Test for condition where email_service.add_email raises an exception.

tests/emails/test_email_service.py

@@ -3,6 +3,7 @@ from tests.base_test import BaseTest
 from crc import session
 from crc.models.email import EmailModel
 from crc.services.email_service import EmailService
+from unittest.mock import patch
 
 
 class TestEmailService(BaseTest):
@@ -10,7 +11,6 @@ class TestEmailService(BaseTest):
     def test_add_email(self):
         self.load_example_data()
         study = self.create_study()
-        workflow = self.create_workflow('random_fact')
 
         subject = 'Email Subject'
         sender = 'sender@sartography.com'
@@ -42,3 +42,25 @@ class TestEmailService(BaseTest):
         self.assertEqual(email_model.content, content)
         self.assertEqual(email_model.content_html, content_html)
         self.assertEqual(email_model.study, None)
+
+    @patch('crc.services.email_service.EmailService.add_email')
+    def test_add_email_with_error(self, mock_response):
+
+        self.load_example_data()
+        mock_response.return_value.ok = True
+        mock_response.side_effect = Exception("This is my exception!")
+
+        study = self.create_study()
+
+        subject = 'Email Subject'
+        sender = 'sender@sartography.com'
+        recipients = ['recipient@sartography.com', 'back@sartography.com']
+        content = 'Content for this email'
+        content_html = '<p>Hypertext Markup Language content for this email</p>'
+
+        # Make sure we generate an error
+        with self.assertRaises(Exception) as e:
+            EmailService.add_email(subject=subject, sender=sender, recipients=recipients,
+                                   content=content, content_html=content_html, study_id=study.id)
+        # Make sure it's the error we want
+        self.assertEqual('This is my exception!', e.exception.args[0])