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日期:2021-02-08 11:10

Software Testing: CSC364/M64

Lab Class 1

To be solved in groups of two.

Last day for lab sign-off: Feb 19, 2021

Consider the following state transition graph:

ü Task 1.1

Download, study, compile, and run the Java program SimpleStateMachine, to be found under

http://cs.swan.ac.uk/~csmarkus/Tools/

SimpleStateMachine is an implementation of the above state transition graph.

Expected Outcome: Screen-shot of the running program.

ü Task 1.2

1. Describe an interface for testing the SimpleStateMachine program in Java: what is its

input alphabet? what is its output alphabet?

2. Can you see in which state that program is?

3. Design a testing strategy of how to show that the SimpleStateMachine program is a

valid implementation of the above state transition graph. To this end, formulate your

own testing aims (e.g., after inputs hugo and erna it is possible to obtain the output

blink; whenever hugo is the input, we see output on or no output; it is not possible to

obtain output off without seeing output on before.)

4. Realise your testing strategy by

giving a test suite (relating test cases to your testing aims), and

testing SimpleStateMachine with your test suite.

Expected Outcome: A list of about testing aims; a test suite; documentation of your testing

and your test evaluation.

1

ü Task 1.3

1. Implement the state transition graph for the toaster as given in the lectures. To this end,

create a new Java program Toaster by modifying the Java program SimpleStateMachine.

2. Describe an interface for testing your Toaster program in Java: what inputs can you

enter? what outputs can you observe?

3. Design a testing strategy of how to show that your Toaster program is a valid implementation

of the state transition graph. To this end,

formulate your own testing aims

and realise your testing strategy by

giving a test suite (relating test cases to your testing aims), and

testing Toaster with your test suite.

Expected Outcome: Your toaster program; a list of about testing aims; a test suite; documentation

of your testing and your test evaluation.

2


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