fix functions.Function not passing down kwargs during sql generation …

…of function

pypika/terms.py

@@ -2,7 +2,7 @@
 import json
 import re
 import uuid
-from datetime import date, time, datetime
+from datetime import date, datetime, time
 from enum import Enum
 from typing import (
     TYPE_CHECKING,
@@ -1429,7 +1429,7 @@ def get_sql(self, **kwargs: Any) -> str:
 
         # FIXME escape
         function_sql = self.get_function_sql(
-            with_namespace=with_namespace, quote_char=quote_char, dialect=dialect
+            with_namespace=with_namespace, quote_char=quote_char, dialect=dialect, **kwargs
         )
 
         if self.schema is not None:

tests/test_parameter.py

@@ -11,7 +11,8 @@
     Query,
     Tables,
 )
-from pypika.terms import ListParameter, ParameterValueWrapper
+from pypika.functions import Upper
+from pypika.terms import ListParameter, ParameterValueWrapper, ValueWrapper
 
 
 class ParametrizedTests(unittest.TestCase):
@@ -212,3 +213,15 @@ def test_pyformat_parameter(self):
             'INSERT INTO "abc" ("a","b","c") VALUES (%(param1)s,%(param2)s,%(param3)s)', sql
         )
         self.assertEqual({"param1": 1, "param2": 2.2, "param3": "foo"}, parameter.get_parameters())
+
+    def test_function_parameter(self):
+        q = (
+            Query.from_(self.table_abc)
+            .select("*")
+            .where(self.table_abc.category == Upper(ValueWrapper("foobar")))
+        )
+        p = ListParameter("%s")
+        sql = q.get_sql(parameter=p)
+        self.assertEqual('SELECT * FROM "abc" WHERE "category"=UPPER(%s)', sql)
+
+        self.assertEqual(["foobar"], p.get_parameters())