3. A list of testing steps should be developed for each test and should contain:

a. A list of specified states for the class that is to be tested

b. A list of messages and operations that will be exercised as a consequence of the test

c. A list of exceptions that may occur as the class is tested

d. A list of external conditions (i.e., changes in the environment external to the software that must exist in order to properly conduct the test)

e. Supplementary information that will aid in understanding or implementing the test?