def test_current_root_span(self):
# it should return the current active root span
ctx = Context()
span = Span(tracer=None, name='fake_span')
ctx.add_span(span)
assert span == ctx.get_current_root_span()
def test_current_root_span_none(self):
# it should return none when there is no root span
ctx = Context()
assert ctx.get_current_root_span() is None