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""" Test scripts
Test that we can run executable scripts that have been installed with numpy.
"""
from __future__ import division, print_function, absolute_import
import sys
import os
import pytest
from os.path import join as pathjoin, isfile, dirname, basename
from subprocess import Popen, PIPE
import numpy as np
from numpy.compat.py3k import basestring
from numpy.testing import assert_, assert_equal
is_inplace = isfile(pathjoin(dirname(np.__file__), '..', 'setup.py'))
def run_command(cmd, check_code=True):
""" Run command sequence `cmd` returning exit code, stdout, stderr
Parameters
----------
cmd : str or sequence
string with command name or sequence of strings defining command
check_code : {True, False}, optional
If True, raise error for non-zero return code
Returns
-------
returncode : int
return code from execution of `cmd`
stdout : bytes (python 3) or str (python 2)
stdout from `cmd`
stderr : bytes (python 3) or str (python 2)
stderr from `cmd`
Raises
------
RuntimeError
If `check_code` is True, and return code !=0
"""
cmd = [cmd] if isinstance(cmd, basestring) else list(cmd)
if os.name == 'nt':
# Quote any arguments with spaces. The quotes delimit the arguments
# on Windows, and the arguments might be file paths with spaces.
# On Unix the list elements are each separate arguments.
cmd = ['"{0}"'.format(c) if ' ' in c else c for c in cmd]
proc = Popen(cmd, stdout=PIPE, stderr=PIPE)
stdout, stderr = proc.communicate()
if proc.poll() is None:
proc.terminate()
if check_code and proc.returncode != 0:
raise RuntimeError('\n'.join(
['Command "{0}" failed with',
'stdout', '------', '{1}', '',
'stderr', '------', '{2}']).format(cmd, stdout, stderr))
return proc.returncode, stdout, stderr
@pytest.mark.skipif(is_inplace, reason="Cannot test f2py command inplace")
def test_f2py():
# test that we can run f2py script
if sys.platform == 'win32':
exe_dir = dirname(sys.executable)
if exe_dir.endswith('Scripts'): # virtualenv
f2py_cmd = r"%s\f2py.py" % exe_dir
else:
f2py_cmd = r"%s\Scripts\f2py.py" % exe_dir
code, stdout, stderr = run_command([sys.executable, f2py_cmd, '-v'])
success = stdout.strip() == b'2'
assert_(success, "Warning: f2py not found in path")
else:
version = sys.version_info
major = str(version.major)
minor = str(version.minor)
f2py_cmds = ('f2py', 'f2py' + major, 'f2py' + major + '.' + minor)
success = False
for f2py_cmd in f2py_cmds:
try:
code, stdout, stderr = run_command([f2py_cmd, '-v'])
assert_equal(stdout.strip(), b'2')
success = True
break
except Exception:
pass
msg = "Warning: neither %s nor %s nor %s found in path" % f2py_cmds
assert_(success, msg)
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