Testing Angular components using mock HTML Document functionality is an important step in

Looking for help on testing a method in my component.ts. Here's the method:

print(i) {
    (document.getElementById("iframe0) as any).contentWindow.print();
}

I'm unsure how to mock an HTML document with an iframe in order to test this method.

If anyone has suggestions on how to mock an HTML document and create an instance to verify if the method is printing, I would appreciate it.

Answer №1

Could there be a mistake in the code? Is there supposed to be another quotation mark after iframe0, and was the inclusion of 0 intentional or was it accidentally pressed?

My assessment indicates that this is how it should appear

print(i) {
    (document.getElementById("iframe0") as any).contentWindow.print();
}

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