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582 lines
22 KiB
Python
582 lines
22 KiB
Python
from __future__ import division, absolute_import, print_function
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import os
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import sys
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import copy
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import pytest
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from numpy import (
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array, alltrue, ndarray, zeros, dtype, intp, clongdouble
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)
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from numpy.testing import assert_, assert_equal
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from numpy.core.multiarray import typeinfo
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from . import util
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wrap = None
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def setup_module():
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"""
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Build the required testing extension module
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"""
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global wrap
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# Check compiler availability first
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if not util.has_c_compiler():
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pytest.skip("No C compiler available")
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if wrap is None:
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config_code = """
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config.add_extension('test_array_from_pyobj_ext',
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sources=['wrapmodule.c', 'fortranobject.c'],
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define_macros=[])
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"""
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d = os.path.dirname(__file__)
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src = [os.path.join(d, 'src', 'array_from_pyobj', 'wrapmodule.c'),
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os.path.join(d, '..', 'src', 'fortranobject.c'),
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os.path.join(d, '..', 'src', 'fortranobject.h')]
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wrap = util.build_module_distutils(src, config_code,
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'test_array_from_pyobj_ext')
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def flags_info(arr):
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flags = wrap.array_attrs(arr)[6]
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return flags2names(flags)
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def flags2names(flags):
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info = []
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for flagname in ['CONTIGUOUS', 'FORTRAN', 'OWNDATA', 'ENSURECOPY',
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'ENSUREARRAY', 'ALIGNED', 'NOTSWAPPED', 'WRITEABLE',
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'WRITEBACKIFCOPY', 'UPDATEIFCOPY', 'BEHAVED', 'BEHAVED_RO',
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'CARRAY', 'FARRAY'
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]:
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if abs(flags) & getattr(wrap, flagname, 0):
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info.append(flagname)
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return info
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class Intent(object):
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def __init__(self, intent_list=[]):
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self.intent_list = intent_list[:]
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flags = 0
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for i in intent_list:
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if i == 'optional':
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flags |= wrap.F2PY_OPTIONAL
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else:
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flags |= getattr(wrap, 'F2PY_INTENT_' + i.upper())
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self.flags = flags
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def __getattr__(self, name):
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name = name.lower()
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if name == 'in_':
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name = 'in'
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return self.__class__(self.intent_list + [name])
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def __str__(self):
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return 'intent(%s)' % (','.join(self.intent_list))
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def __repr__(self):
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return 'Intent(%r)' % (self.intent_list)
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def is_intent(self, *names):
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for name in names:
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if name not in self.intent_list:
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return False
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return True
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def is_intent_exact(self, *names):
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return len(self.intent_list) == len(names) and self.is_intent(*names)
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intent = Intent()
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_type_names = ['BOOL', 'BYTE', 'UBYTE', 'SHORT', 'USHORT', 'INT', 'UINT',
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'LONG', 'ULONG', 'LONGLONG', 'ULONGLONG',
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'FLOAT', 'DOUBLE', 'CFLOAT']
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_cast_dict = {'BOOL': ['BOOL']}
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_cast_dict['BYTE'] = _cast_dict['BOOL'] + ['BYTE']
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_cast_dict['UBYTE'] = _cast_dict['BOOL'] + ['UBYTE']
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_cast_dict['BYTE'] = ['BYTE']
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_cast_dict['UBYTE'] = ['UBYTE']
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_cast_dict['SHORT'] = _cast_dict['BYTE'] + ['UBYTE', 'SHORT']
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_cast_dict['USHORT'] = _cast_dict['UBYTE'] + ['BYTE', 'USHORT']
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_cast_dict['INT'] = _cast_dict['SHORT'] + ['USHORT', 'INT']
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_cast_dict['UINT'] = _cast_dict['USHORT'] + ['SHORT', 'UINT']
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_cast_dict['LONG'] = _cast_dict['INT'] + ['LONG']
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_cast_dict['ULONG'] = _cast_dict['UINT'] + ['ULONG']
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_cast_dict['LONGLONG'] = _cast_dict['LONG'] + ['LONGLONG']
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_cast_dict['ULONGLONG'] = _cast_dict['ULONG'] + ['ULONGLONG']
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_cast_dict['FLOAT'] = _cast_dict['SHORT'] + ['USHORT', 'FLOAT']
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_cast_dict['DOUBLE'] = _cast_dict['INT'] + ['UINT', 'FLOAT', 'DOUBLE']
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_cast_dict['CFLOAT'] = _cast_dict['FLOAT'] + ['CFLOAT']
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# 32 bit system malloc typically does not provide the alignment required by
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# 16 byte long double types this means the inout intent cannot be satisfied
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# and several tests fail as the alignment flag can be randomly true or fals
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# when numpy gains an aligned allocator the tests could be enabled again
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if ((intp().dtype.itemsize != 4 or clongdouble().dtype.alignment <= 8) and
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sys.platform != 'win32'):
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_type_names.extend(['LONGDOUBLE', 'CDOUBLE', 'CLONGDOUBLE'])
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_cast_dict['LONGDOUBLE'] = _cast_dict['LONG'] + \
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['ULONG', 'FLOAT', 'DOUBLE', 'LONGDOUBLE']
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_cast_dict['CLONGDOUBLE'] = _cast_dict['LONGDOUBLE'] + \
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['CFLOAT', 'CDOUBLE', 'CLONGDOUBLE']
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_cast_dict['CDOUBLE'] = _cast_dict['DOUBLE'] + ['CFLOAT', 'CDOUBLE']
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class Type(object):
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_type_cache = {}
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def __new__(cls, name):
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if isinstance(name, dtype):
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dtype0 = name
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name = None
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for n, i in typeinfo.items():
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if not isinstance(i, type) and dtype0.type is i.type:
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name = n
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break
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obj = cls._type_cache.get(name.upper(), None)
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if obj is not None:
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return obj
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obj = object.__new__(cls)
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obj._init(name)
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cls._type_cache[name.upper()] = obj
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return obj
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def _init(self, name):
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self.NAME = name.upper()
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info = typeinfo[self.NAME]
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self.type_num = getattr(wrap, 'NPY_' + self.NAME)
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assert_equal(self.type_num, info.num)
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self.dtype = info.type
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self.elsize = info.bits / 8
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self.dtypechar = info.char
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def cast_types(self):
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return [self.__class__(_m) for _m in _cast_dict[self.NAME]]
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def all_types(self):
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return [self.__class__(_m) for _m in _type_names]
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def smaller_types(self):
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bits = typeinfo[self.NAME].alignment
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types = []
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for name in _type_names:
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if typeinfo[name].alignment < bits:
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types.append(Type(name))
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return types
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def equal_types(self):
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bits = typeinfo[self.NAME].alignment
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types = []
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for name in _type_names:
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if name == self.NAME:
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continue
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if typeinfo[name].alignment == bits:
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types.append(Type(name))
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return types
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def larger_types(self):
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bits = typeinfo[self.NAME].alignment
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types = []
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for name in _type_names:
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if typeinfo[name].alignment > bits:
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types.append(Type(name))
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return types
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class Array(object):
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def __init__(self, typ, dims, intent, obj):
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self.type = typ
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self.dims = dims
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self.intent = intent
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self.obj_copy = copy.deepcopy(obj)
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self.obj = obj
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# arr.dtypechar may be different from typ.dtypechar
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self.arr = wrap.call(typ.type_num, dims, intent.flags, obj)
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assert_(isinstance(self.arr, ndarray), repr(type(self.arr)))
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self.arr_attr = wrap.array_attrs(self.arr)
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if len(dims) > 1:
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if self.intent.is_intent('c'):
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assert_(intent.flags & wrap.F2PY_INTENT_C)
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assert_(not self.arr.flags['FORTRAN'],
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repr((self.arr.flags, getattr(obj, 'flags', None))))
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assert_(self.arr.flags['CONTIGUOUS'])
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assert_(not self.arr_attr[6] & wrap.FORTRAN)
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else:
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assert_(not intent.flags & wrap.F2PY_INTENT_C)
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assert_(self.arr.flags['FORTRAN'])
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assert_(not self.arr.flags['CONTIGUOUS'])
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assert_(self.arr_attr[6] & wrap.FORTRAN)
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if obj is None:
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self.pyarr = None
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self.pyarr_attr = None
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return
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if intent.is_intent('cache'):
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assert_(isinstance(obj, ndarray), repr(type(obj)))
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self.pyarr = array(obj).reshape(*dims).copy()
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else:
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self.pyarr = array(array(obj, dtype=typ.dtypechar).reshape(*dims),
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order=self.intent.is_intent('c') and 'C' or 'F')
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assert_(self.pyarr.dtype == typ,
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repr((self.pyarr.dtype, typ)))
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assert_(self.pyarr.flags['OWNDATA'], (obj, intent))
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self.pyarr_attr = wrap.array_attrs(self.pyarr)
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if len(dims) > 1:
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if self.intent.is_intent('c'):
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assert_(not self.pyarr.flags['FORTRAN'])
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assert_(self.pyarr.flags['CONTIGUOUS'])
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assert_(not self.pyarr_attr[6] & wrap.FORTRAN)
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else:
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assert_(self.pyarr.flags['FORTRAN'])
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assert_(not self.pyarr.flags['CONTIGUOUS'])
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assert_(self.pyarr_attr[6] & wrap.FORTRAN)
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assert_(self.arr_attr[1] == self.pyarr_attr[1]) # nd
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assert_(self.arr_attr[2] == self.pyarr_attr[2]) # dimensions
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if self.arr_attr[1] <= 1:
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assert_(self.arr_attr[3] == self.pyarr_attr[3],
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repr((self.arr_attr[3], self.pyarr_attr[3],
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self.arr.tobytes(), self.pyarr.tobytes()))) # strides
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assert_(self.arr_attr[5][-2:] == self.pyarr_attr[5][-2:],
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repr((self.arr_attr[5], self.pyarr_attr[5]))) # descr
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assert_(self.arr_attr[6] == self.pyarr_attr[6],
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repr((self.arr_attr[6], self.pyarr_attr[6],
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flags2names(0 * self.arr_attr[6] - self.pyarr_attr[6]),
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flags2names(self.arr_attr[6]), intent))) # flags
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if intent.is_intent('cache'):
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assert_(self.arr_attr[5][3] >= self.type.elsize,
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repr((self.arr_attr[5][3], self.type.elsize)))
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else:
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assert_(self.arr_attr[5][3] == self.type.elsize,
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repr((self.arr_attr[5][3], self.type.elsize)))
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assert_(self.arr_equal(self.pyarr, self.arr))
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if isinstance(self.obj, ndarray):
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if typ.elsize == Type(obj.dtype).elsize:
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if not intent.is_intent('copy') and self.arr_attr[1] <= 1:
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assert_(self.has_shared_memory())
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def arr_equal(self, arr1, arr2):
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if arr1.shape != arr2.shape:
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return False
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s = arr1 == arr2
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return alltrue(s.flatten())
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def __str__(self):
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return str(self.arr)
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def has_shared_memory(self):
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"""Check that created array shares data with input array.
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"""
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if self.obj is self.arr:
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return True
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if not isinstance(self.obj, ndarray):
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return False
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obj_attr = wrap.array_attrs(self.obj)
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return obj_attr[0] == self.arr_attr[0]
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class TestIntent(object):
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def test_in_out(self):
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assert_equal(str(intent.in_.out), 'intent(in,out)')
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assert_(intent.in_.c.is_intent('c'))
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assert_(not intent.in_.c.is_intent_exact('c'))
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assert_(intent.in_.c.is_intent_exact('c', 'in'))
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assert_(intent.in_.c.is_intent_exact('in', 'c'))
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assert_(not intent.in_.is_intent('c'))
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class TestSharedMemory(object):
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num2seq = [1, 2]
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num23seq = [[1, 2, 3], [4, 5, 6]]
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@pytest.fixture(autouse=True, scope='class', params=_type_names)
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def setup_type(self, request):
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request.cls.type = Type(request.param)
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request.cls.array = lambda self, dims, intent, obj: \
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Array(Type(request.param), dims, intent, obj)
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def test_in_from_2seq(self):
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a = self.array([2], intent.in_, self.num2seq)
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assert_(not a.has_shared_memory())
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def test_in_from_2casttype(self):
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for t in self.type.cast_types():
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obj = array(self.num2seq, dtype=t.dtype)
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a = self.array([len(self.num2seq)], intent.in_, obj)
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if t.elsize == self.type.elsize:
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assert_(
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a.has_shared_memory(), repr((self.type.dtype, t.dtype)))
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else:
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assert_(not a.has_shared_memory(), repr(t.dtype))
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def test_inout_2seq(self):
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obj = array(self.num2seq, dtype=self.type.dtype)
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a = self.array([len(self.num2seq)], intent.inout, obj)
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assert_(a.has_shared_memory())
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try:
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a = self.array([2], intent.in_.inout, self.num2seq)
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except TypeError as msg:
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if not str(msg).startswith('failed to initialize intent'
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'(inout|inplace|cache) array'):
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raise
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else:
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raise SystemError('intent(inout) should have failed on sequence')
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def test_f_inout_23seq(self):
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obj = array(self.num23seq, dtype=self.type.dtype, order='F')
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shape = (len(self.num23seq), len(self.num23seq[0]))
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a = self.array(shape, intent.in_.inout, obj)
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assert_(a.has_shared_memory())
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obj = array(self.num23seq, dtype=self.type.dtype, order='C')
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shape = (len(self.num23seq), len(self.num23seq[0]))
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try:
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a = self.array(shape, intent.in_.inout, obj)
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except ValueError as msg:
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if not str(msg).startswith('failed to initialize intent'
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'(inout) array'):
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raise
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else:
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raise SystemError(
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'intent(inout) should have failed on improper array')
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def test_c_inout_23seq(self):
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obj = array(self.num23seq, dtype=self.type.dtype)
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shape = (len(self.num23seq), len(self.num23seq[0]))
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a = self.array(shape, intent.in_.c.inout, obj)
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assert_(a.has_shared_memory())
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|
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def test_in_copy_from_2casttype(self):
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for t in self.type.cast_types():
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obj = array(self.num2seq, dtype=t.dtype)
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a = self.array([len(self.num2seq)], intent.in_.copy, obj)
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assert_(not a.has_shared_memory(), repr(t.dtype))
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def test_c_in_from_23seq(self):
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a = self.array([len(self.num23seq), len(self.num23seq[0])],
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intent.in_, self.num23seq)
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assert_(not a.has_shared_memory())
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|
|
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def test_in_from_23casttype(self):
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for t in self.type.cast_types():
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obj = array(self.num23seq, dtype=t.dtype)
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a = self.array([len(self.num23seq), len(self.num23seq[0])],
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intent.in_, obj)
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assert_(not a.has_shared_memory(), repr(t.dtype))
|
|
|
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def test_f_in_from_23casttype(self):
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for t in self.type.cast_types():
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obj = array(self.num23seq, dtype=t.dtype, order='F')
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a = self.array([len(self.num23seq), len(self.num23seq[0])],
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intent.in_, obj)
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if t.elsize == self.type.elsize:
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assert_(a.has_shared_memory(), repr(t.dtype))
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else:
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assert_(not a.has_shared_memory(), repr(t.dtype))
|
|
|
|
def test_c_in_from_23casttype(self):
|
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for t in self.type.cast_types():
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obj = array(self.num23seq, dtype=t.dtype)
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a = self.array([len(self.num23seq), len(self.num23seq[0])],
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intent.in_.c, obj)
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if t.elsize == self.type.elsize:
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assert_(a.has_shared_memory(), repr(t.dtype))
|
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else:
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assert_(not a.has_shared_memory(), repr(t.dtype))
|
|
|
|
def test_f_copy_in_from_23casttype(self):
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for t in self.type.cast_types():
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obj = array(self.num23seq, dtype=t.dtype, order='F')
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a = self.array([len(self.num23seq), len(self.num23seq[0])],
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intent.in_.copy, obj)
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assert_(not a.has_shared_memory(), repr(t.dtype))
|
|
|
|
def test_c_copy_in_from_23casttype(self):
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for t in self.type.cast_types():
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obj = array(self.num23seq, dtype=t.dtype)
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a = self.array([len(self.num23seq), len(self.num23seq[0])],
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intent.in_.c.copy, obj)
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assert_(not a.has_shared_memory(), repr(t.dtype))
|
|
|
|
def test_in_cache_from_2casttype(self):
|
|
for t in self.type.all_types():
|
|
if t.elsize != self.type.elsize:
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continue
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obj = array(self.num2seq, dtype=t.dtype)
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shape = (len(self.num2seq),)
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a = self.array(shape, intent.in_.c.cache, obj)
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assert_(a.has_shared_memory(), repr(t.dtype))
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a = self.array(shape, intent.in_.cache, obj)
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assert_(a.has_shared_memory(), repr(t.dtype))
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|
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obj = array(self.num2seq, dtype=t.dtype, order='F')
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a = self.array(shape, intent.in_.c.cache, obj)
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assert_(a.has_shared_memory(), repr(t.dtype))
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|
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a = self.array(shape, intent.in_.cache, obj)
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assert_(a.has_shared_memory(), repr(t.dtype))
|
|
|
|
try:
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a = self.array(shape, intent.in_.cache, obj[::-1])
|
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except ValueError as msg:
|
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if not str(msg).startswith('failed to initialize'
|
|
' intent(cache) array'):
|
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raise
|
|
else:
|
|
raise SystemError(
|
|
'intent(cache) should have failed on multisegmented array')
|
|
|
|
def test_in_cache_from_2casttype_failure(self):
|
|
for t in self.type.all_types():
|
|
if t.elsize >= self.type.elsize:
|
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continue
|
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obj = array(self.num2seq, dtype=t.dtype)
|
|
shape = (len(self.num2seq),)
|
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try:
|
|
self.array(shape, intent.in_.cache, obj) # Should succeed
|
|
except ValueError as msg:
|
|
if not str(msg).startswith('failed to initialize'
|
|
' intent(cache) array'):
|
|
raise
|
|
else:
|
|
raise SystemError(
|
|
'intent(cache) should have failed on smaller array')
|
|
|
|
def test_cache_hidden(self):
|
|
shape = (2,)
|
|
a = self.array(shape, intent.cache.hide, None)
|
|
assert_(a.arr.shape == shape)
|
|
|
|
shape = (2, 3)
|
|
a = self.array(shape, intent.cache.hide, None)
|
|
assert_(a.arr.shape == shape)
|
|
|
|
shape = (-1, 3)
|
|
try:
|
|
a = self.array(shape, intent.cache.hide, None)
|
|
except ValueError as msg:
|
|
if not str(msg).startswith('failed to create intent'
|
|
'(cache|hide)|optional array'):
|
|
raise
|
|
else:
|
|
raise SystemError(
|
|
'intent(cache) should have failed on undefined dimensions')
|
|
|
|
def test_hidden(self):
|
|
shape = (2,)
|
|
a = self.array(shape, intent.hide, None)
|
|
assert_(a.arr.shape == shape)
|
|
assert_(a.arr_equal(a.arr, zeros(shape, dtype=self.type.dtype)))
|
|
|
|
shape = (2, 3)
|
|
a = self.array(shape, intent.hide, None)
|
|
assert_(a.arr.shape == shape)
|
|
assert_(a.arr_equal(a.arr, zeros(shape, dtype=self.type.dtype)))
|
|
assert_(a.arr.flags['FORTRAN'] and not a.arr.flags['CONTIGUOUS'])
|
|
|
|
shape = (2, 3)
|
|
a = self.array(shape, intent.c.hide, None)
|
|
assert_(a.arr.shape == shape)
|
|
assert_(a.arr_equal(a.arr, zeros(shape, dtype=self.type.dtype)))
|
|
assert_(not a.arr.flags['FORTRAN'] and a.arr.flags['CONTIGUOUS'])
|
|
|
|
shape = (-1, 3)
|
|
try:
|
|
a = self.array(shape, intent.hide, None)
|
|
except ValueError as msg:
|
|
if not str(msg).startswith('failed to create intent'
|
|
'(cache|hide)|optional array'):
|
|
raise
|
|
else:
|
|
raise SystemError('intent(hide) should have failed'
|
|
' on undefined dimensions')
|
|
|
|
def test_optional_none(self):
|
|
shape = (2,)
|
|
a = self.array(shape, intent.optional, None)
|
|
assert_(a.arr.shape == shape)
|
|
assert_(a.arr_equal(a.arr, zeros(shape, dtype=self.type.dtype)))
|
|
|
|
shape = (2, 3)
|
|
a = self.array(shape, intent.optional, None)
|
|
assert_(a.arr.shape == shape)
|
|
assert_(a.arr_equal(a.arr, zeros(shape, dtype=self.type.dtype)))
|
|
assert_(a.arr.flags['FORTRAN'] and not a.arr.flags['CONTIGUOUS'])
|
|
|
|
shape = (2, 3)
|
|
a = self.array(shape, intent.c.optional, None)
|
|
assert_(a.arr.shape == shape)
|
|
assert_(a.arr_equal(a.arr, zeros(shape, dtype=self.type.dtype)))
|
|
assert_(not a.arr.flags['FORTRAN'] and a.arr.flags['CONTIGUOUS'])
|
|
|
|
def test_optional_from_2seq(self):
|
|
obj = self.num2seq
|
|
shape = (len(obj),)
|
|
a = self.array(shape, intent.optional, obj)
|
|
assert_(a.arr.shape == shape)
|
|
assert_(not a.has_shared_memory())
|
|
|
|
def test_optional_from_23seq(self):
|
|
obj = self.num23seq
|
|
shape = (len(obj), len(obj[0]))
|
|
a = self.array(shape, intent.optional, obj)
|
|
assert_(a.arr.shape == shape)
|
|
assert_(not a.has_shared_memory())
|
|
|
|
a = self.array(shape, intent.optional.c, obj)
|
|
assert_(a.arr.shape == shape)
|
|
assert_(not a.has_shared_memory())
|
|
|
|
def test_inplace(self):
|
|
obj = array(self.num23seq, dtype=self.type.dtype)
|
|
assert_(not obj.flags['FORTRAN'] and obj.flags['CONTIGUOUS'])
|
|
shape = obj.shape
|
|
a = self.array(shape, intent.inplace, obj)
|
|
assert_(obj[1][2] == a.arr[1][2], repr((obj, a.arr)))
|
|
a.arr[1][2] = 54
|
|
assert_(obj[1][2] == a.arr[1][2] ==
|
|
array(54, dtype=self.type.dtype), repr((obj, a.arr)))
|
|
assert_(a.arr is obj)
|
|
assert_(obj.flags['FORTRAN']) # obj attributes are changed inplace!
|
|
assert_(not obj.flags['CONTIGUOUS'])
|
|
|
|
def test_inplace_from_casttype(self):
|
|
for t in self.type.cast_types():
|
|
if t is self.type:
|
|
continue
|
|
obj = array(self.num23seq, dtype=t.dtype)
|
|
assert_(obj.dtype.type == t.dtype)
|
|
assert_(obj.dtype.type is not self.type.dtype)
|
|
assert_(not obj.flags['FORTRAN'] and obj.flags['CONTIGUOUS'])
|
|
shape = obj.shape
|
|
a = self.array(shape, intent.inplace, obj)
|
|
assert_(obj[1][2] == a.arr[1][2], repr((obj, a.arr)))
|
|
a.arr[1][2] = 54
|
|
assert_(obj[1][2] == a.arr[1][2] ==
|
|
array(54, dtype=self.type.dtype), repr((obj, a.arr)))
|
|
assert_(a.arr is obj)
|
|
assert_(obj.flags['FORTRAN']) # obj attributes changed inplace!
|
|
assert_(not obj.flags['CONTIGUOUS'])
|
|
assert_(obj.dtype.type is self.type.dtype) # obj changed inplace!
|