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# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright (C) 2019 EfficiOS Inc.
#
import uuid
import unittest
import utils
from bt2 import trace as bt2_trace
from bt2 import utils as bt2_utils
from bt2 import value as bt2_value
from bt2 import stream as bt2_stream
from bt2 import trace_class as bt2_trace_class
from utils import get_default_trace_class, get_const_stream_beginning_message
class TraceTestCase(unittest.TestCase):
def setUp(self):
self._tc = get_default_trace_class()
def test_create_default(self):
trace = self._tc()
self.assertIsNone(trace.name)
self.assertIsNone(trace.uuid)
self.assertEqual(len(trace.environment), 0)
self.assertEqual(len(trace.user_attributes), 0)
def test_create_invalid_name(self):
with self.assertRaises(TypeError):
self._tc(name=17)
def test_create_user_attributes(self):
trace = self._tc(user_attributes={"salut": 23})
self.assertEqual(trace.user_attributes, {"salut": 23})
self.assertIs(type(trace.user_attributes), bt2_value.MapValue)
def test_const_user_attributes(self):
trace = get_const_stream_beginning_message().stream.trace
self.assertEqual(trace.user_attributes, {"a-trace-attribute": 1})
self.assertIs(type(trace.user_attributes), bt2_value._MapValueConst)
def test_create_invalid_user_attributes(self):
with self.assertRaises(TypeError):
self._tc(user_attributes=object())
def test_create_invalid_user_attributes_value_type(self):
with self.assertRaises(TypeError):
self._tc(user_attributes=23)
def test_attr_trace_class(self):
trace = self._tc()
self.assertEqual(trace.cls.addr, self._tc.addr)
self.assertIs(type(trace.cls), bt2_trace_class._TraceClass)
def test_const_attr_trace_class(self):
trace = utils.get_const_stream_beginning_message().stream.trace
self.assertIs(type(trace.cls), bt2_trace_class._TraceClassConst)
def test_attr_name(self):
trace = self._tc(name="mein trace")
self.assertEqual(trace.name, "mein trace")
def test_attr_uuid(self):
trace = self._tc(uuid=uuid.UUID("da7d6b6f-3108-4706-89bd-ab554732611b"))
self.assertEqual(trace.uuid, uuid.UUID("da7d6b6f-3108-4706-89bd-ab554732611b"))
def test_env_get(self):
trace = self._tc(environment={"hello": "you", "foo": -5})
self.assertIs(type(trace.environment), bt2_trace._TraceEnvironment)
self.assertIs(type(trace.environment["foo"]), bt2_value.SignedIntegerValue)
self.assertEqual(trace.environment["hello"], "you")
self.assertEqual(trace.environment["foo"], -5)
def test_env_iter(self):
trace = self._tc(environment={"hello": "you", "foo": -5})
values = set(trace.environment)
self.assertEqual(values, {"hello", "foo"})
def test_const_env_get(self):
trace = utils.get_const_stream_beginning_message().stream.trace
self.assertIs(type(trace.environment), bt2_trace._TraceEnvironmentConst)
self.assertIs(
type(trace.environment["patate"]), bt2_value._SignedIntegerValueConst
)
def test_const_env_iter(self):
trace = utils.get_const_stream_beginning_message().stream.trace
values = set(trace.environment)
self.assertEqual(values, {"patate"})
def test_const_env_set(self):
trace = utils.get_const_stream_beginning_message().stream.trace
with self.assertRaises(TypeError):
trace.environment["patate"] = 33
def test_env_get_non_existent(self):
trace = self._tc(environment={"hello": "you", "foo": -5})
with self.assertRaises(KeyError):
trace.environment["lel"]
def test_len(self):
trace = self._tc()
sc = self._tc.create_stream_class()
self.assertEqual(len(trace), 0)
trace.create_stream(sc)
self.assertEqual(len(trace), 1)
def _create_trace_with_some_streams(self):
sc = self._tc.create_stream_class(assigns_automatic_stream_id=False)
trace = self._tc()
trace.create_stream(sc, id=12)
trace.create_stream(sc, id=15)
trace.create_stream(sc, id=17)
return trace
def test_iter(self):
trace = self._create_trace_with_some_streams()
stream_ids = set(trace)
self.assertEqual(stream_ids, {12, 15, 17})
def test_getitem(self):
trace = self._create_trace_with_some_streams()
self.assertEqual(trace[12].id, 12)
self.assertIs(type(trace[12]), bt2_stream._Stream)
def test_const_getitem(self):
trace = utils.get_const_stream_beginning_message().stream.trace
self.assertIs(type(trace[0]), bt2_stream._StreamConst)
def test_getitem_invalid_key(self):
trace = self._create_trace_with_some_streams()
with self.assertRaises(KeyError):
trace[18]
def test_destruction_listener(self):
def on_trace_class_destruction(trace_class):
nonlocal num_trace_class_destroyed_calls
num_trace_class_destroyed_calls += 1
def on_trace_destruction(trace):
nonlocal type_of_passed_trace
type_of_passed_trace = type(trace)
nonlocal num_trace_destroyed_calls
num_trace_destroyed_calls += 1
num_trace_class_destroyed_calls = 0
num_trace_destroyed_calls = 0
type_of_passed_trace = None
trace_class = get_default_trace_class()
stream_class = trace_class.create_stream_class()
trace = trace_class()
stream = trace.create_stream(stream_class)
trace_class.add_destruction_listener(on_trace_class_destruction)
td_handle1 = trace.add_destruction_listener(on_trace_destruction)
td_handle2 = trace.add_destruction_listener(on_trace_destruction)
self.assertIs(type(td_handle1), bt2_utils._ListenerHandle)
trace.remove_destruction_listener(td_handle2)
self.assertEqual(num_trace_class_destroyed_calls, 0)
self.assertEqual(num_trace_destroyed_calls, 0)
del trace
self.assertEqual(num_trace_class_destroyed_calls, 0)
self.assertEqual(num_trace_destroyed_calls, 0)
del stream
self.assertEqual(num_trace_class_destroyed_calls, 0)
self.assertEqual(num_trace_destroyed_calls, 1)
self.assertIs(type_of_passed_trace, bt2_trace._TraceConst)
del trace_class
self.assertEqual(num_trace_class_destroyed_calls, 0)
self.assertEqual(num_trace_destroyed_calls, 1)
del stream_class
self.assertEqual(num_trace_class_destroyed_calls, 1)
self.assertEqual(num_trace_destroyed_calls, 1)
def test_remove_destruction_listener_wrong_type(self):
trace_class = get_default_trace_class()
trace = trace_class()
with self.assertRaisesRegex(
TypeError, r"'int' is not a '<class 'bt2.utils._ListenerHandle'>' object"
):
trace.remove_destruction_listener(123)
def test_remove_destruction_listener_wrong_object(self):
def on_trace_destruction(trace):
pass
trace_class_1 = get_default_trace_class()
trace1 = trace_class_1()
trace_class_2 = get_default_trace_class()
trace2 = trace_class_2()
handle1 = trace1.add_destruction_listener(on_trace_destruction)
with self.assertRaisesRegex(
ValueError,
r"This trace destruction listener does not match the trace object\.",
):
trace2.remove_destruction_listener(handle1)
def test_remove_destruction_listener_twice(self):
def on_trace_destruction(trace_class):
pass
trace_class = get_default_trace_class()
trace = trace_class()
handle = trace.add_destruction_listener(on_trace_destruction)
trace.remove_destruction_listener(handle)
with self.assertRaisesRegex(
ValueError, r"This trace destruction listener was already removed\."
):
trace.remove_destruction_listener(handle)
def test_raise_in_destruction_listener(self):
def on_trace_destruction(trace):
raise ValueError("it hurts")
trace_class = get_default_trace_class()
trace = trace_class()
trace.add_destruction_listener(on_trace_destruction)
del trace
if __name__ == "__main__":
unittest.main()
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