s+,test: implement #25 with accompanying test (#29)

surplus/surplus.py

@@ -862,6 +862,8 @@ def parse_query(behaviour: Behaviour) -> Result[Query]:
             split_query = behaviour.query.split(" ")
 
         for word in split_query:
+            word = word.strip(",").strip()
+
             if validator.is_valid(word):
                 portion_plus_code = word
 

test.py

@@ -121,6 +121,18 @@ tests: list[ContinuityTest] = [
             )
         ],
     ),
+    ContinuityTest(
+        query="8WWJ+4P, Singapore",  # a comma!
+        expected=[
+            (
+                "Temasek Polytechnic\n"
+                "21 Tampines Avenue 1\n"
+                "Tampines West\n"
+                "529757\n"
+                "Northeast, Singapore"
+            )
+        ],
+    ),
 ]