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b992a0e102
requires them. Disable executable bits and shebang lines in test and benchmark files in order to prevent using a random system python, and in source files of modules which don't provide command line interface. Fixed shebang line to use python3 executable in the unittestgui script.
65 lines
1.9 KiB
Python
65 lines
1.9 KiB
Python
"""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 unittest
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from test import support
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import os, sys
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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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class PopenTest(unittest.TestCase):
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def _do_test_commandline(self, cmdline, expected):
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cmd = '%s -c "import sys; print(sys.argv)" %s'
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cmd = cmd % (python, cmdline)
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with os.popen(cmd) as p:
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data = p.read()
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got = eval(data)[1:] # strip off argv[0]
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self.assertEqual(got, expected)
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def test_popen(self):
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self.assertRaises(TypeError, os.popen)
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self._do_test_commandline(
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"foo bar",
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["foo", "bar"]
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)
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self._do_test_commandline(
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'foo "spam and eggs" "silly walk"',
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["foo", "spam and eggs", "silly walk"]
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)
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self._do_test_commandline(
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'foo "a \\"quoted\\" arg" bar',
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["foo", 'a "quoted" arg', "bar"]
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)
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support.reap_children()
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def test_return_code(self):
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self.assertEqual(os.popen("exit 0").close(), None)
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if os.name == 'nt':
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self.assertEqual(os.popen("exit 42").close(), 42)
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else:
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self.assertEqual(os.popen("exit 42").close(), 42 << 8)
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def test_contextmanager(self):
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with os.popen("echo hello") as f:
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self.assertEqual(f.read(), "hello\n")
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def test_iterating(self):
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with os.popen("echo hello") as f:
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self.assertEqual(list(f), ["hello\n"])
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def test_main():
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support.run_unittest(PopenTest)
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if __name__ == "__main__":
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test_main()
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