def test_method_from_string(self):
state = Tracestate()
state.from_string('foo=1')
state.from_string('bar=2')
state.from_string('baz=3')
self.assertEqual(state.to_string(), 'foo=1,bar=2,baz=3')
# test load order
state = Tracestate()
state.from_string('baz=3')
state.from_string('bar=2')
state.from_string('foo=1')
self.assertNotEqual(state.to_string(), 'foo=1,bar=2,baz=3')
def get_tracestate(self, headers):
tracestate = Tracestate()
for key, value in headers:
if self.tracestate_name_re.match(key):
tracestate.from_string(value)
return tracestate