Error: The jasmine framework is unable to locate the window object

Question

Error: The jasmine framework is unable to locate the window object

Currently, I am testing a method that includes locking the orientation of the screen as one of its functionalities. However, when using Jasmine, I encountered an error at the following line:

(<any>window).screen.orientation.lock('portrait')

indicating that undefined is not a constructor.

I attempted to use window.screen methods without TypeScript types by using

window.screen.msOrientationLock('landscape')

and other similar methods but still faced the same error. I have also injected _$window_ in the beforeEach block of my tests.

It's worth noting that checking if it locks is not essential for my test. Is there a way to skip this specific line or resolve this error? Thank you :)

javascript typescript jasmine window

Answer 1

Answer №1

It turned out to be a simple fix. I needed to inject the window object and assign it to a global variable within my global beforeEach function, like so:

$window = _$window_;

After that, the issue arose when the orientation property was missing from the window.screen object. To solve this, I created a mock inside my test case as follows:

$window.screen.orientation = {
  lock: function() { return; }
};

This step was necessary before spying or executing any method that utilized window.screen.orientation.lock.

Answer 2

It turned out to be a simple fix. I needed to inject the window object and assign it to a global variable within my global beforeEach function, like so:

$window = _$window_;

After that, the issue arose when the orientation property was missing from the window.screen object. To solve this, I created a mock inside my test case as follows:

$window.screen.orientation = {
  lock: function() { return; }
};

This step was necessary before spying or executing any method that utilized window.screen.orientation.lock.

Error: The jasmine framework is unable to locate the window object

Answer №1

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