Pulp

Description of problem:
https://pulp-dev-guide.readthedocs.org/en/latest/integration/rest-api/content/associate.html#unassociating-content-units-from-a-repository

Unassociation of content units from repo that does not exist should return 404(like in case of unit association to non existant repo) and not call report with task creation.

$ curl H "Accept: application/json" -X POST -k -u admin:admin -d '{"criteria": {"type_ids": ["rpm"], "filters": {"unit": {"name": "cat"}}}}' 'https://example.com/pulp/api/v2/repositories/invalidrepo/actions/unassociate/'| python -m json.tool
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 245 100 172 100 73 110 46 0:00:01 0:00:01 -:--:-- 110
{
"error": null,
"result": null,
"spawned_tasks": [
{
"_href": "/pulp/api/v2/tasks/610fff11-3076-4528-83a4-fa150ea66239/",
"task_id": "610fff11-3076-4528-83a4-fa150ea66239"
}
]
}

Compare with unit association to non existent repo:

$ curl H "Accept: application/json" -X POST -k -u admin:admin -d '{"source_repo_id": "xxx", "override_config": {}, "criteria": {"type_ids": ["rpm"], "filters": {"unit": {}}}}' 'https://example.com/pulp/api/v2/repositories/invalidrepo/actions/associate/'|python -m json.tool
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 526 100 418 100 108 459 118 -:--:-- --:--:-- --:--:-- 459
{
"_href": "/pulp/api/v2/repositories/invalidrepo/actions/associate/",
"error": {
"code": "PLP0009",
"data": {
"resources": {
"repo_id": "invalidrepo"
}
},
"description": "Missing resource(s): repo_id=invalidrepo",
"sub_errors": []
},
"error_message": "Missing resource(s): repo_id=invalidrepo",
"exception": null,
"http_request_method": "POST",
"http_status": 404,
"resources": {
"repo_id": "invalidrepo"
},
"traceback": null

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
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Actual results:

Expected results:

Additional info:

+ This bug was cloned from Bugzilla Bug #1092417 +