def test_patch_unpatch(self):
tracer = DummyTracer()
# Test patch idempotence
patch()
patch()
r = redis.Redis(port=REDIS_CONFIG["port"])
Pin.get_from(r).clone(tracer=tracer).onto(r)
r.get("key")
spans = tracer.pop()
assert spans, spans
assert len(spans) == 1
# Test unpatch
unpatch()
r = redis.Redis(port=REDIS_CONFIG["port"])
r.get("key")
spans = tracer.pop()
assert not spans, spans
# Test patch again
patch()
r = redis.Redis(port=REDIS_CONFIG["port"])
Pin.get_from(r).clone(tracer=tracer).onto(r)
r.get("key")
spans = tracer.pop()
assert spans, spans
assert len(spans) == 1
def setUp(self):
self.tracer = DummyTracer()
self.traced_app = TraceMiddleware(
cherrypy,
self.tracer,
service="test.cherrypy.service",
distributed_tracing=True,
)
def tracer():
tracer = DummyTracer()
if sys.version_info < (3, 7):
# enable legacy asyncio support
from ddtrace.contrib.asyncio.provider import AsyncioContextProvider
tracer.configure(context_provider=AsyncioContextProvider())
yield tracer
def test_redis_legacy():
# ensure the old interface isn't broken, but doesn't trace
tracer = DummyTracer()
TracedRedisCache = get_traced_redis(tracer, "foo")
r = TracedRedisCache(port=REDIS_CONFIG["port"])
r.set("a", "b")
got = r.get("a")
assert compat.to_unicode(got) == "b"
assert not tracer.pop()
def make_ot_tracer(service_name="my_svc", config=None, scope_manager=None, context_provider=None):
config = config or {}
tracer = Tracer(service_name=service_name, config=config, scope_manager=scope_manager)
# similar to how we test the ddtracer, use a dummy tracer
dd_tracer = DummyTracer()
if context_provider:
dd_tracer.configure(context_provider=context_provider)
# attach the dummy tracer to the opentracer
tracer._dd_tracer = dd_tracer
return tracer
def tracer():
original_tracer = ddtrace.tracer
tracer = DummyTracer()
if sys.version_info < (3, 7):
# enable legacy asyncio support
from ddtrace.contrib.asyncio.provider import AsyncioContextProvider
tracer.configure(context_provider=AsyncioContextProvider())
setattr(ddtrace, "tracer", tracer)
patch()
yield tracer
setattr(ddtrace, "tracer", original_tracer)
unpatch()
def nop_tracer():
from ddtrace.opentracer import Tracer
tracer = Tracer(service_name="mysvc", config={})
# use the same test tracer used by the primary tests
tracer._tracer = DummyTracer()
return tracer
def test_log_unfinished_spans_disabled(self, log):
# the trace finished status logging is disabled
tracer = DummyTracer()
ctx = Context()
# manually create a root-child trace
root = Span(tracer=tracer, name="root")
child_1 = Span(tracer=tracer,
name="child_1",
trace_id=root.trace_id,
parent_id=root.span_id)
child_2 = Span(tracer=tracer,
name="child_2",
trace_id=root.trace_id,
parent_id=root.span_id)
child_1._parent = root
child_2._parent = root
ctx.add_span(root)
ctx.add_span(child_1)
ctx.add_span(child_2)
# close only the parent
root.finish()
# the logger has never been invoked to print unfinished spans
for call, _ in log.call_args_list:
msg = call[0]
assert "the trace has %d unfinished spans" not in msg
def test_inject(self):
tracer = DummyTracer()
ctx = Context(trace_id=1234,
sampling_priority=2,
dd_origin="synthetics")
tracer.context_provider.activate(ctx)
with tracer.trace("global_root_span") as span:
headers = {}
HTTPPropagator.inject(span.context, headers)
assert int(headers[HTTP_HEADER_TRACE_ID]) == span.trace_id
assert int(headers[HTTP_HEADER_PARENT_ID]) == span.span_id
assert int(headers[HTTP_HEADER_SAMPLING_PRIORITY]
) == span.context.sampling_priority
assert headers[HTTP_HEADER_ORIGIN] == span.context.dd_origin
def test_pre_v4():
tracer = DummyTracer()
MySQL = get_traced_pymysql_connection(tracer, service="my-mysql-server")
conn = MySQL(**config.MYSQL_CONFIG)
cursor = conn.cursor()
cursor.execute("SELECT 1")
assert cursor.fetchone()[0] == 1
def test_extract(self):
tracer = DummyTracer()
headers = {
"x-datadog-trace-id": "1234",
"x-datadog-parent-id": "5678",
"x-datadog-sampling-priority": "1",
"x-datadog-origin": "synthetics",
}
context = HTTPPropagator.extract(headers)
tracer.context_provider.activate(context)
with tracer.trace("local_root_span") as span:
assert span.trace_id == 1234
assert span.parent_id == 5678
assert span.context.sampling_priority == 1
assert span.context.dd_origin == "synthetics"
def tracer_with_debug_logging():
# All the tracers, dummy or not, shares the same logging object.
tracer = DummyTracer()
level = tracer.log.level
tracer.log.setLevel(logging.DEBUG)
try:
yield tracer
finally:
tracer.log.setLevel(level)
def test_WSGI_extract(self):
"""Ensure we support the WSGI formatted headers as well."""
tracer = DummyTracer()
headers = {
"HTTP_X_DATADOG_TRACE_ID": "1234",
"HTTP_X_DATADOG_PARENT_ID": "5678",
"HTTP_X_DATADOG_SAMPLING_PRIORITY": "1",
"HTTP_X_DATADOG_ORIGIN": "synthetics",
}
context = HTTPPropagator.extract(headers)
tracer.context_provider.activate(context)
with tracer.trace("local_root_span") as span:
assert span.trace_id == 1234
assert span.parent_id == 5678
assert span.context.sampling_priority == 1
assert span.context.dd_origin == "synthetics"
def test_log_unfinished_spans_when_ok(self, log):
# if the unfinished spans logging is enabled but the trace is finished, don't log anything
tracer = DummyTracer()
ctx = Context()
# manually create a root-child trace
root = Span(tracer=tracer, name="root")
child = Span(tracer=tracer,
name="child_1",
trace_id=root.trace_id,
parent_id=root.span_id)
child._parent = root
ctx.add_span(root)
ctx.add_span(child)
# close the trace
child.finish()
root.finish()
# the logger has never been invoked to print unfinished spans
for call, _ in log.call_args_list:
msg = call[0]
assert "the trace has %d unfinished spans" not in msg
def get_dummy_tracer():
return DummyTracer()
def tracer():
return DummyTracer()
def tracer():
tracer = DummyTracer()
return tracer
class TestCherrypy(helper.CPWebCase):
"""
FIXME: the tests using getPage() are not synchronous and so require a
delay afterwards.
"""
@staticmethod
def setup_server():
cherrypy.tree.mount(
TestApp(),
"/",
{
"/": {
"tools.tracer.on": True
},
},
)
def setUp(self):
self.tracer = DummyTracer()
self.traced_app = TraceMiddleware(
cherrypy,
self.tracer,
service="test.cherrypy.service",
distributed_tracing=True,
)
def test_double_instrumentation(self):
# ensure CherryPy is never instrumented twice when `ddtrace-run`
# and `TraceMiddleware` are used together. `traced_app` MUST
# be assigned otherwise it's not possible to reproduce the
# problem (the test scope must keep a strong reference)
traced_app = TraceMiddleware(cherrypy, self.tracer) # noqa: F841
self.getPage("/")
time.sleep(0.1)
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertStatus("200 OK")
spans = self.tracer.writer.pop()
assert len(spans) == 1
def test_double_instrumentation_config(self):
# ensure CherryPy uses the last set configuration to be sure
# there are no breaking changes for who uses `ddtrace-run`
# with the `TraceMiddleware`
assert cherrypy.tools.tracer.service == "test.cherrypy.service"
TraceMiddleware(
cherrypy,
self.tracer,
service="new-intake",
)
self.getPage("/")
time.sleep(0.1)
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertStatus("200 OK")
spans = self.tracer.writer.pop()
assert len(spans) == 1
assert cherrypy.tools.tracer.service == "new-intake"
def test_child(self):
self.getPage("/child")
time.sleep(0.1)
self.assertStatus("200 OK")
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertBody("child")
# ensure trace worked
spans = self.tracer.writer.pop()
assert len(spans) == 2
spans_by_name = {s.name: s for s in spans}
s = spans_by_name["cherrypy.request"]
assert s.span_id
assert s.trace_id
assert not s.parent_id
assert s.service == "test.cherrypy.service"
assert s.resource == "GET /child"
assert s.error == 0
c = spans_by_name["child"]
assert c.span_id
assert c.trace_id == s.trace_id
assert c.parent_id == s.span_id
assert c.service == "test.cherrypy.service"
assert c.resource == "child"
assert c.error == 0
def test_success(self):
self.getPage("/")
time.sleep(0.1)
self.assertStatus("200 OK")
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertBody("Hello world!")
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
assert s.service == "test.cherrypy.service"
assert s.resource == "GET /"
assert s.error == 0
assert_span_http_status_code(s, 200)
assert s.meta.get(http.METHOD) == "GET"
def test_alias(self):
self.getPage("/aliases")
time.sleep(0.1)
self.assertStatus("200 OK")
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertBody("alias")
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
assert s.service == "test.cherrypy.service"
assert s.resource == "GET /aliases"
assert s.error == 0
assert_span_http_status_code(s, 200)
assert s.meta.get(http.METHOD) == "GET"
def test_handleme(self):
self.getPage("/handleme")
time.sleep(0.1)
self.assertErrorPage(418, message="handled")
# ensure trace worked
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
assert s.service == "test.cherrypy.service"
assert s.resource == "GET /handleme"
assert s.error == 0
assert_span_http_status_code(s, 418)
assert s.meta.get(http.METHOD) == "GET"
def test_error(self):
self.getPage("/error")
time.sleep(0.1)
self.assertErrorPage(500)
# ensure the request was traced.
assert not self.tracer.current_span()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
assert s.service == "test.cherrypy.service"
assert s.resource == "GET /error"
assert_span_http_status_code(s, 500)
assert s.error == 1
assert s.meta.get(http.METHOD) == "GET"
def test_fatal(self):
self.getPage("/fatal")
time.sleep(0.1)
self.assertErrorPage(500)
assert not self.tracer.current_span()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
assert s.service == "test.cherrypy.service"
assert s.resource == "GET /fatal"
assert_span_http_status_code(s, 500)
assert s.error == 1
assert s.meta.get(http.METHOD) == "GET"
assert "ZeroDivisionError" in s.meta.get(errors.ERROR_TYPE), s.meta
assert "by zero" in s.meta.get(errors.ERROR_MSG)
assert re.search(
'File ".*/contrib/cherrypy/web.py", line [0-9]+, in fatal',
s.meta.get(errors.ERROR_STACK))
def test_unicode(self):
# Encoded utf8 query strings MUST be parsed correctly.
# Here, the URL is encoded in utf8 and then %HEX
# See https://docs.cherrypy.org/en/latest/_modules/cherrypy/test/test_encoding.html for more
self.getPage(url_quote(u"/üŋïĉóđē".encode("utf-8")))
time.sleep(0.1)
self.assertStatus("200 OK")
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertBody(
b"\xc3\xbc\xc5\x8b\xc3\xaf\xc4\x89\xc3\xb3\xc4\x91\xc4\x93")
# ensure trace worked
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
assert s.service == "test.cherrypy.service"
assert s.resource == u"GET /üŋïĉóđē"
assert s.error == 0
assert_span_http_status_code(s, 200)
assert s.meta.get(http.METHOD) == "GET"
assert s.meta.get(http.URL) == u"http://127.0.0.1:54583/üŋïĉóđē"
def test_404(self):
self.getPage(u"/404/test")
time.sleep(0.1)
self.assertStatus("404 Not Found")
# ensure trace worked
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
assert s.service == "test.cherrypy.service"
assert s.resource == u"GET /404/test"
assert s.error == 0
assert_span_http_status_code(s, 404)
assert s.meta.get(http.METHOD) == "GET"
assert s.meta.get(http.URL) == u"http://127.0.0.1:54583/404/test"
def test_propagation(self):
self.getPage(
"/",
headers=[
("x-datadog-trace-id", "1234"),
("x-datadog-parent-id", "4567"),
("x-datadog-sampling-priority", "2"),
],
)
time.sleep(0.1)
self.assertStatus("200 OK")
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertBody("Hello world!")
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
# ensure the propagation worked well
assert s.trace_id == 1234
assert s.parent_id == 4567
assert s.get_metric(SAMPLING_PRIORITY_KEY) == 2
def test_disabled_distributed_tracing_config(self):
previous_distributed_tracing = config.cherrypy["distributed_tracing"]
config.cherrypy["distributed_tracing"] = False
self.getPage(
"/",
headers=[
("x-datadog-trace-id", "1234"),
("x-datadog-parent-id", "4567"),
("x-datadog-sampling-priority", "2"),
],
)
time.sleep(0.1)
self.assertStatus("200 OK")
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertBody("Hello world!")
# ensure trace worked
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
# ensure the propagation worked well
assert s.trace_id != 1234
assert s.parent_id != 4567
assert s.get_metric(SAMPLING_PRIORITY_KEY) != 2
config.cherrypy["distributed_tracing"] = previous_distributed_tracing
def test_disabled_distributed_tracing_middleware(self):
previous_distributed_tracing = cherrypy.tools.tracer.use_distributed_tracing
cherrypy.tools.tracer.use_distributed_tracing = False
self.getPage(
"/",
headers=[
("x-datadog-trace-id", "1234"),
("x-datadog-parent-id", "4567"),
("x-datadog-sampling-priority", "2"),
],
)
time.sleep(0.1)
self.assertStatus("200 OK")
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertBody("Hello world!")
# ensure trace worked
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
# ensure the propagation worked well
assert s.trace_id != 1234
assert s.parent_id != 4567
assert s.get_metric(SAMPLING_PRIORITY_KEY) != 2
cherrypy.tools.tracer.use_distributed_tracing = previous_distributed_tracing
def test_custom_span(self):
self.getPage(u"/custom_span")
time.sleep(0.1)
self.assertStatus("200 OK")
self.assertBody("hiya")
# ensure trace worked
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
assert s.service == "test.cherrypy.service"
assert s.resource == "overridden"
assert s.error == 0
assert_span_http_status_code(s, 200)
assert s.meta.get(http.METHOD) == "GET"
def test_http_request_header_tracing(self):
config.cherrypy.http.trace_headers(["Host", "my-header"])
self.getPage(
"/",
headers=[
("my-header", "my_value"),
("x-datadog-parent-id", "4567"),
("x-datadog-sampling-priority", "2"),
],
)
time.sleep(0.1)
traces = self.tracer.writer.pop_traces()
assert len(traces) == 1
assert len(traces[0]) == 1
span = traces[0][0]
assert span.get_tag("http.request.headers.my-header") == "my_value"
assert span.get_tag("http.request.headers.host") == "127.0.0.1:54583"
def test_http_response_header_tracing(self):
config.cherrypy.http.trace_headers(["my-response-header"])
self.getPage("/response_headers")
time.sleep(0.1)
traces = self.tracer.writer.pop_traces()
assert len(traces) == 1
assert len(traces[0]) == 1
span = traces[0][0]
assert span.get_tag(
"http.response.headers.my-response-header") == "my_response_value"
def test_variable_resource(self):
self.getPage("/dispatch/abc123/")
time.sleep(0.1)
self.assertStatus("200 OK")
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertBody("dispatch with abc123")
# ensure trace worked
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
assert s.service == "test.cherrypy.service"
# Once CherryPy returns sensible results for virtual path components, this
# can be: "GET /dispatch/{{test_value}}/"
assert s.resource == "GET /dispatch/abc123/"
assert s.error == 0
assert_span_http_status_code(s, 200)
assert s.meta.get(http.METHOD) == "GET"
def test_post(self):
self.getPage("/", method="POST")
time.sleep(0.1)
self.assertStatus("200 OK")
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertBody("Hello world!")
# ensure trace worked
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
assert s.service == "test.cherrypy.service"
assert s.resource == "POST /"
assert s.error == 0
assert_span_http_status_code(s, 200)
assert s.meta.get(http.METHOD) == "POST"
def test_service_configuration_config(self):
previous_service = config.cherrypy.get("service",
"test.cherrypy.service")
config.cherrypy["service"] = "my_cherrypy_service"
self.getPage("/")
time.sleep(0.1)
self.assertStatus("200 OK")
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertBody("Hello world!")
# ensure trace worked
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
assert s.service == "my_cherrypy_service"
assert s.resource == "GET /"
assert s.error == 0
assert_span_http_status_code(s, 200)
assert s.meta.get(http.METHOD) == "GET"
config.cherrypy["service"] = previous_service
def test_service_configuration_middleware(self):
previous_service = cherrypy.tools.tracer.service
cherrypy.tools.tracer.service = "my_cherrypy_service2"
self.getPage("/")
time.sleep(0.1)
self.assertStatus("200 OK")
self.assertHeader("Content-Type", "text/html;charset=utf-8")
self.assertBody("Hello world!")
# ensure trace worked
assert not self.tracer.current_span(), self.tracer.current_span(
).pprint()
spans = self.tracer.writer.pop()
assert len(spans) == 1
s = spans[0]
assert s.service == "my_cherrypy_service2"
assert s.resource == "GET /"
assert s.error == 0
assert_span_http_status_code(s, 200)
assert s.meta.get(http.METHOD) == "GET"
cherrypy.tools.tracer.service = previous_service
