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import concurrent.futures as cf
import sys
from contextlib import contextmanager
from statsig import statsig
from statsig.statsig_user import StatsigUser
from random import random
from unittest.mock import Mock
import pytest
import sentry_sdk
from sentry_sdk.integrations.statsig import StatsigIntegration
@contextmanager
def mock_statsig(gate_dict):
old_check_gate = statsig.check_gate
def mock_check_gate(user, gate, *args, **kwargs):
return gate_dict.get(gate, False)
statsig.check_gate = Mock(side_effect=mock_check_gate)
yield
statsig.check_gate = old_check_gate
def test_check_gate(sentry_init, capture_events, uninstall_integration):
uninstall_integration(StatsigIntegration.identifier)
with mock_statsig({"hello": True, "world": False}):
sentry_init(integrations=[StatsigIntegration()])
events = capture_events()
user = StatsigUser(user_id="user-id")
statsig.check_gate(user, "hello")
statsig.check_gate(user, "world")
statsig.check_gate(user, "other") # unknown gates default to False.
sentry_sdk.capture_exception(Exception("something wrong!"))
assert len(events) == 1
assert events[0]["contexts"]["flags"] == {
"values": [
{"flag": "hello", "result": True},
{"flag": "world", "result": False},
{"flag": "other", "result": False},
]
}
def test_check_gate_threaded(sentry_init, capture_events, uninstall_integration):
uninstall_integration(StatsigIntegration.identifier)
with mock_statsig({"hello": True, "world": False}):
sentry_init(integrations=[StatsigIntegration()])
events = capture_events()
user = StatsigUser(user_id="user-id")
# Capture an eval before we split isolation scopes.
statsig.check_gate(user, "hello")
def task(flag_key):
# Creates a new isolation scope for the thread.
# This means the evaluations in each task are captured separately.
with sentry_sdk.isolation_scope():
statsig.check_gate(user, flag_key)
# use a tag to identify to identify events later on
sentry_sdk.set_tag("task_id", flag_key)
sentry_sdk.capture_exception(Exception("something wrong!"))
with cf.ThreadPoolExecutor(max_workers=2) as pool:
pool.map(task, ["world", "other"])
# Capture error in original scope
sentry_sdk.set_tag("task_id", "0")
sentry_sdk.capture_exception(Exception("something wrong!"))
assert len(events) == 3
events.sort(key=lambda e: e["tags"]["task_id"])
assert events[0]["contexts"]["flags"] == {
"values": [
{"flag": "hello", "result": True},
]
}
assert events[1]["contexts"]["flags"] == {
"values": [
{"flag": "hello", "result": True},
{"flag": "other", "result": False},
]
}
assert events[2]["contexts"]["flags"] == {
"values": [
{"flag": "hello", "result": True},
{"flag": "world", "result": False},
]
}
@pytest.mark.skipif(sys.version_info < (3, 7), reason="requires python3.7 or higher")
def test_check_gate_asyncio(sentry_init, capture_events, uninstall_integration):
asyncio = pytest.importorskip("asyncio")
uninstall_integration(StatsigIntegration.identifier)
with mock_statsig({"hello": True, "world": False}):
sentry_init(integrations=[StatsigIntegration()])
events = capture_events()
user = StatsigUser(user_id="user-id")
# Capture an eval before we split isolation scopes.
statsig.check_gate(user, "hello")
async def task(flag_key):
with sentry_sdk.isolation_scope():
statsig.check_gate(user, flag_key)
# use a tag to identify to identify events later on
sentry_sdk.set_tag("task_id", flag_key)
sentry_sdk.capture_exception(Exception("something wrong!"))
async def runner():
return asyncio.gather(task("world"), task("other"))
asyncio.run(runner())
# Capture error in original scope
sentry_sdk.set_tag("task_id", "0")
sentry_sdk.capture_exception(Exception("something wrong!"))
assert len(events) == 3
events.sort(key=lambda e: e["tags"]["task_id"])
assert events[0]["contexts"]["flags"] == {
"values": [
{"flag": "hello", "result": True},
]
}
assert events[1]["contexts"]["flags"] == {
"values": [
{"flag": "hello", "result": True},
{"flag": "other", "result": False},
]
}
assert events[2]["contexts"]["flags"] == {
"values": [
{"flag": "hello", "result": True},
{"flag": "world", "result": False},
]
}
def test_wraps_original(sentry_init, uninstall_integration):
uninstall_integration(StatsigIntegration.identifier)
flag_value = random() < 0.5
with mock_statsig(
{"test-flag": flag_value}
): # patches check_gate with a Mock object.
mock_check_gate = statsig.check_gate
sentry_init(integrations=[StatsigIntegration()]) # wraps check_gate.
user = StatsigUser(user_id="user-id")
res = statsig.check_gate(user, "test-flag", "extra-arg", kwarg=1) # type: ignore[arg-type]
assert res == flag_value
assert mock_check_gate.call_args == ( # type: ignore[attr-defined]
(user, "test-flag", "extra-arg"),
{"kwarg": 1},
)
def test_wrapper_attributes(sentry_init, uninstall_integration):
uninstall_integration(StatsigIntegration.identifier)
original_check_gate = statsig.check_gate
sentry_init(integrations=[StatsigIntegration()])
# Methods have not lost their qualified names after decoration.
assert statsig.check_gate.__name__ == "check_gate"
assert statsig.check_gate.__qualname__ == original_check_gate.__qualname__
# Clean up
statsig.check_gate = original_check_gate
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