How (Much) Do Developers Test?

Moritz Beller@Inventitech

Andy Zaidman

Georgios Gousios

50% … of Project Effort

Software Testing takes ...

50% … of Project Effort

Brooks, 1975

Software Testing takes ...

Testing means all things to all men

How (Much) Do You Test?

40

4.2 yr

OMG!!!

Histogram of Testing Time

Histogram of Testing Time

50% of students test only 4% of their time, or less

Estimated 27%

Estimated 27%

Reality 9%

>1,300

Estimated 48%

Estimated 48%

Reality 25%

@InventitechMoritz Beller, TU Delft

How (Much) Do Developers Test?

TestRoots.org

@InventitechMoritz Beller, TU Delft

How (Much) Do Developers Test?

TestRoots.org

Code Changes~

Test Executions

@InventitechMoritz Beller, TU Delft

How (Much) Do Developers Test?

TestRoots.org

Code Changes~

Test Executions

@InventitechMoritz Beller, TU Delft

How (Much) Do Developers Test?

TestRoots.org

Code Changes~

Test Executions

@InventitechMoritz Beller, TU Delft

How (Much) Do Developers Test?

TestRoots.org

Code Changes~

Test Executions

Poster Session

Thursday, 4pm,Passi Perduti