Add image child count for expected tags

This is hardcoded since the fixtures are not currently set up in a way that the number of ImageAnnotationLinks can be determined from the fixture

Author: knabar

components/tools/OmeroWeb/test/integration/test_tree.py

@@ -242,16 +242,17 @@ def expected_tags(user, tags):
             'id': tag.id.val,
             'value': tag.textValue.val,
             'ownerId': tag.details.owner.id.val,
-            'childCount': len(tag.linkedAnnotationList()),
             'permsCss': get_perms(user, tag, "TagAnnotation")
         }
         if tag.description is not None:
             t['description'] = tag.description.val
 
         if tag.ns is not None and tag.ns.val == NSINSIGHTTAGSET:
             t['set'] = True
+            t['childCount'] = len(tag.linkedAnnotationList())
         else:
             t['set'] = False
+            t['childCount'] = 2 if tag.textValue.val == 'TagA' else 0
         expected.append(t)
     return expected