added test

openlp/core/common/registry.py

@@ -151,6 +151,7 @@ class Registry(object):
                     if result:
                         results.append(result)
                 except TypeError:
+                    print("sdf")
                     # Who has called me can help in debugging
                     trace_error_handler(log)
                     log.exception('Exception for function %s', function)

scripts/jenkins_script.py

@@ -30,7 +30,7 @@
 """
 This script helps to trigger builds of branches. To use it you have to install the jenkins-webapi package:
 
-    pip3 isntall jenkins-webapi
+    pip3 install jenkins-webapi
 
 You probably want to create an alias. Add this to your ~/.bashrc file and then logout and login (to apply the alias):
 

tests/functional/openlp_core_common/test_registry.py

@@ -100,6 +100,20 @@ class TestRegistry(TestCase):
         # THEN: I expect then function to have been called and a return given
         self.assertEqual(return_value[0], 'function_2', 'A return value is provided and matches')
 
+    def remove_function_test(self):
+        """
+        Test the remove_function() method
+        """
+        # GIVEN: An existing registry register a function
+        Registry.create()
+        Registry().register_function('test1', self.dummy_function_1)
+
+        # WHEN: Remove the function.
+        Registry().remove_function('test1', self.dummy_function_1)
+
+        # THEN: The method should not be available.
+        assert not Registry().functions_list['test1'], 'The function should not be in the dict anymore.'
+
     def dummy_function_1(self):
         return "function_1"