Advanced Software Test Automation
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Advanced Software Test Automation

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Advanced Software Test Automation Advanced Software Test Automation Presentation Transcript

  • ADVANCED TEST AUTOMATION By Unmesh Ballal
  • AGENDA • Introduction to Test Automation • When to Automate • White – Box Testing • Benefits of Test Automation • Tools Used in Test Automation • Automation Test Case Specifications • Test Automation Process • Conclusion
  • INTRODUCTION TO TEST AUTOMATION • Criteria for Test automation • Functional testing is completed • Unit testing is not enough for automation • Scenario to be automated • Need To reduce integration to external applications • Maintain base compatibility and extend application with new versions and complex functionality • Automate smaller code changes • Identifying and finding defects in scenarios
  • WHEN TO AUTOMATE • Build needs to be stable • No New functionality is added • No defects since the test execution and build validated
  • WHITE – BOX TESTING – THINGS TO CODE • Control flow testing • Data flow testing • Branch testing • Path testing • Statement coverage • Decision coverage
  • BENEFITS OF TEST AUTOMATION • Save time in executing tests • Repeatability • Automated maintenance • Coverage of testing • Quality assurance • Cost reduction for regression testing • Reduce Testing cycles • Manual testing Human error is eliminated • More opportunity to improve productivity • Software can be enhanced without interference of modules that are integrated • The testing can be executed using configurable data.
  • TOOLS USED IN TEST AUTOMATION • Visual Studio 2008 C# • Microsoft Test • NUnit
  • AUTOMATION TEST CASE SPECIFICATIONS • Pre-condition is scenario – will be required to pre create data before calling the method. • All returned data is used in test assertions • Certain steps can be verified after method call returns to ensure that code is executed. • All data referred in the function is created by helper methods before calling the methods so there is consistency in execution • Post conditions are scenario level validations that will be required as an additional code.
  • TEST AUTOMATION STRATEGY • Write test case for each flow considering if-else flows • Automate some methods automatically by automating top – level classes • Identify number of methods for each class to be automated • Use Code coverage tool and identify gaps and improve coverage • Start Automating!
  • TEST AUTOMATION PROCESS – CREATE TEST PROJECT • Create a New Visual Studio solution sub-project – Test Project template
  • CREATE NEW TEST PROJECT
  • ADD TESTS TO TEST PROJECT
  • TEST CASE DEVELOPMENT
  • NEXT STEPS • Add Helper Methods for building data • Accessors to test private methods • Execute the Tests • Use a Code Coverage tool for analysis • Identify missing coverage • Automate process on command line for continuous integration e.g. mstest /testcontainer:TestProject1.dll
  • CONCLUSION • Re-run test cases if Code Changed • Validate integrity continuously by validating results • Update code if test case failed and not a defect • Done!