TST: Add regression tests for enlarging MultiIndex with None keys (GH#59153)

wdyy20041223 · wdyy20041223 · commit 93cf66c7057d · 2025-11-07T10:16:58.000+08:00
diff --git a/pandas/tests/indexing/multiindex/test_setitem.py b/pandas/tests/indexing/multiindex/test_setitem.py
@@ -509,6 +509,7 @@ def test_setitem_enlargement_multiindex_with_none(self):
             [[0, 6], [1, 5], [2, 4], [3, 7], [12, 13]],
             index=expected_index,
             columns=[0, 1],
+            dtype=float,
         )
         tm.assert_frame_equal(df, expected)
 
@@ -542,6 +543,7 @@ def test_setitem_enlargement_multiindex_multiple_none(self):
             [[1, 2], [3, 4], [5, 6], [7, 8]],
             index=expected_index,
             columns=["x", "y"],
+            dtype=float,
         )
         tm.assert_frame_equal(df, expected)
 

Original file line number	Diff line number	Diff line change
`@@ -509,6 +509,7 @@ def test_setitem_enlargement_multiindex_with_none(self):`
`509`	`509`	`[[0, 6], [1, 5], [2, 4], [3, 7], [12, 13]],`
`510`	`510`	`index=expected_index,`
`511`	`511`	`columns=[0, 1],`
	`512`	`+ dtype=float,`
`512`	`513`	`)`
`513`	`514`	`tm.assert_frame_equal(df, expected)`
`514`	`515`
`@@ -542,6 +543,7 @@ def test_setitem_enlargement_multiindex_multiple_none(self):`
`542`	`543`	`[[1, 2], [3, 4], [5, 6], [7, 8]],`
`543`	`544`	`index=expected_index,`
`544`	`545`	`columns=["x", "y"],`
	`546`	`+ dtype=float,`
`545`	`547`	`)`
`546`	`548`	`tm.assert_frame_equal(df, expected)`
`547`	`549`