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import sys
import subprocess
import py
import cffi.pkgconfig as pkgconfig
from cffi import PkgConfigError
def mock_call(libname, flag):
assert libname=="foobarbaz"
flags = {
"--cflags": "-I/usr/include/python3.6m -DABCD -DCFFI_TEST=1 -O42\n",
"--libs": "-L/usr/lib64 -lpython3.6 -shared\n",
}
return flags[flag]
def test_merge_flags():
d1 = {"ham": [1, 2, 3], "spam" : ["a", "b", "c"], "foo" : []}
d2 = {"spam" : ["spam", "spam", "spam"], "bar" : ["b", "a", "z"]}
pkgconfig.merge_flags(d1, d2)
assert d1 == {
"ham": [1, 2, 3],
"spam" : ["a", "b", "c", "spam", "spam", "spam"],
"bar" : ["b", "a", "z"],
"foo" : []}
def test_pkgconfig():
assert pkgconfig.flags_from_pkgconfig([]) == {}
saved = pkgconfig.call
try:
pkgconfig.call = mock_call
flags = pkgconfig.flags_from_pkgconfig(["foobarbaz"])
finally:
pkgconfig.call = saved
assert flags == {
'include_dirs': ['/usr/include/python3.6m'],
'library_dirs': ['/usr/lib64'],
'libraries': ['python3.6'],
'define_macros': [('ABCD', None), ('CFFI_TEST', '1')],
'extra_compile_args': ['-O42'],
'extra_link_args': ['-shared']
}
class mock_subprocess:
PIPE = Ellipsis
class Popen:
def __init__(self, cmd, stdout, stderr):
if mock_subprocess.RESULT is None:
raise OSError("oops can't run")
assert cmd == ['pkg-config', '--print-errors', '--cflags', 'libfoo']
def communicate(self):
bout, berr, rc = mock_subprocess.RESULT
self.returncode = rc
return bout, berr
def test_call():
saved = pkgconfig.subprocess
try:
pkgconfig.subprocess = mock_subprocess
mock_subprocess.RESULT = None
e = py.test.raises(PkgConfigError, pkgconfig.call, "libfoo", "--cflags")
assert str(e.value) == "cannot run pkg-config: oops can't run"
mock_subprocess.RESULT = b"", "Foo error!\n", 1
e = py.test.raises(PkgConfigError, pkgconfig.call, "libfoo", "--cflags")
assert str(e.value) == "Foo error!"
mock_subprocess.RESULT = b"abc\\def\n", "", 0
e = py.test.raises(PkgConfigError, pkgconfig.call, "libfoo", "--cflags")
assert str(e.value).startswith("pkg-config --cflags libfoo returned an "
"unsupported backslash-escaped output:")
mock_subprocess.RESULT = b"abc def\n", "", 0
result = pkgconfig.call("libfoo", "--cflags")
assert result == "abc def\n"
mock_subprocess.RESULT = b"abc def\n", "", 0
result = pkgconfig.call("libfoo", "--cflags")
assert result == "abc def\n"
if sys.version_info >= (3,):
mock_subprocess.RESULT = b"\xff\n", "", 0
e = py.test.raises(PkgConfigError, pkgconfig.call,
"libfoo", "--cflags", encoding="utf-8")
assert str(e.value) == (
"pkg-config --cflags libfoo returned bytes that cannot be "
"decoded with encoding 'utf-8':\nb'\\xff\\n'")
finally:
pkgconfig.subprocess = saved
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