test(duckdb): test multiple connections to named in-memory db (#9242)

ibis/backends/duckdb/tests/test_client.py

@@ -304,3 +304,19 @@ def test_settings_repr():
     view = repr(con.settings)
     assert "name" in view
     assert "value" in view
+
+
+def test_connect_named_in_memory_db():
+    con_named_db = ibis.duckdb.connect(":memory:mydb")
+
+    con_named_db.create_table("ork", schema=ibis.schema(dict(bork="int32")))
+    assert "ork" in con_named_db.list_tables()
+
+    con_named_db_2 = ibis.duckdb.connect(":memory:mydb")
+    assert "ork" in con_named_db_2.list_tables()
+
+    unnamed_memory_db = ibis.duckdb.connect(":memory:")
+    assert "ork" not in unnamed_memory_db.list_tables()
+
+    default_memory_db = ibis.duckdb.connect()
+    assert "ork" not in default_memory_db.list_tables()