Iterating over test cases fails because of no sort key

[sgrognard]

Description of problem

for testcase in self.testcases:
  File ".../tcms_api/containers.py", line 796, in __iter__self._items, key=lambda x: self._object.sortkey(x)):
     TypeError: '<' not supported between instances of 'NoneType' and 'NoneType'

Additional info

Since it looks like no sort key is set, modifying

        for testcase in sorted(
                self._items, key=lambda x: self._object.sortkey(x)):
            yield testcase

to

        for testcase in self._items:
            yield testcase

naturally "solves" the issue.

[atodorov]

@sgrognard can you post some of your code which calls the API and triggers the problem. We also need to know what data triggers this traceback.

[PiotrBorowy]

I have the same problem with iterating by TestRun.

Api lines for it:

testrun = TestRun(1)
for case in testrun:
print(case)

This throw error:
Traceback (most recent call last):
File "api_test.py", line 52, in
for case in testrun:
File "/usr/local/lib/python3.4/dist-packages/tcms_api/mutable.py", line 508, in iter
for caserun in self.caseruns:
File "/usr/local/lib/python3.4/dist-packages/tcms_api/containers.py", line 958, in iter
for caserun in sorted(self._items, key=lambda x: x.sortkey):
TypeError: unorderable types: NoneType() < int()

It seems like Container do not have sortkey item, and thats why returns NoneType()

[atodorov]

This has been fixed during the RPC refactoring released with version 4.0.0. I've just added a test for it and will close this issue once the test is merged.