def test_ByteMaskedArray_NumpyArray():
    v1a = ak.layout.ByteMaskedArray(
        ak.layout.Index8(np.array([1, 0, 1, 0, 1], dtype=np.int8)),
        ak.layout.NumpyArray(np.array([1.1, 2.2, 3.3, 4.4, 5.5, 6.6])),
        valid_when=True,
    )
    v2a = ak._v2.contents.bytemaskedarray.ByteMaskedArray(
        ak._v2.index.Index(np.array([1, 0, 1, 0, 1], dtype=np.int8)),
        ak._v2.contents.numpyarray.NumpyArray(np.array([1.1, 2.2, 3.3, 4.4, 5.5, 6.6])),
        valid_when=True,
    )
    assert v1v2_equal(v1a, v2a)
    assert v1v2_equal(v2_to_v1(v2a), v1_to_v2(v1a))
    assert ak.to_list(v1a) == ak.to_list(v2a)
    assert newform(json.loads(v1a.form.tojson())) == v2a.form.tolist()

    v1b = ak.layout.ByteMaskedArray(
        ak.layout.Index8(np.array([0, 1, 0, 1, 0], dtype=np.int8)),
        ak.layout.NumpyArray(np.array([1.1, 2.2, 3.3, 4.4, 5.5, 6.6])),
        valid_when=False,
    )
    v2b = ak._v2.contents.bytemaskedarray.ByteMaskedArray(
        ak._v2.index.Index(np.array([0, 1, 0, 1, 0], dtype=np.int8)),
        ak._v2.contents.numpyarray.NumpyArray(np.array([1.1, 2.2, 3.3, 4.4, 5.5, 6.6])),
        valid_when=False,
    )
    assert v1v2_equal(v1b, v2b)
    assert v1v2_equal(v2_to_v1(v2b), v1_to_v2(v1b))
    assert ak.to_list(v1b) == ak.to_list(v2b)
    assert newform(json.loads(v1b.form.tojson())) == v2b.form.tolist()
def test_RecordArray_NumpyArray():
    v1a = ak.layout.RecordArray(
        [
            ak.layout.NumpyArray(np.array([0, 1, 2, 3, 4], dtype=np.int64)),
            ak.layout.NumpyArray(np.array([0.0, 1.1, 2.2, 3.3, 4.4, 5.5])),
        ],
        ["x", "y"],
    )
    v2a = ak._v2.contents.recordarray.RecordArray(
        [
            ak._v2.contents.numpyarray.NumpyArray(
                np.array([0, 1, 2, 3, 4], dtype=np.int64)
            ),
            ak._v2.contents.numpyarray.NumpyArray(
                np.array([0.0, 1.1, 2.2, 3.3, 4.4, 5.5])
            ),
        ],
        ["x", "y"],
    )
    assert v1v2_equal(v1a, v2a)
    assert v1v2_equal(v2_to_v1(v2a), v1_to_v2(v1a))
    assert ak.to_list(v1a) == ak.to_list(v2a)
    assert newform(json.loads(v1a.form.tojson())) == v2a.form.tolist()

    v1b = ak.layout.RecordArray(
        [
            ak.layout.NumpyArray(np.array([0, 1, 2, 3, 4], dtype=np.int64)),
            ak.layout.NumpyArray(np.array([0.0, 1.1, 2.2, 3.3, 4.4, 5.5])),
        ],
        None,
    )
    v2b = ak._v2.contents.recordarray.RecordArray(
        [
            ak._v2.contents.numpyarray.NumpyArray(
                np.array([0, 1, 2, 3, 4], dtype=np.int64)
            ),
            ak._v2.contents.numpyarray.NumpyArray(
                np.array([0.0, 1.1, 2.2, 3.3, 4.4, 5.5])
            ),
        ],
        None,
    )
    assert v1v2_equal(v1b, v2b)
    assert v1v2_equal(v2_to_v1(v2b), v1_to_v2(v1b))
    assert ak.to_list(v1b) == ak.to_list(v2b)
    assert newform(json.loads(v1b.form.tojson())) == v2b.form.tolist()

    v1c = ak.layout.RecordArray([], [], 10)
    v2c = ak._v2.contents.recordarray.RecordArray([], [], 10)
    assert v1v2_equal(v1c, v2c)
    assert v1v2_equal(v2_to_v1(v2c), v1_to_v2(v1c))
    assert ak.to_list(v1c) == ak.to_list(v2c)
    assert newform(json.loads(v1c.form.tojson())) == v2c.form.tolist()

    v1d = ak.layout.RecordArray([], None, 10)
    v2d = ak._v2.contents.recordarray.RecordArray([], None, 10)
    assert v1v2_equal(v1d, v2d)
    assert v1v2_equal(v2_to_v1(v2d), v1_to_v2(v1d))
    assert ak.to_list(v1d) == ak.to_list(v2d)
    assert newform(json.loads(v1c.form.tojson())) == v2c.form.tolist()
def test_reshaping():
    v2 = ak._v2.contents.NumpyArray(
        np.array([0.0, 1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7, 8.8, 9.9]))
    v1 = ak.layout.NumpyArray(
        np.array([0.0, 1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7, 8.8, 9.9]))

    resultv2 = v2[ak._v2.contents.NumpyArray(
        np.array([3, 6, 9, 2, 2, 1], np.int64))]
    resultv1 = v1[ak.layout.NumpyArray(np.array([3, 6, 9, 2, 2, 1], np.int64))]
    assert ak.to_list(resultv2) == [3.3, 6.6, 9.9, 2.2, 2.2, 1.1]
    assert ak.to_list(resultv1) == [3.3, 6.6, 9.9, 2.2, 2.2, 1.1]

    resultv2 = v2[ak._v2.contents.NumpyArray(
        np.array([[3, 6, 9], [2, 2, 1]], np.int64))]
    resultv1 = v1[ak.layout.NumpyArray(
        np.array([[3, 6, 9], [2, 2, 1]], np.int64))]
    assert ak.to_list(resultv2) == [[3.3, 6.6, 9.9], [2.2, 2.2, 1.1]]
    assert ak.to_list(resultv1) == [[3.3, 6.6, 9.9], [2.2, 2.2, 1.1]]

    assert (str(
        ak.type(
            ak.Array(
                v2_to_v1(v2[ak._v2.contents.NumpyArray(
                    np.ones((2, 3), np.int64))])))) == "2 * 3 * float64")
    assert (str(
        ak.type(ak.Array(v1[ak.layout.NumpyArray(np.ones(
            (2, 3), np.int64))]))) == "2 * 3 * float64")

    assert (str(
        ak.type(
            ak.Array(
                v2_to_v1(v2[ak._v2.contents.NumpyArray(
                    np.ones((0, 3), np.int64))])))) == "0 * 3 * float64")
    assert (str(
        ak.type(ak.Array(v1[ak.layout.NumpyArray(np.ones(
            (0, 3), np.int64))]))) == "0 * 3 * float64")

    assert (str(
        ak.type(
            ak.Array(
                v2_to_v1(v2[ak._v2.contents.NumpyArray(
                    np.ones((2, 0, 3),
                            np.int64))])))) == "2 * 0 * 3 * float64")
    assert (str(
        ak.type(
            ak.Array(v1[ak.layout.NumpyArray(np.ones(
                (2, 0, 3), np.int64))]))) == "2 * 0 * 3 * float64")

    assert (str(
        ak.type(
            ak.Array(
                v2_to_v1(v2[ak._v2.contents.NumpyArray(
                    np.ones((1, 2, 0, 3),
                            np.int64))])))) == "1 * 2 * 0 * 3 * float64")
    assert (str(
        ak.type(
            ak.Array(v1[ak.layout.NumpyArray(np.ones(
                (1, 2, 0, 3), np.int64))]))) == "1 * 2 * 0 * 3 * float64")
def test_NumpyArray():
    v1a = ak.layout.NumpyArray(np.array([0.0, 1.1, 2.2, 3.3]))
    v2a = ak._v2.contents.numpyarray.NumpyArray(np.array([0.0, 1.1, 2.2, 3.3]))
    assert v1v2_equal(v1a, v2a)
    assert v1v2_equal(v2_to_v1(v2a), v1_to_v2(v1a))
    assert ak.to_list(v1a) == ak.to_list(v2a)
    assert newform(json.loads(v1a.form.tojson())) == v2a.form.tolist()

    v1b = ak.layout.NumpyArray(np.arange(2 * 3 * 5, dtype=np.int64).reshape(2, 3, 5))
    v2b = ak._v2.contents.numpyarray.NumpyArray(
        np.arange(2 * 3 * 5, dtype=np.int64).reshape(2, 3, 5)
    )
    assert v1v2_equal(v1b, v2b)
    assert v1v2_equal(v2_to_v1(v2b), v1_to_v2(v1b))
    assert ak.to_list(v1b) == ak.to_list(v2b)
    assert newform(json.loads(v1b.form.tojson())) == v2b.form.tolist()
def test_ListArray_RecordArray_NumpyArray():
    v1a = ak.layout.ListArray64(
        ak.layout.Index64(np.array([4, 100, 1], dtype=np.int64)),
        ak.layout.Index64(np.array([7, 100, 3, 200], dtype=np.int64)),
        ak.layout.RecordArray(
            [ak.layout.NumpyArray(np.array([6.6, 4.4, 5.5, 7.7, 1.1, 2.2, 3.3, 8.8]))],
            ["nest"],
        ),
    )
    v2a = ak._v2.contents.listarray.ListArray(
        ak._v2.index.Index(np.array([4, 100, 1], dtype=np.int64)),
        ak._v2.index.Index(np.array([7, 100, 3, 200], dtype=np.int64)),
        ak._v2.contents.recordarray.RecordArray(
            [
                ak._v2.contents.numpyarray.NumpyArray(
                    np.array([6.6, 4.4, 5.5, 7.7, 1.1, 2.2, 3.3, 8.8])
                )
            ],
            ["nest"],
        ),
    )
    assert v1v2_equal(v1a, v2a)
    assert v1v2_equal(v2_to_v1(v2a), v1_to_v2(v1a))
    assert ak.to_list(v1a) == ak.to_list(v2a)
    assert newform(json.loads(v1a.form.tojson())) == v2a.form.tolist()
def test_EmptyArray():
    v1a = ak.layout.EmptyArray()
    v2a = ak._v2.contents.emptyarray.EmptyArray()
    assert v1v2_equal(v1a, v2a)
    assert v1v2_equal(v2_to_v1(v2a), v1_to_v2(v1a))
    assert ak.to_list(v1a) == ak.to_list(v2a)
    assert newform(json.loads(v1a.form.tojson())) == v2a.form.tolist()
def test_UnmaskedArray_NumpyArray():
    v1a = ak.layout.UnmaskedArray(ak.layout.NumpyArray(np.array([0.0, 1.1, 2.2, 3.3])))
    v2a = ak._v2.contents.unmaskedarray.UnmaskedArray(
        ak._v2.contents.numpyarray.NumpyArray(np.array([0.0, 1.1, 2.2, 3.3]))
    )
    assert v1v2_equal(v1a, v2a)
    assert v1v2_equal(v2_to_v1(v2a), v1_to_v2(v1a))
    assert ak.to_list(v1a) == ak.to_list(v2a)
    assert newform(json.loads(v1a.form.tojson())) == v2a.form.tolist()
def test_RegularArray_RecordArray_NumpyArray():
    v1a = ak.layout.RegularArray(
        ak.layout.RecordArray(
            [ak.layout.NumpyArray(np.array([0.0, 1.1, 2.2, 3.3, 4.4, 5.5, 6.6]))],
            ["nest"],
        ),
        3,
    )
    v2a = ak._v2.contents.regulararray.RegularArray(
        ak._v2.contents.recordarray.RecordArray(
            [
                ak._v2.contents.numpyarray.NumpyArray(
                    np.array([0.0, 1.1, 2.2, 3.3, 4.4, 5.5, 6.6])
                )
            ],
            ["nest"],
        ),
        3,
    )
    assert v1v2_equal(v1a, v2a)
    assert v1v2_equal(v2_to_v1(v2a), v1_to_v2(v1a))
    assert ak.to_list(v1a) == ak.to_list(v2a)
    assert newform(json.loads(v1a.form.tojson())) == v2a.form.tolist()

    v1b = ak.layout.RegularArray(
        ak.layout.RecordArray([ak.layout.EmptyArray()], ["nest"]),
        0,
        zeros_length=10,
    )
    v2b = ak._v2.contents.regulararray.RegularArray(
        ak._v2.contents.recordarray.RecordArray(
            [ak._v2.contents.emptyarray.EmptyArray()], ["nest"]
        ),
        0,
        zeros_length=10,
    )
    assert v1v2_equal(v1b, v2b)
    assert v1v2_equal(v2_to_v1(v2b), v1_to_v2(v1b))
    assert ak.to_list(v1b) == ak.to_list(v2b)
    assert newform(json.loads(v1b.form.tojson())) == v2b.form.tolist()
def test_IndexedOptionArray_NumpyArray():
    v1a = ak.layout.IndexedOptionArray64(
        ak.layout.Index64(np.array([2, 2, -1, 1, -1, 5, 4], dtype=np.int64)),
        ak.layout.NumpyArray(np.array([1.1, 2.2, 3.3, 4.4, 5.5, 6.6])),
    )
    v2a = ak._v2.contents.indexedoptionarray.IndexedOptionArray(
        ak._v2.index.Index(np.array([2, 2, -1, 1, -1, 5, 4], dtype=np.int64)),
        ak._v2.contents.numpyarray.NumpyArray(np.array([1.1, 2.2, 3.3, 4.4, 5.5, 6.6])),
    )
    assert v1v2_equal(v1a, v2a)
    assert v1v2_equal(v2_to_v1(v2a), v1_to_v2(v1a))
    assert ak.to_list(v1a) == ak.to_list(v2a)
    assert newform(json.loads(v1a.form.tojson())) == v2a.form.tolist()
def test_ListOffsetArray_NumpyArray():
    v1a = ak.layout.ListOffsetArray64(
        ak.layout.Index64(np.array([1, 4, 4, 6], dtype=np.int64)),
        ak.layout.NumpyArray([6.6, 1.1, 2.2, 3.3, 4.4, 5.5, 7.7]),
    )
    v2a = ak._v2.contents.listoffsetarray.ListOffsetArray(
        ak._v2.index.Index(np.array([1, 4, 4, 6], dtype=np.int64)),
        ak._v2.contents.numpyarray.NumpyArray([6.6, 1.1, 2.2, 3.3, 4.4, 5.5, 7.7]),
    )
    assert v1v2_equal(v1a, v2a)
    assert v1v2_equal(v2_to_v1(v2a), v1_to_v2(v1a))
    assert ak.to_list(v1a) == ak.to_list(v2a)
    assert newform(json.loads(v1a.form.tojson())) == v2a.form.tolist()
Exemplo n.º 11
0
 def format_slice(x):
     if isinstance(x, slice):
         if x.step is None:
             return "{0}:{1}".format(
                 "" if x.start is None else x.start,
                 "" if x.stop is None else x.stop,
             )
         else:
             return "{0}:{1}:{2}".format(
                 "" if x.start is None else x.start,
                 "" if x.stop is None else x.stop,
                 x.step,
             )
     elif isinstance(x, tuple):
         return "(" + ", ".join(format_slice(y) for y in x) + ")"
     elif isinstance(x, ak._v2.index.Index64):
         return str(x.data)
     elif isinstance(x, Content):
         return str(ak.Array(v2_to_v1(x)))
     else:
         return repr(x)
def test_UnionArray_NumpyArray():
    v1a = ak.layout.UnionArray8_64(
        ak.layout.Index8(np.array([1, 1, 0, 0, 1, 0, 1], dtype=np.int8)),
        ak.layout.Index64(np.array([4, 3, 0, 1, 2, 2, 4, 100], dtype=np.int64)),
        [
            ak.layout.NumpyArray(np.array([1, 2, 3], dtype=np.int64)),
            ak.layout.NumpyArray(np.array([1.1, 2.2, 3.3, 4.4, 5.5])),
        ],
    )
    v2a = ak._v2.contents.unionarray.UnionArray(
        ak._v2.index.Index(np.array([1, 1, 0, 0, 1, 0, 1], dtype=np.int8)),
        ak._v2.index.Index(np.array([4, 3, 0, 1, 2, 2, 4, 100], dtype=np.int64)),
        [
            ak._v2.contents.numpyarray.NumpyArray(np.array([1, 2, 3], dtype=np.int64)),
            ak._v2.contents.numpyarray.NumpyArray(np.array([1.1, 2.2, 3.3, 4.4, 5.5])),
        ],
    )
    assert v1v2_equal(v1a, v2a)
    assert v1v2_equal(v2_to_v1(v2a), v1_to_v2(v1a))
    assert ak.to_list(v1a) == ak.to_list(v2a)
    assert newform(json.loads(v1a.form.tojson())) == v2a.form.tolist()
Exemplo n.º 13
0
    def __getitem__(self, where):
        try:
            if ak._util.isint(where):
                return self._getitem_at(where)

            elif isinstance(where, slice) and where.step is None:
                return self._getitem_range(where)

            elif isinstance(where, slice):
                return self.__getitem__((where,))

            elif ak._util.isstr(where):
                return self._getitem_field(where)

            elif where is np.newaxis:
                return self.__getitem__((where,))

            elif where is Ellipsis:
                return self.__getitem__((where,))

            elif isinstance(where, tuple):
                if len(where) == 0:
                    return self
                nextwhere = self._getitem_broadcast(
                    [self._prepare_tuple_item(x) for x in where],
                    self.nplike,
                )

                next = ak._v2.contents.RegularArray(self, len(self), 1, None, None)

                out = next._getitem_next(nextwhere[0], nextwhere[1:], None)
                if len(out) == 0:
                    raise out._getitem_nothing()
                else:
                    return out._getitem_at(0)

            elif isinstance(where, ak.highlevel.Array):
                return self.__getitem__(where.layout)

            elif isinstance(where, ak.layout.Content):
                return self.__getitem__(v1_to_v2(where))

            elif isinstance(where, ak._v2.contents.numpyarray.NumpyArray):
                if issubclass(where.dtype.type, np.int64):
                    carry = ak._v2.index.Index64(where.data.reshape(-1))
                    allow_lazy = True
                elif issubclass(where.dtype.type, np.integer):
                    carry = ak._v2.index.Index64(
                        where.data.astype(np.int64).reshape(-1)
                    )
                    allow_lazy = "copied"  # True, but also can be modified in-place
                elif issubclass(where.dtype.type, (np.bool_, bool)):
                    carry = ak._v2.index.Index64(np.nonzero(where.data.reshape(-1))[0])
                    allow_lazy = "copied"  # True, but also can be modified in-place
                else:
                    raise TypeError(
                        "array slice must be an array of integers or booleans, not\n\n    {0}".format(
                            repr(where.data).replace("\n", "\n    ")
                        )
                    )
                out = self._getitem_next_array_wrap(
                    self._carry(carry, allow_lazy, NestedIndexError), where.shape
                )
                if len(out) == 0:
                    return out._getitem_nothing()
                else:
                    return out._getitem_at(0)

            elif isinstance(where, Content):
                return self.__getitem__((where,))

            elif isinstance(where, Iterable) and all(ak._util.isstr(x) for x in where):
                return self._getitem_fields(where)

            elif isinstance(where, Iterable):
                return self.__getitem__(
                    v1_to_v2(ak.operations.convert.to_layout(where))
                )

            else:
                raise TypeError(
                    "only integers, slices (`:`), ellipsis (`...`), np.newaxis (`None`), "
                    "integer/boolean arrays (possibly with variable-length nested "
                    "lists or missing values), field name (str) or names (non-tuple "
                    "iterable of str) are valid indices for slicing, not\n\n    "
                    + repr(where).replace("\n", "\n    ")
                )

        except NestedIndexError as err:

            def format_slice(x):
                if isinstance(x, slice):
                    if x.step is None:
                        return "{0}:{1}".format(
                            "" if x.start is None else x.start,
                            "" if x.stop is None else x.stop,
                        )
                    else:
                        return "{0}:{1}:{2}".format(
                            "" if x.start is None else x.start,
                            "" if x.stop is None else x.stop,
                            x.step,
                        )
                elif isinstance(x, tuple):
                    return "(" + ", ".join(format_slice(y) for y in x) + ")"
                elif isinstance(x, ak._v2.index.Index64):
                    return str(x.data)
                elif isinstance(x, Content):
                    return str(ak.Array(v2_to_v1(x)))
                else:
                    return repr(x)

            raise IndexError(
                """cannot slice

    {0}

with

    {1}

at inner {2} of length {3}, using sub-slice {4}.{5}""".format(
                    repr(ak.Array(v2_to_v1(self))),
                    format_slice(where),
                    type(err.array).__name__,
                    len(err.array),
                    format_slice(err.slicer),
                    ""
                    if err.details is None
                    else "\n\n{0} error: {1}.".format(
                        type(err.array).__name__, err.details
                    ),
                )
            )
def test_BitMaskedArray_RecordArray_NumpyArray():
    v1a = ak.layout.BitMaskedArray(
        ak.layout.IndexU8(
            np.packbits(
                np.array(
                    [
                        True,
                        True,
                        True,
                        True,
                        False,
                        False,
                        False,
                        False,
                        True,
                        False,
                        True,
                        False,
                        True,
                    ]
                )
            )
        ),
        ak.layout.RecordArray(
            [
                ak.layout.NumpyArray(
                    np.array(
                        [
                            0.0,
                            1.0,
                            2.0,
                            3.0,
                            4.0,
                            5.0,
                            6.0,
                            7.0,
                            1.1,
                            2.2,
                            3.3,
                            4.4,
                            5.5,
                            6.6,
                        ]
                    )
                )
            ],
            ["nest"],
        ),
        valid_when=True,
        length=13,
        lsb_order=False,
    )
    v2a = ak._v2.contents.bitmaskedarray.BitMaskedArray(
        ak._v2.index.Index(
            np.packbits(
                np.array(
                    [
                        True,
                        True,
                        True,
                        True,
                        False,
                        False,
                        False,
                        False,
                        True,
                        False,
                        True,
                        False,
                        True,
                    ]
                )
            )
        ),
        ak._v2.contents.recordarray.RecordArray(
            [
                ak._v2.contents.numpyarray.NumpyArray(
                    np.array(
                        [
                            0.0,
                            1.0,
                            2.0,
                            3.0,
                            4.0,
                            5.0,
                            6.0,
                            7.0,
                            1.1,
                            2.2,
                            3.3,
                            4.4,
                            5.5,
                            6.6,
                        ]
                    )
                )
            ],
            ["nest"],
        ),
        valid_when=True,
        length=13,
        lsb_order=False,
    )
    assert v1v2_equal(v1a, v2a)
    assert v1v2_equal(v2_to_v1(v2a), v1_to_v2(v1a))
    assert ak.to_list(v1a) == ak.to_list(v2a)
    assert newform(json.loads(v1a.form.tojson())) == v2a.form.tolist()

    v1b = ak.layout.BitMaskedArray(
        ak.layout.IndexU8(
            np.packbits(
                np.array(
                    [
                        0,
                        0,
                        0,
                        0,
                        1,
                        1,
                        1,
                        1,
                        0,
                        1,
                        0,
                        1,
                        0,
                    ],
                    dtype=np.uint8,
                )
            )
        ),
        ak.layout.RecordArray(
            [
                ak.layout.NumpyArray(
                    np.array(
                        [
                            0.0,
                            1.0,
                            2.0,
                            3.0,
                            4.0,
                            5.0,
                            6.0,
                            7.0,
                            1.1,
                            2.2,
                            3.3,
                            4.4,
                            5.5,
                            6.6,
                        ]
                    )
                )
            ],
            ["nest"],
        ),
        valid_when=False,
        length=13,
        lsb_order=False,
    )
    v2b = ak._v2.contents.bitmaskedarray.BitMaskedArray(
        ak._v2.index.Index(
            np.packbits(
                np.array(
                    [
                        0,
                        0,
                        0,
                        0,
                        1,
                        1,
                        1,
                        1,
                        0,
                        1,
                        0,
                        1,
                        0,
                    ],
                    dtype=np.uint8,
                )
            )
        ),
        ak._v2.contents.recordarray.RecordArray(
            [
                ak._v2.contents.numpyarray.NumpyArray(
                    np.array(
                        [
                            0.0,
                            1.0,
                            2.0,
                            3.0,
                            4.0,
                            5.0,
                            6.0,
                            7.0,
                            1.1,
                            2.2,
                            3.3,
                            4.4,
                            5.5,
                            6.6,
                        ]
                    )
                )
            ],
            ["nest"],
        ),
        valid_when=False,
        length=13,
        lsb_order=False,
    )
    assert v1v2_equal(v1b, v2b)
    assert v1v2_equal(v2_to_v1(v2b), v1_to_v2(v1b))
    assert ak.to_list(v1b) == ak.to_list(v2b)
    assert newform(json.loads(v1b.form.tojson())) == v2b.form.tolist()

    v1c = ak.layout.BitMaskedArray(
        ak.layout.IndexU8(
            np.packbits(
                np.array(
                    [
                        0,
                        0,
                        0,
                        0,
                        1,
                        1,
                        1,
                        1,
                        0,
                        0,
                        0,
                        1,
                        0,
                        1,
                        0,
                        1,
                    ],
                    dtype=np.uint8,
                )
            )
        ),
        ak.layout.RecordArray(
            [
                ak.layout.NumpyArray(
                    np.array(
                        [
                            0.0,
                            1.0,
                            2.0,
                            3.0,
                            4.0,
                            5.0,
                            6.0,
                            7.0,
                            1.1,
                            2.2,
                            3.3,
                            4.4,
                            5.5,
                            6.6,
                        ]
                    )
                )
            ],
            ["nest"],
        ),
        valid_when=True,
        length=13,
        lsb_order=True,
    )
    v2c = ak._v2.contents.bitmaskedarray.BitMaskedArray(
        ak._v2.index.Index(
            np.packbits(
                np.array(
                    [
                        0,
                        0,
                        0,
                        0,
                        1,
                        1,
                        1,
                        1,
                        0,
                        0,
                        0,
                        1,
                        0,
                        1,
                        0,
                        1,
                    ],
                    dtype=np.uint8,
                )
            )
        ),
        ak._v2.contents.recordarray.RecordArray(
            [
                ak._v2.contents.numpyarray.NumpyArray(
                    np.array(
                        [
                            0.0,
                            1.0,
                            2.0,
                            3.0,
                            4.0,
                            5.0,
                            6.0,
                            7.0,
                            1.1,
                            2.2,
                            3.3,
                            4.4,
                            5.5,
                            6.6,
                        ]
                    )
                )
            ],
            ["nest"],
        ),
        valid_when=True,
        length=13,
        lsb_order=True,
    )
    assert v1v2_equal(v1c, v2c)
    assert v1v2_equal(v2_to_v1(v2c), v1_to_v2(v1c))
    assert ak.to_list(v1c) == ak.to_list(v2c)
    assert newform(json.loads(v1c.form.tojson())) == v2c.form.tolist()

    v1d = ak.layout.BitMaskedArray(
        ak.layout.IndexU8(
            np.packbits(
                np.array(
                    [
                        1,
                        1,
                        1,
                        1,
                        0,
                        0,
                        0,
                        0,
                        0,
                        0,
                        0,
                        0,
                        1,
                        0,
                        1,
                        0,
                    ],
                    dtype=np.uint8,
                )
            )
        ),
        ak.layout.RecordArray(
            [
                ak.layout.NumpyArray(
                    np.array(
                        [
                            0.0,
                            1.0,
                            2.0,
                            3.0,
                            4.0,
                            5.0,
                            6.0,
                            7.0,
                            1.1,
                            2.2,
                            3.3,
                            4.4,
                            5.5,
                            6.6,
                        ]
                    )
                )
            ],
            ["nest"],
        ),
        valid_when=False,
        length=13,
        lsb_order=True,
    )
    v2d = ak._v2.contents.bitmaskedarray.BitMaskedArray(
        ak._v2.index.Index(
            np.packbits(
                np.array(
                    [
                        1,
                        1,
                        1,
                        1,
                        0,
                        0,
                        0,
                        0,
                        0,
                        0,
                        0,
                        0,
                        1,
                        0,
                        1,
                        0,
                    ],
                    dtype=np.uint8,
                )
            )
        ),
        ak._v2.contents.recordarray.RecordArray(
            [
                ak._v2.contents.numpyarray.NumpyArray(
                    np.array(
                        [
                            0.0,
                            1.0,
                            2.0,
                            3.0,
                            4.0,
                            5.0,
                            6.0,
                            7.0,
                            1.1,
                            2.2,
                            3.3,
                            4.4,
                            5.5,
                            6.6,
                        ]
                    )
                )
            ],
            ["nest"],
        ),
        valid_when=False,
        length=13,
        lsb_order=True,
    )
    assert v1v2_equal(v1d, v2d)
    assert v1v2_equal(v2_to_v1(v2d), v1_to_v2(v1d))
    assert ak.to_list(v1d) == ak.to_list(v2d)
    assert newform(json.loads(v1d.form.tojson())) == v2d.form.tolist()