def create_int_carray_obj(self, bits, init_val):
cint_type = cdm.CIntType('i' + str(bits), bits, False, cdm.ENDIANESS)
content = b''.join(map(cint_type.convert_to_c_repr, init_val))
addrspace = VirtualAddressSpace(content)
carray_type = cdm.CArrayType(cint_type.bind(addrspace), len(init_val),
addrspace)
return cdm.CArray(carray_type, 0)
def test_convertFromCRepr_returnsArrayOfCorrectSize(self):
carray_type = cdm.CArrayType(cdm.CIntType('i', 32, False, 'big'), 5)
py_repr = carray_type.convert_from_c_repr(
b'\x00\x00\x00\x11\x00\x00\x00\x22\x33\x44\x55\x66')
assert py_repr == [0x11, 0x22, 0x33445566, 0, 0]
def test_convertToCRepr_onUtf8WithBigCodepoint_returnsArrayOfCorrectSize(
self):
carray_type = cdm.CArrayType(cdm.CIntType('i', 32, False, 'big'), 4)
c_repr = carray_type.convert_to_c_repr('A\u1122')
assert c_repr == b'\x00\x00\x00\x41\x00\x00\x11\x22' \
b'\x00\x00\x00\x00\x00\x00\x00\x00'
def test_convertToCRepr_onPyIterable_initializesElementsWithIterablePlusNullVals(
self):
carray_type = cdm.CArrayType(cdm.CIntType('i', 32, False, 'big'), 5)
c_repr = carray_type.convert_to_c_repr([0x11, 0x22, 0x33445566])
assert c_repr == b'\x00\x00\x00\x11\x00\x00\x00\x22\x33\x44\x55\x66' \
b'\x00\x00\x00\x00\x00\x00\x00\x00'
def carray_type(cint_type, addrspace):
return cdm.CArrayType(cint_type, 10, addrspace)
def test_repr_returnsBaseNamePlusArray(self, unbound_cint_type):
cptr_type = cdm.CArrayType(unbound_cint_type, 123).with_attr('attr')
assert repr(cptr_type) == 'ts.cint_attr_array123'
def test_eq_onSamePointer_returnsTrue(self, diff_carr_type):
basetype = cdm.CIntType('x', 32, True, cdm.ENDIANESS)
assert cdm.CArrayType(basetype, 10) != diff_carr_type
def test_bind_bindsAlsoBaseElement(self, addrspace):
ctype = cdm.CProxyType(1)
carray_type = cdm.CArrayType(ctype, 10)
bound_carray_type = carray_type.bind(addrspace)
assert bound_carray_type.base_type.__addrspace__ is addrspace
def test_repr_returnsClassNameAndContent(self, cint_type, addrspace):
carray_type = cdm.CArrayType(cint_type, 3, addrspace)
carray_obj = carray_type([1, 2, 3])
assert repr(carray_obj) == 'ts.cint_array3([1, 2, 3])'
def test_init_onBaseTypeWithDifferentAddrSpaceSet_raisesInvalidAddressSpace(
self, cint_type):
other_addrspace = VirtualAddressSpace()
with pytest.raises(cdm.InvalidAddressSpaceError):
_ = cdm.CArrayType(cint_type, 10, other_addrspace)
def test_init_returnsArrayCProxy(self, unbound_cint_type):
carray_type = cdm.CArrayType(unbound_cint_type, 10)
assert carray_type.__addrspace__ is None
assert carray_type.base_type is unbound_cint_type
assert carray_type.element_count == 10
class TestCArrayType:
def test_init_returnsArrayCProxy(self, unbound_cint_type):
carray_type = cdm.CArrayType(unbound_cint_type, 10)
assert carray_type.__addrspace__ is None
assert carray_type.base_type is unbound_cint_type
assert carray_type.element_count == 10
def test_init_onBaseTypeWithDifferentAddrSpaceSet_raisesInvalidAddressSpace(
self, cint_type):
other_addrspace = VirtualAddressSpace()
with pytest.raises(cdm.InvalidAddressSpaceError):
_ = cdm.CArrayType(cint_type, 10, other_addrspace)
def test_bind_bindsAlsoBaseElement(self, addrspace):
ctype = cdm.CProxyType(1)
carray_type = cdm.CArrayType(ctype, 10)
bound_carray_type = carray_type.bind(addrspace)
assert bound_carray_type.base_type.__addrspace__ is addrspace
def test_shallowIterSubTypes_returnsBaseType(self, carray_type):
assert list(carray_type.shallow_iter_subtypes()) \
== [carray_type.base_type]
def test_eq_onSamePointer_returnsTrue(self, cint_type):
assert cdm.CPointerType(cint_type, 32, 'little') \
== cdm.CPointerType(cint_type, 32, 'little')
@pytest.mark.parametrize('diff_carr_type', [
"othertype",
cdm.CArrayType(cdm.CIntType('x', 32, True, cdm.ENDIANESS),
10).with_attr('attr'),
cdm.CArrayType(cdm.CIntType('x', 32, True, cdm.ENDIANESS), 1000),
cdm.CArrayType(cdm.CIntType('y', 16, False, cdm.ENDIANESS), 10)
])
def test_eq_onSamePointer_returnsTrue(self, diff_carr_type):
basetype = cdm.CIntType('x', 32, True, cdm.ENDIANESS)
assert cdm.CArrayType(basetype, 10) != diff_carr_type
def test_len_returnsSizeOfObject(self, carray_type):
assert len(carray_type) == carray_type.element_count
def test_sizeof_returnsSizeInBytes(self, carray_type):
assert carray_type.sizeof \
== carray_type.element_count * carray_type.base_type.sizeof
@patch.object(cdm.CIntType, 'null_val')
def test_nullValue_ok(self, null_val, carray_type):
assert carray_type.null_val == [null_val] * carray_type.element_count
def test_cDefinition_onRefDef_returnsWithRefDef(self, cint_type):
assert cint_type.array(12).c_definition('x') == 'cint x[12]'
def test_cDefinition_onNoRefDef_returnsWithoutRefDef(self, cint_type):
assert cint_type.array(12).c_definition() == 'cint [12]'
def test_cDefinition_onArrayOfArrays_ok(self, cint_type):
assert cint_type.array(11).array(22).c_definition() == 'cint [22][11]'
def test_cDefinition_onArrayOfPtr_ok(self, cint_type):
assert cint_type.ptr.array(10).c_definition('x') == 'cint *x[10]'
def test_cDefinition_onPtrToArray_ok(self, cint_type):
assert cint_type.array(10).ptr.c_definition('x') == 'cint (*x)[10]'
def test_repr_returnsBaseNamePlusArray(self, unbound_cint_type):
cptr_type = cdm.CArrayType(unbound_cint_type, 123).with_attr('attr')
assert repr(cptr_type) == 'ts.cint_attr_array123'
def test_convertToCRepr_onPyIterable_initializesElementsWithIterablePlusNullVals(
self):
carray_type = cdm.CArrayType(cdm.CIntType('i', 32, False, 'big'), 5)
c_repr = carray_type.convert_to_c_repr([0x11, 0x22, 0x33445566])
assert c_repr == b'\x00\x00\x00\x11\x00\x00\x00\x22\x33\x44\x55\x66' \
b'\x00\x00\x00\x00\x00\x00\x00\x00'
def test_convertToCRepr_onUtf8WithBigCodepoint_returnsArrayOfCorrectSize(
self):
carray_type = cdm.CArrayType(cdm.CIntType('i', 32, False, 'big'), 4)
c_repr = carray_type.convert_to_c_repr('A\u1122')
assert c_repr == b'\x00\x00\x00\x41\x00\x00\x11\x22' \
b'\x00\x00\x00\x00\x00\x00\x00\x00'
def test_convertFromCRepr_returnsArrayOfCorrectSize(self):
carray_type = cdm.CArrayType(cdm.CIntType('i', 32, False, 'big'), 5)
py_repr = carray_type.convert_from_c_repr(
b'\x00\x00\x00\x11\x00\x00\x00\x22\x33\x44\x55\x66')
assert py_repr == [0x11, 0x22, 0x33445566, 0, 0]
def test_init_onConstArray_ok(self, cint_type):
carray_type = cint_type.with_attr('const').array(1)
_ = carray_type()
@pytest.mark.parametrize('size', [1, 4])
def test_getAlignment_returnsAlignmentOfBase(self, size,
unbound_cint_type):
with patch.object(cdm.CIntType, 'alignment', size):
carray_type = cdm.CArrayType(unbound_cint_type, 4)
assert carray_type.alignment == size
def test_getAlignment_returnsAlignmentOfBase(self, size,
unbound_cint_type):
with patch.object(cdm.CIntType, 'alignment', size):
carray_type = cdm.CArrayType(unbound_cint_type, 4)
assert carray_type.alignment == size
