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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 os
from os.path import join as pathjoin, isfile, dirname, basename
import sys
from subprocess import Popen, PIPE
import numpy as np
from numpy.compat.py3k import basestring, asbytes
from nose.tools import assert_equal
from numpy.testing.decorators import skipif
skipif_inplace = skipif(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() == 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
@skipif_inplace
def test_f2py():
# test that we can run f2py script
if sys.platform == 'win32':
f2py_cmd = r"%s\Scripts\f2py.py" % dirname(sys.executable)
code, stdout, stderr = run_command([sys.executable, f2py_cmd, '-v'])
else:
f2py_cmd = 'f2py' + basename(sys.executable)[6:]
code, stdout, stderr = run_command([f2py_cmd, '-v'])
assert_equal(stdout.strip(), asbytes('2'))
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