httpx/tests/test_exceptions.py
Adrian Garcia Badaracco 16e2830624
use # pragma: no cover instead of # pragma: nocover (#2471)
Co-authored-by: Tom Christie <tom@tomchristie.com>
2022-11-29 10:23:18 -06:00

87 lines
2.3 KiB
Python

from unittest import mock
import httpcore
import pytest
import httpx
from httpx._transports.default import HTTPCORE_EXC_MAP
def test_httpcore_all_exceptions_mapped() -> None:
"""
All exception classes exposed by HTTPCore are properly mapped to an HTTPX-specific
exception class.
"""
not_mapped = [
value
for name, value in vars(httpcore).items()
if isinstance(value, type)
and issubclass(value, Exception)
and value not in HTTPCORE_EXC_MAP
and value is not httpcore.ConnectionNotAvailable
]
if not_mapped: # pragma: no cover
pytest.fail(f"Unmapped httpcore exceptions: {not_mapped}")
def test_httpcore_exception_mapping(server) -> None:
"""
HTTPCore exception mapping works as expected.
"""
def connect_failed(*args, **kwargs):
raise httpcore.ConnectError()
class TimeoutStream:
def __iter__(self):
raise httpcore.ReadTimeout()
def close(self):
pass
with mock.patch(
"httpcore.ConnectionPool.handle_request", side_effect=connect_failed
):
with pytest.raises(httpx.ConnectError):
httpx.get(server.url)
with mock.patch(
"httpcore.ConnectionPool.handle_request",
return_value=httpcore.Response(
200, headers=[], content=TimeoutStream(), extensions={}
),
):
with pytest.raises(httpx.ReadTimeout):
httpx.get(server.url)
def test_httpx_exceptions_exposed() -> None:
"""
All exception classes defined in `httpx._exceptions`
are exposed as public API.
"""
not_exposed = [
value
for name, value in vars(httpx._exceptions).items()
if isinstance(value, type)
and issubclass(value, Exception)
and not hasattr(httpx, name)
]
if not_exposed: # pragma: no cover
pytest.fail(f"Unexposed HTTPX exceptions: {not_exposed}")
def test_request_attribute() -> None:
# Exception without request attribute
exc = httpx.ReadTimeout("Read operation timed out")
with pytest.raises(RuntimeError):
exc.request
# Exception with request attribute
request = httpx.Request("GET", "https://www.example.com")
exc = httpx.ReadTimeout("Read operation timed out", request=request)
assert exc.request == request