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GUI Testing Chapter 19 GUI characteristic Figure 19.1 What is the - - PowerPoint PPT Presentation
GUI Testing Chapter 19 GUI characteristic Figure 19.1 What is the - - PowerPoint PPT Presentation
GUI Testing Chapter 19 GUI characteristic Figure 19.1 What is the main characteristic of GUIs? GUI2 GUI characteristic 2 What is the main characteristic of GUIs? Event driven GUI3 Levels of testing What are the
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GUI–3
GUI characteristic – 2
What is the main characteristic of GUIs?
Event driven
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GUI–4
Levels of testing
What are the levels of testing?
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GUI–5
Levels of testing
For GUIs what are the levels of testing?
Unit testing Integration testing System level testing
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GUI–6
Unit testing – what
For GUIs what are the levels of testing?
Unit testing
What do we test?
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GUI–7
Unit testing – what – 2
For GUIs what are the levels of testing?
Unit testing – what do we test?
Button level Text box level
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GUI–8
Unit testing – how
How do we do unit testing?
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GUI–9
Unit testing – how – 2
How do we do unit testing?
Try clicking buttons and using text boxes Visually compare with expected results
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GUI–10
Unit testing – difficulties
What are the difficulties of unit testing?
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GUI–11
Unit testing – difficulties – 2
What are the difficulties of unit testing?
Distinguishing
Output errors Computation errors
What else?
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GUI–12
Unit testing – difficulties – 3
What are the difficulties of unit testing?
Distinguishing
Output errors Computation errors
Not easily repeatable Seat of the pants testing User input and observation errors
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GUI–13
Unit testing – overcome difficulties
How do we overcome the difficulties?
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GUI–14
Unit testing – overcome difficulties – 2
How do we overcome the difficulties?
Automate with special drivers
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GUI–15
Unit testing – other considerations
Other considerations?
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GUI–16
Unit testing – other considerations – 2
Other considerations?
Mode of implementation What does this mean?
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GUI–17
Unit testing – other considerations – 3
Other considerations?
Mode of implementation
Using GUI tools – Visual Basic
E.g. do not need to test input/output at text box
level
Text is stored correctly
Writing custom Java classes
E.g. need to test input/output at text box level Is text stored correctly?
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GUI–18
Integration testing – what
What are the levels of testing?
Unit testing Integration testing
What do we do?
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GUI–19
Integration testing – what – 2
What are the levels of testing?
Unit testing Integration testing
Little to do for GUIs
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GUI–20
System testing – what
What are the levels of testing?
Unit testing Integration testing System testing
What do we do?
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GUI–21
System testing – what – 2
What are the levels of testing?
Unit testing Integration testing System testing
Exercise event paths
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GUI–22
Event paths
How do we find event paths?
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GUI–23
Event paths – 2
How do we find event paths?
Build EDPNs
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GUI–24
EDPN build
How do we build EDPNs?
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GUI–25
EDPN build – 2
How do we build EDPNs?
First build for atomic system functions
Figure 19.2
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GUI–26
EDPN build – 3
How do we build EDPNs?
First build for atomic system functions Then?
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GUI–27
EDPN build – 4
How do we build EDPNs?
First build for atomic system functions Combine into one
Figure 19.3
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GUI–28
EDPN use
How do we use EDPNs?
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GUI–29
EDPN use – 2
How do we use EDPNs?
Look for coverage
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GUI–30
EDPN use – 3
How do we use EDPNs?
Look for coverage
What types of coverage do we look for?
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GUI–31
EDPN use – 4
How do we use EDPNs?
Look for coverage
Every atomic system function Every input port Every output port Explore common threads Explore abnormal user behaviour threads
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GUI–32
Atomic system function
What are the problems with ASFs?
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GUI–33
Atomic system function – 2
What are the problems with ASFs?
Some do not have visible system-level output
E.g. store US dollar amount
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GUI–34
Atomic system function – 3
What are the problems with ASFs?
Some do not have visible system-level output
E.g. store US dollar amount
What else?
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GUI–35
Atomic system function – 4
What are the problems with ASFs?
Determining what is an atomic system function
Copy needs to have select first
Is select an atomic function? Is copy an atomic function? Complicating / simplifying factor?
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GUI–36
Atomic system function – 5
What are the problems?
Determining what is an atomic system function
Copy needs to have select first
Is select an atomic function? Is copy an atomic function? Complicating/simplifying factor?
Grey out invalid buttons
E.g. un-grey-out is an output of select Un-greyed-out is a precondition of copy
Forced navigation simplifies GUI use and testing
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GUI–37
Common threads
Explore common threads
What are the problems?
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GUI–38
Common threads – 2
Explore common threads
What are the problems?
Determining what is common
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GUI–39
Common threads – 3
Explore common threads
What are the problems?
Determining what is common
How can it be done?
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GUI–40
Common threads – 4
Explore common threads
What are the problems?
Determining what is common
How can it be done?
Gather usage patterns
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GUI–41
Abnormal behaviour
Explore abnormal user behaviour threads
What are the problems?
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GUI–42
Abnormal behaviour – 2
Explore abnormal user behaviour
Threads could be infinitely long and/or silly
E.g. toggle between countries and then quit
What else?
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GUI–43
Abnormal behaviour – 3
Explore abnormal user behaviour
Threads could be infinitely long and/or silly
E.g. toggle between countries and then quit Interaction with other processes