def test_unpack_from(self):
'''
TODO: just a sanity test for now. Needs far more testing.
'''
import array
_struct.unpack_from("", array.array("c"))
self.assertEqual(_struct.unpack_from("", array.array("c")), ())
def test_unpack_from():
'''
TODO: just a sanity test for now. Needs far more testing.
'''
import array
_struct.unpack_from("", array.array("c"))
AreEqual(_struct.unpack_from("", array.array("c")),
())
def get_ref_block_params(self):
props = self.get_dynamic_global_properties()
ref_block_num = props['head_block_number'] - 1 & 0xFFFF
ref_block = self.get_block(props['head_block_number'])
ref_block_prefix = _struct.unpack_from(
"<I", unhexlify(ref_block["previous"]), 4)[0]
return ref_block_num, ref_block_prefix
def getUInt8A(data, offset, size):
end = int(offset + size)
assert end <= len(
data), "Trying to read UInt8 array beyond data end (%d, %X > %X)" % (
size, end, len(data))
val = unpack_from('<' + 'B' * int(size), data, offset)
val = list(val)
return val, end
def getSInt32A(data, offset, size):
val = unpack_from('<' + 'l' * int(size), data, offset)
val = list(val)
return val, int(offset + 4 * size)
def getUInt16A(data, offset, size):
val = unpack_from('<' + 'H' * int(size), data, offset)
val = list(val)
return val, int(offset + 2 * size)
def getFloat64A(data, offset, size):
val = unpack_from('<' + 'd' * int(size), data, offset)
val = list(val)
return val, int(offset + 8 * size)
def getFloat32A(data, offset, size):
singles = unpack_from('<' + 'f' * int(size), data, offset)
val = [float(s) for s in singles]
return val, int(offset + 4 * size)
