def test_ensure_datetime64ns_bigendian():
# GH#29684
arr = np.array([np.datetime64(1, "ms")], dtype=">M8[ms]")
result = conversion.ensure_datetime64ns(arr)
expected = np.array([np.datetime64(1, "ms")], dtype="M8[ns]")
tm.assert_numpy_array_equal(result, expected)
def test_length_zero_copy(self, dtype, copy):
arr = np.array([], dtype=dtype)
result = conversion.ensure_datetime64ns(arr, copy=copy)
if copy:
assert result.base is None
else:
assert result.base is arr
def test_length_zero_copy(self, dtype, copy):
arr = np.array([], dtype=dtype)
result = conversion.ensure_datetime64ns(arr, copy=copy)
if copy:
assert result.base is None
else:
assert result.base is arr
def test_length_zero_copy(dtype, copy):
arr = np.array([], dtype=dtype)
result = conversion.ensure_datetime64ns(arr, copy=copy)
if copy:
assert not np.shares_memory(result, arr)
else:
if arr.dtype == result.dtype:
assert result is arr
else:
assert not np.shares_memory(result, arr)
def test_length_zero_copy(dtype, copy):
arr = np.array([], dtype=dtype)
result = conversion.ensure_datetime64ns(arr, copy=copy)
assert result.base is (None if copy else arr)
def test_index_cast_datetime64_other_units(self):
arr = np.arange(0, 100, 10, dtype=np.int64).view("M8[D]")
idx = Index(arr)
assert (idx.values == conversion.ensure_datetime64ns(arr)).all()
def test_index_cast_datetime64_other_units(self):
arr = np.arange(0, 100, 10, dtype=np.int64).view('M8[D]')
idx = Index(arr)
assert (idx.values == conversion.ensure_datetime64ns(arr)).all()
def test_length_zero_copy(dtype, copy):
arr = np.array([], dtype=dtype)
result = conversion.ensure_datetime64ns(arr, copy=copy)
assert result.base is (None if copy else arr)
