reverse engineering of gui models
DESCRIPTION
Reverse Engineering of GUI Models for TestingTRANSCRIPT
18th June 2010
Reverse Engineering of GUI Models for Testing
André M. P. Grilo, Ana C. R. Paiva, João Pascoal Faria
CISTI 2010
18th June 2010
Contents
Introduction
Reverse Engineering Approaches
Reverse Engineering and Testing Process
REGUI Tool
Case Study
Conclusions
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Motivation
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Context
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AMBER iTest
Visual modellin
g
Coverage informatio
n
UML visual model
Test coverag
e analysis
new Spec Explorer
Test casegeneratio
n
Visual to formal model
translation new
m()prepost
{body}
Test suite
(abstract)
Test results
Test Executio
n Spec Explorer
GUI mapping
code & data (adapter)
GUI Applicatio
nUnder Test
........
......
...
Model to implementatio
n mapping
oracle
Reverse Engineering
new
REGUI Tool
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Objectives
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Diminish effort required to construct the model
Automate the interactive exploratory process
Extract: Structural Information Navigation Steps Behaviour
Produce a Spec# Model
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Static Approach Dynamic Approach
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Reverse Engineering Approaches
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Reverse Engineering and Testing Process
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Description of the Algorithm (1/2)
Phase One
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Description of the Algorithm (2/2)
Phase Two
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Description of the Algorithm (3/3)
Phase Three
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REGUI Tool
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Structural Information
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<?xml version="1.0" encoding="utf-8" ?>
<application xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<window>
<name>Find</name>
<AutomationID />
<ControlType>Dialog</ControlType>
<L_Controls>
...
<Control>
<name>Find Next</name>
<AutomationID>1</AutomationID>
<ControlType>button</ControlType>
</Control>
<Control>
<name>Find what:</name>
<AutomationID>1152</AutomationID>
<ControlType>edit</ControlType>
</Control>
...
</L_Controls>
</window>
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Navigational Steps
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<navigation>
<Nav1>
<source>Notepad</source>
<destination>Find</destination>
<steps>
<Nsteps>6</Nsteps>
<0>setText document = "aaa"</0>
<1>FocusChange Edit</1>
<2>Mouse Click</2>
<3>FocusChange Find</3>
<4>Mouse Click</4>
<5>FocusChange FindWhat</5>
</steps>
</Nav1>
...
</navigation>
</application>
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Inferring Dependencies
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<dependency>
<dep1>
<window>Find What</window>
<source>textbox Find what:</source>
<destination>button Find Next</destination>
<action>setText(“a”, Find What)</action>
<property>FindNext.IsEnabled = true</property>
</dep1>
...
</dependency>
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Spec# Model//Notepad window
[Action] void SetTextDocument(string typedText)
modifies Document.text && MenuItemFind.IsEnabled;
requires IsEnabled("Notepad");
{ //TODO}
[Action] void MenuItemFind()
requires text!="" && IsEnabled("Notepad") ;
ensures IsOpen("Find"));
{ //TODO}
…
//Find dialog
[Action] void SetTextFindWhat(string str)
modifies TextFindWhat.text && ButtonFindNext.IsEnabled;
requires IsEnabled("Find");{
TextFindWhat.text = str;
}
[Action] void FindNext()
requires IsEnabled("Find");
{ //TODO}
…
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Conclusions
Presented a new technique to obtain a model of the GUI’s structure and some of its behaviour.
Model kept in a XML file Spec#
The reverse engineering process combines automatic with manual exploration
which solves some of the “blocking problems” found in the approaches
Using the REGUI tool, the effort in the construction of the GUI model was reduced
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Main Contributions
A New Reverse Engineering Approach
A REGUI Tool
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Future Work
Implement new algorithms to extend the set of dependencies among GUI objects found automatically by the tool;
We also intend to validate the approach with more complex software applications.
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Thanks for your time
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