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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_WASM)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)r0   r-   ù              @Zooy              @ÚOOFÚdd)r3   r2   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   r/   )ÚrandomÚrandintÚsuperÚread)ÚselfÚsizer<   ©Ú	__class__© úI/var/www/auris/lib/python3.9/site-packages/numpy/lib/tests/test_format.pyr?   ‘  s    zBytesIOSRandomSize.read)N)Ú__name__Ú
__module__Ú__qualname__r?   Ú__classcell__rD   rD   rB   rE   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arr2rD   rD   rE   Ú	roundtrip—  s
    rU   c                 C   s,   t ƒ }t || ¡ t| ¡ ƒ}t |¡}|S ©N)r   r   rM   r;   rN   rO   rP   rD   rD   rE   Úroundtrip_randsizeŸ  s
    
rW   c                 C   s4   t ƒ }t || ¡ t | ¡ dd… ƒ}t |¡}|S )Nr   r   rL   rP   rD   rD   rE   Úroundtrip_truncated§  s
    
rX   c                 C   s   t | |kƒ d S rV   )r   )Zo1Zo2rD   rD   rE   Úassert_equal_°  s    rY   c                  C   s$   t t D ]} t| ƒ}t| |ƒ qd S rV   )Úbasic_arraysÚrecord_arraysrU   r   ©rQ   rT   rD   rD   rE   Útest_roundtrip´  s    r]   c                  C   s.   t t D ] } | jtkrt| ƒ}t| |ƒ qd S rV   )rZ   r[   r   ÚobjectrW   r   r\   rD   rD   rE   Útest_roundtrip_randsizeº  s    
r_   c                  C   s$   t D ]} | jtkrttt| ƒ qd S rV   )rZ   r   r^   r   Ú
ValueErrorrX   ©rQ   rD   rD   rE   Útest_roundtrip_truncatedÁ  s    
rb   c                  C   s4   t jdt  ttjd f¡d} t| ƒ}t| |ƒ d S )Nr/   r   )ÚnpÚonesr   Ústrr   ÚBUFFER_SIZErU   r   )Zlong_str_arrZlong_str_arr2rD   rD   rE   Útest_long_strÇ  s    rg   zmemmap doesn't work correctly)Úreasonc           
   	   C   sH  t tt ƒD ]4\}}|jjr qtj | d|› d¡}tj | d|› d¡}t|dƒ}t	 
||¡ W d   ƒ n1 sx0    Y  |jjo’|jj }t	j|d|j|j|d}||d< | ¡  t|dƒ}| ¡ }W d   ƒ n1 sä0    Y  t|dƒ}| ¡ }	W d   ƒ n1 s0    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)rl   )Ú	enumeraterZ   r[   r   Z	hasobjectÚosÚpathÚjoinÚopenr   rM   ÚflagsÚf_contiguousÚc_contiguousÚopen_memmaprm   Úflushr?   rY   )
ÚtmpdirÚirQ   ZnfnZmfnÚfprn   ÚmaZnormal_bytesZmemmap_bytesrD   rD   rE   Útest_memmap_roundtripÎ  s*    *ÿÿ&(
r   c                 C   sj   t j dd¡}tj | d¡}t j||d t  |¡}|d }W d   ƒ n1 sR0    Y  t||ƒ d S )NéÈ   zcompressed.npzra   rQ   )	rc   r<   Zrandrr   rs   rt   Zsavez_compressedÚloadr   )r{   rQ   Únpz_fileÚnpzÚarr1rD   rD   rE   Útest_compressed_roundtripî  s    &r…   z
i1, i4, i1)ZalignÚaÚbr   é   )ÚnamesÚformatsÚoffsetsr7   Úd)r‰   rŠ   )r†   Ú r‡   ZaaZbb)r‰   rŠ   r‹   Útitles)r‰   rŠ   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 sj0    Y  t||ƒ d S )Nr   r:   zaligned.npzra   rQ   )	rc   ÚzerosÚrangerr   rs   rt   Úsavezr   r   )r{   r   rQ   r|   r‚   rƒ   r„   rD   rD   rE   Útest_load_padded_dtype  s    &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 sJ0    Y  t
|t d¡ƒ d S )Nzwin64python2.npyÚdatazReading.*this warning\.©Úmatchr   )rr   rs   rt   ÚdirnameÚ__file__ÚpytestÚwarnsÚUserWarningrc   r   r   rd   )Úfnamers   r–   rD   rD   rE   Ú%test_python2_python3_interoperability  s
    (rŸ   c               	   C   s„  t j t j t¡d¡} tjd tddgtd}dD ]L}t j | |¡}dD ]¨}tj	|d|d}| 
d	¡rx|d
 }| ¡  n|}|dkrÔ| d¡rÔtt|d tƒƒ t|d d… |d d… ƒ t|d  |¡|d ƒ qHtt|d tƒƒ t||ƒ qH| d¡r0| 
d	¡rVtj	|dd}tt|jd
ƒ | ¡  tj	|dddd}tt|jd
ƒ | ¡  q0tttj	|dd tttj	|dddd q0d 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©rK   Úencodingz.npzr   r£   Zpy2r   r   rJ   F)rK   Úfix_importsr¥   )rr   rs   rt   r™   rš   rc   Úarrayr’   r^   r   ÚendswithÚcloseÚ
startswithr   Ú
isinstancere   r   Úencoder¢   r   ÚUnicodeErrorÚ__getitem__ÚImportError)Údata_dirÚexpectedrž   rs   r¥   Zdata_fr–   rD   rD   rE   Útest_pickle_python2_python3  sJ    
ÿþ




ÿ

ÿ
þr²   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 sz0    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   rJ   )rr   rs   rt   r™   rš   r   r`   rc   r   r®   Úsaver§   r^   )r{   r°   rs   rR   rD   rD   rE   Útest_pickle_disallowK  s    
ÿ,ÿr´   )r   r   Úi1)r‰   rŠ   r‹   r   )r    )r   r8   r   r9   c                 C   s8   t  | j¡}t|| ƒ t d| ¡}t|ƒ}t||ƒ d S )Nr   )r   Zdescr_to_dtypeÚdescrrY   rc   r‘   rU   r   )r   Údt1r„   rT   rD   rD   rE   Útest_descr_to_dtypeZ  s
    2
r¸   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 s„0    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   s   g | ]}d | d t f‘qS ©z%déd   ©Úfloat©Ú.0r|   rD   rD   rE   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©r/   r   )r   r’   rc   rd   r   rM   ÚwarningsÚcatch_warningsÚfilterwarningsr   r   ÚcategoryÚseekÚreadlineÚlenÚARRAY_ALIGNrO   r   r   r`   )rR   r   rŒ   ÚwÚheaderÚnrD   rD   rE   Útest_version_2_0’  s    0


rØ   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X}t ddt¡ tj	|d|j
|jd d
}t|d jtu ƒ ||d< | ¡  W d   ƒ n1 s0    Y  tj	|ddd}t||ƒ d S )Nc                 S   s   g | ]}d | d t f‘qS r¹   r»   r½   rD   rD   rE   r¿   ®  rÀ   z+test_version_2_0_memmap.<locals>.<listcomp>rÁ   rÂ   r   zversion2_01.npyzversion2_02.npyrk   rÌ   )rl   r   rm   rÅ   rÃ   .rp   rÉ   )rl   rË   TrÆ   rÈ   r   r   )r’   rc   rd   rr   rs   rt   r   r`   r   ry   r   rm   rz   r   rÍ   rÎ   rÏ   r   r   rÐ   )r{   r   rŒ   Ztf1Ztf2r~   rÕ   rD   rD   rE   Útest_version_2_0_memmap«  s0    ÿÿ
ÿ(rÙ   Ú	mmap_moderp   c                 C   s  t j | d¡}tjddd d d}tjtdd t ||¡ W d   ƒ n1 sT0    Y  tj	t
d	d tj||d
 W d   ƒ n1 s0    Y  tj	t
d	d  tj||dd W d   ƒ n1 sÎ0    Y  tj||dd}t||ƒ tj||dd}t||ƒ d S )Nzlarge_header.npyr/   úi,é'  r|   r   ú.*format 2.0r—   úHeader.*large)rÚ   é N  )rÚ   rË   T)rÚ   rK   é ¿ )rr   rs   rt   rc   r§   r›   rœ   r   r³   Úraisesr`   r   r   )r{   rÚ   rR   rQ   ÚresrD   rD   rE   Útest_huge_headerÊ  s    *,.
rã   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 sV0    Y  tj	t
d
d t |¡d  W d   ƒ n1 s’0    Y  tj	t
d
d" tj|ddd  W d   ƒ n1 sÒ0    Y  tj|ddd }t||ƒ tj|ddd }t||ƒ d S )Nzlarge_header.npzr/   rÛ   rÜ   r|   r   rÝ   r—   ra   rÞ   rQ   rß   rÊ   TrJ   rà   )rr   rs   rt   rc   r§   r›   rœ   r   r“   rá   r`   r   r   )r{   rR   rQ   râ   rD   rD   rE   Útest_huge_header_npzÞ  s    ,,0
rä   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 qp1 s¤0    Y  qpd S )Nr/   rÌ   rÄ   rÃ   ))r/   r/   )r   r   )r   r/   r   )éÿ   rå   z we only support format version.*)r   rc   Úaranger   rM   r   r`   )rR   rQ   Zbad_versionsrÅ   rD   rD   rE   Útest_write_versionò  s    
ÿrç   )s   “NUMPYs   “NUMPY  s   “NUMPY s   “NUMPY s   “NUMPYs   “NUMPYÿÿ)s   ’NUMPY s    NUMPY s   “numpy s   “MATLB s   “NUMPYs   “NUMPYrÀ   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   rˆ   r   rÌ   rÄ   rÃ   r   )r   rc   rd   r¼   r   rM   rÑ   Z
read_magicr   ÚtellÚ	MAGIC_LEN)Ús1Ús2rQ   Zversion1Zversion2rD   rD   rE   Útest_read_magic  s    



rí   c                  C   s$   t D ]} t| ƒ}tttj|ƒ qd S rV   )Úmalformed_magicr   r   r`   r   rO   ©ÚmagicrR   rD   rD   rE   Útest_read_magic_bad_magic4  s    rñ   c                  C   s(   t t D ]} t| ƒ}tttj|ƒ qd S rV   )Úbad_version_magicrî   r   r   r`   r   rO   rï   rD   rD   rE   Útest_read_version_1_0_bad_magic:  s    ró   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   r/   é   )r   r`   r   rð   rD   rD   rD   rE   Útest_bad_magic_args@  s    rõ   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©rm   rn   r¶   A   xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxrô   r¶   )r   Útupler   Úwrite_array_header_1_0r   r`   ©ÚsrŒ   rD   rD   rE   Útest_large_headerG  s    rû   c                  C   sr   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 )Nrè   r   rÌ   rÄ   r   F)r   rc   rd   r¼   r   rM   rÑ   rê   Úread_array_header_1_0r   ré   rÔ   ©rú   rQ   rm   Zfortranr   rD   rD   rE   Útest_read_array_header_1_0Q  s    rþ   c                  C   sr   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 )Nrè   r   rÃ   rÄ   r   F)r   rc   rd   r¼   r   rM   rÑ   rê   Zread_array_header_2_0r   ré   rÔ   rý   rD   rD   rE   Útest_read_array_header_2_0^  s    rÿ   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), }                    
©r/   r   Fr   r   )rm   rn   r¶   Zextrakey)r   r   r`   r   rü   rø   rù   rD   rD   rE   Útest_bad_headerk  s$    ÿýr  c                 C   sþ   t jdkst jdkrt d¡ tj | d¡}zdd l}| ddd|g¡ W n t	yf   t d	¡ Y n0 t
|d
ƒ0}| d¡ t d¡}t ||¡ W d   ƒ n1 s¨0    Y  t
|dƒ$}| d¡ t |¡}W d   ƒ n1 sæ0    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 filerj   l        r:   ro   )ÚsysÚplatformr›   Úskiprr   rs   rt   Ú
subprocessÚ
check_callÚ	Exceptionru   rÑ   rc   ræ   r³   r   r   )r{   Ztf_nameÚsprR   rŒ   rp   rD   rD   rE   Útest_large_file_supportˆ  s     


*
(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y4   t d¡ Y n0 tj | d¡}t	|dƒ}t j
||d W d   ƒ n1 sr0    Y  ~t	|dƒ}t  |¡d }W d   ƒ n1 s¬0    Y  |j|ksÄJ ‚d S )	N)i   @r   r   zCould not create large fileZlarge_archiverj   ra   ro   rQ   )rc   ÚemptyÚuint8ÚMemoryErrorr›   r  rr   rs   rt   ru   r“   r   rm   )r{   rm   r†   rž   rR   Únew_arD   rD   rE   Útest_large_archive¡  s    ,,r  c                 C   sF   t j | d¡}t |¡ t |¡}W d   ƒ n1 s80    Y  d S )Nznothing.npz)rr   rs   rt   rc   r“   r   )r{   rž   ZnpsrD   rD   rE   Útest_empty_npz¼  s    
r  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\0    Y  t|d	ƒ}t 	|¡}W d   ƒ n1 s0    Y  t
||ƒ t|dƒH}ttƒ  tj||d d W d   ƒ n1 sÞ0    Y  W d   ƒ n1 sü0    Y  d S )
N)©r/   r   r  r  r  Úintu   æ•´å½¢r   zunicode.npyrj   )r   r   rÄ   ro   )rc   r§   r  rr   rs   rt   ru   r   rM   rO   r   r   r   )r{   rQ   rž   rR   rT   rD   rD   rE   Útest_unicode_field_namesÄ  s    
þû	.(

r  c                  C   s”   g d¢g d¢g d¢g d¢fD ]r\} }}dd„ t tjƒD ƒD ]R}tƒ }t || rVd|fn|df| t d| tfg¡d	œ¡ t| 	¡ ƒ|ks:J ‚q:qd S )
N)Fé   é€   )Fé   éÀ   )Tr  r  )Té   r  c                 S   s   g | ]}d | ‘qS )r   rD   r½   rD   rD   rE   r¿   ß  rÀ   z+test_header_growth_axis.<locals>.<listcomp>r   ú rö   )
r’   r   ZGROWTH_AXIS_MAX_DIGITSr   rø   rc   r   r  rÓ   rN   )Zis_fortran_arrayZdtype_spaceZexpected_header_lengthrA   r}   rD   rD   rE   Útest_header_growth_axisÛ  s    ÿýr  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>0    Y  | d¡ t  |¡}ddlm	} t
||ƒ ||jƒ|jus†J ‚||jƒ|ju sšJ ‚d S )Nr   r   r   )Údrop_metadata)rc   rd   r   r   r   r³   rÑ   r   Znumpy.lib._utils_implr!  r   r   )r   rQ   ÚbufrT   r!  rD   rD   rE   Útest_metadata_dtypeé  s    
*


r#  )lÚ__doc__r  rr   rÍ   r›   Úior   Únumpyrc   Znumpy.testingr   r   r   r   r   r   r	   Znumpy.testing._private.utilsr
   Z	numpy.libr   r  Zint8Zuint16Úint16Zuint32Úint32Zuint64Úint64Úfloat32Úfloat64Z	complex64Z
complex128r^   ZscalarsrZ   ZscalarZendianr   Znewbyteorderræ   ZastypeÚbasicÚextendr§   ZreshapeÚTZPdescrZPbufferTZNdescrZNbufferTr‘   r[   r;   rU   rW   rX   rY   r]   r_   rb   rg   ÚmarkZskipifZslowr   r…   r·   Zdt2Zdt3Zdt4Zdt5Zdt6Zparametrizer”   Úversion_infoZxfailrŸ   r²   r´   r  r¸   rØ   rÙ   rã   rä   rç   rò   rî   rí   rñ   ró   rõ   rû   rþ   rÿ   r  r  Zintpr   r  r  r  r  r¼   ÚimplementationrÅ   r#  rD   rD   rD   rE   Ú<module>   s„    $ó
ô
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
ÿú
ÿ