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145 lines
4.7 KiB
Python
145 lines
4.7 KiB
Python
# Tests command line execution of scripts
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from __future__ import with_statement
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import unittest
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import os
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import os.path
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import sys
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import test
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import tempfile
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import subprocess
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import py_compile
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import contextlib
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import shutil
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import zipfile
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verbose = test.test_support.verbose
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# XXX ncoghlan: Should we consider moving these to test_support?
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from test_cmd_line import _spawn_python, _kill_python
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def _run_python(*args):
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if __debug__:
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p = _spawn_python(*args)
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else:
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p = _spawn_python('-O', *args)
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stdout_data = _kill_python(p)
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return p.wait(), stdout_data
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@contextlib.contextmanager
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def temp_dir():
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dirname = tempfile.mkdtemp()
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try:
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yield dirname
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finally:
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shutil.rmtree(dirname)
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test_source = ("""\
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# Script may be run with optimisation enabled, so don't rely on assert
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# statements being executed
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def assertEqual(lhs, rhs):
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if lhs != rhs:
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raise AssertionError("%r != %r" % (lhs, rhs))
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def assertIdentical(lhs, rhs):
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if lhs is not rhs:
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raise AssertionError("%r is not %r" % (lhs, rhs))
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# Check basic code execution
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result = ['Top level assignment']
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def f():
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result.append('Lower level reference')
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f()
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assertEqual(result, ['Top level assignment', 'Lower level reference'])
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# Check population of magic variables
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assertEqual(__name__, '__main__')
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print '__file__==%r' % __file__
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# Check the sys module
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import sys
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assertIdentical(globals(), sys.modules[__name__].__dict__)
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print 'sys.argv[0]==%r' % sys.argv[0]
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""")
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def _make_test_script(script_dir, script_basename):
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script_filename = script_basename+os.extsep+"py"
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script_name = os.path.join(script_dir, script_filename)
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script_file = open(script_name, "w")
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script_file.write(test_source)
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script_file.close()
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return script_name
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def _compile_test_script(script_name):
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py_compile.compile(script_name, doraise=True)
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if __debug__:
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compiled_name = script_name + 'c'
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else:
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compiled_name = script_name + 'o'
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return compiled_name
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def _make_test_zip(zip_dir, zip_basename, script_name):
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zip_filename = zip_basename+os.extsep+"zip"
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zip_name = os.path.join(zip_dir, zip_filename)
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zip_file = zipfile.ZipFile(zip_name, 'w')
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zip_file.write(script_name, os.path.basename(script_name))
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zip_file.close()
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# if verbose:
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# zip_file = zipfile.ZipFile(zip_name, 'r')
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# print "Contents of %r:" % zip_name
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# zip_file.printdir()
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# zip_file.close()
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return zip_name
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class CmdLineTest(unittest.TestCase):
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def _check_script(self, script_name, expected_file, expected_argv0):
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exit_code, data = _run_python(script_name)
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# if verbose:
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# print "Output from test script %r:" % script_name
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# print data
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self.assertEqual(exit_code, 0)
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printed_file = '__file__==%r' % expected_file
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printed_argv0 = 'sys.argv[0]==%r' % expected_argv0
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self.assert_(printed_file in data)
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self.assert_(printed_argv0 in data)
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def test_basic_script(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, "script")
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self._check_script(script_name, script_name, script_name)
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def test_script_compiled(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, "script")
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compiled_name = _compile_test_script(script_name)
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os.remove(script_name)
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self._check_script(compiled_name, compiled_name, compiled_name)
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def test_directory(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, "__main__")
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self._check_script(script_dir, script_name, script_dir)
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def test_directory_compiled(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, "__main__")
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compiled_name = _compile_test_script(script_name)
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os.remove(script_name)
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self._check_script(script_dir, compiled_name, script_dir)
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def test_zipfile(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, "__main__")
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zip_name = _make_test_zip(script_dir, "test_zip", script_name)
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self._check_script(zip_name, None, zip_name)
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def test_zipfile_compiled(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, "__main__")
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compiled_name = _compile_test_script(script_name)
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zip_name = _make_test_zip(script_dir, "test_zip", compiled_name)
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self._check_script(zip_name, None, zip_name)
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def test_main():
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test.test_support.run_unittest(CmdLineTest)
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test.test_support.reap_children()
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if __name__ == "__main__":
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test_main()
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