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113 lines
2.9 KiB
113 lines
2.9 KiB
3 years ago
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import re
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import sys
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import traceback
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from typing import NoReturn
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import pytest
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from .._util import (
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bytesify,
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LocalProtocolError,
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ProtocolError,
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RemoteProtocolError,
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Sentinel,
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validate,
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)
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def test_ProtocolError() -> None:
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with pytest.raises(TypeError):
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ProtocolError("abstract base class")
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def test_LocalProtocolError() -> None:
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try:
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raise LocalProtocolError("foo")
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except LocalProtocolError as e:
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assert str(e) == "foo"
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assert e.error_status_hint == 400
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try:
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raise LocalProtocolError("foo", error_status_hint=418)
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except LocalProtocolError as e:
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assert str(e) == "foo"
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assert e.error_status_hint == 418
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def thunk() -> NoReturn:
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raise LocalProtocolError("a", error_status_hint=420)
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try:
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try:
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thunk()
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except LocalProtocolError as exc1:
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orig_traceback = "".join(traceback.format_tb(sys.exc_info()[2]))
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exc1._reraise_as_remote_protocol_error()
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except RemoteProtocolError as exc2:
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assert type(exc2) is RemoteProtocolError
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assert exc2.args == ("a",)
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assert exc2.error_status_hint == 420
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new_traceback = "".join(traceback.format_tb(sys.exc_info()[2]))
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assert new_traceback.endswith(orig_traceback)
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def test_validate() -> None:
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my_re = re.compile(br"(?P<group1>[0-9]+)\.(?P<group2>[0-9]+)")
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with pytest.raises(LocalProtocolError):
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validate(my_re, b"0.")
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groups = validate(my_re, b"0.1")
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assert groups == {"group1": b"0", "group2": b"1"}
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# successful partial matches are an error - must match whole string
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with pytest.raises(LocalProtocolError):
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validate(my_re, b"0.1xx")
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with pytest.raises(LocalProtocolError):
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validate(my_re, b"0.1\n")
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def test_validate_formatting() -> None:
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my_re = re.compile(br"foo")
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with pytest.raises(LocalProtocolError) as excinfo:
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validate(my_re, b"", "oops")
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assert "oops" in str(excinfo.value)
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with pytest.raises(LocalProtocolError) as excinfo:
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validate(my_re, b"", "oops {}")
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assert "oops {}" in str(excinfo.value)
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with pytest.raises(LocalProtocolError) as excinfo:
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validate(my_re, b"", "oops {} xx", 10)
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assert "oops 10 xx" in str(excinfo.value)
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def test_make_sentinel() -> None:
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class S(Sentinel, metaclass=Sentinel):
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pass
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assert repr(S) == "S"
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assert S == S
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assert type(S).__name__ == "S"
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assert S in {S}
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assert type(S) is S
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class S2(Sentinel, metaclass=Sentinel):
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pass
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assert repr(S2) == "S2"
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assert S != S2
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assert S not in {S2}
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assert type(S) is not type(S2)
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def test_bytesify() -> None:
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assert bytesify(b"123") == b"123"
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assert bytesify(bytearray(b"123")) == b"123"
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assert bytesify("123") == b"123"
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with pytest.raises(UnicodeEncodeError):
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bytesify("\u1234")
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with pytest.raises(TypeError):
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bytesify(10)
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