector([function($provide){
- $provide.factory('service', function(service){});
- return function(service) {}
- }])
- }).toThrow('Circular dependency: service');
- });
-
-
- it('should throw error when trying to inject circular dependency', function() {
- expect(function() {
- createInjector([function($provide){
- $provide.factory('a', function(b){});
- $provide.factory('b', function(a){});
- return function(a) {}
- }])
- }).toThrow('Circular dependency: b <- a');
- });
- });
- });
-
-
- describe('retrieval', function() {
- var instance,
- $injector,
- $provide;
-
- beforeEach(function() {
- $injector = createInjector([ ['$provide', function(provide) {
- ($provide = provide).value('instance', instance = {name:'angular'});
- }]]);
- });
-
-
- it('should retrieve by name and cache instance', function() {
- expect(instance).toEqual({name: 'angular'});
- expect($injector.get('instance')).toBe(instance);
- expect($injector.get('instance')).toBe(instance);
- });
-
-
- it('should call functions and infer arguments', function() {
- expect($injector.invoke(function(instance) { return instance; })).toBe(instance);
- expect($injector.invoke(function(instance) { return instance; })).toBe(instance);
- });
- });
-
-
- describe('method invoking', function() {
- var $injector;
-
- beforeEach(function() {
- $injector = createInjector([ function($provide) {
- $provide.value('book', 'moby');
- $provide.value('author', 'melville');
- }]);
- });
-
-
- it('should invoke method', function() {
- expect($injector.invoke(function(book, author) {
- return author + ':' + book;
- })).toEqual('melville:moby');
- expect($injector.invoke(function(book, author) {
- expect(this).toEqual($injector);
- return author + ':' + book;}, $injector)).toEqual('melville:moby');
- });
-
-
- it('should invoke method with locals', function() {
- expect($injector.invoke(function(book, author) {
- return author + ':' + book;
- })).toEqual('melville:moby');
- expect($injector.invoke(
- function(book, author, chapter) {
- expect(this).toEqual($injector);
- return author + ':' + book + '-' + chapter;
- }, $injector, {author:'m', chapter:'ch1'})).toEqual('m:moby-ch1');
- });
-
-
- it('should invoke method which is annotated', function() {
- expect($injector.invoke(extend(function(b, a) {
- return a + ':' + b
- }, {$inject:['book', 'author']}))).toEqual('melville:moby');
- expect($injector.invoke(extend(function(b, a) {
- expect(this).toEqual($injector);
- return a + ':' + b;
- }, {$inject:['book', 'author']}), $injector)).toEqual('melville:moby');
- });
-
-
- it('should invoke method which is an array of annotation', function() {
- expect($injector.invoke(function(book, author) {
- return author + ':' + book;
- })).toEqual('melville:moby');
- expect($injector.invoke(function(book, author) {
- expect(this).toEqual($injector);
- return author + ':' + book;
- }, $injector)).toEqual('melville:moby');
- });
-
-
- it('should throw usefull error on wrong argument type]', function() {
- expect(function() {
- $injector.invoke({});
- }).toThrow("Argument 'fn' is not a function, got Object");
- });
- });
-
-
- describe('service instantiation', function() {
- var $injector;
-
- beforeEach(function() {
- $injector = createInjector([ function($provide) {
- $provide.value('book', 'moby');
- $provide.value('author', 'melville');
- }]);
- });
-
-
- function Type(book, author) {
- this.book = book;
- this.author = author;
- }
- Type.prototype.title = function() {
- return this.author + ': ' + this.book;
- };
-
-
- it('should instantiate object and preserve constructor property and be instanceof', function() {
- var t = $injector.instantiate(Type);
- expect(t.book).toEqual('moby');
- expect(t.author).toEqual('melville');
- expect(t.title()).toEqual('melville: moby');
- expect(t instanceof Type).toBe(true);
- });
-
-
- it('should instantiate object and preserve constructor property and be instanceof ' +
- 'with the array annotated type', function() {
- var t = $injector.instantiate(['book', 'author', Type]);
- expect(t.book).toEqual('moby');
- expect(t.author).toEqual('melville');
- expect(t.title()).toEqual('melville: moby');
- expect(t instanceof Type).toBe(true);
- });
-
-
- it('should allow constructor to return different object', function() {
- var obj = {};
- var Class = function() {
- return obj;
- };
-
- expect($injector.instantiate(Class)).toBe(obj);
- });
-
-
- it('should handle constructor exception', function() {
- expect(function() {
- $injector.instantiate(function() { throw 'MyError'; });
- }).toThrow('MyError');
- });
-
-
- it('should return instance if constructor returns non-object value', function() {
- var A = function() {
- return 10;
- };
-
- var B = function() {
- return 'some-string';
- };
-
- var C = function() {
- return undefined;
- };
-
- expect($injector.instantiate(A) instanceof A).toBe(true);
- expect($injector.instantiate(B) instanceof B).toBe(true);
- expect($injector.instantiate(C) instanceof C).toBe(true);
- });
- });
-
- describe('protection modes', function() {
- it('should prevent provider lookup in app', function() {
- var $injector = createInjector([function($provide) {
- $provide.value('name', 'angular');
- }]);
- expect(function() {
- $injector.get('nameProvider');
- }).toThrow("Unknown provider: nameProviderProvider <- nameProvider");
- });
-
-
- it('should prevent provider configuration in app', function() {
- var $injector = createInjector([]);
- expect(function() {
- $injector.get('$provide').value('a', 'b');
- }).toThrow("Unknown provider: $provideProvider <- $provide");
- });
-
-
- it('should prevent instance lookup in module', function() {
- function instanceLookupInModule(name) { throw Error('FAIL'); }
- expect(function() {
- createInjector([function($provide) {
- $provide.value('name', 'angular')
- }, instanceLookupInModule]);
- }).toThrow('Unknown provider: name from ' + String(instanceLookupInModule));
- });
- });
-});