Introduction to test automation in java and php
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Tho Q Luong gave a presentation on test automation in Hanoi on June 28, 2014. The presentation covered introducing testing frameworks like JUnit, best practices for implementing unit tests, common questions about testing, and the benefits of test automation. Specifically, the presentation outlined that JUnit is a popular unit testing framework for Java projects, recommended a six step process for writing unit tests, and addressed questions about test-driven development, mocking objects, and disadvantages of writing tests. The overall conclusion was that test automation can improve code quality and help developers avoid bugs when modifying code.
Introduction to test automation in java and php
- 1. Tho Q Luong Hanoi, June 28, 2014
- 2. 2 ๏จ Assuming listeners know: ๏ค Fundamentals of OOP ๏ค Basics of Java and PHP ๏จ Convention in this talk: when saying โtestโ I mean โtest automationโ, โautomated testโ (vs. manual test) Before Outline
- 3. Outline 3 โข Introduction โข Testing Framework: JUnit โข Best Practice to Implement Unit Test โข FAQ โข Conclusion
- 4. Introduction 4 ๏จ Cool things that we were learnt in the school: 1. Algorithm and programming 2. UML and design 3. Test 4. Software project management ๏จ Must utilize all of them to create a good app?
- 5. Introduction 5 ๏จ Definition of test automation: โTest automation is the use of special software to control the execution of tests and the comparison of actual outcomes with predicted outcomesโ
- 6. 6 test and me: a love story Introduction
- 7. Test and me 7 ๏จ Coding business services ๏จ Try my best but my code still has serious errors ๏ค Developers in GUI layer complain ๏ค Testers complain ๏ค And the world hates me ๏จ Q: How to let they know I am a good developer ? ๏ค A: writing unit test Business Service GUI Database Three-tier application
- 8. Test and me: benefits of testing 8 ๏จ Save my life ๏จ Improve product quality ๏จ Save my energy when: ๏ค Modify source code: ๏ฎ Maintain, upgrade ๏ฎ Fix bugs ๏ค Identify bugs ๏จ Avoid my silly and repetitive bugs
- 10. Testing Framework: JUnit 10 ๏จ JUnit is an unit testing framework for Java ๏จ The most popular testing framework for Java ๏จ Ported to other languages: CPP, PHP, C#, Ruby, Javascript โฆ (21 languages) ๏จ Supported in IDEs: Netbeans, Eclipse ๏จ Simple and easy to use
- 11. Testing Framework: JUnit 11 Test Class Test Result Expected Outcome
- 12. Testing Framework: JUnit 12 ๏จ Suite: ๏ค Group tests from many classes ๏ค Run test group as a single test execution ๏จ Category: ๏ค Group tests that are marked in sepecific classes ๏ค Run test group as a single test execution
- 13. JUnit summary 13 ๏จ Keywords: 1. Assert.assertXXX() 2. @BeforeClass 3. @AfterClass 4. @Before 5. @After 6. @Test 7. Suite 8. Category
- 14. Best Practice to Implement Unit Test 14
- 15. Best Practice 15 ๏จ 06 steps: 1. Identify test class, test method example: to test UserService and AccessControlService: create UserServiceTest with two method: 1. testUser(): CRUD and Find 2. testAccessControl(): assign, unassign and check permission
- 16. Best Practice 16 ๏จ 06 steps: 2. Describe test
- 17. Best Practice 17 ๏จ 06 steps: 3 + 4 3. Implement test: should prefix variables by step name 4. Join test into Single Test Category and run
- 18. Best Practice 18 ๏จ 06 steps: 5 + 6 5. Create new suite or category if necessary 6. Join test into suitable suite(s) and/or category(s) and run this suite(s) and/or category(s) DEMO: 1. Single Test Category 2. Test Low Layer (Services) 3. Test High Layer (Controllers) 4. Load Test ----------
- 19. FAQ 19
- 20. FAQ 20 ๏จ Q: what is test-driven development? ๏ค A: โis a software development process that replies on the repetion of very short development cycle: 1. Add a test 2. Run all tests and see if the new one fails 3. Write some code 4. Run tests 5. Refactor code And repeatโ ๏ค Related to the test-first programming concepts of XP
- 21. FAQ 21 ๏จ Q: It is already 100K LOC, with no tests. Is it over? ๏ค A: NO, this is the good time to try writing tests
- 22. FAQ 22 ๏จ Q: what is mock object? ๏ค A: Simulate objects that mimic behavior of real objects ๏ค Used in a unit test when real object is impracticial ๏จ Q: have you ever used a mock framework in test? ๏ค A: NO ๏จ Q: what are disadvantages of writing unit tests? ๏ค A: Slow down the release time
- 23. FAQ 23 ๏จ Q: Do good developers not need to write test? ๏ค NO, because good developers will work with more sophisticated projects ๏จ Q: Do good products have good tests and vice versa? ๏ค Maybe YES
- 24. Conclusion 24 ๏จ Test Automation lengthens coder life and improves software quality ๏จ JUnit is easy to use ๏จ Let start writing unit test to build a better life!
- 25. Thank you! 25