/
_helpers.py
73 lines (55 loc) · 2.07 KB
/
_helpers.py
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import unittest
import mock
try:
from opentelemetry import trace
from opentelemetry.sdk.trace import TracerProvider
from opentelemetry.sdk.trace.export import SimpleSpanProcessor
from opentelemetry.sdk.trace.export.in_memory_span_exporter import (
InMemorySpanExporter,
)
from opentelemetry.trace.status import StatusCode
trace.set_tracer_provider(TracerProvider())
HAS_OPENTELEMETRY_INSTALLED = True
except ImportError:
HAS_OPENTELEMETRY_INSTALLED = False
StatusCode = mock.Mock()
_TEST_OT_EXPORTER = None
_TEST_OT_PROVIDER_INITIALIZED = False
def get_test_ot_exporter():
global _TEST_OT_EXPORTER
if _TEST_OT_EXPORTER is None:
_TEST_OT_EXPORTER = InMemorySpanExporter()
return _TEST_OT_EXPORTER
def use_test_ot_exporter():
global _TEST_OT_PROVIDER_INITIALIZED
if _TEST_OT_PROVIDER_INITIALIZED:
return
provider = trace.get_tracer_provider()
if not hasattr(provider, "add_span_processor"):
return
provider.add_span_processor(SimpleSpanProcessor(get_test_ot_exporter()))
_TEST_OT_PROVIDER_INITIALIZED = True
class OpenTelemetryBase(unittest.TestCase):
@classmethod
def setUpClass(cls):
if HAS_OPENTELEMETRY_INSTALLED:
use_test_ot_exporter()
cls.ot_exporter = get_test_ot_exporter()
def tearDown(self):
if HAS_OPENTELEMETRY_INSTALLED:
self.ot_exporter.clear()
def assertNoSpans(self):
if HAS_OPENTELEMETRY_INSTALLED:
span_list = self.ot_exporter.get_finished_spans()
self.assertEqual(len(span_list), 0)
def assertSpanAttributes(
self, name, status=StatusCode.OK, attributes=None, span=None
):
if HAS_OPENTELEMETRY_INSTALLED:
if not span:
span_list = self.ot_exporter.get_finished_spans()
self.assertEqual(len(span_list), 1)
span = span_list[0]
self.assertEqual(span.name, name)
self.assertEqual(span.status.status_code, status)
self.assertEqual(dict(span.attributes), attributes)