def testCorrectOffsetIsSetMiddleFieldSingleLevel(self):
uut = self.get_default_field()
first_field = String('Reykjavik', name='first_field')
con = Container(name='container', fields=[first_field, uut])
con.render()
self.assertEqual(uut.get_offset(), len(first_field.render()))
while con.mutate():
con.render()
self.assertEqual(uut.get_offset(), len(first_field.render()))
def testAbsoluteOffsetOfPreFieldNotAtTheBeginning(self):
uut = self.get_default_field()
pre_field = String(name='first', value='first')
container = Container(name='container', fields=[pre_field, self.to, uut])
while container.mutate():
container.render()
uut_rendered = uut.render()
uut_val = unpack('>I', uut_rendered.tobytes())[0]
self.assertEqual(len(pre_field.render()), uut_val)
def testCorrectionInt(self):
self.correction = 5
uut = self.get_default_field()
pre_field = String(name='first', value='first')
container = Container(name='container', fields=[pre_field, self.to, uut])
while container.mutate():
container.render()
uut_rendered = uut.render()
uut_val = unpack('>I', uut_rendered.tobytes())[0]
self.assertEqual(len(pre_field.render()) + 5, uut_val)
