I have a function that accepts File object as input parameter. Normally function gets it from form element, where user selects file.
Function converts input File to Image, manipulating it and then returns a blob. Conversion is done with image.src = URL.createObjectURL(file);, where file is input File object.
But how can I test that function with real files with jest? I need to read real image from local filesystem and pass it to that function. Any advice how to do that?