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Continuous integration and test

Learn about the principles, practices, and benefits of continuous integration and automated testing. Enhance collaboration, improve project visibility, and reduce risks in software development. Discover open-source CI/CT tools and best practices for successful implementation.

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Continuous integration and test

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  1. Continuous integration and test Stephen Oglesby - CSCI577b – April 2011

  2. Introduction • Who am I? • What is Continuous Integration? • Continuous Integration + Automated Testing • Requirements for successful CI&T • Scaling options • CI&T within CSCI577ab “Cake, and grief counseling, will be available at the end of the testing period.” - GLaDOS

  3. Continuous Integration • “Continuous Integration is a software development practice where members of a team integrate their work frequently, usually each person integrates at least daily - leading to multiple integrations per day. Each integration is verified by an automated build (including test) to detect integration errors as quickly as possible.” – Martin Fowler • Born out of eXtreme Programming (XP), not limited to it.

  4. What does that mean? • Code commit detection • Per check-in compilation (yes you should do this anyway, but now it’s automatic) • Automated build solution • Expandable to include static code analysis • Results reported to the team • Immediate notification of integration errors • Faster resolution

  5. CI & Test • Automated unit & acceptance testing is a natural extension of CI • Reduces test time and cost • Improve communication & project visibility • Updated and available test results throughout development • Bug Tracking System integration for automatically logging new defects • Reduce risk

  6. Requirements • Single source repository • Automated build • Automated self-test • Tests run on production environment clone

  7. Requirements (cont.) • Fast builds

  8. Scaling Up from XP • Add Hierarchy • Execute build at each level of integration • Label version units based on integration test depth Copper Silver Copper Gold Copper Silver Copper • Add Builds • Stable, Beta, Dev, Nightlies

  9. CI&T in CSCI577ab • Requires bringing test activities into the first semester • Test case definition during requirements gathering/WikiWinWin • Still requires test case dependencies, even more critical since automation environment needs them • Standardized test procedures and results, automatically generated • Automation Framework + CI Server should be largely reusable across most projects

  10. CI&T in CSCI577ab (cont.) • Provides quantitative assessment criteria • Percentage of development time with a failed build • Number of overnight build failures • Number of deleted test cases • Percentage of requirements with corresponding test cases • Percentage of methods not tested • Increases team collaboration, code quality, developer productivity

  11. Open Source CI&T Solutions • Automated Test Frameworks • Framework for Integrated Test (Fit + Fitnesse) • Software Testing Automation Framework (STAF) • Selenium • Continuous Integration Server • CruiseControl + Subversion “At the end of the experiment you will be baked, and then there will be cake” - GLaDOS

  12. References • Sean Stolberg, “Enabling Agile Testing Through Continuous Integration”, Agile Conference 2009, IEEE, pg 369-374, 2009 • HehuiLiu, Zhongjie Li, Jun Zhu, Huafang Tan, and Heyuan Huang, “A Unified Test Framework for Continuous Integration Testing of SOA Solutions”, 2009 International Conference on Web Services, IEEE, pg 880-887, 2009 • EunHa Kim, JongChae Na, and Seok Moon Ryoo, “Test Automation Framework for Implementing Continuous Integration”, Sixth International Conference on Information Technology: New Generations, IEEE, pg 784-789, 2009 • Eun Ha Kim, JongChae Na, and Seok Moon Ryoo, “Implementing an Effective Test Automation Framework”, 23rd Annual IEEE International Computer Software and Applications Conference, IEEE, pg 534-538, 2009 • Jon Bowyer and Janet Hughes, “Assessing Undergraduate Experience of Continuous Integration and Test-Driven Development”, 28th International Conference on Software Engineering, ACM, pg 691-694, 2006 • FabrizioCannizzo, Robbie Clutton, and Raghav Ramesh, “Pushing the Boundaries of Testing and Continuous Integration”, Agile 2008 Conference, IEEE, pg 501-505, 2008 • Christopher G. Jones, “Test-Driven Development Goes to School”, Journal of Computing Sciences in Colleges, Volume 20, Issue 1, pg 220-231, 2004 • Martin Fowler, “Continuous Integration”, http://www.martinfowler.com/articles/continuousIntegration.html, 2006

  13. Questions? “Well done. Here are the test results: You are a horrible person. I'm serious, that's what it says: A horrible person. We weren't even testing for that.” - GLaDOS

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