1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
# SPDX-License-Identifier: MIT OR Apache-2.0
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the MIT License. See the LICENSE file in the root of this
# repository for complete details.
import sys
import pytest
from pretend import stub
from structlog._frames import (
_find_first_app_frame_and_name,
_format_exception,
_format_stack,
)
class TestFindFirstAppFrameAndName:
def test_ignores_structlog_by_default(self):
"""
No matter what you pass in, structlog frames get always ignored.
"""
f1 = stub(f_globals={"__name__": "test"}, f_back=None)
f2 = stub(f_globals={"__name__": "structlog.blubb"}, f_back=f1)
f, n = _find_first_app_frame_and_name(_getframe=lambda: f2)
assert (f1, "test") == (f, n)
def test_ignoring_of_additional_frame_names_works(self):
"""
Additional names are properly ignored too.
"""
f1 = stub(f_globals={"__name__": "test"}, f_back=None)
f2 = stub(f_globals={"__name__": "ignored.bar"}, f_back=f1)
f3 = stub(f_globals={"__name__": "structlog.blubb"}, f_back=f2)
f, n = _find_first_app_frame_and_name(
additional_ignores=["ignored"], _getframe=lambda: f3
)
assert (f1, "test") == (f, n)
def test_tolerates_missing_name(self):
"""
Use ``?`` if `f_globals` lacks a `__name__` key
"""
f1 = stub(f_globals={}, f_back=None)
f, n = _find_first_app_frame_and_name(_getframe=lambda: f1)
assert (f1, "?") == (f, n)
def test_tolerates_name_explicitly_None_oneframe(self):
"""
Use ``?`` if `f_globals` has a `None` valued `__name__` key
"""
f1 = stub(f_globals={"__name__": None}, f_back=None)
f, n = _find_first_app_frame_and_name(_getframe=lambda: f1)
assert (f1, "?") == (f, n)
def test_tolerates_name_explicitly_None_manyframe(self):
"""
Use ``?`` if `f_globals` has a `None` valued `__name__` key,
multiple frames up.
"""
f1 = stub(f_globals={"__name__": None}, f_back=None)
f2 = stub(f_globals={"__name__": "structlog.blubb"}, f_back=f1)
f, n = _find_first_app_frame_and_name(_getframe=lambda: f2)
assert (f1, "?") == (f, n)
def test_tolerates_f_back_is_None(self):
"""
Use ``?`` if all frames are in ignored frames.
"""
f1 = stub(f_globals={"__name__": "structlog"}, f_back=None)
f, n = _find_first_app_frame_and_name(_getframe=lambda: f1)
assert (f1, "?") == (f, n)
@pytest.fixture
def exc_info():
"""
Fake a valid exc_info.
"""
try:
raise ValueError
except ValueError:
return sys.exc_info()
class TestFormatException:
def test_returns_str(self, exc_info):
"""
Always returns a native string.
"""
assert isinstance(_format_exception(exc_info), str)
def test_formats(self, exc_info):
"""
The passed exc_info is formatted.
"""
assert _format_exception(exc_info).startswith(
"Traceback (most recent call last):\n"
)
def test_no_trailing_nl(self, exc_info, monkeypatch):
"""
Trailing newlines are snipped off but if the string does not contain
one nothing is removed.
"""
from structlog._frames import traceback
monkeypatch.setattr(
traceback, "print_exception", lambda *a: a[-1].write("foo")
)
assert "foo" == _format_exception(exc_info)
class TestFormatStack:
def test_returns_str(self):
"""
Always returns a native string.
"""
assert isinstance(_format_stack(sys._getframe()), str)
def test_formats(self):
"""
The passed stack is formatted.
"""
assert _format_stack(sys._getframe()).startswith(
"Stack (most recent call last):\n"
)
def test_no_trailing_nl(self, monkeypatch):
"""
Trailing newlines are snipped off but if the string does not contain
one nothing is removed.
"""
from structlog._frames import traceback
monkeypatch.setattr(
traceback, "print_stack", lambda frame, file: file.write("foo")
)
assert _format_stack(sys._getframe()).endswith("foo")
|
