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import pytest
from pypy.module.cpyext.test.test_cpyext import AppTestCpythonExtensionBase
from pypy.conftest import option
class AppTestArrayModule(AppTestCpythonExtensionBase):
enable_leak_checking = True
def test_basic(self):
module = self.import_module(name='array')
import sys
arr = module.array('i', [1,2,3])
assert arr.typecode == 'i'
assert arr.itemsize == 4
assert arr[2] == 3
assert len(arr.buffer_info()) == 2
exc = raises(TypeError, module.array.append)
errstr = str(exc.value)
if sys.implementation.name == 'pypy':
assert errstr.startswith("descriptor 'append' of 'array' object"), errstr
else:
assert errstr.startswith("unbound method array.append"), errstr
arr.append(4)
assert arr.tolist() == [1, 2, 3, 4]
assert len(arr) == 4
def test_iter(self):
module = self.import_module(name='array')
arr = module.array('i', [1,2,3])
sum = 0
for i in arr:
sum += i
assert sum == 6
def test_index(self):
module = self.import_module(name='array')
arr = module.array('i', [1, 2, 3, 4])
assert arr[3] == 4
raises(IndexError, arr.__getitem__, 10)
del arr[2]
assert arr.tolist() == [1, 2, 4]
arr[2] = 99
assert arr.tolist() == [1, 2, 99]
def test_slice_get(self):
module = self.import_module(name='array')
arr = module.array('i', [1, 2, 3, 4])
assert arr[:].tolist() == [1, 2, 3, 4]
assert arr[1:].tolist() == [2, 3, 4]
assert arr[:2].tolist() == [1, 2]
assert arr[1:3].tolist() == [2, 3]
def test_slice_object(self):
module = self.import_module(name='array')
arr = module.array('i', [1, 2, 3, 4])
assert arr[slice(1, 3)].tolist() == [2,3]
arr[slice(1, 3)] = module.array('i', [21, 22, 23])
assert arr.tolist() == [1, 21, 22, 23, 4]
del arr[slice(1, 3)]
assert arr.tolist() == [1, 23, 4]
raises(TypeError, 'arr[slice(1, 3)] = "abc"')
def test_buffer(self):
import sys
module = self.import_module(name='array')
arr = module.array('i', [1, 2, 3, 4])
buf = memoryview(arr)
buf[1] = 2
if sys.byteorder == 'big':
expected = b'\0\0\0\x01\0\0\0\x02\0\0\0\x03\0\0\0\x04'
else:
expected = b'\x01\0\0\0\x02\0\0\0\x03\0\0\0\x04\0\0\0'
assert bytes(buf) == expected
# make sure memory_attach is called
buf2 = module.passthrough(buf)
assert str(buf2) == str(buf)
def test_releasebuffer(self):
module = self.import_module(name='array')
arr = module.array('i', [1,2,3,4])
assert module.get_releasebuffer_cnt() == 0
module.create_and_release_buffer(arr)
assert module.get_releasebuffer_cnt() == 1
def test_Py_buffer(self):
module = self.import_module(name='array')
arr = module.array('i', [1,2,3,4])
assert module.get_releasebuffer_cnt() == 0
m = memoryview(arr)
assert module.get_releasebuffer_cnt() == 0
del m
self.debug_collect()
assert module.get_releasebuffer_cnt() == 1
def test_0d_view(self):
module = self.import_module(name='array')
arr = module.array('B', b'\0\0\0\x01')
buf = memoryview(arr).cast('i', shape=())
assert bytes(buf) == b'\0\0\0\x01'
assert buf.shape == ()
assert buf.strides == ()
def test_binop_mul_impl(self):
# check that rmul is called
module = self.import_module(name='array')
arr = module.array('i', [2])
res = [1, 2, 3] * arr
assert res == [1, 2, 3, 1, 2, 3]
@pytest.mark.xfail
def test_subclass_dealloc(self):
module = self.import_module(name='array')
class Sub(module.array):
pass
arr = Sub('i', [2])
module.readbuffer_as_string(arr)
class A(object):
pass
assert not module.same_dealloc(arr, module.array('i', [2]))
assert module.same_dealloc(arr, A())
def test_string_buf(self):
module = self.import_module(name='array')
import sys
arr = module.array('u', '123')
view = memoryview(arr)
print("view.shape", view.shape)
print("view.strides", view.strides)
isize = view.itemsize
if sys.platform == 'win32':
assert isize == 2
else:
assert isize == 4
assert module.write_buffer_len(arr) == isize * 3
assert len(module.readbuffer_as_string(arr)) == isize * 3
assert len(module.readbuffer_as_string(view)) == isize * 3
def test_subclass(self):
import struct
module = self.import_module(name='array')
class Sub(module.array):
pass
arr = Sub('i', [2])
res = [1, 2, 3] * arr
assert res == [1, 2, 3, 1, 2, 3]
val = module.readbuffer_as_string(arr)
assert val == struct.pack('i', 2)
def test_unicode_readbuffer(self):
# Not really part of array, refactor
import struct
module = self.import_module(name='array')
val = module.readbuffer_as_string(b'abcd')
assert val == b'abcd'
def test_readinto(self):
module = self.import_module(name='array')
a = module.array('B')
a.fromstring(b'0123456789')
filename = self.udir + "/_test_file"
f = open(filename, 'w+b')
f.write(b'foobar')
f.seek(0)
n = f.readinto(a)
f.close()
assert n == 6
assert len(a) == 10
assert a.tostring() == b'foobar6789'
def test_iowrite(self):
module = self.import_module(name='array')
from io import BytesIO
a = module.array('B')
a.fromstring(b'0123456789')
fd = BytesIO()
# only test that it works
fd.write(a)
def test_getitem_via_PySequence_GetItem(self):
module = self.import_module(name='array')
a = module.array('i', range(10))
# call via tp_as_mapping.mp_subscript
assert 5 == a[-5]
# PySequence_ITEM used to call space.getitem() which
# prefers tp_as_mapping.mp_subscript over tp_as_sequence.sq_item
# Now fixed so this test raises (array_item does not add len(a),
# array_subscr does)
raises(IndexError, module.getitem, a, -5)
def test_subclass_with_attribute(self):
module = self.import_module(name='array')
class Sub(module.array):
def addattrib(self):
print('called addattrib')
self.attrib = True
import gc
module.subclass_with_attribute(Sub, "addattrib", "attrib", gc.collect)
assert Sub.__module__ == __name__
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