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920dae64 AT |
1 | #! /usr/bin/env python |
2 | """Basic tests for os.popen() | |
3 | ||
4 | Particularly useful for platforms that fake popen. | |
5 | """ | |
6 | ||
7 | import os | |
8 | import sys | |
9 | from test.test_support import TestSkipped | |
10 | from os import popen | |
11 | ||
12 | # Test that command-lines get down as we expect. | |
13 | # To do this we execute: | |
14 | # python -c "import sys;print sys.argv" {rest_of_commandline} | |
15 | # This results in Python being spawned and printing the sys.argv list. | |
16 | # We can then eval() the result of this, and see what each argv was. | |
17 | python = sys.executable | |
18 | if ' ' in python: | |
19 | python = '"' + python + '"' # quote embedded space for cmdline | |
20 | def _do_test_commandline(cmdline, expected): | |
21 | cmd = '%s -c "import sys;print sys.argv" %s' % (python, cmdline) | |
22 | data = popen(cmd).read() | |
23 | got = eval(data)[1:] # strip off argv[0] | |
24 | if got != expected: | |
25 | print "Error in popen commandline handling." | |
26 | print " executed '%s', expected '%r', but got '%r'" \ | |
27 | % (cmdline, expected, got) | |
28 | ||
29 | def _test_commandline(): | |
30 | _do_test_commandline("foo bar", ["foo", "bar"]) | |
31 | _do_test_commandline('foo "spam and eggs" "silly walk"', ["foo", "spam and eggs", "silly walk"]) | |
32 | _do_test_commandline('foo "a \\"quoted\\" arg" bar', ["foo", 'a "quoted" arg', "bar"]) | |
33 | print "popen seemed to process the command-line correctly" | |
34 | ||
35 | def main(): | |
36 | print "Test popen:" | |
37 | _test_commandline() | |
38 | ||
39 | main() |