angular.js/test/ng/directive/ngEventDirsSpec.js

'use strict';

describe('event directives', function() {
  var element;


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


  describe('ngSubmit', function() {

    it('should get called on form submit', inject(function($rootScope, $compile) {
      element = $compile('<form action="/foo" ng-submit="submitted = true">' +
        '<input type="submit"/>' +
        '</form>')($rootScope);
      $rootScope.$digest();

      // prevent submit within the test harness
      element.on('submit', function(e) { e.preventDefault(); });

      expect($rootScope.submitted).not.toBeDefined();

      browserTrigger(element.children()[0]);
      expect($rootScope.submitted).toEqual(true);
    }));

    it('should expose event on form submit', inject(function($rootScope, $compile) {
      $rootScope.formSubmission = function(e) {
        if (e) {
          $rootScope.formSubmitted = 'foo';
        }
      };

      element = $compile('<form action="/foo" ng-submit="formSubmission($event)">' +
        '<input type="submit"/>' +
        '</form>')($rootScope);
      $rootScope.$digest();

      // prevent submit within the test harness
      element.on('submit', function(e) { e.preventDefault(); });

      expect($rootScope.formSubmitted).not.toBeDefined();

      browserTrigger(element.children()[0]);
      expect($rootScope.formSubmitted).toEqual('foo');
    }));
  });

  describe('focus', function() {

    describe('call the listener asynchronously during $apply', function() {
      function run(scope) {
        inject(function($compile) {
          element = $compile('<input type="text" ng-focus="focus()">')(scope);
          scope.focus = jasmine.createSpy('focus');

          scope.$apply(function() {
            element.triggerHandler('focus');
            expect(scope.focus).not.toHaveBeenCalled();
          });

          expect(scope.focus).toHaveBeenCalledOnce();
        });
      }

      it('should call the listener with non isolate scopes', inject(function($rootScope) {
        run($rootScope.$new());
      }));

      it('should call the listener with isolate scopes', inject(function($rootScope) {
        run($rootScope.$new(true));
      }));

    });

    it('should call the listener synchronously inside of $apply if outside of $apply',
        inject(function($rootScope, $compile) {
      element = $compile('<input type="text" ng-focus="focus()" ng-model="value">')($rootScope);
      $rootScope.focus = jasmine.createSpy('focus').andCallFake(function() {
        $rootScope.value = 'newValue';
      });

      element.triggerHandler('focus');

      expect($rootScope.focus).toHaveBeenCalledOnce();
      expect(element.val()).toBe('newValue');
    }));

  });

  describe('security', function() {
    it('should allow access to the $event object', inject(function($rootScope, $compile) {
      var scope = $rootScope.$new();
      element = $compile('<button ng-click="e = $event">BTN</button>')(scope);
      element.triggerHandler('click');
      expect(scope.e.target).toBe(element[0]);
    }));

    it('should block access to DOM nodes (e.g. exposed via $event)', inject(function($rootScope, $compile) {
      var scope = $rootScope.$new();
      element = $compile('<button ng-click="e = $event.target">BTN</button>')(scope);
      expect(function() {
        element.triggerHandler('click');
      }).toThrowMinErr(
              '$parse', 'isecdom', 'Referencing DOM nodes in Angular expressions is disallowed! ' +
              'Expression: e = $event.target');
    }));
  });

  describe('blur', function() {

    describe('call the listener asynchronously during $apply', function() {
      function run(scope) {
        inject(function($compile) {
          element = $compile('<input type="text" ng-blur="blur()">')(scope);
          scope.blur = jasmine.createSpy('blur');

          scope.$apply(function() {
            element.triggerHandler('blur');
            expect(scope.blur).not.toHaveBeenCalled();
          });

          expect(scope.blur).toHaveBeenCalledOnce();
        });
      }

      it('should call the listener with non isolate scopes', inject(function($rootScope) {
        run($rootScope.$new());
      }));

      it('should call the listener with isolate scopes', inject(function($rootScope) {
        run($rootScope.$new(true));
      }));

    });

    it('should call the listener synchronously inside of $apply if outside of $apply',
        inject(function($rootScope, $compile) {
      element = $compile('<input type="text" ng-blur="blur()" ng-model="value">')($rootScope);
      $rootScope.blur = jasmine.createSpy('blur').andCallFake(function() {
        $rootScope.value = 'newValue';
      });

      element.triggerHandler('blur');

      expect($rootScope.blur).toHaveBeenCalledOnce();
      expect(element.val()).toBe('newValue');
    }));

  });
});