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pre-commit/tests/error_handler_test.py at wip_progress_dots · pre-commit/pre-commit · GitHub
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error_handler_test.py
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tests
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error_handler_test.py
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# -*- coding: utf-8 -*-
from
__future__
import
absolute_import
from
__future__
import
unicode_literals
import
io
import
os
.
path
import
re
import
sys
import
mock
import
pytest
from
pre_commit
import
error_handler
from
testing
.
util
import
cmd_output_mocked_pre_commit_home
@
pytest
.
fixture
def
mocked_log_and_exit
():
with
mock
.
patch
.
object
(
error_handler
,
'_log_and_exit'
)
as
log_and_exit
:
yield
log_and_exit
def
test_error_handler_no_exception
(
mocked_log_and_exit
):
with
error_handler
.
error_handler
():
pass
assert
mocked_log_and_exit
.
call_count
==
0
def
test_error_handler_fatal_error
(
mocked_log_and_exit
):
exc
=
error_handler
.
FatalError
(
'just a test'
)
with
error_handler
.
error_handler
():
raise
exc
mocked_log_and_exit
.
assert_called_once_with
(
'An error has occurred'
,
exc
,
# Tested below
mock
.
ANY
,
)
assert
re
.
match
(
r'Traceback \(most recent call last\):\n'
r' File ".+pre_commit.error_handler.py", line \d+, in error_handler\n'
r' yield\n'
r' File ".+tests.error_handler_test.py", line \d+, '
r'in test_error_handler_fatal_error\n'
r' raise exc\n'
r'(pre_commit\.error_handler\.)?FatalError: just a test\n'
,
mocked_log_and_exit
.
call_args
[
0
][
2
],
)
def
test_error_handler_uncaught_error
(
mocked_log_and_exit
):
exc
=
ValueError
(
'another test'
)
with
error_handler
.
error_handler
():
raise
exc
mocked_log_and_exit
.
assert_called_once_with
(
'An unexpected error has occurred'
,
exc
,
# Tested below
mock
.
ANY
,
)
assert
re
.
match
(
r'Traceback \(most recent call last\):\n'
r' File ".+pre_commit.error_handler.py", line \d+, in error_handler\n'
r' yield\n'
r' File ".+tests.error_handler_test.py", line \d+, '
r'in test_error_handler_uncaught_error\n'
r' raise exc\n'
r'ValueError: another test\n'
,
mocked_log_and_exit
.
call_args
[
0
][
2
],
)
def
test_error_handler_keyboardinterrupt
(
mocked_log_and_exit
):
exc
=
KeyboardInterrupt
()
with
error_handler
.
error_handler
():
raise
exc
mocked_log_and_exit
.
assert_called_once_with
(
'Interrupted (^C)'
,
exc
,
# Tested below
mock
.
ANY
,
)
assert
re
.
match
(
r'Traceback \(most recent call last\):\n'
r' File ".+pre_commit.error_handler.py", line \d+, in error_handler\n'
r' yield\n'
r' File ".+tests.error_handler_test.py", line \d+, '
r'in test_error_handler_keyboardinterrupt\n'
r' raise exc\n'
r'KeyboardInterrupt\n'
,
mocked_log_and_exit
.
call_args
[
0
][
2
],
)
def
test_log_and_exit
(
cap_out
,
mock_store_dir
):
with
pytest
.
raises
(
SystemExit
):
error_handler
.
_log_and_exit
(
'msg'
,
error_handler
.
FatalError
(
'hai'
),
"I'm a stacktrace"
,
)
printed
=
cap_out
.
get
()
log_file
=
os
.
path
.
join
(
mock_store_dir
,
'pre-commit.log'
)
assert
printed
==
(
'msg: FatalError: hai
\n
'
'Check the log at {}
\n
'
.
format
(
log_file
)
)
assert
os
.
path
.
exists
(
log_file
)
with
io
.
open
(
log_file
)
as
f
:
logged
=
f
.
read
()
expected
=
(
r'^### version information\n'
r'\n'
r'```\n'
r'pre-commit version: \d+\.\d+\.\d+\n'
r'sys.version:\n'
r'( .*\n)*'
r'sys.executable: .*\n'
r'os.name: .*\n'
r'sys.platform: .*\n'
r'```\n'
r'\n'
r'### error information\n'
r'\n'
r'```\n'
r'msg: FatalError: hai\n'
r'```\n'
r'\n'
r'```\n'
r"I'm a stacktrace\n"
r'```\n'
)
assert
re
.
match
(
expected
,
logged
)
def
test_error_handler_non_ascii_exception
(
mock_store_dir
):
with
pytest
.
raises
(
SystemExit
):
with
error_handler
.
error_handler
():
raise
ValueError
(
'☃'
)
def
test_error_handler_no_tty
(
tempdir_factory
):
pre_commit_home
=
tempdir_factory
.
get
()
output
=
cmd_output_mocked_pre_commit_home
(
sys
.
executable
,
'-c'
,
'from __future__ import unicode_literals
\n
'
'from pre_commit.error_handler import error_handler
\n
'
'with error_handler():
\n
'
' raise ValueError("
\\
u2603")
\n
'
,
retcode
=
1
,
tempdir_factory
=
tempdir_factory
,
pre_commit_home
=
pre_commit_home
,
)
log_file
=
os
.
path
.
join
(
pre_commit_home
,
'pre-commit.log'
)
output_lines
=
output
[
1
].
replace
(
'
\r
'
,
''
).
splitlines
()
assert
(
output_lines
[
-
2
]
==
'An unexpected error has occurred: ValueError: ☃'
)
assert
output_lines
[
-
1
]
==
'Check the log at {}'
.
format
(
log_file
)
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