directive unit testing unable to access isolatedScope as it is not recognized as a valid

Currently, I am in the process of conducting unit tests on a directive that was previously created. For my initial test, I simply want to verify a specific variable within the scope of the directive.

However, whenever I attempt to execute the method isolatedScope() on my HTML element, I encounter an error message stating that

elem.isolatedScope is not a function
.

Interestingly, when I insert a breakpoint immediately after calling $compile on my element, I can successfully display the isolated scope of the directive through the JavaScript console.

Even if I try to assign my isolatedScope to a variable as shown below, I consistently face the issue where

elem.isolatedScope is not a function
.

describe('directive: wikis', function() {
    var $scope, elem, isolated;

    beforeEach(module('app'));

    beforeEach(inject(function(_$compile_, _$rootScope_){
        $scope = _$rootScope_.$new();

        elem = angular.element('<wikis></wikis>');
        elem = _$compile_(elem)($scope);
        isolated = elem.isolatedScope()
        isolated.$digest();
    }));

    describe('$scope should be defined', function(){
        it('data should be empty object', function() {
            expect(isolated.data).to.be.null;
        });
    });
});

Could you provide any insights or suggestions on what could potentially be causing this issue?

Answer №1

The correct term is isolateScope, not isolatedScope.

Isolate scope and isolated scope can be used interchangeably, but the former is preferred in official documentation (likely coined by one of the framework creators):

The goal is to separate the scope inside a directive from the outer scope and then connect the outer scope with the directive's inner scope by creating what we refer to as an isolate scope.

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