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# This test is a special case that we expect to run under Python 2, so

# include the necessary compatibility imports:

try: # Python 3

from unittest import mock

except ImportError: # Python 2

import mock

from pythonforandroid.recommendations import PY2_ERROR_TEXT

from pythonforandroid import entrypoints

def test_main_python2():

"""Test that running under Python 2 leads to the build failing, while

running under a suitable version works fine.

Note that this test must be run *using* Python 2 to truly test

that p4a can reach the Python version check before importing some

Python-3-only syntax and crashing.

"""

# Under Python 2, we should get a normal control flow exception

# that is handled properly, not any other type of crash

handle_exception_path = 'pythonforandroid.entrypoints.handle_build_exception'

with mock.patch('sys.version_info') as fake_version_info, \

mock.patch(handle_exception_path) as handle_build_exception: # noqa: E127

fake_version_info.major = 2

fake_version_info.minor = 7

def check_python2_exception(exc):

"""Check that the exception message is Python 2 specific."""

assert exc.message == PY2_ERROR_TEXT

handle_build_exception.side_effect = check_python2_exception

entrypoints.main()

handle_build_exception.assert_called_once()