Added 'dummy' entrypoint within watcher_strategies

This should make our 'dummy' strategy available for use.
I also removed all previously defined default goals, which means
that they will have to define it themselves from now on.
This can also be useful for future integration tests.

Change-Id: I6c43eba941022a88851a199b56a6c20f017b9e71
DocImpact
Closes-Bug: #1520178

watcher/tests/api/v1/test_audit_templates.py

@@ -379,7 +379,7 @@ class TestPost(api_base.FunctionalTest):
             wraps=self.dbapi.create_audit_template
         ) as cn_mock:
             audit_template_dict = api_utils.audit_template_post_data(
-                goal='SERVERS_CONSOLIDATION')
+                goal='DUMMY')
             response = self.post_json('/audit_templates', audit_template_dict)
             self.assertEqual(audit_template_dict['goal'],
                              response.json['goal'])

watcher/tests/api/v1/test_goals.py

@@ -20,6 +20,13 @@ class TestListGoal(api_base.FunctionalTest):
 
     def setUp(self):
         super(TestListGoal, self).setUp()
+        # Override the default to get enough goals to test limit on query
+        cfg.CONF.set_override(
+            "goals", {
+                "DUMMY_1": "dummy", "DUMMY_2": "dummy",
+                "DUMMY_3": "dummy", "DUMMY_4": "dummy",
+            },
+            group='watcher_goals')
 
     def _assert_goal_fields(self, goal):
         goal_fields = ['name', 'strategy']
@@ -53,11 +60,11 @@ class TestListGoal(api_base.FunctionalTest):
         self.assertEqual(len(CONF.watcher_goals.goals),
                          len(response['goals']))
 
-    def test_collection_links(self):
+    def test_goals_collection_links(self):
         response = self.get_json('/goals/?limit=2')
         self.assertEqual(2, len(response['goals']))
 
-    def test_collection_links_default_limit(self):
+    def test_goals_collection_links_default_limit(self):
         cfg.CONF.set_override('max_limit', 3, 'api')
         response = self.get_json('/goals')
         self.assertEqual(3, len(response['goals']))