Add a schema to validate a single user attr 'strictly'

tests/app/test_schemas.py

@@ -1,3 +1,6 @@
+import pytest
+
+
 def test_job_schema_doesnt_return_notifications(sample_notification_with_job):
     from app.schemas import job_schema
 
@@ -22,3 +25,34 @@ def test_notification_schema_adds_api_key_name(sample_notification_with_api_key)
 
     data = notification_with_template_schema.dump(sample_notification_with_api_key).data
     assert data['key_name'] == 'Test key'
+
+
+@pytest.mark.parametrize('user_attribute, user_value', [
+    ('name', 'New User'),
+    ('email_address', 'newuser@mail.com'),
+    ('mobile_number', '+4407700900460')
+])
+def test_user_schema_accepts_valid_attributes(user_attribute, user_value):
+    update_dict = {
+        user_attribute: user_value
+    }
+    from app.schemas import user_update_schema_load_json
+
+    data, errors = user_update_schema_load_json.load(update_dict)
+    assert not errors
+
+
+@pytest.mark.parametrize('user_attribute, user_value', [
+    ('name', None),
+    ('name', ''),
+    ('email_address', 'bademail@...com'),
+    ('mobile_number', '+44077009')
+])
+def test_user_schema_rejects_invalid_attributes(user_attribute, user_value):
+    from app.schemas import user_update_schema_load_json
+    update_dict = {
+        user_attribute: user_value
+    }
+
+    with pytest.raises(Exception):
+        data, errors = user_update_schema_load_json.load(update_dict)