A test script executes one path through the capability being tested by the test case. This script may be specified as a path through an activity diagram, a sequence diagram, or text. Some test scripts require manual manipulation of inputs such as pushing buttons. Others may be automated by the program that executes the test. Still others may use a combination of test hardware and a testing language to stimulate component inputs and read component outputs.

In all cases, describe the initialization conditions for the tests. Describe each action and the expected component response in the test management software. Define the passing and failure conditions completely.

Some typical test scripts include:

• Properly formatted messages between components
• Software component interactions with the Real Time Operating System
• Proper response to hardware signals
• Handling data outside the expected range
• Handling unexpected inputs