test(python): Fix delta test merge (#18601)

pola-rs · Sep 7, 2024 · 9a256a3 · 9a256a3
1 parent 17cf78f
commit 9a256a3
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/py-polars/tests/unit/io/test_delta.py b/py-polars/tests/unit/io/test_delta.py
@@ -472,9 +472,8 @@ def test_write_delta_with_merge(tmp_path: Path) -> None:
     )
 
     assert isinstance(merger, TableMerger)
-    assert merger.predicate == "s.a = t.a"
-    assert merger.source_alias == "s"
-    assert merger.target_alias == "t"
+    assert merger._builder.source_alias == "s"
+    assert merger._builder.target_alias == "t"
 
     merger.when_matched_delete(predicate="t.a > 2").execute()