def test_context_priority(self):
# a context is sampled if the spans are sampled
ctx = Context()
for priority in [
USER_REJECT, AUTO_REJECT, AUTO_KEEP, USER_KEEP, None, 999
]:
ctx.sampling_priority = priority
span = Span(tracer=None, name=('fake_span_%s' % repr(priority)))
ctx.add_span(span)
span.finish()
# It's "normal" to have sampled be true even when priority sampling is
# set to 0 or -1. It would stay false even even with priority set to 2.
# The only criteria to send (or not) the spans to the agent should be
# this "sampled" attribute, as it's tightly related to the trace weight.
assert priority == ctx.sampling_priority
trace, sampled = ctx.get()
assert sampled is True, 'priority has no impact on sampled status'
def test_clone(self):
ctx = Context()
ctx.sampling_priority = 2
# manually create a root-child trace
root = Span(tracer=None, name='root')
child = Span(tracer=None,
name='child_1',
trace_id=root.trace_id,
parent_id=root.span_id)
child._parent = root
ctx.add_span(root)
ctx.add_span(child)
cloned_ctx = ctx.clone()
assert cloned_ctx._parent_trace_id == ctx._parent_trace_id
assert cloned_ctx._parent_span_id == ctx._parent_span_id
assert cloned_ctx._sampling_priority == ctx._sampling_priority
assert cloned_ctx._otel_origin == ctx._otel_origin
assert cloned_ctx._current_span == ctx._current_span
assert cloned_ctx._trace == []
def test_set_tag_manual_drop(self):
ctx = Context()
s = Span(tracer=None, name='root.span', service='s', resource='r', context=ctx)
assert s.context == ctx
assert ctx.sampling_priority != priority.USER_REJECT
assert s.context.sampling_priority != priority.USER_REJECT
assert s.meta == dict()
s.set_tag('manual.drop')
assert ctx.sampling_priority == priority.USER_REJECT
assert s.context.sampling_priority == priority.USER_REJECT
assert s.meta == dict()
ctx.sampling_priority = priority.AUTO_REJECT
assert ctx.sampling_priority == priority.AUTO_REJECT
assert s.context.sampling_priority == priority.AUTO_REJECT
assert s.meta == dict()
s.set_tag('manual.drop')
assert ctx.sampling_priority == priority.USER_REJECT
assert s.context.sampling_priority == priority.USER_REJECT
assert s.meta == dict()