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Automation test

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This document discusses principles and tools for automated testing. It covers unit testing frameworks like JUnit and mocking frameworks like Mockito. It also discusses testing principles such as writing state-based assertions, focusing tests on behaviors rather than methods, using test data builders, and treating test code as an important part of the codebase. The document provides examples of testing techniques for different types of applications, frameworks, and languages.

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Automation Test 余昭辉 2011.10
I’m a…  Developer(C#, Java, Scala…)  Blogger(http://yuyijq.cnblogs.com)  Microsoft MVP(C#) I like…  CLR, JVM  OO, Design Pattern, Clean Code  Agile(TDD, Code Review, Pair Programming, etc)
Tools
jUnit  Test Fixture  BeforeClass, AfterClass, Before, After, assumeThat, Group Tests  Extensions  DbUnit, jsonAssert  Hamcres  Matchers  More expression  Friendly assert result
Mock  Mockito  jMock  easyMock  MockObjects
Spring test  MockHttpServletRequest  MockHttpServletResponse  MockHttpSession  MockServletConfig  MockServletContext  …  ModelAndViewAssert
Selenium + WebDriver  driver.get(“http://www.qunar.com”)  driver.findElement(By.id(“login”)).click();  …
BDD(Cucumber)  How to manage test cases?  The relation between test cases and test code.  QA and Dev
Principles
Test is a feedback mechanism  Run fast  Run after each modified  Run before check-in  …
Test triangle Functional Tests Integration Tests Unit Tests
State-based assert over behavior-based assert  assertThat(service.findById(1),is(expected))  verify(service,times(1)).findById(1);
assertThat over assertXxx  Self description  Different parameter type
Test behavior, not methods  One behavior, one test  Not one method many tests  One test one assert(*)
Test method name is important  Test method is document  Give your intent:  testFindById is not a good name  should_find_agent_by_id is better  TestDox rule
Test data builder  Agent agent = new AgentBuilder().build();
Repeat run  Don’t modified database, transaction  Prepare data itself, or write fixture
Test code is as important as product code  We should extract duplicate code to method  We should use good names  …
Add test at:  If you want to add println to get debug info  If you find a bug, write a test first
Test as singal  It’s very difficult to test  Three steps:  Given  When  Then  Test private methods
Demo
Remember  Automated test can’t avoid bugs  Even it can’t help you find bugs  But it can avoid introduce bugs  But…
Thank you

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Automation test

  • 1. Automation Test 余昭辉 2011.10
  • 2. I’m a…  Developer(C#, Java, Scala…)  Blogger(http://yuyijq.cnblogs.com)  Microsoft MVP(C#) I like…  CLR, JVM  OO, Design Pattern, Clean Code  Agile(TDD, Code Review, Pair Programming, etc)
  • 4. jUnit  Test Fixture  BeforeClass, AfterClass, Before, After, assumeThat, Group Tests  Extensions  DbUnit, jsonAssert  Hamcres  Matchers  More expression  Friendly assert result
  • 5. Mock  Mockito  jMock  easyMock  MockObjects
  • 6. Spring test  MockHttpServletRequest  MockHttpServletResponse  MockHttpSession  MockServletConfig  MockServletContext  …  ModelAndViewAssert
  • 7. Selenium + WebDriver  driver.get(“http://www.qunar.com”)  driver.findElement(By.id(“login”)).click();  …
  • 8. BDD(Cucumber)  How to manage test cases?  The relation between test cases and test code.  QA and Dev
  • 10. Test is a feedback mechanism  Run fast  Run after each modified  Run before check-in  …
  • 11. Test triangle Functional Tests Integration Tests Unit Tests
  • 12. State-based assert over behavior-based assert  assertThat(service.findById(1),is(expected))  verify(service,times(1)).findById(1);
  • 13. assertThat over assertXxx  Self description  Different parameter type
  • 14. Test behavior, not methods  One behavior, one test  Not one method many tests  One test one assert(*)
  • 15. Test method name is important  Test method is document  Give your intent:  testFindById is not a good name  should_find_agent_by_id is better  TestDox rule
  • 16. Test data builder  Agent agent = new AgentBuilder().build();
  • 17. Repeat run  Don’t modified database, transaction  Prepare data itself, or write fixture
  • 18. Test code is as important as product code  We should extract duplicate code to method  We should use good names  …
  • 19. Add test at:  If you want to add println to get debug info  If you find a bug, write a test first
  • 20. Test as singal  It’s very difficult to test  Three steps:  Given  When  Then  Test private methods
  • 21. Demo
  • 22. Remember  Automated test can’t avoid bugs  Even it can’t help you find bugs  But it can avoid introduce bugs  But…

Editor's Notes

  • #11: If you modified some code, ensure you don’t break the test, if you break some tests, please fix it as quick as possible. You mustn’t leave the fail test to …