Valid email domains added and tests passing.

tests/app/main/test_validators.py

@@ -6,8 +6,43 @@ def test_should_raise_validation_error_for_password(app_, mock_get_user_by_email
     form = RegisterUserForm()
     form.name.data = 'test'
     form.email_address.data = 'teset@example.gov.uk'
-    form.mobile_number.data = '+441231231231'
+    form.mobile_number.data = '441231231231'
     form.password.data = 'password1234'
 
     form.validate()
     assert 'That password is blacklisted, too common' in form.errors['password']
+
+
+def test_valid_email_not_in_valid_domains(app_):
+    with app_.test_request_context():
+        form = RegisterUserForm(email_address="test@test.com", mobile_number='441231231231')
+        assert not form.validate()
+        assert "Enter a central government email address" in form.errors['email_address'][0]
+
+
+def test_valid_email_in_valid_domains(app_):
+    with app_.test_request_context():
+        form = RegisterUserForm(
+            name="test",
+            email_address="test@my.gov.uk",
+            mobile_number='4407888999111',
+            password='1234567890')
+        form.validate()
+        assert form.errors == {}
+
+
+def test_invalid_email_address_error_message(app_):
+    with app_.test_request_context():
+        form = RegisterUserForm(
+            name="test",
+            email_address="test.com",
+            mobile_number='4407888999111',
+            password='1234567890')
+        assert not form.validate()
+
+        form = RegisterUserForm(
+            name="test",
+            email_address="test.com",
+            mobile_number='4407888999111',
+            password='1234567890')
+        assert not form.validate()