[#234] Change keyword that server checks for a tester user (#244)

* basic search/replace of Tester with iwt, including schema doc

* 234 Black formatting for test_appuser.py

* #234 simplify prefixes list to just "iwt", document case insensitivity

* #234 actually fixing the "iwt-d" test, this time

* #234 changed is_tester logic to tokenize and check for 'iwt' regardless of case

* Add one more test

* Remove unused var

---------

Co-authored-by: Jimmi <jimmih@gmail.com>
Co-authored-by: Francis Li <mail@francisli.com>

home/tests/unit/api/test_appuser.py

@@ -9,9 +9,10 @@ def test_is_tester(self):
             ("Iwt A", True),
             ("Test B", False),
             ("iwt c", True),
+            ("John Iwt", True),
             ("Iwterosa", False),
-            ("iwt-d", True),
-            ("Iwt_E", True),
+            ("iwt-d", False),
+            ("Iwt_E", False),
             ("iwtrata", False),
             ("iwt", True),
         ]

home/views/api/appuser.py

@@ -18,12 +18,13 @@
 from .utils import validate_request_json
 
 
-# Determines whether Account is tester account, based on name prefix
+# Determines whether Account is tester account, based on name in label
 def is_tester(name_field: str) -> bool:
-    possible_prefixes = ["iwt "]
-    return any(
-        [name_field.lower().startswith(prefix) for prefix in possible_prefixes]
-    )
+    parts = name_field.split(" ", 1)
+    for s in parts:
+        if "iwt" == s.lower():
+            return True
+    return False
 
 
 # Validates Account input data. Raises AssertionError if field is invalid.