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
|
# ############################################################################ #
# #
# ::: :::::::: #
# test.py :+: :+: :+: #
# +:+ +:+ +:+ #
# By: charles <charles.cabergs@gmail.com> +#+ +:+ +#+ #
# +#+#+#+#+#+ +#+ #
# Created: 2020/06/16 21:48:50 by charles #+# #+# #
# Updated: 2020/09/17 11:05:46 by charles ### ########.fr #
# #
# ############################################################################ #
import os
import sys
import subprocess
# import time
import config
from test.captured import Captured
from test.result import Result
import sandbox
class Test:
def __init__(self,
cmd: str,
setup: str = "",
files: [str] = [],
exports: {str: str} = {},
timeout: float = config.TIMEOUT,
signal=None,
hook=[]):
"""Test class
cmd: command to execute
setup: command to execute before tested command
files: files to watch (check content after test)
exports: exported variables
timeout: maximum amount of time taken by the test
signal: signal to send to the test
hook: function to execute on the output of the test
"""
self.cmd = cmd
self.setup = setup
self.files = files
self.exports = exports
self.result = None
self.timeout = timeout
self.signal = signal
self.hook = hook
if type(self.hook) is not list:
self.hook = [self.hook]
def run(self):
"""Run the test for minishell and the reference shell and print the result out"""
expected = self._run_sandboxed(config.REFERENCE_PATH, config.REFERENCE_ARGS + ["-c"])
actual = self._run_sandboxed(config.MINISHELL_PATH, ["-c"])
s = self.cmd
if self.setup != "":
s = "[SETUP {}] {}".format(self.setup, s)
if len(self.exports) != 0:
s = "[EXPORTS {}] {}".format(
' '.join(["{}='{:.20}'".format(k, v) for k, v in self.exports.items()]), s)
self.result = Result(s, self.files, expected, actual)
self.result.put()
def _run_sandboxed(self, shell_path: str, shell_options: str) -> Captured:
""" Run the command in a sandbox environment """
with sandbox.context():
if self.setup != "":
try:
subprocess.run(
self.setup,
shell=True,
cwd=config.SANDBOX_PATH,
stderr=subprocess.STDOUT,
stdout=subprocess.PIPE,
check=True
)
except subprocess.CalledProcessError as e:
print("Error: `{}` setup command failed for `{}`\n\twith '{}'"
.format(self.setup,
self.cmd,
"no stderr" if e.stdout is None
else e.stdout.decode().strip()))
sys.exit(1)
return self._run_capture(shell_path, shell_options)
def _run_capture(self, shell_path: str, shell_options: str) -> Captured:
""" Capture the output (stdout and stderr)
Capture the content of the watched files after the command is run
"""
# run the command in the sandbox
process = subprocess.Popen(
[shell_path, *shell_options, self.cmd],
stderr=subprocess.STDOUT,
stdout=subprocess.PIPE,
cwd=config.SANDBOX_PATH,
env={
'PATH': config.PATH_VARIABLE,
'TERM': 'xterm-256color',
**self.exports,
},
)
# if self.signal is not None:
# time.sleep(0.2)
# process.send_signal(self.signal)
# else:
# https://docs.python.org/3/library/subprocess.html#subprocess.Popen.communicate
try:
stdout, _ = process.communicate(timeout=self.timeout)
except subprocess.TimeoutExpired:
process.kill()
# _, _ = process.communicate(timeout=2)
return Captured.timeout()
try:
output = stdout.decode()
except UnicodeDecodeError:
output = "UNICODE ERROR: {}".format(process.stdout)
# capture watched files content
files_content = []
for file_name in self.files:
try:
with open(os.path.join(config.SANDBOX_PATH, file_name), "rb") as f:
files_content.append(f.read().decode())
except FileNotFoundError:
files_content.append(None)
# sandbox.remove()
for h in self.hook:
output = h(output)
return Captured(output, process.returncode, files_content)
|
