angularjs - TypeError: undefined is not a constructor only when test should pass -

in karma test have

controller.js

var somevalue = false; 

test.js

expect(somevalue).tobe(true); 

this gives me output: expected false equal true.

but if change statement should pass (changing .tobe(false)). get:

test.js

expect(somevalue).tobe(false); 

typeerror: undefined not constructor (evaluating 'angular.element.cleandata(cleanupnodes)')

the test passing, had underlying problems aside test. (angular , angular-mock versions not matching)