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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
import py
import sys, os, re
import shutil, subprocess, time
from testing.udir import udir
import cffi
local_dir = os.path.dirname(os.path.abspath(__file__))
_link_error = '?'
def check_lib_python_found(tmpdir):
global _link_error
if _link_error == '?':
ffi = cffi.FFI()
kwds = {}
ffi._apply_embedding_fix(kwds)
ffi.set_source("_test_lib_python_found", "", **kwds)
try:
ffi.compile(tmpdir=tmpdir, verbose=True)
except cffi.VerificationError as e:
_link_error = e
else:
_link_error = None
if _link_error:
py.test.skip(str(_link_error))
def prefix_pythonpath():
cffi_base = os.path.dirname(os.path.dirname(local_dir))
pythonpath = org_env.get('PYTHONPATH', '').split(os.pathsep)
if cffi_base not in pythonpath:
pythonpath.insert(0, cffi_base)
return os.pathsep.join(pythonpath)
def copy_away_env():
global org_env
try:
org_env
except NameError:
org_env = os.environ.copy()
class EmbeddingTests:
_compiled_modules = {}
def setup_method(self, meth):
check_lib_python_found(str(udir.ensure('embedding', dir=1)))
self._path = udir.join('embedding', meth.__name__)
if sys.platform == "win32" or sys.platform == "darwin":
self._compiled_modules.clear() # workaround
def get_path(self):
return str(self._path.ensure(dir=1))
def _run_base(self, args, **kwds):
print('RUNNING:', args, kwds)
return subprocess.Popen(args, **kwds)
def _run(self, args):
popen = self._run_base(args, cwd=self.get_path(),
stdout=subprocess.PIPE,
universal_newlines=True)
output = popen.stdout.read()
err = popen.wait()
if err:
raise OSError("popen failed with exit code %r: %r" % (
err, args))
print(output.rstrip())
return output
def prepare_module(self, name):
self.patch_environment()
if name not in self._compiled_modules:
path = self.get_path()
filename = '%s.py' % name
# NOTE: if you have an .egg globally installed with an older
# version of cffi, this will not work, because sys.path ends
# up with the .egg before the PYTHONPATH entries. I didn't
# find a solution to that: we could hack sys.path inside the
# script run here, but we can't hack it in the same way in
# execute().
pathname = os.path.join(path, filename)
with open(pathname, 'w') as g:
g.write('''
# https://bugs.python.org/issue23246
import sys
if sys.platform == 'win32':
try:
import setuptools
except ImportError:
pass
''')
with open(os.path.join(local_dir, filename), 'r') as f:
g.write(f.read())
output = self._run([sys.executable, pathname])
match = re.compile(r"\bFILENAME: (.+)").search(output)
assert match
dynamic_lib_name = match.group(1)
if sys.platform == 'win32':
assert dynamic_lib_name.endswith('_cffi.dll')
elif sys.platform == 'darwin':
assert dynamic_lib_name.endswith('_cffi.dylib')
else:
assert dynamic_lib_name.endswith('_cffi.so')
self._compiled_modules[name] = dynamic_lib_name
return self._compiled_modules[name]
def compile(self, name, modules, opt=False, threads=False, defines={}):
path = self.get_path()
filename = '%s.c' % name
shutil.copy(os.path.join(local_dir, filename), path)
shutil.copy(os.path.join(local_dir, 'thread-test.h'), path)
import distutils.ccompiler
curdir = os.getcwd()
try:
os.chdir(self.get_path())
c = distutils.ccompiler.new_compiler()
print('compiling %s with %r' % (name, modules))
extra_preargs = []
debug = True
if sys.platform == 'win32':
libfiles = []
for m in modules:
m = os.path.basename(m)
assert m.endswith('.dll')
libfiles.append('Release\\%s.lib' % m[:-4])
modules = libfiles
extra_preargs.append('/MANIFEST')
debug = False # you need to install extra stuff
# for this to work
elif threads:
extra_preargs.append('-pthread')
objects = c.compile([filename], macros=sorted(defines.items()),
debug=debug)
c.link_executable(objects + modules, name, extra_preargs=extra_preargs)
finally:
os.chdir(curdir)
def patch_environment(self):
copy_away_env()
path = self.get_path()
# for libpypy-c.dll or Python27.dll
path = os.path.split(sys.executable)[0] + os.path.pathsep + path
env_extra = {'PYTHONPATH': prefix_pythonpath()}
if sys.platform == 'win32':
envname = 'PATH'
else:
envname = 'LD_LIBRARY_PATH'
libpath = org_env.get(envname)
if libpath:
libpath = path + os.path.pathsep + libpath
else:
libpath = path
env_extra[envname] = libpath
for key, value in sorted(env_extra.items()):
if os.environ.get(key) != value:
print('* setting env var %r to %r' % (key, value))
os.environ[key] = value
def execute(self, name):
path = self.get_path()
print('running %r in %r' % (name, path))
executable_name = name
if sys.platform == 'win32':
executable_name = os.path.join(path, executable_name + '.exe')
else:
executable_name = os.path.join('.', executable_name)
popen = self._run_base([executable_name], cwd=path,
stdout=subprocess.PIPE,
universal_newlines=True)
result = popen.stdout.read()
err = popen.wait()
if err:
raise OSError("%r failed with exit code %r" % (name, err))
return result
class TestBasic(EmbeddingTests):
def test_empty(self):
empty_cffi = self.prepare_module('empty')
def test_basic(self):
add1_cffi = self.prepare_module('add1')
self.compile('add1-test', [add1_cffi])
output = self.execute('add1-test')
assert output == ("preparing...\n"
"adding 40 and 2\n"
"adding 100 and -5\n"
"got: 42 95\n")
def test_two_modules(self):
add1_cffi = self.prepare_module('add1')
add2_cffi = self.prepare_module('add2')
self.compile('add2-test', [add1_cffi, add2_cffi])
output = self.execute('add2-test')
assert output == ("preparing...\n"
"adding 40 and 2\n"
"prepADD2\n"
"adding 100 and -5 and -20\n"
"got: 42 75\n")
|
