Is your feature request related to a problem or challenge?
The existing contributor guide's "Testing" section only lists the existing test infrastructure: https://datafusion.apache.org/contributor-guide/testing.html
It would be helpful to add a section on how to write good tests, explaining the mental model and philosophy behind testing — something like "covering edge cases and error cases".
Describe the solution you'd like
No response
Describe alternatives you've considered
No response
Additional context
No response
Is your feature request related to a problem or challenge?
The existing contributor guide's "Testing" section only lists the existing test infrastructure: https://datafusion.apache.org/contributor-guide/testing.html
It would be helpful to add a section on how to write good tests, explaining the mental model and philosophy behind testing — something like "covering edge cases and error cases".
Describe the solution you'd like
No response
Describe alternatives you've considered
No response
Additional context
No response