test(mssql): add snapshot for rank with no frame

Author: IndexSeek

ibis/backends/mssql/tests/snapshots/test_window/test_rank_no_window_frame/out.sql

@@ -0,0 +1,5 @@
+SELECT
+  [t0].[color],
+  [t0].[price],
+  RANK() OVER (PARTITION BY [t0].[color] ORDER BY CASE WHEN [t0].[price] IS NULL THEN 1 ELSE 0 END, [t0].[price] ASC) - 1 AS [MinRank()]
+FROM [diamonds_sample] AS [t0]

ibis/backends/mssql/tests/test_window.py

@@ -0,0 +1,11 @@
+from __future__ import annotations
+
+import ibis
+
+
+def test_rank_no_window_frame(con, snapshot):
+    t = ibis.table(schema=dict(color=str, price=int), name="diamonds_sample")
+    expr = t.mutate(ibis.rank().over(group_by="color", order_by="price"))
+    sql = ibis.to_sql(expr, dialect="mssql")
+
+    snapshot.assert_match(sql, "out.sql")