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# --------------------------------------------------------------------------
#
# Copyright (c) Microsoft Corporation. All rights reserved.
#
# The MIT License (MIT)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the ""Software""), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
#
# --------------------------------------------------------------------------
import time
import pytest
import signal
import os
import subprocess
import random
import platform
import urllib
from typing import Generator
from azure.core.settings import settings
from opentelemetry import trace
from opentelemetry.sdk.trace import TracerProvider
from opentelemetry.sdk.trace.export.in_memory_span_exporter import InMemorySpanExporter
from opentelemetry.sdk.trace.export import SimpleSpanProcessor
from rest_client import MockRestClient
from tracing_common import FakeSpan
def is_port_available(port_num):
req = urllib.request.Request("http://localhost:{}/health".format(port_num))
try:
return urllib.request.urlopen(req).code != 200
except Exception as e:
return True
def get_port():
count = 3
for _ in range(count):
port_num = random.randrange(3000, 5000)
if is_port_available(port_num):
return port_num
raise TypeError("Tried {} times, can't find an open port".format(count))
@pytest.fixture
def port():
return os.environ["FLASK_PORT"]
def start_testserver():
port = get_port()
os.environ["FLASK_APP"] = "coretestserver"
os.environ["FLASK_PORT"] = str(port)
if platform.python_implementation() == "PyPy":
# pypy is now getting mad at us for some of our encoding / text, so need
# to set these additional env vars for pypy
os.environ["LC_ALL"] = "C.UTF-8"
os.environ["LANG"] = "C.UTF-8"
cmd = "flask run -p {}".format(port)
if os.name == "nt": # On windows, subprocess creation works without being in the shell
child_process = subprocess.Popen(cmd, env=dict(os.environ))
else:
# On linux, have to set shell=True
child_process = subprocess.Popen(cmd, shell=True, preexec_fn=os.setsid, env=dict(os.environ))
count = 5
for _ in range(count):
if not is_port_available(port):
return child_process
time.sleep(1)
raise ValueError(f"Didn't start!")
def terminate_testserver(process):
if os.name == "nt":
process.kill()
else:
os.killpg(os.getpgid(process.pid), signal.SIGTERM) # Send the signal to all the process groups
@pytest.fixture(autouse=True, scope="package")
def testserver():
"""Start the Autorest testserver."""
server = start_testserver()
yield
terminate_testserver(server)
@pytest.fixture
def client(port):
return MockRestClient(port)
@pytest.fixture
def tracing_implementation():
FakeSpan.CONTEXT = []
settings.tracing_implementation.set_value(FakeSpan)
yield
settings.tracing_implementation.set_value(None)
class TracingTestHelper:
def __init__(self, tracer, exporter):
self.tracer = tracer
self.exporter = exporter
@pytest.fixture(scope="session", autouse=True)
def enable_otel_tracing():
provider = TracerProvider()
trace.set_tracer_provider(provider)
@pytest.fixture(scope="function")
def tracing_helper() -> Generator[TracingTestHelper, None, None]:
settings.tracing_enabled = True
settings.tracing_implementation = None
span_exporter = InMemorySpanExporter()
processor = SimpleSpanProcessor(span_exporter)
trace.get_tracer_provider().add_span_processor(processor)
yield TracingTestHelper(trace.get_tracer(__name__), span_exporter)
settings.tracing_enabled = None
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