Ajout type contrat

venv/lib/python3.12/site-packages/pandas/tests/extension/base/index.py

@@ -0,0 +1,20 @@
+"""
+Tests for Indexes backed by arbitrary ExtensionArrays.
+"""
+
+import pandas as pd
+
+
+class BaseIndexTests:
+    """Tests for Index object backed by an ExtensionArray"""
+
+    def test_index_from_array(self, data):
+        idx = pd.Index(data)
+        assert data.dtype == idx.dtype
+
+    def test_index_from_listlike_with_dtype(self, data):
+        idx = pd.Index(data, dtype=data.dtype)
+        assert idx.dtype == data.dtype
+
+        idx = pd.Index(list(data), dtype=data.dtype)
+        assert idx.dtype == data.dtype