Merge pull request #407 from alphagov/fix_uppercase_white_list_bug

Fix issue with uppercase in the domain name.

app/main/validators.py

@@ -36,5 +36,5 @@ class ValidEmailDomainRegex(object):
                 "https://docs.google.com/forms/d/1AL8U-xJX_HAFEiQiJszGQw0PcEaEUnYATSntEghNDGo/viewform")
         valid_domains = current_app.config.get('EMAIL_DOMAIN_REGEXES', [])
         email_regex = "[^\@^\s]+@([^@^\\.^\\s]+\.)*({})$".format("|".join(valid_domains))
-        if not re.match(email_regex, field.data):
+        if not re.match(email_regex, field.data.lower()):
             raise ValidationError(message)

tests/app/main/test_validators.py

@@ -57,6 +57,8 @@ def _gen_mock_field(x):
 
 @pytest.mark.parametrize("email", [
     'test@gov.uk',
+    'test@GOV.UK',
+    'test@gov.uK',
     'test@test.test.gov.uk',
     'test@test.gov.uk',
     'test@mod.uk',
@@ -71,7 +73,8 @@ def _gen_mock_field(x):
     'test@nhs.net',
     'test@gov.nhs.net',
     'test@police.uk',
-    'test@gov.police.uk'
+    'test@gov.police.uk',
+    'test@GOV.PoliCe.uk',
 ])
 def test_valid_list_of_white_list_email_domains(app_, email):
     with app_.test_request_context():