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authorJörg Frings-Fürst <debian@jff-webhosting.net>2017-10-03 06:26:58 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2017-10-03 06:26:58 +0200
commit27b47b5db42407baf5d704bf52c35015b2c0ad7b (patch)
tree320f8d5fc315c211f7d073891bd7117754f5f5b3 /QMTest/TestCmdTests.py
parent6be31f5d140b81227911cabfc61d3802c76c1b61 (diff)
parentfabd454ddf505302bf41ef4da0609437c29d5605 (diff)
Merge branch 'release/3.0.0+repack-1'3.0.0+repack-1
Diffstat (limited to 'QMTest/TestCmdTests.py')
-rw-r--r--QMTest/TestCmdTests.py266
1 files changed, 138 insertions, 128 deletions
diff --git a/QMTest/TestCmdTests.py b/QMTest/TestCmdTests.py
index 1044ed1..b9226fd 100644
--- a/QMTest/TestCmdTests.py
+++ b/QMTest/TestCmdTests.py
@@ -26,13 +26,14 @@ import os
import shutil
import signal
import stat
-import StringIO
+from StringIO import StringIO
import sys
import tempfile
import time
import types
import unittest
-import UserList
+from UserList import UserList
+
# Strip the current directory so we get the right TestCmd.py module.
sys.path = sys.path[1:]
@@ -131,11 +132,11 @@ class TestCmdTestCase(unittest.TestCase):
run_env.write(t.scriptout_path, textout)
run_env.write(t.scripterr_path, texterr)
- os.chmod(t.script_path, 0644) # XXX UNIX-specific
- os.chmod(t.scriptx_path, 0755) # XXX UNIX-specific
- os.chmod(t.script1_path, 0644) # XXX UNIX-specific
- os.chmod(t.scriptout_path, 0644) # XXX UNIX-specific
- os.chmod(t.scripterr_path, 0644) # XXX UNIX-specific
+ os.chmod(t.script_path, 0o644) # XXX UNIX-specific
+ os.chmod(t.scriptx_path, 0o755) # XXX UNIX-specific
+ os.chmod(t.script1_path, 0o644) # XXX UNIX-specific
+ os.chmod(t.scriptout_path, 0o644) # XXX UNIX-specific
+ os.chmod(t.scripterr_path, 0o644) # XXX UNIX-specific
t.orig_cwd = os.getcwd()
@@ -220,8 +221,8 @@ class cleanup_TestCase(TestCmdTestCase):
test = TestCmd.TestCmd(workdir = '')
wdir = test.workdir
test.write('file2', "Test file #2\n")
- os.chmod(test.workpath('file2'), 0400)
- os.chmod(wdir, 0500)
+ os.chmod(test.workpath('file2'), 0o400)
+ os.chmod(wdir, 0o500)
test.cleanup()
assert not os.path.exists(wdir)
@@ -244,11 +245,12 @@ class cleanup_TestCase(TestCmdTestCase):
def test_atexit(self):
"""Test cleanup() when atexit is used"""
- self.popen_python("""import sys
+ self.popen_python("""from __future__ import print_function
+import sys
sys.path = ['%s'] + sys.path
import atexit
def my_exitfunc():
- print "my_exitfunc()"
+ print("my_exitfunc()")
atexit.register(my_exitfunc)
import TestCmd
result = TestCmd.TestCmd(workdir = '')
@@ -257,10 +259,11 @@ sys.exit(0)
def test_exitfunc(self):
"""Test cleanup() when sys.exitfunc is set"""
- self.popen_python("""import sys
+ self.popen_python("""from __future__ import print_function
+import sys
sys.path = ['%s'] + sys.path
def my_exitfunc():
- print "my_exitfunc()"
+ print("my_exitfunc()")
sys.exitfunc = my_exitfunc
import TestCmd
result = TestCmd.TestCmd(workdir = '')
@@ -286,35 +289,35 @@ class chmod_TestCase(TestCmdTestCase):
test.chmod(['sub', 'file2'], stat.S_IWRITE)
file1_mode = stat.S_IMODE(os.stat(wdir_file1)[stat.ST_MODE])
- assert file1_mode == 0444, '0%o' % file1_mode
+ assert file1_mode == 0o444, '0%o' % file1_mode
file2_mode = stat.S_IMODE(os.stat(wdir_sub_file2)[stat.ST_MODE])
- assert file2_mode == 0666, '0%o' % file2_mode
+ assert file2_mode == 0o666, '0%o' % file2_mode
test.chmod('file1', stat.S_IWRITE)
test.chmod(wdir_sub_file2, stat.S_IREAD)
file1_mode = stat.S_IMODE(os.stat(wdir_file1)[stat.ST_MODE])
- assert file1_mode == 0666, '0%o' % file1_mode
+ assert file1_mode == 0o666, '0%o' % file1_mode
file2_mode = stat.S_IMODE(os.stat(wdir_sub_file2)[stat.ST_MODE])
- assert file2_mode == 0444, '0%o' % file2_mode
+ assert file2_mode == 0o444, '0%o' % file2_mode
else:
- test.chmod(wdir_file1, 0700)
- test.chmod(['sub', 'file2'], 0760)
+ test.chmod(wdir_file1, 0o700)
+ test.chmod(['sub', 'file2'], 0o760)
file1_mode = stat.S_IMODE(os.stat(wdir_file1)[stat.ST_MODE])
- assert file1_mode == 0700, '0%o' % file1_mode
+ assert file1_mode == 0o700, '0%o' % file1_mode
file2_mode = stat.S_IMODE(os.stat(wdir_sub_file2)[stat.ST_MODE])
- assert file2_mode == 0760, '0%o' % file2_mode
+ assert file2_mode == 0o760, '0%o' % file2_mode
- test.chmod('file1', 0765)
- test.chmod(wdir_sub_file2, 0567)
+ test.chmod('file1', 0o765)
+ test.chmod(wdir_sub_file2, 0o567)
file1_mode = stat.S_IMODE(os.stat(wdir_file1)[stat.ST_MODE])
- assert file1_mode == 0765, '0%o' % file1_mode
+ assert file1_mode == 0o765, '0%o' % file1_mode
file2_mode = stat.S_IMODE(os.stat(wdir_sub_file2)[stat.ST_MODE])
- assert file2_mode == 0567, '0%o' % file2_mode
+ assert file2_mode == 0o567, '0%o' % file2_mode
@@ -593,13 +596,14 @@ sys.exit(0)
def test_diff_stderr_not_affecting_diff_stdout(self):
"""Test diff_stderr() not affecting diff_stdout() behavior"""
- self.popen_python(r"""import sys
+ self.popen_python(r"""from __future__ import print_function
+import sys
sys.path = ['%s'] + sys.path
import TestCmd
test = TestCmd.TestCmd(diff_stderr='diff_re')
-print "diff_stderr:"
+print("diff_stderr:")
test.diff_stderr('a\nb.\nc\n', 'a\nbb\nc\n')
-print "diff_stdout:"
+print("diff_stdout:")
test.diff_stdout('a\nb.\nc\n', 'a\nbb\nc\n')
sys.exit(0)
""" % self.orig_cwd,
@@ -699,13 +703,14 @@ sys.exit(0)
def test_diff_stdout_not_affecting_diff_stderr(self):
"""Test diff_stdout() not affecting diff_stderr() behavior"""
- self.popen_python(r"""import sys
+ self.popen_python(r"""from __future__ import print_function
+import sys
sys.path = ['%s'] + sys.path
import TestCmd
test = TestCmd.TestCmd(diff_stdout='diff_re')
-print "diff_stdout:"
+print("diff_stdout:")
test.diff_stdout('a\nb.\nc\n', 'a\nbb\nc\n')
-print "diff_stderr:"
+print("diff_stderr:")
test.diff_stderr('a\nb.\nc\n', 'a\nbb\nc\n')
sys.exit(0)
""" % self.orig_cwd,
@@ -1032,14 +1037,14 @@ class match_exact_TestCase(TestCmdTestCase):
assert test.match_exact("abcde\n", "abcde\n")
assert not test.match_exact(["12345\n", "abcde\n"], ["1[0-9]*5\n", "a.*e\n"])
assert test.match_exact(["12345\n", "abcde\n"], ["12345\n", "abcde\n"])
- assert not test.match_exact(UserList.UserList(["12345\n", "abcde\n"]),
+ assert not test.match_exact(UserList(["12345\n", "abcde\n"]),
["1[0-9]*5\n", "a.*e\n"])
- assert test.match_exact(UserList.UserList(["12345\n", "abcde\n"]),
+ assert test.match_exact(UserList(["12345\n", "abcde\n"]),
["12345\n", "abcde\n"])
assert not test.match_exact(["12345\n", "abcde\n"],
- UserList.UserList(["1[0-9]*5\n", "a.*e\n"]))
+ UserList(["1[0-9]*5\n", "a.*e\n"]))
assert test.match_exact(["12345\n", "abcde\n"],
- UserList.UserList(["12345\n", "abcde\n"]))
+ UserList(["12345\n", "abcde\n"]))
assert not test.match_exact("12345\nabcde\n", "1[0-9]*5\na.*e\n")
assert test.match_exact("12345\nabcde\n", "12345\nabcde\n")
lines = ["vwxyz\n", "67890\n"]
@@ -1098,28 +1103,28 @@ sys.exit(0)
["1.*j\n"])
assert test.match_re_dotall(["12345\n", "abcde\n", "fghij\n"],
["12345\n", "abcde\n", "fghij\n"])
- assert test.match_re_dotall(UserList.UserList(["12345\n",
- "abcde\n",
- "fghij\n"]),
+ assert test.match_re_dotall(UserList(["12345\n",
+ "abcde\n",
+ "fghij\n"]),
["1[0-9]*5\n", "a.*e\n", "f.*j\n"])
- assert test.match_re_dotall(UserList.UserList(["12345\n",
- "abcde\n",
- "fghij\n"]),
+ assert test.match_re_dotall(UserList(["12345\n",
+ "abcde\n",
+ "fghij\n"]),
["1.*j\n"])
- assert test.match_re_dotall(UserList.UserList(["12345\n",
- "abcde\n",
- "fghij\n"]),
+ assert test.match_re_dotall(UserList(["12345\n",
+ "abcde\n",
+ "fghij\n"]),
["12345\n", "abcde\n", "fghij\n"])
assert test.match_re_dotall(["12345\n", "abcde\n", "fghij\n"],
- UserList.UserList(["1[0-9]*5\n",
- "a.*e\n",
- "f.*j\n"]))
+ UserList(["1[0-9]*5\n",
+ "a.*e\n",
+ "f.*j\n"]))
assert test.match_re_dotall(["12345\n", "abcde\n", "fghij\n"],
- UserList.UserList(["1.*j\n"]))
+ UserList(["1.*j\n"]))
assert test.match_re_dotall(["12345\n", "abcde\n", "fghij\n"],
- UserList.UserList(["12345\n",
- "abcde\n",
- "fghij\n"]))
+ UserList(["12345\n",
+ "abcde\n",
+ "fghij\n"]))
assert test.match_re_dotall("12345\nabcde\nfghij\n",
"1[0-9]*5\na.*e\nf.*j\n")
assert test.match_re_dotall("12345\nabcde\nfghij\n", "1.*j\n")
@@ -1176,14 +1181,14 @@ sys.exit(0)
assert test.match_re("abcde\n", "abcde\n")
assert test.match_re(["12345\n", "abcde\n"], ["1[0-9]*5\n", "a.*e\n"])
assert test.match_re(["12345\n", "abcde\n"], ["12345\n", "abcde\n"])
- assert test.match_re(UserList.UserList(["12345\n", "abcde\n"]),
+ assert test.match_re(UserList(["12345\n", "abcde\n"]),
["1[0-9]*5\n", "a.*e\n"])
- assert test.match_re(UserList.UserList(["12345\n", "abcde\n"]),
+ assert test.match_re(UserList(["12345\n", "abcde\n"]),
["12345\n", "abcde\n"])
assert test.match_re(["12345\n", "abcde\n"],
- UserList.UserList(["1[0-9]*5\n", "a.*e\n"]))
+ UserList(["1[0-9]*5\n", "a.*e\n"]))
assert test.match_re(["12345\n", "abcde\n"],
- UserList.UserList(["12345\n", "abcde\n"]))
+ UserList(["12345\n", "abcde\n"]))
assert test.match_re("12345\nabcde\n", "1[0-9]*5\na.*e\n")
assert test.match_re("12345\nabcde\n", "12345\nabcde\n")
lines = ["vwxyz\n", "67890\n"]
@@ -1463,7 +1468,7 @@ class preserve_TestCase(TestCmdTestCase):
def test_preserve(self):
"""Test preserve()"""
def cleanup_test(test, cond=None, stdout=""):
- io = StringIO.StringIO()
+ io = StringIO()
save = sys.stdout
sys.stdout = io
try:
@@ -1603,7 +1608,7 @@ class read_TestCase(TestCmdTestCase):
_file_matches(wdir_foo_file3, test.read(['foo', 'file3']),
"Test\nfile\n#3.\n")
_file_matches(wdir_foo_file3,
- test.read(UserList.UserList(['foo', 'file3'])),
+ test.read(UserList(['foo', 'file3'])),
"Test\nfile\n#3.\n")
_file_matches(wdir_file4, test.read('file4', mode = 'r'),
"Test\nfile\n#4.\n")
@@ -1861,24 +1866,24 @@ class run_verbose_TestCase(TestCmdTestCase):
interpreter = 'python',
workdir = '',
verbose = 1)
-
- sys.stdout = StringIO.StringIO()
- sys.stderr = StringIO.StringIO()
-
+
+ sys.stdout = StringIO()
+ sys.stderr = StringIO()
+
test.run(arguments = ['arg1 arg2'])
o = sys.stdout.getvalue()
assert o == '', o
e = sys.stderr.getvalue()
expect = 'python "%s" "arg1 arg2"\n' % t.script_path
assert expect == e, (expect, e)
-
+
testx = TestCmd.TestCmd(program = t.scriptx,
workdir = '',
verbose = 1)
-
- sys.stdout = StringIO.StringIO()
- sys.stderr = StringIO.StringIO()
-
+
+ sys.stdout = StringIO()
+ sys.stderr = StringIO()
+
testx.run(arguments = ['arg1 arg2'])
expect = '"%s" "arg1 arg2"\n' % t.scriptx_path
o = sys.stdout.getvalue()
@@ -1912,10 +1917,10 @@ class run_verbose_TestCase(TestCmdTestCase):
interpreter = 'python',
workdir = '',
verbose = 2)
-
- sys.stdout = StringIO.StringIO()
- sys.stderr = StringIO.StringIO()
-
+
+ sys.stdout = StringIO()
+ sys.stderr = StringIO()
+
test.run(arguments = ['arg1 arg2'])
line_fmt = "script: %s: %s: ['arg1 arg2']\n"
@@ -1929,14 +1934,14 @@ class run_verbose_TestCase(TestCmdTestCase):
expect = 'python "%s" "arg1 arg2"\n' % t.script_path
e = sys.stderr.getvalue()
assert e == expect, (e, expect)
-
+
testx = TestCmd.TestCmd(program = t.scriptx,
workdir = '',
verbose = 2)
-
- sys.stdout = StringIO.StringIO()
- sys.stderr = StringIO.StringIO()
-
+
+ sys.stdout = StringIO()
+ sys.stderr = StringIO()
+
testx.run(arguments = ['arg1 arg2'])
line_fmt = "scriptx.bat: %s: %s: ['arg1 arg2']\n"
@@ -1957,10 +1962,10 @@ class run_verbose_TestCase(TestCmdTestCase):
interpreter = 'python',
workdir = '',
verbose = 2)
-
- sys.stdout = StringIO.StringIO()
- sys.stderr = StringIO.StringIO()
-
+
+ sys.stdout = StringIO()
+ sys.stderr = StringIO()
+
test.run(arguments = ['arg1 arg2'])
line_fmt = "scriptout: %s: %s: ['arg1 arg2']\n"
@@ -1977,10 +1982,10 @@ class run_verbose_TestCase(TestCmdTestCase):
interpreter = 'python',
workdir = '',
verbose = 3)
-
- sys.stdout = StringIO.StringIO()
- sys.stderr = StringIO.StringIO()
-
+
+ sys.stdout = StringIO()
+ sys.stderr = StringIO()
+
test.run(arguments = ['arg1 arg2'])
line_fmt = "scriptout: %s: %s: ['arg1 arg2']\n"
@@ -2001,10 +2006,10 @@ class run_verbose_TestCase(TestCmdTestCase):
test = TestCmd.TestCmd(program = t.script,
interpreter = 'python',
workdir = '')
-
- sys.stdout = StringIO.StringIO()
- sys.stderr = StringIO.StringIO()
-
+
+ sys.stdout = StringIO()
+ sys.stderr = StringIO()
+
test.run(arguments = ['arg1 arg2'])
line_fmt = "script: %s: %s: ['arg1 arg2']\n"
@@ -2018,13 +2023,13 @@ class run_verbose_TestCase(TestCmdTestCase):
expect = 'python "%s" "arg1 arg2"\n' % t.script_path
e = sys.stderr.getvalue()
assert e == expect, (e, expect)
-
+
testx = TestCmd.TestCmd(program = t.scriptx,
workdir = '')
-
- sys.stdout = StringIO.StringIO()
- sys.stderr = StringIO.StringIO()
-
+
+ sys.stdout = StringIO()
+ sys.stderr = StringIO()
+
testx.run(arguments = ['arg1 arg2'])
line_fmt = "scriptx.bat: %s: %s: ['arg1 arg2']\n"
@@ -2047,24 +2052,24 @@ class run_verbose_TestCase(TestCmdTestCase):
interpreter = 'python',
workdir = '',
verbose = 1)
-
- sys.stdout = StringIO.StringIO()
- sys.stderr = StringIO.StringIO()
-
+
+ sys.stdout = StringIO()
+ sys.stderr = StringIO()
+
test.run(arguments = ['arg1 arg2'])
o = sys.stdout.getvalue()
assert o == '', o
e = sys.stderr.getvalue()
expect = 'python "%s" "arg1 arg2"\n' % t.script_path
assert expect == e, (expect, e)
-
+
testx = TestCmd.TestCmd(program = t.scriptx,
workdir = '',
verbose = 1)
-
- sys.stdout = StringIO.StringIO()
- sys.stderr = StringIO.StringIO()
-
+
+ sys.stdout = StringIO()
+ sys.stderr = StringIO()
+
testx.run(arguments = ['arg1 arg2'])
expect = '"%s" "arg1 arg2"\n' % t.scriptx_path
o = sys.stdout.getvalue()
@@ -2095,18 +2100,19 @@ sys.exit(0)
def test_set_diff_function_stdout(self):
"""Test set_diff_function(): stdout"""
- self.popen_python("""import sys
+ self.popen_python("""from __future__ import print_function
+import sys
sys.path = ['%s'] + sys.path
import TestCmd
test = TestCmd.TestCmd()
-print "diff:"
+print("diff:")
test.diff("a\\n", "a\\n")
-print "diff_stdout:"
+print("diff_stdout:")
test.diff_stdout("a\\n", "a\\n")
test.set_diff_function(stdout='diff_re')
-print "diff:"
+print("diff:")
test.diff(".\\n", "a\\n")
-print "diff_stdout:"
+print("diff_stdout:")
test.diff_stdout(".\\n", "a\\n")
sys.exit(0)
""" % self.orig_cwd,
@@ -2123,18 +2129,19 @@ diff_stdout:
def test_set_diff_function_stderr(self):
"""Test set_diff_function(): stderr """
- self.popen_python("""import sys
+ self.popen_python("""from __future__ import print_function
+import sys
sys.path = ['%s'] + sys.path
import TestCmd
test = TestCmd.TestCmd()
-print "diff:"
+print("diff:")
test.diff("a\\n", "a\\n")
-print "diff_stderr:"
+print("diff_stderr:")
test.diff_stderr("a\\n", "a\\n")
test.set_diff_function(stderr='diff_re')
-print "diff:"
+print("diff:")
test.diff(".\\n", "a\\n")
-print "diff_stderr:"
+print("diff_stderr:")
test.diff_stderr(".\\n", "a\\n")
sys.exit(0)
""" % self.orig_cwd,
@@ -2347,7 +2354,7 @@ while 1:
logfp.close()
""" % t.recv_out_path
t.run_env.write(t.recv_script_path, text)
- os.chmod(t.recv_script_path, 0644) # XXX UNIX-specific
+ os.chmod(t.recv_script_path, 0o644) # XXX UNIX-specific
return t
def test_start(self):
@@ -2695,9 +2702,10 @@ class stdin_TestCase(TestCmdTestCase):
def test_stdin(self):
"""Test stdin()"""
run_env = TestCmd.TestCmd(workdir = '')
- run_env.write('run', """import fileinput
+ run_env.write('run', """from __future__ import print_function
+import fileinput
for line in fileinput.input():
- print 'Y'.join(line[:-1].split('X'))
+ print('Y'.join(line[:-1].split('X')))
""")
run_env.write('input', "X on X this X line X\n")
os.chdir(run_env.workdir)
@@ -2765,11 +2773,11 @@ class subdir_TestCase(TestCmdTestCase):
assert test.subdir('bar') == 1
assert test.subdir(['foo', 'succeed']) == 1
if os.name != "nt":
- os.chmod(test.workpath('foo'), 0500)
+ os.chmod(test.workpath('foo'), 0o500)
assert test.subdir(['foo', 'fail']) == 0
assert test.subdir(['sub', 'dir', 'ectory'], 'sub') == 1
assert test.subdir('one',
- UserList.UserList(['one', 'two']),
+ UserList(['one', 'two']),
['one', 'two', 'three']) == 3
assert os.path.isdir(test.workpath('foo'))
assert os.path.isdir(test.workpath('bar'))
@@ -2962,7 +2970,7 @@ class unlink_TestCase(TestCmdTestCase):
test.unlink(['foo', 'file3a'])
assert not os.path.exists(wdir_foo_file3a)
- test.unlink(UserList.UserList(['foo', 'file3b']))
+ test.unlink(UserList(['foo', 'file3b']))
assert not os.path.exists(wdir_foo_file3b)
test.unlink([test.workdir, 'foo', 'file4'])
@@ -2971,8 +2979,8 @@ class unlink_TestCase(TestCmdTestCase):
# Make it so we can't unlink file5.
# For UNIX, remove write permission from the dir and the file.
# For Windows, open the file.
- os.chmod(test.workdir, 0500)
- os.chmod(wdir_file5, 0400)
+ os.chmod(test.workdir, 0o500)
+ os.chmod(wdir_file5, 0o400)
f = open(wdir_file5, 'r')
try:
@@ -2983,8 +2991,8 @@ class unlink_TestCase(TestCmdTestCase):
except:
raise
finally:
- os.chmod(test.workdir, 0700)
- os.chmod(wdir_file5, 0600)
+ os.chmod(test.workdir, 0o700)
+ os.chmod(wdir_file5, 0o600)
f.close()
@@ -3208,11 +3216,11 @@ class executable_TestCase(TestCmdTestCase):
def make_executable(fname):
st = os.stat(fname)
- os.chmod(fname, stat.S_IMODE(st[stat.ST_MODE]|0100))
+ os.chmod(fname, stat.S_IMODE(st[stat.ST_MODE]|0o100))
def make_non_executable(fname):
st = os.stat(fname)
- os.chmod(fname, stat.S_IMODE(st[stat.ST_MODE]&~0100))
+ os.chmod(fname, stat.S_IMODE(st[stat.ST_MODE]&~0o100))
test.executable(test.workdir, 0)
# XXX skip these tests if euid == 0?
@@ -3282,7 +3290,7 @@ class write_TestCase(TestCmdTestCase):
test.write('file9', "Test file #9.\r\n", mode = 'wb')
if os.name != "nt":
- os.chmod(test.workdir, 0500)
+ os.chmod(test.workdir, 0o500)
try:
test.write('file10', "Test file #10 (should not get created).\n")
except IOError: # expect "Permission denied"
@@ -3326,14 +3334,16 @@ class variables_TestCase(TestCmdTestCase):
'TestCmd',
]
- script = "import TestCmd\n" + \
- '\n'.join([ "print TestCmd.%s\n" % v for v in variables ])
+ script = "from __future__ import print_function\n" + \
+ "import TestCmd\n" + \
+ '\n'.join([ "print(TestCmd.%s\n)" % v for v in variables ])
run_env.run(program=sys.executable, stdin=script)
stderr = run_env.stderr()
assert stderr == "", stderr
- script = "from TestCmd import *\n" + \
- '\n'.join([ "print %s" % v for v in variables ])
+ script = "from __future__ import print_function\n" + \
+ "from TestCmd import *\n" + \
+ '\n'.join([ "print(%s)" % v for v in variables ])
run_env.run(program=sys.executable, stdin=script)
stderr = run_env.stderr()
assert stderr == "", stderr