TST: Add test for pd.read_csv date parsing not working with dtype_backend="pyarrow" and missing values (#60286)

* add test func

* remove io since StringIO is already imported

* add td.skip_if_no("pyarrow") from CI errors

* fix test

* improve expect_data; remove assert on "date" column dtype

Author: KevsterAmp

pandas/tests/io/test_common.py

@@ -671,3 +671,17 @@ def test_pickle_reader(reader):
     # GH 22265
     with BytesIO() as buffer:
         pickle.dump(reader, buffer)
+
+
+@td.skip_if_no("pyarrow")
+def test_pyarrow_read_csv_datetime_dtype():
+    # GH 59904
+    data = '"date"\n"20/12/2025"\n""\n"31/12/2020"'
+    result = pd.read_csv(
+        StringIO(data), parse_dates=["date"], dayfirst=True, dtype_backend="pyarrow"
+    )
+
+    expect_data = pd.to_datetime(["20/12/2025", pd.NaT, "31/12/2020"], dayfirst=True)
+    expect = pd.DataFrame({"date": expect_data})
+
+    tm.assert_frame_equal(expect, result)