I am new to writing test cases.I am writing test cases for a screen having few inputs,Submit and reset button. I want to know that when i write a test case of a input field i should also assume that all previous input fields have valid data or i just concentrate on one filed at a time.Please let me know. For example if there are 4 input fields then for first field i will test if its mandatory or not,what is max and min length etc. Again when i write test case for second field ,i will again check if the second field is mandatory,max and min length.So should i also mention that first field has valid inputs while writing test cases for second field?
Ajse, I recommend focusing on what has meaning. For example, can you submit the form with just field 2 submitted? If so, this is a valid case to test alone. If field 2 requires field 1, they should both be in the same test case.