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Set up:

    >>> import sys
    >>> from io import BytesIO
    >>> from numpy.lib import format
    >>>
    >>> scalars = [
    ...     np.uint8,
    ...     np.int8,
    ...     np.uint16,
    ...     np.int16,
    ...     np.uint32,
    ...     np.int32,
    ...     np.uint64,
    ...     np.int64,
    ...     np.float32,
    ...     np.float64,
    ...     np.complex64,
    ...     np.complex128,
    ...     object,
    ... ]
    >>>
    >>> basic_arrays = []
    >>>
    >>> for scalar in scalars:
    ...     for endian in '<>':
    ...         dtype = np.dtype(scalar).newbyteorder(endian)
    ...         basic = np.arange(15).astype(dtype)
    ...         basic_arrays.extend([
    ...             np.array([], dtype=dtype),
    ...             np.array(10, dtype=dtype),
    ...             basic,
    ...             basic.reshape((3,5)),
    ...             basic.reshape((3,5)).T,
    ...             basic.reshape((3,5))[::-1,::2],
    ...         ])
    ...
    >>>
    >>> Pdescr = [
    ...     ('x', 'i4', (2,)),
    ...     ('y', 'f8', (2, 2)),
    ...     ('z', 'u1')]
    >>>
    >>>
    >>> PbufferT = [
    ...     ([3,2], [[6.,4.],[6.,4.]], 8),
    ...     ([4,3], [[7.,5.],[7.,5.]], 9),
    ...     ]
    >>>
    >>>
    >>> Ndescr = [
    ...     ('x', 'i4', (2,)),
    ...     ('Info', [
    ...         ('value', 'c16'),
    ...         ('y2', 'f8'),
    ...         ('Info2', [
    ...             ('name', 'S2'),
    ...             ('value', 'c16', (2,)),
    ...             ('y3', 'f8', (2,)),
    ...             ('z3', 'u4', (2,))]),
    ...         ('name', 'S2'),
    ...         ('z2', 'b1')]),
    ...     ('color', 'S2'),
    ...     ('info', [
    ...         ('Name', 'U8'),
    ...         ('Value', 'c16')]),
    ...     ('y', 'f8', (2, 2)),
    ...     ('z', 'u1')]
    >>>
    >>>
    >>> NbufferT = [
    ...     ([3,2], (6j, 6., ('nn', [6j,4j], [6.,4.], [1,2]), 'NN', True), 'cc', ('NN', 6j), [[6.,4.],[6.,4.]], 8),
    ...     ([4,3], (7j, 7., ('oo', [7j,5j], [7.,5.], [2,1]), 'OO', False), 'dd', ('OO', 7j), [[7.,5.],[7.,5.]], 9),
    ...     ]
    >>>
    >>>
    >>> record_arrays = [
    ...     np.array(PbufferT, dtype=np.dtype(Pdescr).newbyteorder('<')),
    ...     np.array(NbufferT, dtype=np.dtype(Ndescr).newbyteorder('<')),
    ...     np.array(PbufferT, dtype=np.dtype(Pdescr).newbyteorder('>')),
    ...     np.array(NbufferT, dtype=np.dtype(Ndescr).newbyteorder('>')),
    ... ]

Test the magic string writing.

    >>> format.magic(1, 0)
    '\x93NUMPY\x01\x00'
    >>> format.magic(0, 0)
    '\x93NUMPY\x00\x00'
    >>> format.magic(255, 255)
    '\x93NUMPY\xff\xff'
    >>> format.magic(2, 5)
    '\x93NUMPY\x02\x05'

Test the magic string reading.

    >>> format.read_magic(BytesIO(format.magic(1, 0)))
    (1, 0)
    >>> format.read_magic(BytesIO(format.magic(0, 0)))
    (0, 0)
    >>> format.read_magic(BytesIO(format.magic(255, 255)))
    (255, 255)
    >>> format.read_magic(BytesIO(format.magic(2, 5)))
    (2, 5)

Test the header writing.

    >>> for arr in basic_arrays + record_arrays:
    ...     f = BytesIO()
    ...     format.write_array_header_1_0(f, arr)   # XXX: arr is not a dict, items gets called on it
    ...     print(repr(f.getvalue()))
    ...
    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '|u1', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '|u1', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '|i1', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '|i1', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '<u2', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '<u2', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '<u2', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '<u2', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '<u2', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '<u2', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '>u2', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '>u2', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '>u2', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '>u2', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '>u2', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '>u2', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '<i2', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '<i2', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '<i2', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '<i2', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '<i2', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '<i2', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '>i2', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '>i2', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '>i2', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '>i2', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '>i2', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '>i2', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '<u4', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '<u4', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '<u4', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '<u4', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '<u4', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '<u4', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '>u4', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '>u4', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '>u4', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '>u4', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '>u4', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '>u4', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '<i4', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '<i4', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '<i4', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '<i4', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '<i4', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '<i4', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '>i4', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '>i4', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '>i4', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '>i4', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '>i4', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '>i4', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '<u8', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '<u8', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '<u8', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '<u8', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '<u8', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '<u8', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '>u8', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '>u8', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '>u8', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '>u8', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '>u8', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '>u8', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '<i8', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '<i8', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '<i8', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '<i8', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '<i8', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '<i8', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '>i8', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '>i8', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '>i8', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '>i8', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '>i8', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '>i8', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '<f4', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '<f4', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '<f4', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '<f4', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '<f4', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '<f4', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '>f4', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '>f4', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '>f4', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '>f4', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '>f4', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '>f4', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '<f8', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '<f8', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '<f8', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '<f8', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '<f8', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '<f8', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '>f8', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '>f8', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '>f8', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '>f8', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '>f8', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '>f8', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '<c8', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '<c8', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '<c8', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '<c8', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '<c8', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '<c8', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '>c8', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': '>c8', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': '>c8', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': '>c8', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': '>c8', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': '>c8', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': '<c16', 'fortran_order': False, 'shape': (0,)}             \n"
    "F\x00{'descr': '<c16', 'fortran_order': False, 'shape': ()}               \n"
    "F\x00{'descr': '<c16', 'fortran_order': False, 'shape': (15,)}            \n"
    "F\x00{'descr': '<c16', 'fortran_order': False, 'shape': (3, 5)}           \n"
    "F\x00{'descr': '<c16', 'fortran_order': True, 'shape': (5, 3)}            \n"
    "F\x00{'descr': '<c16', 'fortran_order': False, 'shape': (3, 3)}           \n"
    "F\x00{'descr': '>c16', 'fortran_order': False, 'shape': (0,)}             \n"
    "F\x00{'descr': '>c16', 'fortran_order': False, 'shape': ()}               \n"
    "F\x00{'descr': '>c16', 'fortran_order': False, 'shape': (15,)}            \n"
    "F\x00{'descr': '>c16', 'fortran_order': False, 'shape': (3, 5)}           \n"
    "F\x00{'descr': '>c16', 'fortran_order': True, 'shape': (5, 3)}            \n"
    "F\x00{'descr': '>c16', 'fortran_order': False, 'shape': (3, 3)}           \n"
    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': 'O', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (0,)}              \n"
    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': ()}                \n"
    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (15,)}             \n"
    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (3, 5)}            \n"
    "F\x00{'descr': 'O', 'fortran_order': True, 'shape': (5, 3)}             \n"
    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (3, 3)}            \n"
    "v\x00{'descr': [('x', '<i4', (2,)), ('y', '<f8', (2, 2)), ('z', '|u1')],\n 'fortran_order': False,\n 'shape': (2,)}         \n"
    "\x16\x02{'descr': [('x', '<i4', (2,)),\n           ('Info',\n            [('value', '<c16'),\n             ('y2', '<f8'),\n             ('Info2',\n              [('name', '|S2'),\n               ('value', '<c16', (2,)),\n               ('y3', '<f8', (2,)),\n               ('z3', '<u4', (2,))]),\n             ('name', '|S2'),\n             ('z2', '|b1')]),\n           ('color', '|S2'),\n           ('info', [('Name', '<U8'), ('Value', '<c16')]),\n           ('y', '<f8', (2, 2)),\n           ('z', '|u1')],\n 'fortran_order': False,\n 'shape': (2,)}      \n"
    "v\x00{'descr': [('x', '>i4', (2,)), ('y', '>f8', (2, 2)), ('z', '|u1')],\n 'fortran_order': False,\n 'shape': (2,)}         \n"
    "\x16\x02{'descr': [('x', '>i4', (2,)),\n           ('Info',\n            [('value', '>c16'),\n             ('y2', '>f8'),\n             ('Info2',\n              [('name', '|S2'),\n               ('value', '>c16', (2,)),\n               ('y3', '>f8', (2,)),\n               ('z3', '>u4', (2,))]),\n             ('name', '|S2'),\n             ('z2', '|b1')]),\n           ('color', '|S2'),\n           ('info', [('Name', '>U8'), ('Value', '>c16')]),\n           ('y', '>f8', (2, 2)),\n           ('z', '|u1')],\n 'fortran_order': False,\n 'shape': (2,)}      \n"
é    N)ÚBytesIO)Úassert_Úassert_array_equalÚassert_raisesÚassert_raises_regexÚassert_warnsÚIS_PYPYÚIS_WASMÚIS_64BIT)Úrequires_memory)Úformatz<>iÜ  ©Údtypeé
   )é   é2   éÿÿÿÿé   )©ÚxÚi4©r   ©ÚyÚf8©r   r   ©ÚzÚu1é   g      @g      @é   é   g      @g      @é	   r   ZInfo)ÚvalueÚc16)Úy2r   ZInfo2)©ÚnameÚS2)r#   r$   r   )Zy3r   r   )Zz3Zu4r   r&   )Zz2Úb1)Úcolorr(   Úinfo)ÚNameZU8)ÚValuer$   r   r   ù              @Únny              @é   ÚNNTÚcc)r1   r.   ù              @Zooy              @ÚOOFÚdd)r4   r3   ú<ú>)Úc©z<f8©é   r   c                       s   e Zd Zd‡ fdd„	Z‡  ZS )ÚBytesIOSRandomSizeNc                    s    dd l }| d|¡}tƒ  |¡S )Nr   r0   )ÚrandomÚrandintÚsuperÚread)ÚselfÚsizer=   ©Ú	__class__© úJ/var/www/auris/lib/python3.10/site-packages/numpy/lib/tests/test_format.pyr@   ‘  s   zBytesIOSRandomSize.read©N)Ú__name__Ú
__module__Ú__qualname__r@   Ú__classcell__rE   rE   rC   rF   r<     s    r<   c                 C   s0   t ƒ }t || ¡ t | ¡ ƒ}tj|dd}|S )NT©Úallow_pickle©r   r   Úwrite_arrayÚgetvalueÚ
read_array©ÚarrÚfÚf2Úarr2rE   rE   rF   Ú	roundtrip—  s
   rW   c                 C   s,   t ƒ }t || ¡ t| ¡ ƒ}t |¡}|S rG   )r   r   rO   r<   rP   rQ   rR   rE   rE   rF   Úroundtrip_randsizeŸ  s
   
rX   c                 C   s4   t ƒ }t || ¡ t | ¡ dd… ƒ}t |¡}|S )Nr   r   rN   rR   rE   rE   rF   Úroundtrip_truncated§  s
   
rY   c                 C   s   t | |kƒ d S rG   )r   )Zo1Úo2rE   rE   rF   Úassert_equal_°  s   r[   c                  C   s$   t t D ]} t| ƒ}t| |ƒ qd S rG   )Úbasic_arraysÚrecord_arraysrW   r   ©rS   rV   rE   rE   rF   Útest_roundtrip´  s   þr_   c                  C   s.   t t D ]} | jtkrt| ƒ}t| |ƒ qd S rG   )r\   r]   r   ÚobjectrX   r   r^   rE   rE   rF   Útest_roundtrip_randsizeº  s   

€ýra   c                  C   s$   t D ]} | jtkrttt| ƒ qd S rG   )r\   r   r`   r   Ú
ValueErrorrY   ©rS   rE   rE   rF   Útest_roundtrip_truncatedÁ  s
   
€þrd   c                  C   s4   t jdt  ttjd f¡d} t| ƒ}t| |ƒ d S )Nr0   r   )ÚnpÚonesr   Ústrr   ÚBUFFER_SIZErW   r   )Zlong_str_arrZlong_str_arr2rE   rE   rF   Útest_long_strÇ  s   ri   zmemmap doesn't work correctly)Úreasonc           
   	   C   sD  t tt ƒD ]™\}}|jjrqtj | d|› d¡}tj | d|› d¡}t|dƒ}t	 
||¡ W d   ƒ n1 s;w   Y  |jjoH|jj }t	j|d|j|j|d}||d< | ¡  t|dƒ}| ¡ }W d   ƒ n1 sqw   Y  t|dƒ}| ¡ }	W d   ƒ n1 sŠw   Y  t||	ƒ t	j|d	d
}| ¡  qd S )NÚnormalz.npyZmemmapÚwbúw+)Úmoder   ÚshapeÚfortran_order.ÚrbÚr)rn   )Ú	enumerater\   r]   r   Z	hasobjectÚosÚpathÚjoinÚopenr   rO   ÚflagsÚf_contiguousÚc_contiguousÚopen_memmapro   Úflushr@   r[   )
ÚtmpdirÚirS   ZnfnZmfnÚfprp   ÚmaZnormal_bytesZmemmap_bytesrE   rE   rF   Útest_memmap_roundtripÎ  s2   ÿÿÿ
ÿ
ÿ

ær   c                 C   sj   t j dd¡}tj | d¡}t j||d t  |¡}|d }W d   ƒ n1 s)w   Y  t||ƒ d S )NéÈ   zcompressed.npzrc   rS   )	re   r=   Zrandrt   ru   rv   Zsavez_compressedÚloadr   )r}   rS   Únpz_fileÚnpzÚarr1rE   rE   rF   Útest_compressed_roundtripî  s   
ÿr‡   z
i1, i4, i1)ÚalignÚaÚbr   é   )ÚnamesÚformatsÚoffsetsr8   Úd)rŒ   r   )r‰   Ú rŠ   ZaaZbb)rŒ   r   rŽ   Útitles)rŒ   r   ÚitemsizeÚdtc                 C   s‚   t  d|¡}tdƒD ]}|d ||< q
tj | d¡}t j||d t  |¡}|d }W d   ƒ n1 s5w   Y  t||ƒ d S )Nr   r;   zaligned.npzrc   rS   )	re   ÚzerosÚrangert   ru   rv   Úsavezrƒ   r   )r}   r“   rS   r~   r„   r…   r†   rE   rE   rF   Útest_load_padded_dtype  s   
ÿr—   )r   é   zsee gh-23988z!Emscripten NODEFS has a buggy dupc                  C   sh   d} t j t j t¡d| ¡}tjtdd t 	|¡}W d   ƒ n1 s%w   Y  t
|t d¡ƒ d S )Nzwin64python2.npyÚdatazReading.*this warning\.©Úmatchr   )rt   ru   rv   ÚdirnameÚ__file__ÚpytestÚwarnsÚUserWarningre   rƒ   r   rf   )Úfnameru   r™   rE   rE   rF   Ú%test_python2_python3_interoperability  s   ÿr¢   c               	   C   s€  t j t j t¡d¡} tjd tddgtd}dD ]¥}t j | |¡}dD ]T}tj	|d|d}| 
d	¡r;|d
 }| ¡  n|}|dkri| d¡ritt|d tƒƒ t|d d… |d d… ƒ t|d  |¡|d ƒ q#tt|d tƒƒ t||ƒ q#| d¡r½| 
d	¡r©tj	|dd}tt|jd
ƒ | ¡  tj	|dddd}tt|jd
ƒ | ¡  qtttj	|dd tttj	|dddd qd S )Nr™   u   å„ªè‰¯s   ä¸è‰¯r   )zpy2-np0-objarr.npyúpy2-objarr.npyúpy2-objarr.npzzpy3-objarr.npyzpy3-objarr.npz)ÚbytesÚlatin1T©rM   Úencodingz.npzr   r¦   Úpy2r   r   rL   F)rM   Úfix_importsr¨   )rt   ru   rv   rœ   r   re   Úarrayr•   r`   rƒ   ÚendswithÚcloseÚ
startswithr   Ú
isinstancerg   r   Úencoder¥   r   ÚUnicodeErrorÚ__getitem__ÚImportError)Údata_dirÚexpectedr¡   ru   r¨   Zdata_fr™   rE   rE   rF   Útest_pickle_python2_python3  sN   
ÿþ




ÿ

ÿ
þ€ßr¶   c                 C   s¶   t j t j t¡d¡}t j |d¡}tttj|ddd t j |d¡}tj|ddd}tt|j	dƒ W d   ƒ n1 s=w   Y  t j | d¡}tttj
|tjd gtd	dd
 d S )Nr™   r£   Fr¦   r§   r¤   r   zpickle-disabled.npyr   rL   )rt   ru   rv   rœ   r   r   rb   re   rƒ   r²   Úsaver«   r`   )r}   r´   ru   rT   rE   rE   rF   Útest_pickle_disallowK  s   
ÿÿ
ÿr¸   )r   r   Úi1)rŒ   r   rŽ   r’   )r!   )r   r9   r   r:   c                 C   s8   t  | j¡}t|| ƒ t d| ¡}t|ƒ}t||ƒ d S )Nr   )r   Zdescr_to_dtypeÚdescrr[   re   r”   rW   r   )r“   Údt1r†   rV   rE   rE   rF   Útest_descr_to_dtypeZ  s
   2
r¼   c                  C   sî   t ƒ } dd„ tdƒD ƒ}tjd|d}tj| |dd tjdd	}t d
dt	¡ t | |¡ t
|d jt	u ƒ W d   ƒ n1 sBw   Y  |  d¡ |  ¡ }t
t|ƒtj dkƒ |  d¡ tj| dd}t||ƒ tttj| |dƒ d S )Nc                 S   ó   g | ]
}d | d t f‘qS ©z%déd   ©Úfloat©Ú.0r~   rE   rE   rF   Ú
<listcomp>•  ó    z$test_version_2_0.<locals>.<listcomp>éô  éè  r   ©r   r   ©ÚversionT©ÚrecordÚalwaysr   r   é@ ©Úmax_header_size©r0   r   )r   r•   re   rf   r   rO   ÚwarningsÚcatch_warningsÚfilterwarningsr    r   ÚcategoryÚseekÚreadlineÚlenÚARRAY_ALIGNrQ   r   r   rb   )rT   r“   r   ÚwÚheaderÚnrE   rE   rF   Útest_version_2_0’  s    ý


rÝ   c              	   C   s,  dd„ t dƒD ƒ}tjd|d}tj | d¡}tj | d¡}tttj	|d|j
|jd	d
 tj	|d|j
|jdd
}||d< | ¡  tj	|ddd}t||ƒ tjdd,}t ddt¡ tj	|d|j
|jd d
}t|d jtu ƒ ||d< | ¡  W d   ƒ n1 s‚w   Y  tj	|ddd}t||ƒ d S )Nc                 S   r½   r¾   rÀ   rÂ   rE   rE   rF   rÄ   ®  rÅ   z+test_version_2_0_memmap.<locals>.<listcomp>rÆ   rÇ   r   zversion2_01.npyzversion2_02.npyrm   rÑ   )rn   r   ro   rÊ   rÈ   .rr   rÎ   )rn   rÐ   TrË   rÍ   r   r   )r•   re   rf   rt   ru   rv   r   rb   r   r{   r   ro   r|   r   rÒ   rÓ   rÔ   r    r   rÕ   )r}   r“   r   Ztf1Ztf2r€   rÚ   rE   rE   rF   Útest_version_2_0_memmap«  s2   ÿÿ
ÿ
úrÞ   Ú	mmap_moderr   c                 C   s  t j | d¡}tjddd d d}tjtdd t ||¡ W d   ƒ n1 s*w   Y  tj	t
d	d tj||d
 W d   ƒ n1 sHw   Y  tj	t
d	d tj||dd W d   ƒ n1 sgw   Y  tj||dd}t||ƒ tj||dd}t||ƒ d S )Nzlarge_header.npyr0   úi,é'  r~   r   ú.*format 2.0rš   úHeader.*large)rß   é N  )rß   rÐ   T)rß   rM   é ¿ )rt   ru   rv   re   r«   rž   rŸ   r    r·   Úraisesrb   rƒ   r   )r}   rß   rT   rS   ÚresrE   rE   rF   Útest_huge_headerÊ  s   ÿÿÿ
rè   c                 C   s  t j | d¡}tjddd d d}tjtdd tj||d	 W d   ƒ n1 s+w   Y  tj	t
d
d t |¡d  W d   ƒ n1 sIw   Y  tj	t
d
d tj|ddd  W d   ƒ n1 siw   Y  tj|ddd }t||ƒ tj|ddd }t||ƒ d S )Nzlarge_header.npzr0   rà   rá   r~   r   râ   rš   rc   rã   rS   rä   rÏ   TrL   rå   )rt   ru   rv   re   r«   rž   rŸ   r    r–   ræ   rb   rƒ   r   )r}   rT   rS   rç   rE   rE   rF   Útest_huge_header_npzÞ  s   ÿÿÿ
ré   c               	   C   s´   t ƒ } t d¡}tj| |dd t | |¡ tj| |d d t | |¡ tj| |dd t | |¡ g d¢}|D ]}ttdƒ tj| ||d W d   ƒ n1 sRw   Y  q8d S )Nr0   rÑ   rÉ   rÈ   ))r0   r0   )r   r   )r   r0   r   )éÿ   rê   z we only support format version.*)r   re   Úaranger   rO   r   rb   )rT   rS   Zbad_versionsrÊ   rE   rE   rF   Útest_write_versionò  s"   
ÿþ€ÿrì   )s   “NUMPYs   “NUMPY  s   “NUMPY s   “NUMPY s   “NUMPYs   “NUMPYÿÿ)s   ’NUMPY s    NUMPY s   “numpy s   “MATLB s   “NUMPYs   “NUMPYó    c                  C   s¢   t ƒ } t ƒ }tjdtd}tj| |dd tj||dd |  d¡ | d¡ t | ¡}t |¡}t|dkƒ t|dkƒ t|  	¡ tj
kƒ t| 	¡ tj
kƒ d S )N©r   r‹   r   rÑ   rÉ   rÈ   r   )r   re   rf   rÁ   r   rO   rÖ   Z
read_magicr   ÚtellÚ	MAGIC_LEN)Ús1Ús2rS   Zversion1Zversion2rE   rE   rF   Útest_read_magic  s   



ró   c                  C   s$   t D ]} t| ƒ}tttj|ƒ qd S rG   )Úmalformed_magicr   r   rb   r   rQ   ©ÚmagicrT   rE   rE   rF   Útest_read_magic_bad_magic4  s   þr÷   c                  C   s(   t t D ]} t| ƒ}tttj|ƒ qd S rG   )Úbad_version_magicrô   r   r   rb   r   rQ   rõ   rE   rE   rF   Útest_read_version_1_0_bad_magic:  s   þrù   c                   C   sD   t ttjddƒ t ttjddƒ t ttjddƒ t ttjddƒ d S )Nr   r0   é   )r   rb   r   rö   rE   rE   rE   rF   Útest_bad_magic_args@  s   rû   c                  C   sL   t ƒ } tƒ dddœ}t | |¡ t ƒ } dd dfg|d< tttj| |ƒ d S )NFz<i8©ro   rp   rº   A   xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxrú   rº   )r   Útupler   Úwrite_array_header_1_0r   rb   ©Úsr   rE   rE   rF   Útest_large_headerG  s   r  c                  C   ór   t ƒ } tjdtd}tj| |dd |  tj¡ t | ¡\}}}t	|  
¡ tj dkƒ t	|||fddtfkƒ d S )Nrî   r   rÑ   rÉ   r   F)r   re   rf   rÁ   r   rO   rÖ   rð   Úread_array_header_1_0r   rï   rÙ   ©r   rS   ro   Úfortranr   rE   rE   rF   Útest_read_array_header_1_0Q  ó   r  c                  C   r  )Nrî   r   rÈ   rÉ   r   F)r   re   rf   rÁ   r   rO   rÖ   rð   Zread_array_header_2_0r   rï   rÙ   r  rE   rE   rF   Útest_read_array_header_2_0^  r  r  c                  C   sˆ   t ƒ } tttj| ƒ t dƒ} tttj| ƒ t dƒ} tttj| ƒ t dƒ} tttj| ƒ dddddœ}t ƒ } t | |¡ tttj| ƒ d S )	Nó   1s    s@   “NUMPY 6 {'descr': 'x', 'shape': (1, 2), }                    
©r0   r   Fr   r   )ro   rp   rº   Zextrakey)r   r   rb   r   r  rþ   rÿ   rE   rE   rF   Útest_bad_headerk  s$   ÿýr  c                 C   sþ   t jdks
t jdkrt d¡ tj | d¡}zdd l}| ddd|g¡ W n t	y3   t d	¡ Y nw t
|d
ƒ}| d¡ t d¡}t ||¡ W d   ƒ n1 sTw   Y  t
|dƒ}| d¡ t |¡}W d   ƒ n1 ssw   Y  t||ƒ d S )NÚwin32Úcygwinz)Unknown if Windows has sparse filesystemsZsparse_filer   Útruncatez-sZ
5368709120zCould not create 5GB large filerl   l        r;   rq   )ÚsysÚplatformrž   Úskiprt   ru   rv   Ú
subprocessÚ
check_callÚ	Exceptionrw   rÖ   re   rë   r·   rƒ   r   )r}   Ztf_nameÚsprT   r   rr   rE   rE   rF   Útest_large_file_supportˆ  s&   
ÿ

ý
þr  zflaky on PyPyztest requires 64-bit systeml        )Z
free_bytesc                 C   sÈ   d}z
t j|t jd}W n ty   t d¡ Y nw tj | d¡}t	|dƒ}t j
||d W d   ƒ n1 s9w   Y  ~t	|dƒ}t  |¡d }W d   ƒ n1 sVw   Y  |j|ksbJ ‚d S )	N)i   @r   r   zCould not create large fileZlarge_archiverl   rc   rq   rS   )re   ÚemptyÚuint8ÚMemoryErrorrž   r  rt   ru   rv   rw   r–   rƒ   ro   )r}   ro   r‰   r¡   rT   Znew_arE   rE   rF   Útest_large_archive¡  s   ÿÿÿr  c                 C   sH   t j | d¡}t |¡ t |¡	}W d   ƒ d S 1 sw   Y  d S )Nznothing.npz)rt   ru   rv   re   r–   rƒ   )r}   r¡   ZnpsrE   rE   rF   Útest_empty_npz»  s
   
"ÿr  c              	   C   s  t jg d¢dtfdtfgd}tj | d¡}t|dƒ}tj||dd W d   ƒ n1 s.w   Y  t|d	ƒ}t 	|¡}W d   ƒ n1 sHw   Y  t
||ƒ t|dƒ-}ttƒ tj||d d W d   ƒ n1 sow   Y  W d   ƒ d S W d   ƒ d S 1 s‡w   Y  d S )
N)©r0   r   r
  r  r
  Úintu   æ•´å½¢r   zunicode.npyrl   )r   r   rÉ   rq   )re   r«   r  rt   ru   rv   rw   r   rO   rQ   r   r   r    )r}   rS   r¡   rT   rV   rE   rE   rF   Útest_unicode_field_namesÃ  s(   
þû	ÿÿ

ÿÿ"ÿr  c                  C   s”   g d¢g d¢g d¢g d¢fD ]9\} }}dd„ t tjƒD ƒD ])}tƒ }t || r+d|fn|df| t d| tfg¡d	œ¡ t| 	¡ ƒ|ksFJ ‚qqd S )
N)Fé   é€   )Fé   éÀ   )Tr!  r   )Té   r"  c                 S   s   g | ]}d | ‘qS )r   rE   rÂ   rE   rE   rF   rÄ   Þ  s    z+test_header_growth_axis.<locals>.<listcomp>r   ú rü   )
r•   r   ZGROWTH_AXIS_MAX_DIGITSr   rþ   re   r   r  rØ   rP   )Zis_fortran_arrayZdtype_spaceZexpected_header_lengthrB   r   rE   rE   rF   Útest_header_growth_axisÚ  s   ÿýøýr%  ZS3ZsomeÚstuff)ÚmetadataZsubarrayr   )é   r   r    zPyPy bug in error formattingc                 C   sž   t jd| d}tƒ }ttƒ t  ||¡ W d   ƒ n1 sw   Y  | d¡ t  |¡}ddlm	} t
||ƒ ||jƒ|jusCJ ‚||jƒ|ju sMJ ‚d S )Nr   r   r   )Údrop_metadata)re   rf   r   r   r    r·   rÖ   rƒ   Znumpy.lib._utils_implr)  r   r   )r“   rS   ÚbufrV   r)  rE   rE   rF   Útest_metadata_dtypeè  s   
ÿ


r+  )kÚ__doc__r  rt   rÒ   rž   Úior   Únumpyre   Znumpy.testingr   r   r   r   r   r   r	   r
   Znumpy.testing._private.utilsr   Z	numpy.libr   r  Zint8Zuint16Zint16Zuint32Zint32Zuint64Zint64Zfloat32Zfloat64Z	complex64Z
complex128r`   Zscalarsr\   ZscalarZendianr   Znewbyteorderrë   ZastypeÚbasicÚextendr«   ZreshapeÚTZPdescrZPbufferTZNdescrZNbufferTr”   r]   r<   rW   rX   rY   r[   r_   ra   rd   ri   ÚmarkZskipifZslowr   r‡   r»   Zdt2Zdt3Zdt4Zdt5Zdt6Zparametrizer—   Úversion_infoZxfailr¢   r¶   r¸   r  r¼   rÝ   rÞ   rè   ré   rì   rø   rô   ró   r÷   rù   rû   r  r  r  r  r  r  r  r  r%  rÁ   ÚimplementationrÊ   r+  rE   rE   rE   rF   Ú<module>   s„    (ó
ôýý
÷
þï&ÿ&ÿúû
	
ÿÿ
/þýüýûú


ýû
øýþø
õòÿã
1



ÿ
ÿú
ÿ