'use strict';

describe('NgModelController', function() {
  var ctrl, scope, ngModelAccessor, element, parentFormCtrl;

  beforeEach(inject(function($rootScope, $controller) {
    var attrs = {name: 'testAlias', ngModel: 'value'};

    parentFormCtrl = {
      $setValidity: jasmine.createSpy('$setValidity'),
      $setDirty: jasmine.createSpy('$setDirty')
    }

    element = jqLite('<form><input></form>');
    element.data('$formController', parentFormCtrl);

    scope = $rootScope;
    ngModelAccessor = jasmine.createSpy('ngModel accessor');
    ctrl = $controller(NgModelController, {
      $scope: scope, $element: element.find('input'), $attrs: attrs
    });
  }));


  afterEach(function() {
    dealoc(element);
  });


  it('should fail on non-assignable model binding', inject(function($controller) {
    var exception;

    try {
      $controller(NgModelController, {
        $scope: null,
        $element: jqLite('<input ng-model="1+2">'),
        $attrs: {
          ngModel: '1+2'
        }
      });
    } catch (e) {
      exception = e;
    }

    expect(exception.message).
        toMatch(/Non-assignable model expression: 1\+2 \(<input( value="")? ng-model="1\+2">\)/);
  }));


  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([]);

    expect(ctrl.$name).toBe('testAlias');
  });


  describe('setValidity', function() {

    it('should propagate invalid to the parent form only when valid', function() {
      expect(parentFormCtrl.$setValidity).not.toHaveBeenCalled();
      ctrl.$setValidity('ERROR', false);
      expect(parentFormCtrl.$setValidity).toHaveBeenCalledOnceWith('ERROR', false, ctrl);

      parentFormCtrl.$setValidity.reset();
      ctrl.$setValidity('ERROR', false);
      expect(parentFormCtrl.$setValidity).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).toBe(false);
    });


    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 $invalid', function() {
      ctrl.$setValidity('error', true);
      expect(parentFormCtrl.$setValidity).toHaveBeenCalledOnceWith('error', true, ctrl);
      parentFormCtrl.$setValidity.reset();

      ctrl.$setValidity('error', false);
      expect(parentFormCtrl.$setValidity).toHaveBeenCalledOnceWith('error', false, ctrl);
      parentFormCtrl.$setValidity.reset();
      ctrl.$setValidity('error', true);
      expect(parentFormCtrl.$setValidity).toHaveBeenCalledOnceWith('error', true, ctrl);
    });
  });


  describe('view -> model', function() {

    it('should set the value to $viewValue', function() {
      ctrl.$setViewValue('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.$setViewValue('init');
      expect(log).toEqual(['init', 'init-a']);
      expect(ctrl.$modelValue).toBe('init-a-b');
    });


    it('should fire viewChangeListeners when the value changes in the view (even if invalid)',
        function() {
      var spy = jasmine.createSpy('viewChangeListener');
      ctrl.$viewChangeListeners.push(spy);
      ctrl.$setViewValue('val');
      expect(spy).toHaveBeenCalledOnce();
      spy.reset();

      // invalid
      ctrl.$parsers.push(function() {return undefined;});
      ctrl.$setViewValue('val');
      expect(spy).toHaveBeenCalledOnce();
    });


    it('should reset the model when the view is invalid', function() {
      ctrl.$setViewValue('aaaa');
      expect(ctrl.$modelValue).toBe('aaaa');

      // add a validator that will make any input invalid
      ctrl.$parsers.push(function() {return undefined;});
      expect(ctrl.$modelValue).toBe('aaaa');
      ctrl.$setViewValue('bbbb');
      expect(ctrl.$modelValue).toBeUndefined();
    });


    it('should call parentForm.$setDirty only when pristine', function() {
      ctrl.$setViewValue('');
      expect(ctrl.$pristine).toBe(false);
      expect(ctrl.$dirty).toBe(true);
      expect(parentFormCtrl.$setDirty).toHaveBeenCalledOnce();

      parentFormCtrl.$setDirty.reset();
      ctrl.$setViewValue('');
      expect(ctrl.$pristine).toBe(false);
      expect(ctrl.$dirty).toBe(true);
      expect(parentFormCtrl.$setDirty).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 $render only if value changed', function() {
      spyOn(ctrl, '$render');

      scope.$apply(function() {
        scope.value = 3;
      });
      expect(ctrl.$render).toHaveBeenCalledOnce();
      ctrl.$render.reset();

      ctrl.$formatters.push(function() {return 3;});
      scope.$apply(function() {
        scope.value = 5;
      });
      expect(ctrl.$render).not.toHaveBeenCalled();
    });


    it('should clear the view even if invalid', function() {
      spyOn(ctrl, '$render');

      ctrl.$formatters.push(function() {return undefined;});
      scope.$apply(function() {
        scope.value = 5;
      });
      expect(ctrl.$render).toHaveBeenCalledOnce();
    });
  });
});

describe('ngModel', function() {

  it('should set css classes (ng-valid, ng-invalid, ng-pristine, ng-dirty)',
      inject(function($compile, $rootScope, $sniffer) {
    var element = $compile('<input type="email" ng-model="value" />')($rootScope);

    $rootScope.$digest();
    expect(element).toBeValid();
    expect(element).toBePristine();
    expect(element.hasClass('ng-valid-email')).toBe(true);
    expect(element.hasClass('ng-invalid-email')).toBe(false);

    $rootScope.$apply(function() {
      $rootScope.value = 'invalid-email';
    });
    expect(element).toBeInvalid();
    expect(element).toBePristine();
    expect(element.hasClass('ng-valid-email')).toBe(false);
    expect(element.hasClass('ng-invalid-email')).toBe(true);

    element.val('invalid-again');
    browserTrigger(element, ($sniffer.hasEvent('input')) ? 'input' : 'change');
    expect(element).toBeInvalid();
    expect(element).toBeDirty();
    expect(element.hasClass('ng-valid-email')).toBe(false);
    expect(element.hasClass('ng-invalid-email')).toBe(true);

    element.val('vojta@google.com');
    browserTrigger(element, $sniffer.hasEvent('input') ? 'input' : 'change');
    expect(element).toBeValid();
    expect(element).toBeDirty();
    expect(element.hasClass('ng-valid-email')).toBe(true);
    expect(element.hasClass('ng-invalid-email')).toBe(false);

    dealoc(element);
  }));


  it('should set invalid classes on init', inject(function($compile, $rootScope) {
    var element = $compile('<input type="email" ng-model="value" required />')($rootScope);
    $rootScope.$digest();

    expect(element).toBeInvalid();
    expect(element).toHaveClass('ng-invalid-required');
  }));
});


describe('input', function() {
  var formElm, inputElm, scope, $compile, changeInputValueTo;

  function compileInput(inputHtml) {
    inputElm = jqLite(inputHtml);
    formElm = jqLite('<form name="form"></form>');
    formElm.append(inputElm);
    $compile(formElm)(scope);
  }

  beforeEach(inject(function($injector, $sniffer) {
    $compile = $injector.get('$compile');
    scope = $injector.get('$rootScope');

    changeInputValueTo = function(value) {
      inputElm.val(value);
      browserTrigger(inputElm, $sniffer.hasEvent('input') ? 'input' : 'change');
    };
  }));

  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 not set readonly or disabled property on ie7', function() {
    this.addMatchers({
      toBeOff: function(attributeName) {
        var actualValue = this.actual.attr(attributeName);
        this.message = function() {
          return "Attribute '" + attributeName + "' expected to be off but was '" + actualValue +
            "' in: " + angular.mock.dump(this.actual);
        }

        return !actualValue || actualValue == 'false';
      }
    });

    compileInput('<input type="text" ng-model="name" name="alias"/>');
    expect(inputElm.prop('readOnly')).toBe(false);
    expect(inputElm.prop('disabled')).toBe(false);

    expect(inputElm).toBeOff('readOnly');
    expect(inputElm).toBeOff('readonly');
    expect(inputElm).toBeOff('disabled');
  });


  it('should cleanup it self from the parent form', function() {
    compileInput('<input ng-model="name" name="alias" required>');

    scope.$apply();
    expect(scope.form.$error.required.length).toBe(1);

    inputElm.remove();
    expect(scope.form.$error.required).toBe(false);
  });


  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 ngModel directive', function() {
    compileInput('<input type="text" name="whatever" required />');

    changeInputValueTo('');
    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 reset the model if view is 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).toBeUndefined();
      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();
      });

      it('should register required on non boolean elements', function() {
        compileInput('<div ng-model="value" name="alias" required>');

        scope.$apply(function() {
          scope.value = '';
        });

        expect(inputElm).toBeInvalid();
        expect(scope.form.alias.$error.required).toBeTruthy();
      });
    });
  });

  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).toBe(false);

      changeInputValueTo('invalid@');
      expect(scope.email).toBeUndefined();
      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).toBe(false);

      changeInputValueTo('invalid.com');
      expect(scope.url).toBeUndefined();
      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], 'click');
      expect(scope.color).toBe('blue');
    });


    it('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}}" />');

      scope.$apply(function() {
        scope.value = 'blue';
        scope.some = 'blue';
        scope.other = 'red';
      });

      expect(inputElm[0].checked).toBe(true);
      expect(inputElm[1].checked).toBe(false);

      browserTrigger(inputElm[1], 'click');
      expect(scope.value).toBe('red');

      scope.$apply(function() {
        scope.other = 'non-red';
      });

      expect(inputElm[0].checked).toBe(false);
      expect(inputElm[1].checked).toBe(false);
    });
  });


  describe('checkbox', function() {

    it('should ignore checkbox without ngModel directive', function() {
      compileInput('<input type="checkbox" name="whatever" required />');

      changeInputValueTo('');
      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');
    });


    it('should be required if false', function() {
      compileInput('<input type="checkbox" ng:model="value" required />');

      browserTrigger(inputElm, 'click');
      expect(inputElm[0].checked).toBe(true);
      expect(inputElm).toBeValid();

      browserTrigger(inputElm, 'click');
      expect(inputElm[0].checked).toBe(false);
      expect(inputElm).toBeInvalid();
    });
  });


  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 ngModel directive', function() {
      compileInput('<textarea name="whatever" required></textarea>');
      inputElm = formElm.find('textarea');

      changeInputValueTo('');
      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('ngList', 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([]);
    });


    it('should allow custom separator', function() {
      compileInput('<input type="text" ng-model="list" ng-list=":" />');

      changeInputValueTo('a,a');
      expect(scope.list).toEqual(['a,a']);

      changeInputValueTo('a:b');
      expect(scope.list).toEqual(['a', 'b']);
    });


    it('should allow regexp as a separator', function() {
      compileInput('<input type="text" ng-model="list" ng-list="/:|,/" />');

      changeInputValueTo('a,b');
      expect(scope.list).toEqual(['a', 'b']);

      changeInputValueTo('a,b: c');
      expect(scope.list).toEqual(['a', 'b', 'c']);
    });
  });

  describe('required', function() {

    it('should allow bindings via ngRequired', function() {
      compileInput('<input type="text" ng-model="value" ng-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('ngChange', 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 ngChange 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('ngValue', function() {

    it('should evaluate and set constant expressions', function() {
      compileInput('<input type="radio" ng-model="selected" ng-value="true">' +
                   '<input type="radio" ng-model="selected" ng-value="false">' +
                   '<input type="radio" ng-model="selected" ng-value="1">');
      scope.$digest();

      browserTrigger(inputElm[0], 'click');
      expect(scope.selected).toBe(true);

      browserTrigger(inputElm[1], 'click');
      expect(scope.selected).toBe(false);

      browserTrigger(inputElm[2], 'click');
      expect(scope.selected).toBe(1);
    });


    it('should watch the expression', function() {
      compileInput('<input type="radio" ng-model="selected" ng-value="value">');

      scope.$apply(function() {
        scope.selected = scope.value = {some: 'object'};
      });
      expect(inputElm[0].checked).toBe(true);

      scope.$apply(function() {
        scope.value = {some: 'other'};
      });
      expect(inputElm[0].checked).toBe(false);

      browserTrigger(inputElm, 'click');
      expect(scope.selected).toBe(scope.value);
    });


    it('should work inside ngRepeat', function() {
      compileInput(
        '<input type="radio" ng-repeat="i in items" ng-model="$parent.selected" ng-value="i.id">');

      scope.$apply(function() {
        scope.items = [{id: 1}, {id: 2}];
        scope.selected = 1;
      });

      inputElm = formElm.find('input');
      expect(inputElm[0].checked).toBe(true);
      expect(inputElm[1].checked).toBe(false);

      browserTrigger(inputElm.eq(1), 'click');
      expect(scope.selected).toBe(2);
    });


    it('should work inside ngRepeat with primitive values', function() {
      compileInput(
        '<div ng-repeat="i in items">' +
          '<input type="radio" name="sel_{{i.id}}" ng-model="i.selected" ng-value="true">' +
          '<input type="radio" name="sel_{{i.id}}" ng-model="i.selected" ng-value="false">' +
        '</div>');

      scope.$apply(function() {
        scope.items = [{id: 1, selected: true}, {id: 2, selected: false}];
      });

      inputElm = formElm.find('input');
      expect(inputElm[0].checked).toBe(true);
      expect(inputElm[1].checked).toBe(false);
      expect(inputElm[2].checked).toBe(false);
      expect(inputElm[3].checked).toBe(true);

      browserTrigger(inputElm.eq(1), 'click');
      expect(scope.items[0].selected).toBe(false);
    });


    it('should work inside ngRepeat without name attribute', function() {
      compileInput(
        '<div ng-repeat="i in items">' +
          '<input type="radio" ng-model="i.selected" ng-value="true">' +
          '<input type="radio" ng-model="i.selected" ng-value="false">' +
        '</div>');

      scope.$apply(function() {
        scope.items = [{id: 1, selected: true}, {id: 2, selected: false}];
      });

      inputElm = formElm.find('input');
      expect(inputElm[0].checked).toBe(true);
      expect(inputElm[1].checked).toBe(false);
      expect(inputElm[2].checked).toBe(false);
      expect(inputElm[3].checked).toBe(true);

      browserTrigger(inputElm.eq(1), 'click');
      expect(scope.items[0].selected).toBe(false);
    });
  });
});
