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from __future__ import annotations
import typing
import httpcore
import pytest
import httpx
if typing.TYPE_CHECKING: # pragma: no cover
from conftest import TestServer
def test_httpcore_all_exceptions_mapped() -> None:
"""
All exception classes exposed by HTTPCore are properly mapped to an HTTPX-specific
exception class.
"""
expected_mapped_httpcore_exceptions = {
value.__name__
for _, value in vars(httpcore).items()
if isinstance(value, type)
and issubclass(value, Exception)
and value is not httpcore.ConnectionNotAvailable
}
httpx_exceptions = {
value.__name__
for _, value in vars(httpx).items()
if isinstance(value, type) and issubclass(value, Exception)
}
unmapped_exceptions = expected_mapped_httpcore_exceptions - httpx_exceptions
if unmapped_exceptions: # pragma: no cover
pytest.fail(f"Unmapped httpcore exceptions: {unmapped_exceptions}")
def test_httpcore_exception_mapping(server: TestServer) -> None:
"""
HTTPCore exception mapping works as expected.
"""
impossible_port = 123456
with pytest.raises(httpx.ConnectError):
httpx.get(server.url.copy_with(port=impossible_port))
with pytest.raises(httpx.ReadTimeout):
httpx.get(
server.url.copy_with(path="/slow_response"),
timeout=httpx.Timeout(5, read=0.01),
)
def test_request_attribute() -> None:
# Exception without request attribute
exc = httpx.ReadTimeout("Read operation timed out")
with pytest.raises(RuntimeError):
exc.request # noqa: B018
# 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
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