# Tests invocation of the interpreter with various command line arguments | |
# All tests are executed with environment variables ignored | |
# See test_cmd_line_script.py for testing of script execution | |
import test.test_support, unittest | |
import sys | |
from test.script_helper import spawn_python, kill_python, python_exit_code | |
class CmdLineTest(unittest.TestCase): | |
def start_python(self, *args): | |
p = spawn_python(*args) | |
return kill_python(p) | |
def exit_code(self, *args): | |
return python_exit_code(*args) | |
def test_directories(self): | |
self.assertNotEqual(self.exit_code('.'), 0) | |
self.assertNotEqual(self.exit_code('< .'), 0) | |
def verify_valid_flag(self, cmd_line): | |
data = self.start_python(cmd_line) | |
self.assertTrue(data == '' or data.endswith('\n')) | |
self.assertNotIn('Traceback', data) | |
def test_optimize(self): | |
self.verify_valid_flag('-O') | |
self.verify_valid_flag('-OO') | |
def test_q(self): | |
self.verify_valid_flag('-Qold') | |
self.verify_valid_flag('-Qnew') | |
self.verify_valid_flag('-Qwarn') | |
self.verify_valid_flag('-Qwarnall') | |
def test_site_flag(self): | |
self.verify_valid_flag('-S') | |
def test_usage(self): | |
self.assertIn('usage', self.start_python('-h')) | |
def test_version(self): | |
version = 'Python %d.%d' % sys.version_info[:2] | |
self.assertTrue(self.start_python('-V').startswith(version)) | |
def test_run_module(self): | |
# Test expected operation of the '-m' switch | |
# Switch needs an argument | |
self.assertNotEqual(self.exit_code('-m'), 0) | |
# Check we get an error for a nonexistent module | |
self.assertNotEqual( | |
self.exit_code('-m', 'fnord43520xyz'), | |
0) | |
# Check the runpy module also gives an error for | |
# a nonexistent module | |
self.assertNotEqual( | |
self.exit_code('-m', 'runpy', 'fnord43520xyz'), | |
0) | |
# All good if module is located and run successfully | |
self.assertEqual( | |
self.exit_code('-m', 'timeit', '-n', '1'), | |
0) | |
def test_run_module_bug1764407(self): | |
# -m and -i need to play well together | |
# Runs the timeit module and checks the __main__ | |
# namespace has been populated appropriately | |
p = spawn_python('-i', '-m', 'timeit', '-n', '1') | |
p.stdin.write('Timer\n') | |
p.stdin.write('exit()\n') | |
data = kill_python(p) | |
self.assertTrue(data.startswith('1 loop')) | |
self.assertIn('__main__.Timer', data) | |
def test_run_code(self): | |
# Test expected operation of the '-c' switch | |
# Switch needs an argument | |
self.assertNotEqual(self.exit_code('-c'), 0) | |
# Check we get an error for an uncaught exception | |
self.assertNotEqual( | |
self.exit_code('-c', 'raise Exception'), | |
0) | |
# All good if execution is successful | |
self.assertEqual( | |
self.exit_code('-c', 'pass'), | |
0) | |
def test_main(): | |
test.test_support.run_unittest(CmdLineTest) | |
test.test_support.reap_children() | |
if __name__ == "__main__": | |
test_main() |