41 lines
1.4 KiB
Python
41 lines
1.4 KiB
Python
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#! /usr/bin/env python
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"""Basic tests for os.popen()
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Particularly useful for platforms that fake popen.
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"""
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import os
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import sys
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from test.test_support import TestSkipped, reap_children
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from os import popen
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# Test that command-lines get down as we expect.
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# To do this we execute:
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# python -c "import sys;print sys.argv" {rest_of_commandline}
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# This results in Python being spawned and printing the sys.argv list.
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# We can then eval() the result of this, and see what each argv was.
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python = sys.executable
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if ' ' in python:
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python = '"' + python + '"' # quote embedded space for cmdline
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def _do_test_commandline(cmdline, expected):
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cmd = '%s -c "import sys;print sys.argv" %s' % (python, cmdline)
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data = popen(cmd).read()
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got = eval(data)[1:] # strip off argv[0]
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if got != expected:
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print "Error in popen commandline handling."
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print " executed '%s', expected '%r', but got '%r'" \
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% (cmdline, expected, got)
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def _test_commandline():
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_do_test_commandline("foo bar", ["foo", "bar"])
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_do_test_commandline('foo "spam and eggs" "silly walk"', ["foo", "spam and eggs", "silly walk"])
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_do_test_commandline('foo "a \\"quoted\\" arg" bar', ["foo", 'a "quoted" arg', "bar"])
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print "popen seemed to process the command-line correctly"
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def main():
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print "Test popen:"
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_test_commandline()
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reap_children()
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main()
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