Ajout type contrat

venv/lib/python3.12/site-packages/pandas/tests/indexing/test_iat.py

@@ -0,0 +1,30 @@
+import numpy as np
+
+from pandas import (
+    DataFrame,
+    Series,
+    period_range,
+)
+
+
+def test_iat(float_frame):
+    for i, row in enumerate(float_frame.index):
+        for j, col in enumerate(float_frame.columns):
+            result = float_frame.iat[i, j]
+            expected = float_frame.at[row, col]
+            assert result == expected
+
+
+def test_iat_duplicate_columns():
+    # https://github.com/pandas-dev/pandas/issues/11754
+    df = DataFrame([[1, 2]], columns=["x", "x"])
+    assert df.iat[0, 0] == 1
+
+
+def test_iat_getitem_series_with_period_index():
+    # GH#4390, iat incorrectly indexing
+    index = period_range("1/1/2001", periods=10)
+    ser = Series(np.random.default_rng(2).standard_normal(10), index=index)
+    expected = ser[index[0]]
+    result = ser.iat[0]
+    assert expected == result