diff --git a/ibis/backends/risingwave/tests/conftest.py b/ibis/backends/risingwave/tests/conftest.py
index 4054e80abf9f..3d6f1b785351 100644
--- a/ibis/backends/risingwave/tests/conftest.py
+++ b/ibis/backends/risingwave/tests/conftest.py
@@ -1,18 +1,5 @@
 from __future__ import annotations
 
-# Copyright 2015 Cloudera Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
 import os
 from typing import TYPE_CHECKING, Any
 
diff --git a/ibis/backends/risingwave/tests/test_client.py b/ibis/backends/risingwave/tests/test_client.py
index dfadea36233b..a5b461a9fced 100644
--- a/ibis/backends/risingwave/tests/test_client.py
+++ b/ibis/backends/risingwave/tests/test_client.py
@@ -1,16 +1,3 @@
-# Copyright 2015 Cloudera Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
 from __future__ import annotations
 
 import os
@@ -60,14 +47,13 @@ def test_simple_aggregate_execute(alltypes):
 
 
 def test_list_tables(con):
-    assert len(con.list_tables()) > 0
+    assert con.list_tables()
     assert len(con.list_tables(like="functional")) == 1
 
 
 def test_compile_toplevel(snapshot):
     t = ibis.table([("foo", "double")], name="t0")
 
-    # it works!
     expr = t.foo.sum()
     result = ibis.postgres.compile(expr)
     snapshot.assert_match(str(result), "out.sql")