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# -*- coding: utf-8 -*-
from hyperframe.frame import (
Flags, Flag,
)
import pytest
class TestFlags:
def test_add(self):
flags = Flags([Flag("VALID_FLAG", 0x00)])
assert not flags
flags.add("VALID_FLAG")
flags.add("VALID_FLAG")
assert "VALID_FLAG" in flags
assert list(flags) == ["VALID_FLAG"]
assert len(flags) == 1
def test_remove(self):
flags = Flags([Flag("VALID_FLAG", 0x00)])
flags.add("VALID_FLAG")
flags.discard("VALID_FLAG")
assert "VALID_FLAG" not in flags
assert list(flags) == []
assert len(flags) == 0
# discarding elements not in the set should not throw an exception
flags.discard("END_STREAM")
def test_validation(self):
flags = Flags([Flag("VALID_FLAG", 0x00)])
flags.add("VALID_FLAG")
with pytest.raises(ValueError):
flags.add("INVALID_FLAG")
def test_repr(self):
flags = Flags([Flag("VALID_FLAG", 0x00), Flag("OTHER_FLAG", 0x01)])
assert repr(flags) == "[]"
flags.add("VALID_FLAG")
assert repr(flags) == "['VALID_FLAG']"
flags.add("OTHER_FLAG")
assert repr(flags) == "['OTHER_FLAG', 'VALID_FLAG']"