def test_basic_properties(self):
ectx = nd.eval_context()
# The default settings of an evaluation context
self.assertEqual(ectx.errmode, 'fractional')
self.assertEqual(ectx.cuda_device_errmode, 'nocheck'),
self.assertEqual(ectx.date_parse_order, 'NoAmbig')
self.assertEqual(ectx.century_window, 70)
def test_assignment_arrfunc(self):
af = _lowlevel.make_arrfunc_from_assignment(
ndt.float32, ndt.int64, "nocheck")
self.assertEqual(nd.as_py(af.proto), ndt.type("(int64) -> float32"))
a = nd.array(1234, type=ndt.int64)
b = af(a)
self.assertEqual(nd.type_of(b), ndt.float32)
self.assertEqual(nd.as_py(b), 1234)
# Instantiate as a strided kernel
with _lowlevel.ckernel.CKernelBuilder() as ckb:
meta = (ctypes.c_void_p * 2)()
ectx = nd.eval_context()
_lowlevel.arrfunc_instantiate(af, ckb, 0, ndt.float32, 0,
[ndt.int64], [0], "strided",
ectx._ectx_ptr)
ck = ckb.ckernel(_lowlevel.ExprStridedOperation)
# Do an assignment using ctypes
i64 = (ctypes.c_int64 * 3)()
for i, v in enumerate([3,7,21]):
i64[i] = v
pi64 = ctypes.pointer(i64)
i64_stride = c_ssize_t(8)
f32 = (ctypes.c_float * 3)()
ck(ctypes.addressof(f32), 4,
ctypes.addressof(pi64), ctypes.pointer(i64_stride),
3)
self.assertEqual([f32[i] for i in range(3)], [3,7,21])
def test_eval_errmode(self):
a = nd.array(1.5).cast(ndt.int32)
# Default error mode raises
self.assertRaises(RuntimeError, a.eval)
# But with an evaluation context with a 'nocheck' default error mode...
self.assertEqual(nd.as_py(a.eval(ectx=nd.eval_context(errmode='nocheck'))),
1)
def test_basic_properties(self):
ectx = nd.eval_context()
# The default settings of an evaluation context
self.assertEqual(ectx.errmode, 'fractional')
self.assertEqual(ectx.cuda_device_errmode, 'nocheck'),
self.assertEqual(ectx.date_parse_order, 'NoAmbig')
self.assertEqual(ectx.century_window, 70)
def test_eval_errmode(self):
a = nd.array(1.5).cast(ndt.int32)
# Default error mode raises
self.assertRaises(RuntimeError, a.eval)
# But with an evaluation context with a 'nocheck' default error mode...
self.assertEqual(
nd.as_py(a.eval(ectx=nd.eval_context(errmode='nocheck'))), 1)
def test_json_date_parse(self):
a = nd.parse_json('var * date', '["2012-03-17", "1922-12-30"]')
self.assertEqual(nd.as_py(a), [date(2012, 3, 17), date(1922, 12, 30)])
self.assertRaises(ValueError, nd.parse_json, 'var * date',
'["2012-03-17T17:00:15-0600", "1922-12-30 Thursday"]')
a = nd.parse_json('var * date',
'["2012-06-17T17:00:15-0600", "1921-12-30 Thursday"]',
ectx=nd.eval_context(errmode='nocheck'))
self.assertEqual(nd.as_py(a), [date(2012, 6, 17), date(1921, 12, 30)])
def test_json_date_parse(self):
a = nd.parse_json('var * date', '["2012-03-17", "1922-12-30"]')
self.assertEqual(nd.as_py(a), [date(2012, 3, 17), date(1922, 12, 30)])
self.assertRaises(ValueError, nd.parse_json, 'var * date',
'["2012-03-17T17:00:15-0600", "1922-12-30 Thursday"]')
a = nd.parse_json('var * date',
'["2012-06-17T17:00:15-0600", "1921-12-30 Thursday"]',
ectx=nd.eval_context(errmode='nocheck'))
self.assertEqual(nd.as_py(a), [date(2012, 6, 17), date(1921, 12, 30)])
def test_date_parse(self):
# By default, don't allow ambiguous year interpretations
self.assertRaises(ValueError, nd.array('01/02/03').cast('date').eval)
self.assertEqual(nd.as_py(nd.array('01/02/03').cast('date').eval(
ectx=nd.eval_context(date_parse_order='YMD'))),
date(2001, 2, 3))
self.assertEqual(nd.as_py(nd.array('01/02/03').cast('date').eval(
ectx=nd.eval_context(date_parse_order='MDY'))),
date(2003, 1, 2))
self.assertEqual(nd.as_py(nd.array('01/02/03').cast('date').eval(
ectx=nd.eval_context(date_parse_order='DMY'))),
date(2003, 2, 1))
# Can also change the two year handling
# century_window of 0 means don't allow
self.assertRaises(ValueError, nd.array('01/02/03').cast('date').eval,
ectx=nd.eval_context(date_parse_order='YMD',
century_window=0))
# century_window of 10 means a sliding window starting 10 years ago
self.assertEqual(nd.as_py(nd.array('01/02/03').cast('date').eval(
ectx=nd.eval_context(date_parse_order='YMD',
century_window=10))),
date(2101, 2, 3))
# century_window of 1850 means a fixed window starting at 1850
self.assertEqual(nd.as_py(nd.array('01/02/03').cast('date').eval(
ectx=nd.eval_context(date_parse_order='YMD',
century_window=1850))),
date(1901, 2, 3))
def test_date_parse(self):
# By default, don't allow ambiguous year interpretations
self.assertRaises(ValueError, nd.array('01/02/03').cast('date').eval)
self.assertEqual(
nd.as_py(
nd.array('01/02/03').cast('date').eval(ectx=nd.eval_context(
date_parse_order='YMD'))), date(2001, 2, 3))
self.assertEqual(
nd.as_py(
nd.array('01/02/03').cast('date').eval(ectx=nd.eval_context(
date_parse_order='MDY'))), date(2003, 1, 2))
self.assertEqual(
nd.as_py(
nd.array('01/02/03').cast('date').eval(ectx=nd.eval_context(
date_parse_order='DMY'))), date(2003, 2, 1))
# Can also change the two year handling
# century_window of 0 means don't allow
self.assertRaises(ValueError,
nd.array('01/02/03').cast('date').eval,
ectx=nd.eval_context(date_parse_order='YMD',
century_window=0))
# century_window of 10 means a sliding window starting 10 years ago
self.assertEqual(
nd.as_py(
nd.array('01/02/03').cast('date').eval(ectx=nd.eval_context(
date_parse_order='YMD', century_window=10))),
date(2101, 2, 3))
# century_window of 1850 means a fixed window starting at 1850
self.assertEqual(
nd.as_py(
nd.array('01/02/03').cast('date').eval(ectx=nd.eval_context(
date_parse_order='YMD', century_window=1850))),
date(1901, 2, 3))
def test_modified_properties(self):
ectx = nd.eval_context(errmode='overflow',
cuda_device_errmode='fractional',
date_parse_order='YMD',
century_window=1929)
self.assertEqual(ectx.errmode, 'overflow')
self.assertEqual(ectx.cuda_device_errmode, 'fractional'),
self.assertEqual(ectx.date_parse_order, 'YMD')
self.assertEqual(ectx.century_window, 1929)
self.assertEqual(repr(ectx),
"nd.eval_context(errmode='overflow',\n" +
" cuda_device_errmode='fractional',\n" +
" date_parse_order='YMD',\n" +
" century_window=1929)")
def test_modified_properties(self):
ectx = nd.eval_context(errmode='overflow',
cuda_device_errmode='fractional',
date_parse_order='YMD',
century_window=1929)
self.assertEqual(ectx.errmode, 'overflow')
self.assertEqual(ectx.cuda_device_errmode, 'fractional'),
self.assertEqual(ectx.date_parse_order, 'YMD')
self.assertEqual(ectx.century_window, 1929)
self.assertEqual(
repr(ectx), "nd.eval_context(errmode='overflow',\n" +
" cuda_device_errmode='fractional',\n" +
" date_parse_order='YMD',\n" +
" century_window=1929)")