Add test for checking inconsistencies for large series using Series.rmod (pandas-dev#50665)

* add test for rmod

* Remove pd.

Author: tabeak

pandas/tests/series/test_arithmetic.py

@@ -909,3 +909,11 @@ def test_series_varied_multiindex_alignment():
         ),
     )
     tm.assert_series_equal(result, expected)
+
+
+def test_rmod_consistent_large_series():
+    # GH 29602
+    result = Series([2] * 10001).rmod(-1)
+    expected = Series([1] * 10001)
+
+    tm.assert_series_equal(result, expected)