From 1be7187abe8ab95b67a01baf596495351a1c4d4f Mon Sep 17 00:00:00 2001
From: Jerome Dockes <jerome@dockes.org>
Date: Fri, 17 Nov 2023 11:47:28 +0100
Subject: [PATCH] more tests

---
 skrub/_dataframe/tests/test_common.py | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 skrub/_dataframe/tests/test_common.py

diff --git a/skrub/_dataframe/tests/test_common.py b/skrub/_dataframe/tests/test_common.py
new file mode 100644
index 000000000..182a664e8
--- /dev/null
+++ b/skrub/_dataframe/tests/test_common.py
@@ -0,0 +1,11 @@
+from skrub._dataframe import skrubns, std, stdns
+
+
+def test_std(px):
+    df = px.DataFrame({"A": [1, 2]})
+    assert hasattr(std(df), "dataframe")
+    assert hasattr(stdns(df), "dataframe_from_columns")
+    ns = skrubns(df)
+    s = ns.make_series([1, 2], name="A")
+    assert hasattr(std(s), "column")
+    assert hasattr(stdns(s), "dataframe_from_columns")