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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_PYPY)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	   ZInfo)ÚvalueÚc16)Úy2r   ZInfo2)ÚnameÚS2)r   r   r   )Zy3r   r   )Zz3Zu4r   )Zz2Zb1)Úcolorr"   Úinfo)ÚNameZU8)ÚValuer   ù              @Únny              @é   ÚNNTÚcc)r*   r'   ù              @Zooy              @ÚOOFÚdd)r-   r,   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sizer6   ©Ú	__class__© ú?/tmp/pip-unpacked-wheel-c1z6a0q8/numpy/lib/tests/test_format.pyr9   ‘  s    zBytesIOSRandomSize.read)N)Ú__name__Ú
__module__Ú__qualname__r9   Ú__classcell__r>   r>   r<   r?   r5     s   r5   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arr2r>   r>   r?   Ú	roundtrip—  s
    rO   c                 C   s,   t ƒ }t || ¡ t| ¡ ƒ}t |¡}|S ©N)r   r
   rG   r5   rH   rI   rJ   r>   r>   r?   Úroundtrip_randsizeŸ  s
    
rQ   c                 C   s4   t ƒ }t || ¡ t | ¡ dd… ƒ}t |¡}|S )Nr   r   rF   rJ   r>   r>   r?   Úroundtrip_truncated§  s
    
rR   c                 C   s   t | |kƒ d S rP   )r   )Zo1Zo2r>   r>   r?   Úassert_equal_°  s    rS   c                  C   s$   t t D ]} t| ƒ}t| |ƒ qd S rP   )Úbasic_arraysÚrecord_arraysrO   r   ©rK   rN   r>   r>   r?   Útest_roundtrip´  s    rW   c                  C   s.   t t D ] } | jtkrt| ƒ}t| |ƒ qd S rP   )rT   rU   r   ÚobjectrQ   r   rV   r>   r>   r?   Útest_roundtrip_randsizeº  s    
rY   c                  C   s$   t D ]} | jtkrttt| ƒ qd S rP   )rT   r   rX   r   Ú
ValueErrorrR   ©rK   r>   r>   r?   Útest_roundtrip_truncatedÁ  s    
r\   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_SIZErO   r   )Zlong_str_arrZlong_str_arr2r>   r>   r?   Útest_long_strÇ  s    ra   c           
   
   C   s  t tt ƒD ]ö\}}|jjrqtj | d|› d¡}tj | d|› d¡}t|dƒ}t	 
||¡ W 5 Q R X |jjo||jj }t	j|d|j|j|d}||d< | ¡  t|dƒ}| ¡ }W 5 Q R X t|dƒ}| ¡ }	W 5 Q R X t||	ƒ t	j|d	d
}| ¡  qd S )NÚnormalz.npyZmemmapÚwbúw+)Úmoder   ÚshapeÚfortran_order.ÚrbÚr)re   )Ú	enumeraterT   rU   r   Z	hasobjectÚosÚpathÚjoinÚopenr
   rG   ÚflagsÚf_contiguousÚc_contiguousÚopen_memmaprf   Úflushr9   rS   )
ÚtmpdirÚirK   ZnfnZmfnÚfprg   ÚmaZnormal_bytesZmemmap_bytesr>   r>   r?   Útest_memmap_roundtripÎ  s,    ÿ ÿ
rx   c              	   C   sV   t j dd¡}tj | d¡}t j||d t  |¡}|d }W 5 Q R X t||ƒ d S )NéÈ   zcompressed.npzr[   rK   )	r]   r6   Zrandrk   rl   rm   Zsavez_compressedÚloadr   )rt   rK   Únpz_fileÚnpzÚarr1r>   r>   r?   Útest_compressed_roundtripí  s    r~   z
i1, i4, i1)ZalignÚaÚbr   é   )ÚnamesÚformatsÚoffsetsr1   Úd)r‚   rƒ   Ú ZaaZbb)r‚   rƒ   r„   Útitles)r‚   rƒ   ÚitemsizeÚdtc              	   C   sn   t  d|¡}tdƒD ]}|d ||< qtj | d¡}t j||d t  |¡}|d }W 5 Q R X t||ƒ d S )Nr   r4   zaligned.npzr[   rK   )	r]   ÚzerosÚrangerk   rl   rm   Úsavezrz   r   )rt   r‰   rK   ru   r{   r|   r}   r>   r>   r?   Útest_load_padded_dtype  s    r   c                  C   s:   d} t j t j t¡d| ¡}t |¡}t|t d¡ƒ d S )Nzwin64python2.npyÚdatar   )	rk   rl   rm   ÚdirnameÚ__file__r]   rz   r   r^   )Úfnamerl   rŽ   r>   r>   r?   Ú%test_python2_python3_interoperability  s    
r’   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 )NrŽ   u   å„ªè‰¯s   ä¸è‰¯r   )úpy2-objarr.npyúpy2-objarr.npzzpy3-objarr.npyzpy3-objarr.npz)ÚbytesÚlatin1T©rE   Úencodingz.npzr   r–   Zpy2r   r   rD   F)rE   Úfix_importsr˜   )rk   rl   rm   r   r   r]   Úarrayr‹   rX   rz   ÚendswithÚcloseÚ
startswithr   Ú
isinstancer_   r   Úencoder•   r   ÚUnicodeErrorÚ__getitem__ÚImportError)Údata_dirÚexpectedr‘   rl   r˜   Zdata_frŽ   r>   r>   r?   Útest_pickle_python2_python3  sL    
ÿþ




ÿ

ÿ
 þr¥   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 5 Q R X t j | d¡}tttj
|tjd gtd	dd
 d S )NrŽ   r“   Fr–   r—   r”   r   zpickle-disabled.npyr   rD   )rk   rl   rm   r   r   r   rZ   r]   rz   r¡   Úsaverš   rX   )rt   r£   rl   rL   r>   r>   r?   Útest_pickle_disallowF  s    
 ÿÿr§   )r   r   Úi1)r‚   rƒ   r„   rˆ   )r   )r   r2   r   r3   c                 C   s8   t  | j¡}t|| ƒ t d| ¡}t|ƒ}t||ƒ d S )Nr   )r
   Zdescr_to_dtypeÚdescrrS   r]   rŠ   rO   r   )r‰   Údt1r}   rN   r>   r>   r?   Útest_descr_to_dtypeU  s
    2
r«   c               	   C   sÚ   t ƒ } dd„ tdƒD ƒ}tjd|d}tj| |dd tjdd	2}t d
dt	¡ t | |¡ t
|d jt	kƒ W 5 Q R X |  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.0ru   r>   r>   r?   Ú
<listcomp>  s     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‹   r]   r^   r
   rG   ÚwarningsÚcatch_warningsÚfilterwarningsÚUserWarningr   ÚcategoryÚseekÚreadlineÚlenÚARRAY_ALIGNrI   r   r   rZ   )rL   r‰   r…   ÚwÚheaderÚnr>   r>   r?   Útest_version_2_0  s    


rË   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N}t ddt¡ tj	|d|j
|jd d
}t|d jtkƒ ||d< | ¡  W 5 Q R X tj	|ddd}t||ƒ d S )Nc                 S   s   g | ]}d | d t f‘qS r¬   r®   r°   r>   r>   r?   r²   ¨  s     z+test_version_2_0_memmap.<locals>.<listcomp>r³   r´   r   zversion2_01.npyzversion2_02.npyrd   r¾   )re   r   rf   r·   rµ   .ri   r»   )re   r½   Tr¸   rº   r†   r   )r‹   r]   r^   rk   rl   rm   r   rZ   r
   rr   r   rf   rs   r   r¿   rÀ   rÁ   rÂ   r   rÃ   )rt   r‰   r…   Ztf1Ztf2rw   rÈ   r>   r>   r?   Útest_version_2_0_memmap¦  s6     ÿ ÿ
 ÿrÌ   Ú	mmap_moderi   c              	   C   sÔ   t j | d¡}tjddd d d}tjtdd t ||¡ W 5 Q R X tj	t
d	d tj||d
 W 5 Q R X tj	t
d	d tj||dd W 5 Q R X tj||dd}t||ƒ tj||dd}t||ƒ d S )Nzlarge_header.npyr)   úi,é'  ru   r   ú.*format 2.0©ÚmatchúHeader.*large)rÍ   é N  )rÍ   r½   T)rÍ   rE   é ¿ )rk   rl   rm   r]   rš   ÚpytestÚwarnsrÂ   r¦   ÚraisesrZ   rz   r   )rt   rÍ   rL   rK   Úresr>   r>   r?   Útest_huge_headerÄ  s    
rÚ   c              	   C   sÜ   t j | d¡}tjddd d d}tjtdd tj||d	 W 5 Q R X tj	t
d
d t |¡d  W 5 Q R X tj	t
d
d tj|ddd  W 5 Q R X tj|ddd }t||ƒ tj|ddd }t||ƒ d S )Nzlarge_header.npzr)   rÎ   rÏ   ru   r   rÐ   rÑ   r[   rÓ   rK   rÔ   r¼   TrD   rÕ   )rk   rl   rm   r]   rš   rÖ   r×   rÂ   rŒ   rØ   rZ   rz   r   )rt   rL   rK   rÙ   r>   r>   r?   Útest_huge_header_npzØ  s    
rÛ   c               
   C   s¦   t ƒ } t d¡}tj| |dd t | |¡ tj| |d d t | |¡ tj| |dd t | |¡ ddddd	g}|D ]*}ttd
ƒ tj| ||d W 5 Q R X qvd S )Nr)   r¾   r¶   rµ   )r)   r)   )r   r   )r   r)   r   )éÿ   rÜ   z we only support format version.*)r   r]   Úaranger
   rG   r   rZ   )rL   rK   Zbad_versionsr·   r>   r>   r?   Útest_write_versionì  s&    
ûÿrÞ   s   “NUMPYs   “NUMPY  s   “NUMPY s   “NUMPY s   “NUMPYs   “NUMPYÿÿs   ’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   r¾   r¶   rµ   r   )r   r]   r^   r¯   r
   rG   rÄ   Z
read_magicr   ÚtellÚ	MAGIC_LEN)Ús1Ús2rK   Zversion1Zversion2r>   r>   r?   Útest_read_magic  s    



rå   c                  C   s$   t D ]} t| ƒ}tttj|ƒ qd S rP   )Úmalformed_magicr   r   rZ   r
   rI   ©ÚmagicrL   r>   r>   r?   Útest_read_magic_bad_magic.  s    ré   c                  C   s(   t t D ]} t| ƒ}tttj|ƒ qd S rP   )Úbad_version_magicræ   r   r   rZ   r
   rI   rç   r>   r>   r?   Útest_read_version_1_0_bad_magic4  s    rë   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   rZ   r
   rè   r>   r>   r>   r?   Útest_bad_magic_args:  s    rí   c                  C   sF   t ƒ } dddœ}t | |¡ t ƒ } dddd dœ}tttj| |ƒ d S )Nr)   r   )r   r€   A   xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxrì   )r   r€   r1   )r   r
   Úwrite_array_header_1_0r   rZ   ©Úsr…   r>   r>   r?   Útest_large_headerA  s    
rñ   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 )Nrà   r   r¾   r¶   r   F)r   r]   r^   r¯   r
   rG   rÄ   râ   Úread_array_header_1_0r   rá   rÇ   ©rð   rK   rf   Zfortranr   r>   r>   r?   Útest_read_array_header_1_0K  s    rô   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 )Nrà   r   rµ   r¶   r   F)r   r]   r^   r¯   r
   rG   rÄ   râ   Zread_array_header_2_0r   rá   rÇ   ró   r>   r>   r?   Útest_read_array_header_2_0X  s    rõ   c                  C   sœ   t 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œ}t ƒ } t | |¡ tttj| ƒ dddddœ}t ƒ } t | |¡ tttj| ƒ d S )	Nó   1s    ©r)   r   r   )rf   r©   Fr   )rf   rg   r©   Zextrakey)r   r   rZ   r
   rò   rî   rï   r>   r>   r?   Útest_bad_headere  s(    ÿýrø   c              	   C   sØ   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	k
rh   t d	¡ Y nX t
|d
ƒ&}| d¡ t d¡}t ||¡ W 5 Q R X t
|dƒ}| d¡ t |¡}W 5 Q R X t||ƒ d S )NÚwin32Úcygwinz)Unknown if Windows has sparse filesystemsZsparse_filer   Útruncatez-sZ
5368709120zCould not create 5GB large filerc   l        r4   rh   )ÚsysÚplatformrÖ   Úskiprk   rl   rm   Ú
subprocessÚ
check_callÚ	Exceptionrn   rÄ   r]   rÝ   r¦   rz   r   )rt   Ztf_nameÚsprL   r…   ri   r>   r>   r?   Útest_large_file_support€  s     



r  ztest requires 64-bit system)Úreasonl        )Z
free_bytesc              	   C   s¢   d}zt j|t jd}W n tk
r6   t d¡ Y nX tj | d¡}t	|dƒ}t j
||d W 5 Q R X ~t	|dƒ}t  |¡d }W 5 Q R X |j|ksžt‚d S )	N)i   @r   r   zCould not create large fileZlarge_archiverc   r[   rh   rK   )r]   ÚemptyÚuint8ÚMemoryErrorrÖ   rþ   rk   rl   rm   rn   rŒ   rz   rf   ÚAssertionError)rt   rf   r   r‘   rL   Únew_ar>   r>   r?   Útest_large_archive™  s    r
  c              	   C   s2   t j | d¡}t |¡ t |¡}W 5 Q R X d S )Nznothing.npz)rk   rl   rm   r]   rŒ   rz   )rt   r‘   Znpsr>   r>   r?   Útest_empty_npz³  s    
r  c              
   C   s¾   t jddddgdtfdtfgd}tj | d¡}t|dƒ}tj||dd	 W 5 Q R X t|d
ƒ}t 	|¡}W 5 Q R X t
||ƒ t|dƒ*}ttƒ tj||d d	 W 5 Q R X W 5 Q R X d S )N)r)   r   r÷   Úintu   æ•´å½¢r   zunicode.npyrc   )r   r   r¶   rh   )r]   rš   r  rk   rl   rm   rn   r
   rG   rI   r   r   rÂ   )rt   rK   r‘   rL   rN   r>   r>   r?   Útest_unicode_field_names»  s&    üþû	

r  zdt, failZS3ZsomeÚstuff)ÚmetadataZsubarrayr   )é   r   r   zPyPy bug in error formattingc              	   C   s¢   t jd| d}tƒ }ttƒ t  ||¡ W 5 Q R X | d¡ |rbttƒ t  	|¡ W 5 Q R X n<t  	|¡}ddl
m} t||ƒ ||jƒst‚||jƒržt‚d S )Nr   r   r   )Ú_has_metadata)r]   r^   r   r   rÂ   r¦   rÄ   r   rZ   rz   Znumpy.lib.formatr  r   r   r  )r‰   ZfailrK   ÚbufrN   r  r>   r>   r?   Útest_metadata_dtypeÓ  s    




r  )hÚ__doc__rü   rk   r¿   rÖ   Úior   Znumpyr]   Znumpy.testingr   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
complex128rX   ZscalarsrT   ZscalarZendianr   ZnewbyteorderrÝ   ZastypeÚbasicÚextendrš   ZreshapeÚTZPdescrZPbufferTZNdescrZNbufferTrŠ   rU   r5   rO   rQ   rR   rS   rW   rY   r\   ra   ÚmarkZslowrx   r~   rª   Zdt2Zdt3Zdt4Zdt5Zdt6Zparametrizer   r’   r¥   r§   r  r«   rË   rÌ   rÚ   rÛ   rÞ   rê   ræ   rå   ré   rë   rí   rñ   rô   rõ   rø   r  ZskipifZintprˆ   r
  r  r  r¯   Úimplementationr·   r  r>   r>   r>   r?   Ú<module>   sº     ó
ô
ýýü÷
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

ú	ù

ÿÿÿ
 ÿþú
ÿ