Default job properties to empty, not undefined.

tile_generator/config.py

@@ -55,7 +55,8 @@
 # ways depending on the package type. We normalize all these so that the rest of
 # the code can rely on a single format
 #
-# Normalize Jobs - Ensure that job type and template are set for every job
+# Normalize Jobs - Ensure that job type, template, and properties are set for
+# every job
 
 package_types = {
 	'app':               { 'flags': [ 'is_cf', 'requires_cf_cli', 'is_app' ] },
@@ -145,7 +146,8 @@ def normalize_jobs(self):
 			for job in release.get('jobs', []):
 				job['type'] = job.get('type', job['name'])
 				job['template'] = job.get('template', job['type'])
-
+				job['properties'] = job.get('properties', {})
+
 	def release_for_package(self, package):
 		release_name = package['name'] if package.get('is_bosh_release', False) else self['name']
 		release = self.release_by_name(release_name)

tile_generator/config_unittest.py

@@ -324,6 +324,17 @@ def test_purge_service_broker_is_overridden(self):
 		config.add_defaults()
 		self.assertFalse(config['purge_service_brokers'])
 
+	def test_normalize_jobs_default_job_properties(self):
+		config = Config({
+			'releases': [{
+				'jobs': [{
+					'name': 'my-job'
+				}]
+			}]
+		})
+		config.normalize_jobs()
+		self.assertEqual(config['releases'][0]['jobs'][0]['properties'], {})
+
 @mock.patch('os.path.getsize')
 class TestVMDiskSize(unittest.TestCase):
 	def test_min_vm_disk_size(self, mock_getsize):