what is the exact difference between a test script and a test case?
prathibha, a “test case” is description of what has to be tested and how to go about doing it. A “test script” is code to perform checks described in the test case. For example: Test case (this is a trivial example): enter the zip code “A1234” into the “ZipCode” field. The results should be the error message “A zip code must be 5 digits.” Test script: … edit_set(“ZipCode”,”A1234″); button_press (“OK”); … web_obj_text_exists(… “A zip code must be 5 digits”) …