test Function(?:Element)._bind_param() with in_()

Fixed 1.4 regression where the :meth:`_functions.Function.in_` method was
not covered by tests and failed to function properly in all cases.

Fixes: #5934
Change-Id: I93423a296e391aabd5594cb670d36b91ced0231d

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/sqlalchemy/sql/functions.py b/lib/sqlalchemy/sql/functions.py
index 78f7ead2e..641715327 100644
--- a/lib/sqlalchemy/sql/functions.py
+++ b/lib/sqlalchemy/sql/functions.py
@@ -595,7 +595,7 @@ class FunctionElement(Executable, ColumnElement, FromClause, Generative):
         """
         return self.select().execute()
 
-    def _bind_param(self, operator, obj, type_=None):
+    def _bind_param(self, operator, obj, type_=None, **kw):
         return BindParameter(
             None,
             obj,
@@ -603,6 +603,7 @@ class FunctionElement(Executable, ColumnElement, FromClause, Generative):
             _compared_to_type=self.type,
             unique=True,
             type_=type_,
+            **kw
         )
 
     def self_group(self, against=None):
@@ -887,7 +888,7 @@ class Function(FunctionElement):
             )
             return kw["bind"]
 
-    def _bind_param(self, operator, obj, type_=None):
+    def _bind_param(self, operator, obj, type_=None, **kw):
         return BindParameter(
             self.name,
             obj,
@@ -895,6 +896,7 @@ class Function(FunctionElement):
             _compared_to_type=self.type,
             type_=type_,
             unique=True,
+            **kw
         )