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.venv/Lib/site-packages/pandas/tests/indexes/datetimes/test_ops.py

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+from datetime import datetime
+
+from dateutil.tz import tzlocal
+import pytest
+
+from pandas.compat import IS64
+
+from pandas import (
+    DatetimeIndex,
+    Index,
+    bdate_range,
+    date_range,
+)
+import pandas._testing as tm
+
+START, END = datetime(2009, 1, 1), datetime(2010, 1, 1)
+
+
+class TestDatetimeIndexOps:
+    @pytest.mark.parametrize(
+        "freq,expected",
+        [
+            ("A", "day"),
+            ("Q", "day"),
+            ("M", "day"),
+            ("D", "day"),
+            ("H", "hour"),
+            ("T", "minute"),
+            ("S", "second"),
+            ("L", "millisecond"),
+            ("U", "microsecond"),
+        ],
+    )
+    def test_resolution(self, request, tz_naive_fixture, freq, expected):
+        tz = tz_naive_fixture
+        if freq == "A" and not IS64 and isinstance(tz, tzlocal):
+            request.node.add_marker(
+                pytest.mark.xfail(reason="OverflowError inside tzlocal past 2038")
+            )
+
+        idx = date_range(start="2013-04-01", periods=30, freq=freq, tz=tz)
+        assert idx.resolution == expected
+
+    def test_infer_freq(self, freq_sample):
+        # GH 11018
+        idx = date_range("2011-01-01 09:00:00", freq=freq_sample, periods=10)
+        result = DatetimeIndex(idx.asi8, freq="infer")
+        tm.assert_index_equal(idx, result)
+        assert result.freq == freq_sample
+
+
+@pytest.mark.parametrize("freq", ["B", "C"])
+class TestBusinessDatetimeIndex:
+    @pytest.fixture
+    def rng(self, freq):
+        return bdate_range(START, END, freq=freq)
+
+    def test_comparison(self, rng):
+        d = rng[10]
+
+        comp = rng > d
+        assert comp[11]
+        assert not comp[9]
+
+    def test_copy(self, rng):
+        cp = rng.copy()
+        repr(cp)
+        tm.assert_index_equal(cp, rng)
+
+    def test_identical(self, rng):
+        t1 = rng.copy()
+        t2 = rng.copy()
+        assert t1.identical(t2)
+
+        # name
+        t1 = t1.rename("foo")
+        assert t1.equals(t2)
+        assert not t1.identical(t2)
+        t2 = t2.rename("foo")
+        assert t1.identical(t2)
+
+        # freq
+        t2v = Index(t2.values)
+        assert t1.equals(t2v)
+        assert not t1.identical(t2v)