Propagate debug argument for independent pipelines

Debug argument was not propagated for independent pipelines.
This cause the non-enqueue messages not reported for the change
when it is not enqueued due to the changes ahead violating
the pipeline requirements.

Propagating the debug argument when enqueueing the changes ahead
in the independent pipeline should solve this issue.

Change-Id: Iaa81a682b9c84891fb354d68f4cbba45a44f3a7a

tests/fakegerrit.py

@@ -724,6 +724,11 @@ class FakeGerritChange(object):
         self.data['open'] = False
         self.open = False
 
+    def unsetAbandoned(self):
+        self.data['status'] = 'NEW'
+        self.data['open'] = True
+        self.open = True
+
 
 class FakeGerritPoller(gerritconnection.GerritChecksPoller):
     """A Fake Gerrit poller for use in tests.

tests/fixtures/layouts/gerrit-pipeline-trigger-debug.yaml

@@ -1,10 +1,15 @@
 - pipeline:
     name: check
     manager: independent
+    require:
+      gerrit:
+        current-patchset: true
     trigger:
       gerrit:
         - event: patchset-created
           debug: true
+        - event: comment-added
+          comment: recheck
     success:
       gerrit:
         Verified: 1
@@ -19,6 +24,7 @@
     require:
       gerrit:
         open: true
+        current-patchset: true
     trigger:
       gerrit:
         - event: comment-added

tests/unit/test_gerrit.py

@@ -532,6 +532,21 @@ class TestGerritWeb(ZuulTestCase):
         self.assertIn('does not match pipeline requirement',
                       B.messages[0])
 
+        # Test that we get debug info for a pipeline debug trigger
+        # when a change depends on a change missing a pipeline requirement
+        B.unsetAbandoned()
+        B.addPatchset()
+        self.fake_gerrit.addEvent(B.getChangeCommentEvent(1, 'recheck'))
+        self.waitUntilSettled()
+        A.addPatchset()
+        self.fake_gerrit.addEvent(A.getPatchsetCreatedEvent(2))
+        self.waitUntilSettled()
+        self.assertEqual(B.data['status'], 'NEW')
+        self.assertEqual(A.data['status'], 'NEW')
+        self.assertEqual(A.reported, 3)
+        self.assertIn('does not match pipeline requirement',
+                      A.messages[2])
+
         # Test that we get debug info for a pipeline debug trigger
         # when a change is missing a merge requirement
         C = self.fake_gerrit.addFakeChange('org/project', 'master', 'C')

zuul/manager/independent.py

@@ -77,6 +77,7 @@ class IndependentPipelineManager(PipelineManager):
                                    change_queue=change_queue,
                                    history=history,
                                    dependency_graph=dependency_graph,
+                                   debug=debug,
                                    warnings=warnings)
                 if not r:
                     return False