Recently we are replacing our complex (and frankly cluttered) Search function with a much cleaner one. We are planning to do an AB Test to test the way users like to search/what effect different ways of searching affect user motivation. The two AB test options are just a magnifying glass icon in the nav bar or a magnifying glass icon and a textfield.
My question is from a user experience standpoint is there any reason to do this test if the only difference between the textfield and the icon is that when you press the textfield on the next screen you are already selecting the textfield? I tried to explain this but have hit a brick wall of sorts. I am of the opinion that in the case of both of them they are so similar that the AB test is useless. Am I overthinking things? The magnifying glass is here to stay so this test will determine if we leave the textfield(button) or not.