Update tests/data/test_optimization_indexset.py

Co-authored-by: Fridolin Glatter <[email protected]>

tests/data/test_optimization_indexset.py

@@ -112,7 +112,7 @@ def test_tabulate_indexsets(self, platform: ixmp4.Platform):
         expected = df_from_list(indexsets=[indexset_1])
         pdt.assert_frame_equal(
             expected,
-            platform.backend.optimization.indexsets.tabulate(name="Indexset 1"),
+            platform.backend.optimization.indexsets.tabulate(name=indexset_1.name),
         )
         # Test only indexsets belonging to this Run are tabulated if run_id is provided
         run_2 = platform.backend.runs.create("Model", "Scenario")