init

venv/lib/python3.12/site-packages/pandas/tests/indexes/timedeltas/methods/test_astype.py

@@ -0,0 +1,176 @@
+from datetime import timedelta
+
+import numpy as np
+import pytest
+
+import pandas as pd
+from pandas import (
+    Index,
+    NaT,
+    Timedelta,
+    TimedeltaIndex,
+    timedelta_range,
+)
+import pandas._testing as tm
+from pandas.core.arrays import TimedeltaArray
+
+
+class TestTimedeltaIndex:
+    def test_astype_object(self):
+        idx = timedelta_range(start="1 days", periods=4, freq="D", name="idx")
+        expected_list = [
+            Timedelta("1 days"),
+            Timedelta("2 days"),
+            Timedelta("3 days"),
+            Timedelta("4 days"),
+        ]
+        result = idx.astype(object)
+        expected = Index(expected_list, dtype=object, name="idx")
+        tm.assert_index_equal(result, expected)
+        assert idx.tolist() == expected_list
+
+    def test_astype_object_with_nat(self):
+        idx = TimedeltaIndex(
+            [timedelta(days=1), timedelta(days=2), NaT, timedelta(days=4)], name="idx"
+        )
+        expected_list = [
+            Timedelta("1 days"),
+            Timedelta("2 days"),
+            NaT,
+            Timedelta("4 days"),
+        ]
+        result = idx.astype(object)
+        expected = Index(expected_list, dtype=object, name="idx")
+        tm.assert_index_equal(result, expected)
+        assert idx.tolist() == expected_list
+
+    def test_astype(self):
+        # GH 13149, GH 13209
+        idx = TimedeltaIndex([1e14, "NaT", NaT, np.nan], name="idx")
+
+        result = idx.astype(object)
+        expected = Index(
+            [Timedelta("1 days 03:46:40")] + [NaT] * 3, dtype=object, name="idx"
+        )
+        tm.assert_index_equal(result, expected)
+
+        result = idx.astype(np.int64)
+        expected = Index(
+            [100000000000000] + [-9223372036854775808] * 3, dtype=np.int64, name="idx"
+        )
+        tm.assert_index_equal(result, expected)
+
+        result = idx.astype(str)
+        expected = Index([str(x) for x in idx], name="idx", dtype=object)
+        tm.assert_index_equal(result, expected)
+
+        rng = timedelta_range("1 days", periods=10)
+        result = rng.astype("i8")
+        tm.assert_index_equal(result, Index(rng.asi8))
+        tm.assert_numpy_array_equal(rng.asi8, result.values)
+
+    def test_astype_uint(self):
+        arr = timedelta_range("1h", periods=2)
+
+        with pytest.raises(TypeError, match=r"Do obj.astype\('int64'\)"):
+            arr.astype("uint64")
+        with pytest.raises(TypeError, match=r"Do obj.astype\('int64'\)"):
+            arr.astype("uint32")
+
+    def test_astype_timedelta64(self):
+        # GH 13149, GH 13209
+        idx = TimedeltaIndex([1e14, "NaT", NaT, np.nan])
+
+        msg = (
+            r"Cannot convert from timedelta64\[ns\] to timedelta64. "
+            "Supported resolutions are 's', 'ms', 'us', 'ns'"
+        )
+        with pytest.raises(ValueError, match=msg):
+            idx.astype("timedelta64")
+
+        result = idx.astype("timedelta64[ns]")
+        tm.assert_index_equal(result, idx)
+        assert result is not idx
+
+        result = idx.astype("timedelta64[ns]", copy=False)
+        tm.assert_index_equal(result, idx)
+        assert result is idx
+
+    def test_astype_to_td64d_raises(self, index_or_series):
+        # We don't support "D" reso
+        scalar = Timedelta(days=31)
+        td = index_or_series(
+            [scalar, scalar, scalar + timedelta(minutes=5, seconds=3), NaT],
+            dtype="m8[ns]",
+        )
+        msg = (
+            r"Cannot convert from timedelta64\[ns\] to timedelta64\[D\]. "
+            "Supported resolutions are 's', 'ms', 'us', 'ns'"
+        )
+        with pytest.raises(ValueError, match=msg):
+            td.astype("timedelta64[D]")
+
+    def test_astype_ms_to_s(self, index_or_series):
+        scalar = Timedelta(days=31)
+        td = index_or_series(
+            [scalar, scalar, scalar + timedelta(minutes=5, seconds=3), NaT],
+            dtype="m8[ns]",
+        )
+
+        exp_values = np.asarray(td).astype("m8[s]")
+        exp_tda = TimedeltaArray._simple_new(exp_values, dtype=exp_values.dtype)
+        expected = index_or_series(exp_tda)
+        assert expected.dtype == "m8[s]"
+        result = td.astype("timedelta64[s]")
+        tm.assert_equal(result, expected)
+
+    def test_astype_freq_conversion(self):
+        # pre-2.0 td64 astype converted to float64. now for supported units
+        #  (s, ms, us, ns) this converts to the requested dtype.
+        # This matches TDA and Series
+        tdi = timedelta_range("1 Day", periods=30)
+
+        res = tdi.astype("m8[s]")
+        exp_values = np.asarray(tdi).astype("m8[s]")
+        exp_tda = TimedeltaArray._simple_new(
+            exp_values, dtype=exp_values.dtype, freq=tdi.freq
+        )
+        expected = Index(exp_tda)
+        assert expected.dtype == "m8[s]"
+        tm.assert_index_equal(res, expected)
+
+        # check this matches Series and TimedeltaArray
+        res = tdi._data.astype("m8[s]")
+        tm.assert_equal(res, expected._values)
+
+        res = tdi.to_series().astype("m8[s]")
+        tm.assert_equal(res._values, expected._values._with_freq(None))
+
+    @pytest.mark.parametrize("dtype", [float, "datetime64", "datetime64[ns]"])
+    def test_astype_raises(self, dtype):
+        # GH 13149, GH 13209
+        idx = TimedeltaIndex([1e14, "NaT", NaT, np.nan])
+        msg = "Cannot cast TimedeltaIndex to dtype"
+        with pytest.raises(TypeError, match=msg):
+            idx.astype(dtype)
+
+    def test_astype_category(self):
+        obj = timedelta_range("1h", periods=2, freq="h")
+
+        result = obj.astype("category")
+        expected = pd.CategoricalIndex([Timedelta("1h"), Timedelta("2h")])
+        tm.assert_index_equal(result, expected)
+
+        result = obj._data.astype("category")
+        expected = expected.values
+        tm.assert_categorical_equal(result, expected)
+
+    def test_astype_array_fallback(self):
+        obj = timedelta_range("1h", periods=2)
+        result = obj.astype(bool)
+        expected = Index(np.array([True, True]))
+        tm.assert_index_equal(result, expected)
+
+        result = obj._data.astype(bool)
+        expected = np.array([True, True])
+        tm.assert_numpy_array_equal(result, expected)

venv/lib/python3.12/site-packages/pandas/tests/indexes/timedeltas/methods/test_factorize.py

@@ -0,0 +1,40 @@
+import numpy as np
+
+from pandas import (
+    TimedeltaIndex,
+    factorize,
+    timedelta_range,
+)
+import pandas._testing as tm
+
+
+class TestTimedeltaIndexFactorize:
+    def test_factorize(self):
+        idx1 = TimedeltaIndex(["1 day", "1 day", "2 day", "2 day", "3 day", "3 day"])
+
+        exp_arr = np.array([0, 0, 1, 1, 2, 2], dtype=np.intp)
+        exp_idx = TimedeltaIndex(["1 day", "2 day", "3 day"])
+
+        arr, idx = idx1.factorize()
+        tm.assert_numpy_array_equal(arr, exp_arr)
+        tm.assert_index_equal(idx, exp_idx)
+        assert idx.freq == exp_idx.freq
+
+        arr, idx = idx1.factorize(sort=True)
+        tm.assert_numpy_array_equal(arr, exp_arr)
+        tm.assert_index_equal(idx, exp_idx)
+        assert idx.freq == exp_idx.freq
+
+    def test_factorize_preserves_freq(self):
+        # GH#38120 freq should be preserved
+        idx3 = timedelta_range("1 day", periods=4, freq="s")
+        exp_arr = np.array([0, 1, 2, 3], dtype=np.intp)
+        arr, idx = idx3.factorize()
+        tm.assert_numpy_array_equal(arr, exp_arr)
+        tm.assert_index_equal(idx, idx3)
+        assert idx.freq == idx3.freq
+
+        arr, idx = factorize(idx3)
+        tm.assert_numpy_array_equal(arr, exp_arr)
+        tm.assert_index_equal(idx, idx3)
+        assert idx.freq == idx3.freq

venv/lib/python3.12/site-packages/pandas/tests/indexes/timedeltas/methods/test_fillna.py

@@ -0,0 +1,22 @@
+from pandas import (
+    Index,
+    NaT,
+    Timedelta,
+    TimedeltaIndex,
+)
+import pandas._testing as tm
+
+
+class TestFillNA:
+    def test_fillna_timedelta(self):
+        # GH#11343
+        idx = TimedeltaIndex(["1 day", NaT, "3 day"])
+
+        exp = TimedeltaIndex(["1 day", "2 day", "3 day"])
+        tm.assert_index_equal(idx.fillna(Timedelta("2 day")), exp)
+
+        exp = TimedeltaIndex(["1 day", "3 hour", "3 day"])
+        idx.fillna(Timedelta("3 hour"))
+
+        exp = Index([Timedelta("1 day"), "x", Timedelta("3 day")], dtype=object)
+        tm.assert_index_equal(idx.fillna("x"), exp)

venv/lib/python3.12/site-packages/pandas/tests/indexes/timedeltas/methods/test_insert.py

@@ -0,0 +1,145 @@
+from datetime import timedelta
+
+import numpy as np
+import pytest
+
+from pandas._libs import lib
+
+import pandas as pd
+from pandas import (
+    Index,
+    Timedelta,
+    TimedeltaIndex,
+    timedelta_range,
+)
+import pandas._testing as tm
+
+
+class TestTimedeltaIndexInsert:
+    def test_insert(self):
+        idx = TimedeltaIndex(["4day", "1day", "2day"], name="idx")
+
+        result = idx.insert(2, timedelta(days=5))
+        exp = TimedeltaIndex(["4day", "1day", "5day", "2day"], name="idx")
+        tm.assert_index_equal(result, exp)
+
+        # insertion of non-datetime should coerce to object index
+        result = idx.insert(1, "inserted")
+        expected = Index(
+            [Timedelta("4day"), "inserted", Timedelta("1day"), Timedelta("2day")],
+            name="idx",
+        )
+        assert not isinstance(result, TimedeltaIndex)
+        tm.assert_index_equal(result, expected)
+        assert result.name == expected.name
+
+        idx = timedelta_range("1day 00:00:01", periods=3, freq="s", name="idx")
+
+        # preserve freq
+        expected_0 = TimedeltaIndex(
+            ["1day", "1day 00:00:01", "1day 00:00:02", "1day 00:00:03"],
+            name="idx",
+            freq="s",
+        )
+        expected_3 = TimedeltaIndex(
+            ["1day 00:00:01", "1day 00:00:02", "1day 00:00:03", "1day 00:00:04"],
+            name="idx",
+            freq="s",
+        )
+
+        # reset freq to None
+        expected_1_nofreq = TimedeltaIndex(
+            ["1day 00:00:01", "1day 00:00:01", "1day 00:00:02", "1day 00:00:03"],
+            name="idx",
+            freq=None,
+        )
+        expected_3_nofreq = TimedeltaIndex(
+            ["1day 00:00:01", "1day 00:00:02", "1day 00:00:03", "1day 00:00:05"],
+            name="idx",
+            freq=None,
+        )
+
+        cases = [
+            (0, Timedelta("1day"), expected_0),
+            (-3, Timedelta("1day"), expected_0),
+            (3, Timedelta("1day 00:00:04"), expected_3),
+            (1, Timedelta("1day 00:00:01"), expected_1_nofreq),
+            (3, Timedelta("1day 00:00:05"), expected_3_nofreq),
+        ]
+
+        for n, d, expected in cases:
+            result = idx.insert(n, d)
+            tm.assert_index_equal(result, expected)
+            assert result.name == expected.name
+            assert result.freq == expected.freq
+
+    @pytest.mark.parametrize(
+        "null", [None, np.nan, np.timedelta64("NaT"), pd.NaT, pd.NA]
+    )
+    def test_insert_nat(self, null):
+        # GH 18295 (test missing)
+        idx = timedelta_range("1day", "3day")
+        result = idx.insert(1, null)
+        expected = TimedeltaIndex(["1day", pd.NaT, "2day", "3day"])
+        tm.assert_index_equal(result, expected)
+
+    def test_insert_invalid_na(self):
+        idx = TimedeltaIndex(["4day", "1day", "2day"], name="idx")
+
+        item = np.datetime64("NaT")
+        result = idx.insert(0, item)
+
+        expected = Index([item] + list(idx), dtype=object, name="idx")
+        tm.assert_index_equal(result, expected)
+
+        # Also works if we pass a different dt64nat object
+        item2 = np.datetime64("NaT")
+        result = idx.insert(0, item2)
+        tm.assert_index_equal(result, expected)
+
+    @pytest.mark.parametrize(
+        "item", [0, np.int64(0), np.float64(0), np.array(0), np.datetime64(456, "us")]
+    )
+    def test_insert_mismatched_types_raises(self, item):
+        # GH#33703 dont cast these to td64
+        tdi = TimedeltaIndex(["4day", "1day", "2day"], name="idx")
+
+        result = tdi.insert(1, item)
+
+        expected = Index(
+            [tdi[0], lib.item_from_zerodim(item)] + list(tdi[1:]),
+            dtype=object,
+            name="idx",
+        )
+        tm.assert_index_equal(result, expected)
+
+    def test_insert_castable_str(self):
+        idx = timedelta_range("1day", "3day")
+
+        result = idx.insert(0, "1 Day")
+
+        expected = TimedeltaIndex([idx[0]] + list(idx))
+        tm.assert_index_equal(result, expected)
+
+    def test_insert_non_castable_str(self):
+        idx = timedelta_range("1day", "3day")
+
+        result = idx.insert(0, "foo")
+
+        expected = Index(["foo"] + list(idx), dtype=object)
+        tm.assert_index_equal(result, expected)
+
+    def test_insert_empty(self):
+        # Corner case inserting with length zero doesn't raise IndexError
+        # GH#33573 for freq preservation
+        idx = timedelta_range("1 Day", periods=3)
+        td = idx[0]
+
+        result = idx[:0].insert(0, td)
+        assert result.freq == "D"
+
+        with pytest.raises(IndexError, match="loc must be an integer between"):
+            result = idx[:0].insert(1, td)
+
+        with pytest.raises(IndexError, match="loc must be an integer between"):
+            result = idx[:0].insert(-1, td)

venv/lib/python3.12/site-packages/pandas/tests/indexes/timedeltas/methods/test_repeat.py

@@ -0,0 +1,34 @@
+import numpy as np
+
+from pandas import (
+    TimedeltaIndex,
+    timedelta_range,
+)
+import pandas._testing as tm
+
+
+class TestRepeat:
+    def test_repeat(self):
+        index = timedelta_range("1 days", periods=2, freq="D")
+        exp = TimedeltaIndex(["1 days", "1 days", "2 days", "2 days"])
+        for res in [index.repeat(2), np.repeat(index, 2)]:
+            tm.assert_index_equal(res, exp)
+            assert res.freq is None
+
+        index = TimedeltaIndex(["1 days", "NaT", "3 days"])
+        exp = TimedeltaIndex(
+            [
+                "1 days",
+                "1 days",
+                "1 days",
+                "NaT",
+                "NaT",
+                "NaT",
+                "3 days",
+                "3 days",
+                "3 days",
+            ]
+        )
+        for res in [index.repeat(3), np.repeat(index, 3)]:
+            tm.assert_index_equal(res, exp)
+            assert res.freq is None

venv/lib/python3.12/site-packages/pandas/tests/indexes/timedeltas/methods/test_shift.py

@@ -0,0 +1,76 @@
+import pytest
+
+from pandas.errors import NullFrequencyError
+
+import pandas as pd
+from pandas import TimedeltaIndex
+import pandas._testing as tm
+
+
+class TestTimedeltaIndexShift:
+    # -------------------------------------------------------------
+    # TimedeltaIndex.shift is used by __add__/__sub__
+
+    def test_tdi_shift_empty(self):
+        # GH#9903
+        idx = TimedeltaIndex([], name="xxx")
+        tm.assert_index_equal(idx.shift(0, freq="h"), idx)
+        tm.assert_index_equal(idx.shift(3, freq="h"), idx)
+
+    def test_tdi_shift_hours(self):
+        # GH#9903
+        idx = TimedeltaIndex(["5 hours", "6 hours", "9 hours"], name="xxx")
+        tm.assert_index_equal(idx.shift(0, freq="h"), idx)
+        exp = TimedeltaIndex(["8 hours", "9 hours", "12 hours"], name="xxx")
+        tm.assert_index_equal(idx.shift(3, freq="h"), exp)
+        exp = TimedeltaIndex(["2 hours", "3 hours", "6 hours"], name="xxx")
+        tm.assert_index_equal(idx.shift(-3, freq="h"), exp)
+
+    def test_tdi_shift_minutes(self):
+        # GH#9903
+        idx = TimedeltaIndex(["5 hours", "6 hours", "9 hours"], name="xxx")
+        tm.assert_index_equal(idx.shift(0, freq="min"), idx)
+        exp = TimedeltaIndex(["05:03:00", "06:03:00", "9:03:00"], name="xxx")
+        tm.assert_index_equal(idx.shift(3, freq="min"), exp)
+        exp = TimedeltaIndex(["04:57:00", "05:57:00", "8:57:00"], name="xxx")
+        tm.assert_index_equal(idx.shift(-3, freq="min"), exp)
+
+    def test_tdi_shift_int(self):
+        # GH#8083
+        tdi = pd.to_timedelta(range(5), unit="d")
+        trange = tdi._with_freq("infer") + pd.offsets.Hour(1)
+        result = trange.shift(1)
+        expected = TimedeltaIndex(
+            [
+                "1 days 01:00:00",
+                "2 days 01:00:00",
+                "3 days 01:00:00",
+                "4 days 01:00:00",
+                "5 days 01:00:00",
+            ],
+            freq="D",
+        )
+        tm.assert_index_equal(result, expected)
+
+    def test_tdi_shift_nonstandard_freq(self):
+        # GH#8083
+        tdi = pd.to_timedelta(range(5), unit="d")
+        trange = tdi._with_freq("infer") + pd.offsets.Hour(1)
+        result = trange.shift(3, freq="2D 1s")
+        expected = TimedeltaIndex(
+            [
+                "6 days 01:00:03",
+                "7 days 01:00:03",
+                "8 days 01:00:03",
+                "9 days 01:00:03",
+                "10 days 01:00:03",
+            ],
+            freq="D",
+        )
+        tm.assert_index_equal(result, expected)
+
+    def test_shift_no_freq(self):
+        # GH#19147
+        tdi = TimedeltaIndex(["1 days 01:00:00", "2 days 01:00:00"], freq=None)
+        with pytest.raises(NullFrequencyError, match="Cannot shift with no freq"):
+            tdi.shift(2)