chore(directives,widgets): reorg the code under directive/ dir

1 files changed, 961 insertions, 0 deletions

diff --git a/test/directive/inputSpec.js b/test/directive/inputSpec.js
new file mode 100644
index 00000000..d9f6b7b3
--- /dev/null
+++ b/test/directive/inputSpec.js
@@ -0,0 +1,961 @@
+'use strict';
+
+describe('NgModelController', function() {
+  var ctrl, scope, ngModelAccessor;
+
+  beforeEach(inject(function($rootScope, $controller) {
+    scope = $rootScope;
+    ngModelAccessor = jasmine.createSpy('ngModel accessor');
+    ctrl = $controller(NgModelController, {$scope: scope, ngModel: ngModelAccessor});
+
+    // mock accessor (locals)
+    ngModelAccessor.andCallFake(function(val) {
+      if (isDefined(val)) scope.value = val;
+      return scope.value;
+    });
+  }));
+
+
+  it('should init the properties', function() {
+    expect(ctrl.dirty).toBe(false);
+    expect(ctrl.pristine).toBe(true);
+    expect(ctrl.valid).toBe(true);
+    expect(ctrl.invalid).toBe(false);
+
+    expect(ctrl.viewValue).toBeDefined();
+    expect(ctrl.modelValue).toBeDefined();
+
+    expect(ctrl.formatters).toEqual([]);
+    expect(ctrl.parsers).toEqual([]);
+  });
+
+
+  describe('touch', function() {
+    it('should only fire $viewTouch when pristine', function() {
+      var spy = jasmine.createSpy('$viewTouch');
+      scope.$on('$viewTouch', spy);
+
+      ctrl.touch();
+      expect(ctrl.pristine).toBe(false);
+      expect(ctrl.dirty).toBe(true);
+      expect(spy).toHaveBeenCalledOnce();
+
+      spy.reset();
+      ctrl.touch();
+      expect(ctrl.pristine).toBe(false);
+      expect(ctrl.dirty).toBe(true);
+      expect(spy).not.toHaveBeenCalled();
+    });
+  });
+
+
+  describe('setValidity', function() {
+
+    it('should emit $invalid only when $valid', function() {
+      var spy = jasmine.createSpy('$invalid');
+      scope.$on('$invalid', spy);
+
+      ctrl.setValidity('ERROR', false);
+      expect(spy).toHaveBeenCalledOnce();
+
+      spy.reset();
+      ctrl.setValidity('ERROR', false);
+      expect(spy).not.toHaveBeenCalled();
+    });
+
+
+    it('should set and unset the error', function() {
+      ctrl.setValidity('REQUIRED', false);
+      expect(ctrl.error.REQUIRED).toBe(true);
+
+      ctrl.setValidity('REQUIRED', true);
+      expect(ctrl.error.REQUIRED).toBeUndefined();
+    });
+
+
+    it('should set valid/invalid', function() {
+      ctrl.setValidity('FIRST', false);
+      expect(ctrl.valid).toBe(false);
+      expect(ctrl.invalid).toBe(true);
+
+      ctrl.setValidity('SECOND', false);
+      expect(ctrl.valid).toBe(false);
+      expect(ctrl.invalid).toBe(true);
+
+      ctrl.setValidity('SECOND', true);
+      expect(ctrl.valid).toBe(false);
+      expect(ctrl.invalid).toBe(true);
+
+      ctrl.setValidity('FIRST', true);
+      expect(ctrl.valid).toBe(true);
+      expect(ctrl.invalid).toBe(false);
+    });
+
+
+    it('should emit $valid only when $invalid', function() {
+      var spy = jasmine.createSpy('$valid');
+      scope.$on('$valid', spy);
+
+      ctrl.setValidity('ERROR', true);
+      expect(spy).not.toHaveBeenCalled();
+
+      ctrl.setValidity('ERROR', false);
+      ctrl.setValidity('ERROR', true);
+      expect(spy).toHaveBeenCalledOnce();
+    });
+  });
+
+
+  describe('view -> model', function() {
+
+    it('should set the value to $viewValue', function() {
+      ctrl.read('some-val');
+      expect(ctrl.viewValue).toBe('some-val');
+    });
+
+
+    it('should pipeline all registered parsers and set result to $modelValue', function() {
+      var log = [];
+
+      ctrl.parsers.push(function(value) {
+        log.push(value);
+        return value + '-a';
+      });
+
+      ctrl.parsers.push(function(value) {
+        log.push(value);
+        return value + '-b';
+      });
+
+      ctrl.read('init');
+      expect(log).toEqual(['init', 'init-a']);
+      expect(ctrl.modelValue).toBe('init-a-b');
+    });
+
+
+    it('should fire $viewChange only if value changed and is valid', function() {
+      var spy = jasmine.createSpy('$viewChange');
+      scope.$on('$viewChange', spy);
+
+      ctrl.read('val');
+      expect(spy).toHaveBeenCalledOnce();
+      spy.reset();
+
+      // invalid
+      ctrl.parsers.push(function() {return undefined;});
+      ctrl.read('val');
+      expect(spy).not.toHaveBeenCalled();
+    });
+  });
+
+
+  describe('model -> view', function() {
+
+    it('should set the value to $modelValue', function() {
+      scope.$apply(function() {
+        scope.value = 10;
+      });
+      expect(ctrl.modelValue).toBe(10);
+    });
+
+
+    it('should pipeline all registered formatters in reversed order and set result to $viewValue',
+        function() {
+      var log = [];
+
+      ctrl.formatters.unshift(function(value) {
+        log.push(value);
+        return value + 2;
+      });
+
+      ctrl.formatters.unshift(function(value) {
+        log.push(value);
+        return value + '';
+      });
+
+      scope.$apply(function() {
+        scope.value = 3;
+      });
+      expect(log).toEqual([3, 5]);
+      expect(ctrl.viewValue).toBe('5');
+    });
+
+
+    it('should $render only if value changed and is valid', function() {
+      spyOn(ctrl, 'render');
+
+      scope.$apply(function() {
+        scope.value= 3;
+      });
+      expect(ctrl.render).toHaveBeenCalledOnce();
+      ctrl.render.reset();
+
+      // invalid
+      ctrl.formatters.push(function() {return undefined;});
+      scope.$apply(function() {
+        scope.value= 5;
+      });
+      expect(ctrl.render).not.toHaveBeenCalled();
+    });
+  });
+});
+
+describe('ng:model', function() {
+
+  it('should set css classes (ng-valid, ng-invalid, ng-pristine, ng-dirty)',
+      inject(function($compile, $rootScope) {
+    var element = $compile('<input type="email" ng:model="value" />')($rootScope);
+
+    $rootScope.$digest();
+    expect(element).toBeValid();
+    expect(element).toBePristine();
+
+    $rootScope.$apply(function() {
+      $rootScope.value = 'invalid-email';
+    });
+    expect(element).toBeInvalid();
+    expect(element).toBePristine();
+
+    element.val('invalid-again');
+    browserTrigger(element, 'blur');
+    expect(element).toBeInvalid();
+    expect(element).toBeDirty();
+
+    element.val('vojta@google.com');
+    browserTrigger(element, 'blur');
+    expect(element).toBeValid();
+    expect(element).toBeDirty();
+
+    dealoc(element);
+  }));
+});
+
+
+describe('input', function() {
+  var formElm, inputElm, scope, $compile;
+
+  function compileInput(inputHtml) {
+    formElm = jqLite('<form name="form">' + inputHtml + '</form>');
+    inputElm = formElm.find('input');
+    $compile(formElm)(scope);
+  }
+
+  function changeInputValueTo(value) {
+    inputElm.val(value);
+    browserTrigger(inputElm, 'blur');
+  }
+
+  beforeEach(inject(function($injector) {
+    $compile = $injector.get('$compile');
+    scope = $injector.get('$rootScope');
+  }));
+
+  afterEach(function() {
+    dealoc(formElm);
+  });
+
+
+  it('should bind to a model', function() {
+    compileInput('<input type="text" ng:model="name" name="alias" ng:change="change()" />');
+
+    scope.$apply(function() {
+      scope.name = 'misko';
+    });
+
+    expect(inputElm.val()).toBe('misko');
+  });
+
+
+  it('should call $destroy on element remove', function() {
+    compileInput('<input type="text" ng:model="name" name="alias" ng:change="change()" />');
+
+    var spy = jasmine.createSpy('on destroy');
+    scope.$on('$destroy', spy);
+
+    inputElm.remove();
+    expect(spy).toHaveBeenCalled();
+  });
+
+
+  it('should update the model on "blur" event', function() {
+    compileInput('<input type="text" ng:model="name" name="alias" ng:change="change()" />');
+
+    changeInputValueTo('adam');
+    expect(scope.name).toEqual('adam');
+  });
+
+
+  it('should update the model and trim the value', function() {
+    compileInput('<input type="text" ng:model="name" name="alias" ng:change="change()" />');
+
+    changeInputValueTo('  a  ');
+    expect(scope.name).toEqual('a');
+  });
+
+
+  it('should allow complex reference binding', function() {
+    compileInput('<input type="text" ng:model="obj[\'abc\'].name"/>');
+
+    scope.$apply(function() {
+      scope.obj = { abc: { name: 'Misko'} };
+    });
+    expect(inputElm.val()).toEqual('Misko');
+  });
+
+
+  it('should ignore input without ng:model attr', function() {
+    compileInput('<input type="text" name="whatever" required />');
+
+    browserTrigger(inputElm, 'blur');
+    expect(inputElm.hasClass('ng-valid')).toBe(false);
+    expect(inputElm.hasClass('ng-invalid')).toBe(false);
+    expect(inputElm.hasClass('ng-pristine')).toBe(false);
+    expect(inputElm.hasClass('ng-dirty')).toBe(false);
+  });
+
+
+  it('should report error on assignment error', function() {
+    expect(function() {
+      compileInput('<input type="text" ng:model="throw \'\'">');
+      scope.$digest();
+    }).toThrow("Syntax Error: Token '''' is an unexpected token at column 7 of the expression [throw ''] starting at [''].");
+  });
+
+
+  it("should render as blank if null", function() {
+    compileInput('<input type="text" ng:model="age" />');
+
+    scope.$apply(function() {
+      scope.age = null;
+    });
+
+    expect(scope.age).toBeNull();
+    expect(inputElm.val()).toEqual('');
+  });
+
+
+  it('should render 0 even if it is a number', function() {
+    compileInput('<input type="text" ng:model="value" />');
+    scope.$apply(function() {
+      scope.value = 0;
+    });
+
+    expect(inputElm.val()).toBe('0');
+  });
+
+
+  describe('pattern', function() {
+
+    it('should validate in-lined pattern', function() {
+      compileInput('<input type="text" ng:model="value" ng:pattern="/^\\d\\d\\d-\\d\\d-\\d\\d\\d\\d$/" />');
+      scope.$digest();
+
+      changeInputValueTo('x000-00-0000x');
+      expect(inputElm).toBeInvalid();
+
+      changeInputValueTo('000-00-0000');
+      expect(inputElm).toBeValid();
+
+      changeInputValueTo('000-00-0000x');
+      expect(inputElm).toBeInvalid();
+
+      changeInputValueTo('123-45-6789');
+      expect(inputElm).toBeValid();
+
+      changeInputValueTo('x');
+      expect(inputElm).toBeInvalid();
+    });
+
+
+    it('should validate pattern from scope', function() {
+      compileInput('<input type="text" ng:model="value" ng:pattern="regexp" />');
+      scope.regexp = /^\d\d\d-\d\d-\d\d\d\d$/;
+      scope.$digest();
+
+      changeInputValueTo('x000-00-0000x');
+      expect(inputElm).toBeInvalid();
+
+      changeInputValueTo('000-00-0000');
+      expect(inputElm).toBeValid();
+
+      changeInputValueTo('000-00-0000x');
+      expect(inputElm).toBeInvalid();
+
+      changeInputValueTo('123-45-6789');
+      expect(inputElm).toBeValid();
+
+      changeInputValueTo('x');
+      expect(inputElm).toBeInvalid();
+
+      scope.regexp = /abc?/;
+
+      changeInputValueTo('ab');
+      expect(inputElm).toBeValid();
+
+      changeInputValueTo('xx');
+      expect(inputElm).toBeInvalid();
+    });
+
+
+    xit('should throw an error when scope pattern can\'t be found', function() {
+      compileInput('<input type="text" ng:model="foo" ng:pattern="fooRegexp" />');
+
+      expect(function() { changeInputValueTo('xx'); }).
+          toThrow('Expected fooRegexp to be a RegExp but was undefined');
+    });
+  });
+
+
+  describe('minlength', function() {
+
+    it('should invalid shorter than given minlenght', function() {
+      compileInput('<input type="text" ng:model="value" ng:minlength="3" />');
+
+      changeInputValueTo('aa');
+      expect(scope.value).toBeUndefined();
+
+      changeInputValueTo('aaa');
+      expect(scope.value).toBe('aaa');
+    });
+  });
+
+
+  describe('maxlength', function() {
+
+    it('should invalid shorter than given maxlenght', function() {
+      compileInput('<input type="text" ng:model="value" ng:maxlength="5" />');
+
+      changeInputValueTo('aaaaaaaa');
+      expect(scope.value).toBeUndefined();
+
+      changeInputValueTo('aaa');
+      expect(scope.value).toBe('aaa');
+    });
+  });
+
+
+  // INPUT TYPES
+
+  describe('number', function() {
+
+    it('should not update model if view invalid', function() {
+      compileInput('<input type="number" ng:model="age"/>');
+
+      scope.$apply(function() {
+        scope.age = 123;
+      });
+      expect(inputElm.val()).toBe('123');
+
+      try {
+        // to allow non-number values, we have to change type so that
+        // the browser which have number validation will not interfere with
+        // this test. IE8 won't allow it hence the catch.
+        inputElm[0].setAttribute('type', 'text');
+      } catch (e) {}
+
+      changeInputValueTo('123X');
+      expect(inputElm.val()).toBe('123X');
+      expect(scope.age).toBe(123);
+      expect(inputElm).toBeInvalid();
+    });
+
+
+    it('should render as blank if null', function() {
+      compileInput('<input type="number" ng:model="age" />');
+
+      scope.$apply(function() {
+        scope.age = null;
+      });
+
+      expect(scope.age).toBeNull();
+      expect(inputElm.val()).toEqual('');
+    });
+
+
+    it('should come up blank when no value specified', function() {
+      compileInput('<input type="number" ng:model="age" />');
+
+      scope.$digest();
+      expect(inputElm.val()).toBe('');
+
+      scope.$apply(function() {
+        scope.age = null;
+      });
+
+      expect(scope.age).toBeNull();
+      expect(inputElm.val()).toBe('');
+    });
+
+
+    it('should parse empty string to null', function() {
+      compileInput('<input type="number" ng:model="age" />');
+
+      scope.$apply(function() {
+        scope.age = 10;
+      });
+
+      changeInputValueTo('');
+      expect(scope.age).toBeNull();
+      expect(inputElm).toBeValid();
+    });
+
+
+    describe('min', function() {
+
+      it('should validate', function() {
+        compileInput('<input type="number" ng:model="value" name="alias" min="10" />');
+        scope.$digest();
+
+        changeInputValueTo('1');
+        expect(inputElm).toBeInvalid();
+        expect(scope.value).toBeFalsy();
+        expect(scope.form.alias.error.MIN).toBeTruthy();
+
+        changeInputValueTo('100');
+        expect(inputElm).toBeValid();
+        expect(scope.value).toBe(100);
+        expect(scope.form.alias.error.MIN).toBeFalsy();
+      });
+    });
+
+
+    describe('max', function() {
+
+      it('should validate', function() {
+        compileInput('<input type="number" ng:model="value" name="alias" max="10" />');
+        scope.$digest();
+
+        changeInputValueTo('20');
+        expect(inputElm).toBeInvalid();
+        expect(scope.value).toBeFalsy();
+        expect(scope.form.alias.error.MAX).toBeTruthy();
+
+        changeInputValueTo('0');
+        expect(inputElm).toBeValid();
+        expect(scope.value).toBe(0);
+        expect(scope.form.alias.error.MAX).toBeFalsy();
+      });
+    });
+
+
+    describe('required', function() {
+
+      it('should be valid even if value is 0', function() {
+        compileInput('<input type="number" ng:model="value" name="alias" required />');
+
+        changeInputValueTo('0');
+        expect(inputElm).toBeValid();
+        expect(scope.value).toBe(0);
+        expect(scope.form.alias.error.REQUIRED).toBeFalsy();
+      });
+
+      it('should be valid even if value 0 is set from model', function() {
+        compileInput('<input type="number" ng:model="value" name="alias" required />');
+
+        scope.$apply(function() {
+          scope.value = 0;
+        });
+
+        expect(inputElm).toBeValid();
+        expect(inputElm.val()).toBe('0')
+        expect(scope.form.alias.error.REQUIRED).toBeFalsy();
+      });
+    });
+  });
+
+  describe('email', function() {
+
+    it('should validate e-mail', function() {
+      compileInput('<input type="email" ng:model="email" name="alias" />');
+
+      var widget = scope.form.alias;
+      changeInputValueTo('vojta@google.com');
+
+      expect(scope.email).toBe('vojta@google.com');
+      expect(inputElm).toBeValid();
+      expect(widget.error.EMAIL).toBeUndefined();
+
+      changeInputValueTo('invalid@');
+      expect(scope.email).toBe('vojta@google.com');
+      expect(inputElm).toBeInvalid();
+      expect(widget.error.EMAIL).toBeTruthy();
+    });
+
+
+    describe('EMAIL_REGEXP', function() {
+
+      it('should validate email', function() {
+        expect(EMAIL_REGEXP.test('a@b.com')).toBe(true);
+        expect(EMAIL_REGEXP.test('a@B.c')).toBe(false);
+      });
+    });
+  });
+
+
+  describe('url', function() {
+
+    it('should validate url', function() {
+      compileInput('<input type="url" ng:model="url" name="alias" />');
+      var widget = scope.form.alias;
+
+      changeInputValueTo('http://www.something.com');
+      expect(scope.url).toBe('http://www.something.com');
+      expect(inputElm).toBeValid();
+      expect(widget.error.URL).toBeUndefined();
+
+      changeInputValueTo('invalid.com');
+      expect(scope.url).toBe('http://www.something.com');
+      expect(inputElm).toBeInvalid();
+      expect(widget.error.URL).toBeTruthy();
+    });
+
+
+    describe('URL_REGEXP', function() {
+
+      it('should validate url', function() {
+        expect(URL_REGEXP.test('http://server:123/path')).toBe(true);
+        expect(URL_REGEXP.test('a@B.c')).toBe(false);
+      });
+    });
+  });
+
+
+  describe('radio', function() {
+
+    it('should update the model', function() {
+      compileInput(
+          '<input type="radio" ng:model="color" value="white" />' +
+          '<input type="radio" ng:model="color" value="red" />' +
+          '<input type="radio" ng:model="color" value="blue" />');
+
+      scope.$apply(function() {
+        scope.color = 'white';
+      });
+      expect(inputElm[0].checked).toBe(true);
+      expect(inputElm[1].checked).toBe(false);
+      expect(inputElm[2].checked).toBe(false);
+
+      scope.$apply(function() {
+        scope.color = 'red';
+      });
+      expect(inputElm[0].checked).toBe(false);
+      expect(inputElm[1].checked).toBe(true);
+      expect(inputElm[2].checked).toBe(false);
+
+      browserTrigger(inputElm[2]);
+      expect(scope.color).toBe('blue');
+    });
+
+
+    // TODO(vojta): change interpolate ?
+    xit('should allow {{expr}} as value', function() {
+      scope.some = 11;
+      compileInput(
+          '<input type="radio" ng:model="value" value="{{some}}" />' +
+          '<input type="radio" ng:model="value" value="{{other}}" />');
+
+      browserTrigger(inputElm[0]);
+      expect(scope.value).toBe(true);
+
+      browserTrigger(inputElm[1]);
+      expect(scope.value).toBe(false);
+    });
+  });
+
+
+  describe('checkbox', function() {
+
+    it('should ignore checkbox without ng:model attr', function() {
+      compileInput('<input type="checkbox" name="whatever" required />');
+
+      browserTrigger(inputElm, 'blur');
+      expect(inputElm.hasClass('ng-valid')).toBe(false);
+      expect(inputElm.hasClass('ng-invalid')).toBe(false);
+      expect(inputElm.hasClass('ng-pristine')).toBe(false);
+      expect(inputElm.hasClass('ng-dirty')).toBe(false);
+    });
+
+
+    it('should format booleans', function() {
+      compileInput('<input type="checkbox" ng:model="name" />');
+
+      scope.$apply(function() {
+        scope.name = false;
+      });
+      expect(inputElm[0].checked).toBe(false);
+
+      scope.$apply(function() {
+        scope.name = true;
+      });
+      expect(inputElm[0].checked).toBe(true);
+    });
+
+
+    it('should support type="checkbox" with non-standard capitalization', function() {
+      compileInput('<input type="checkBox" ng:model="checkbox" />');
+
+      browserTrigger(inputElm, 'click');
+      expect(scope.checkbox).toBe(true);
+
+      browserTrigger(inputElm, 'click');
+      expect(scope.checkbox).toBe(false);
+    });
+
+
+    it('should allow custom enumeration', function() {
+      compileInput('<input type="checkbox" ng:model="name" ng:true-value="y" ' +
+          'ng:false-value="n">');
+
+      scope.$apply(function() {
+        scope.name = 'y';
+      });
+      expect(inputElm[0].checked).toBe(true);
+
+      scope.$apply(function() {
+        scope.name = 'n';
+      });
+      expect(inputElm[0].checked).toBe(false);
+
+      scope.$apply(function() {
+        scope.name = 'something else';
+      });
+      expect(inputElm[0].checked).toBe(false);
+
+      browserTrigger(inputElm, 'click');
+      expect(scope.name).toEqual('y');
+
+      browserTrigger(inputElm, 'click');
+      expect(scope.name).toEqual('n');
+    });
+  });
+
+
+  describe('textarea', function() {
+
+    it("should process textarea", function() {
+      compileInput('<textarea ng:model="name"></textarea>');
+      inputElm = formElm.find('textarea');
+
+      scope.$apply(function() {
+        scope.name = 'Adam';
+      });
+      expect(inputElm.val()).toEqual('Adam');
+
+      changeInputValueTo('Shyam');
+      expect(scope.name).toEqual('Shyam');
+
+      changeInputValueTo('Kai');
+      expect(scope.name).toEqual('Kai');
+    });
+
+
+    it('should ignore textarea without ng:model attr', function() {
+      compileInput('<textarea name="whatever" required></textarea>');
+      inputElm = formElm.find('textarea');
+
+      browserTrigger(inputElm, 'blur');
+      expect(inputElm.hasClass('ng-valid')).toBe(false);
+      expect(inputElm.hasClass('ng-invalid')).toBe(false);
+      expect(inputElm.hasClass('ng-pristine')).toBe(false);
+      expect(inputElm.hasClass('ng-dirty')).toBe(false);
+    });
+  });
+
+
+  describe('ng:list', function() {
+
+    it('should parse text into an array', function() {
+      compileInput('<input type="text" ng:model="list" ng:list />');
+
+      // model -> view
+      scope.$apply(function() {
+        scope.list = ['x', 'y', 'z'];
+      });
+      expect(inputElm.val()).toBe('x, y, z');
+
+      // view -> model
+      changeInputValueTo('1, 2, 3');
+      expect(scope.list).toEqual(['1', '2', '3']);
+    });
+
+
+    it("should not clobber text if model changes due to itself", function() {
+      // When the user types 'a,b' the 'a,' stage parses to ['a'] but if the
+      // $parseModel function runs it will change to 'a', in essence preventing
+      // the user from ever typying ','.
+      compileInput('<input type="text" ng:model="list" ng:list />');
+
+      changeInputValueTo('a ');
+      expect(inputElm.val()).toEqual('a ');
+      expect(scope.list).toEqual(['a']);
+
+      changeInputValueTo('a ,');
+      expect(inputElm.val()).toEqual('a ,');
+      expect(scope.list).toEqual(['a']);
+
+      changeInputValueTo('a , ');
+      expect(inputElm.val()).toEqual('a , ');
+      expect(scope.list).toEqual(['a']);
+
+      changeInputValueTo('a , b');
+      expect(inputElm.val()).toEqual('a , b');
+      expect(scope.list).toEqual(['a', 'b']);
+    });
+
+
+    xit('should require at least one item', function() {
+      compileInput('<input type="text" ng:model="list" ng:list required />');
+
+      changeInputValueTo(' , ');
+      expect(inputElm).toBeInvalid();
+    });
+
+
+    it('should convert empty string to an empty array', function() {
+      compileInput('<input type="text" ng:model="list" ng:list />');
+
+      changeInputValueTo('');
+      expect(scope.list).toEqual([]);
+    });
+  });
+
+  describe('required', function() {
+
+    it('should allow bindings on required', function() {
+      compileInput('<input type="text" ng:model="value" required="{{required}}" />');
+
+      scope.$apply(function() {
+        scope.required = false;
+      });
+
+      changeInputValueTo('');
+      expect(inputElm).toBeValid();
+
+
+      scope.$apply(function() {
+        scope.required = true;
+      });
+      expect(inputElm).toBeInvalid();
+
+      scope.$apply(function() {
+        scope.value = 'some';
+      });
+      expect(inputElm).toBeValid();
+
+      changeInputValueTo('');
+      expect(inputElm).toBeInvalid();
+
+      scope.$apply(function() {
+        scope.required = false;
+      });
+      expect(inputElm).toBeValid();
+    });
+
+
+    it('should invalid initial value with bound required', function() {
+      compileInput('<input type="text" ng:model="value" required="{{required}}" />');
+
+      scope.$apply(function() {
+        scope.required = true;
+      });
+
+      expect(inputElm).toBeInvalid();
+    });
+
+
+    it('should be $invalid but $pristine if not touched', function() {
+      compileInput('<input type="text" ng:model="name" name="alias" required />');
+
+      scope.$apply(function() {
+        scope.name = '';
+      });
+
+      expect(inputElm).toBeInvalid();
+      expect(inputElm).toBePristine();
+
+      changeInputValueTo('');
+      expect(inputElm).toBeInvalid();
+      expect(inputElm).toBeDirty();
+    });
+
+
+    it('should allow empty string if not required', function() {
+      compileInput('<input type="text" ng:model="foo" />');
+      changeInputValueTo('a');
+      changeInputValueTo('');
+      expect(scope.foo).toBe('');
+    });
+
+
+    it('should set $invalid when model undefined', function() {
+      compileInput('<input type="text" ng:model="notDefiend" required />');
+      scope.$digest();
+      expect(inputElm).toBeInvalid();
+    })
+  });
+
+
+  describe('ng:change', function() {
+
+    it('should $eval expression after new value is set in the model', function() {
+      compileInput('<input type="text" ng:model="value" ng:change="change()" />');
+
+      scope.change = jasmine.createSpy('change').andCallFake(function() {
+        expect(scope.value).toBe('new value');
+      });
+
+      changeInputValueTo('new value');
+      expect(scope.change).toHaveBeenCalledOnce();
+    });
+
+    it('should not $eval the expression if changed from model', function() {
+      compileInput('<input type="text" ng:model="value" ng:change="change()" />');
+
+      scope.change = jasmine.createSpy('change');
+      scope.$apply(function() {
+        scope.value = true;
+      });
+
+      expect(scope.change).not.toHaveBeenCalled();
+    });
+
+
+    it('should $eval ng:change expression on checkbox', function() {
+      compileInput('<input type="checkbox" ng:model="foo" ng:change="changeFn()">');
+
+      scope.changeFn = jasmine.createSpy('changeFn');
+      scope.$digest();
+      expect(scope.changeFn).not.toHaveBeenCalled();
+
+      browserTrigger(inputElm, 'click');
+      expect(scope.changeFn).toHaveBeenCalledOnce();
+    });
+  });
+
+
+  describe('ng:model-instant', function() {
+
+    it('should bind keydown, change, input events', inject(function($browser) {
+      compileInput('<input type="text" ng:model="value" ng:model-instant />');
+
+      inputElm.val('value1');
+      browserTrigger(inputElm, 'keydown');
+
+      // should be async (because of keydown)
+      expect(scope.value).toBeUndefined();
+
+      $browser.defer.flush();
+      expect(scope.value).toBe('value1');
+
+      inputElm.val('value2');
+      browserTrigger(inputElm, 'change');
+      expect(scope.value).toBe('value2');
+
+      if (msie < 9) return;
+
+      inputElm.val('value3');
+      browserTrigger(inputElm, 'input');
+      expect(scope.value).toBe('value3');
+    }));
+  });
+});