SW-816: reused radb connections. Testing showed that opening/closing db connection too quickly in succession can lead to timeouts while waiting for sockets in TCP_WAIT state.

SW-816: bonus feature: refactored RADBCommonTest into a RADBCommonTestMixin which takes care of setting up a testing postgres radb instance, and which can be used in conjunction with a unittest.TestCase to do unittests on a fresh RADB instance. By using a mixin instead of chained inheritance we have better seperation of responsibility, and tools like pycharm can handle these tests better as well.

SW-816: modified radb insertSpecificationAndTask into insertOrUpdateSpecificationAndTask. This has the advantage that we do not have to reconnect predecessor relations, and in the webscheduler a re-insert of a task will now be visible as an update on an existing task, instead of a delete (disappear) followed by an insert (reappear). Catch task_predecessor_unique PostgresDBQueryExecutionError in the Specification class of the resourceassigner, so scheduling can continue even on tasks which were already known and already had links to predecessors.

SW-800: Make sure open and close get called on MoMQueryRPC when using the schedulers

Closes SW-800

See merge request !24

(cherry picked from commit 596192c4)

2c343edb SW-800: Make sure open and close get called on MoMQueryRPC when using the schedulers
243f8d8c SW-800: processed review comments: use BasicScheduler within a context as well
502a4ea6 SW-800: merged master into SW-800
e7008d39 SW-800: fixes

Resolve SW-796

See merge request !26

(cherry picked from commit ae8f2617)

fe65ce37 SW-796: fixed radb tests
65b4d86f SW-796: fixed t_momqueryservice.py. We still need to un-skip IntegrationTestMoMDatabaseWrapper.
389ea3e4 SW-796: fixed tpyparameterset
4e44e3c3 SW-796: fixed t_TreeStatusEvents
63b9b189 SW-796: typos
2eb326cc SW-796: fixed ingest typos and tests
be63b190 SW-796: fixed t_qa_service
764d8d76 SW-796: fixed t_qa_service
17478140 SW-796: fixed (not-so-complete) test_ra_service_and_rpc
67306896 SW-796: fixed tRATaskSpecified
469fe393 SW-796: fixed t_resource_estimator
6d87ea88 SW-796: fixed t_schedulechecker
3fba3ba2 SW-796: fixed t_resource_availability_checker
7b1f0f7b SW-796: fixed typos in scraper.
c5dc773e SW-796: fixed t_resourceassigner
7f165dd2 SW-796: fixed t_resourceassigner
de48d55c SW-796: fixed ltastorageoverview tests: test_store, integration_test_store and test_lso_webservice
977ee079 SW-796: fixed t_schedulers
6d691753 SW-796: Merge branch 'SW-796' of git.astron.nl:ro/lofar into SW-796
ca84122f SW-796: fixed tresourcetool
98cc4a38 SW-796: fixed t_translation_service
4150a16d SW-796: fixed t_specification_service
c9a5988b SW-796: fixed t_TriggerEmailService
4e779152 SW-796: fixed t_trigger_service
60e265b9 SW-796: fixed t_trigger_cancellation_service
897bd380 SW-796: fixed build dependency for t_ingestpipeline
469e29cd SW-796: Set default port to the one in production.
2c551559 SW-795: Change timeout because its too short for the tests running on the buildhost.
47a70ce8 SW-795: Change timeout to match tested timeout

SW-786: do not handle a PostgresDBQueryExecutionError silently in the RADB, but let the exception bubble upwards. Adapted t_radb_functionality.py tests. Should check resource_assigner and it's tests as well.

SW-658: fixed test: radb enforces now to schedule an observation via prescheduled. Cannot do a direct approved->scheduled status transition anymore

SW-426: use common radb test class. Adapted t_schedulers to use real test-radb-intances instead of a fake/stubbed/mocked radb reimplementation. The t_schedulers tests are actually integration tests and depend heavily on correct radb behaviour.

Story LSRT-60: Fixed a bug in Responsive Telescope where some observations go to conflict incorrectly.

Task LSRT-15: Tasks without a mom id are now seen as non killable and does not cause an exception. Reservations and maintenance tasks do not have a mom id.

Task #11049: Added more tests and comments. Throw exception if an unknown resource group is specified.

Task #9893: RA now also puts notification message on bus in case of task in conflict state. Unit tests all working again. Dwelling functionality enabled in RA.

Task #11020: first attempt to mock out RADB and implement unit tests. Too much to do to finish this task in sprint 10.

Task #10780: Added Jan David's implementation of the schedulers to the project and set up part of its unit test skeleton