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Is it a bug?
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..
text.c
other.files
for (. . .) {
if (name[0] == '.') continue;
. . .
}
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Testing ohne assertions
The document discusses the challenges and considerations of test automation, particularly focusing on assertions and their role in detecting changes in expected behavior. It emphasizes the differences between bugs and features, the importance of specification in determining bugs, and the need for effective automated regression testing. Additionally, it highlights various testing practices and tools that enhance the testing process.
Testing ohne assertions
- 1. @roesslerj1 Testautomatisierung ohne Assertions Dr. JeremiasRößler https://retest.de
- 2. @roesslerj2 What is anassertion?
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- 11. @roesslerj11 Binding test totest-data!
- 12. @roesslerj12 What does anassertion do?
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- 14. @roesslerj14 1 - 2= ? • -1 is mathematically correct • 0 if I don’t want to payback gift certificates to costumers • 23 if I’m working with hours • 59 if I’m working with minutes or seconds • Something between 27 and 30 if I’m working with days • 11 if I am working with months • exception if I am working with degrees Calvin • …
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- 18. @roesslerj18 When is abug a bug? When it’s not a feature!
- 19. @roesslerj19 Is it abug? . .. text.c other.files for (. . .) { if (name[0] == '.') continue; . . . } ls
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- 22. @roesslerj22 What is abug? Without specification, there are no bugs — only surprises. Brian Kernighan “
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- 25. @roesslerj25 Why do wetest? After implementation? 1 + 1 = 3 2 + 2 = 4
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- 28. @roesslerj29 Why do wetest? After implementation? 1 + 1 = 3 2 + 2 = 4 After change? 1 + 1 = 3 1 + 1 = 5
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- 31. @roesslerj32 Why do wetest? After implementation? 1 + 1 = 3 2 + 2 = 4 After change? 1 + 1 = 3 1 + 1 = 5 1 + 1 = 2
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- 37. @roesslerj38 Testing Actual wrong Bug Comparison Expectedvs Actual Test Execution Done No Difference
- 38. @roesslerj39 Actual wrong Bug Comparison Expectedvs Actual Update Expected Expected wrong Test Execution Done No Difference Difference Evaluate Difference Testing
- 39. @roesslerj40 Actual wrong Bug Comparison Expectedvs Actual Update Expected Expected wrong Test Execution Done No Difference Difference Evaluate Difference Testing effort effort
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- 45. @roesslerj46 Golden Master tothe rescue
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- 64. @roesslerj65 @Test public void test_login()throws Exception { final WebDriver driver = new FirefoxDriver(); driver.get( "http://www.retest.de" ); recheck.check( driver ); driver.findElement( By.id( "username" ) ).sendKeys( username ); driver.findElement( By.id( "pwd" ) ).sendKeys( password ); driver.findElement( By.className( "button" ) ).submit(); recheck.check( driver ); }
- 65. @roesslerj66 @Test public void test_login()throws Exception { final WebDriver driver = new RecheckDriver(new FirefoxDriver()); driver.get( "http://www.retest.de" ); recheck.check( driver ); driver.findElement( By.id( "username" ) ).sendKeys( username ); driver.findElement( By.id( "pwd" ) ).sendKeys( password ); driver.findElement( By.className( "button" ) ).submit(); recheck.check( driver ); }
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- 67. @roesslerj68 @Test public void test_login()throws Exception { final WebDriver driver = new RecheckDriver(new FirefoxDriver()); driver.get( "http://www.retest.de" ); recheck.check( driver ); driver.findElement( By.retestId( "username" ) ).sendKeys( username ); driver.findElement( By.retestId( "pwd" ) ).sendKeys( password ); driver.findElement( By.retestId( "button" ) ).submit(); recheck.check( driver ); }
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- 70. @roesslerj @roesslerjX @roesslerjX@roesslerjX Actual wrong Bug Comparison Expectedvs Actual Update Expected Expected wrong Test Execution Done No Difference Difference Evaluate Difference Testing effort effort @roesslerjX 71 Questions?
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