Software Testing Fundamentals

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Software Testing Fundamentals Powered By Docstoc
					Software
 Testing
 How has agile
     changed
   the game?

 Karen Greaves
             • Building the
               system right
Validation   • Compare
               against a
               specification


             • Building the
               right system
Verification • Compare
               against
               customer needs
Cost of fixing a defect
Test

Early
HOWTO: Test Early


Testers involved in Sprint Planning
Testers work from day 1 of the sprint
Done includes testing & fixing
Don’t let developers get ahead
Team signs off each story
                           Cost vs Benefit of
                300
                             Automation
                250


                          Automated Testing
Relative Cost




                200

                          Manual Testing
                150




                100




                 50




                  0
                      0           5           10    15       20   25



                                      Number of Test Executions
Automate
HOWTO: Automation
Make automation part of every story
Everyone runs automated tests
Quick to run & interpret
Flexible to run
Don’t automate once off tests
Automate things you do everyday
Automate sanity tests
Defects Found
                Defect Yield



                               High Yield
                               Average Yield
                               Low Yield




                Time Testing
Test Smarter
  HOWTO: Test Smarter




White or grey box testing
Understand where bugs could exist
Trust developers
Static testing
Use fundamental techniques
   Test Fundamentals
Pair wise / All pairs testing
Equivalence partitioning
Boundary case analysis
Dependency maps for regression
Separate functional testing from load
testing
          Tracking
When should you log a bug?
How many defects states?
Priority and severity?
The importance of classifying bugs
Clean out your defect system regularly
        Test Reporting
System status at a glance
Test depth
Defect trends



 Working software over comprehensive
             documentation
 Technical stuff
you need to know
 Version Control
 Build Process
 Installers and Upgrades
 Environments
   Implications of agile

Build the right system
Test Early
Automate Testing
Test Smarter
Quality is everyone’s concern

				
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posted:5/3/2013
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