def test_start_with_unkillable_zombie_process(self):
# Allow asserting about debug logs.
self.set_logging_level(logging.DEBUG)
self.host.filesystem.write_text_file('/log_file_dir/access_log', 'foo')
self.host.filesystem.write_text_file('/log_file_dir/error_log', 'foo')
self.host.filesystem.write_text_file('/tmp/pidfile', '7')
server = WPTServe(self.port, '/log_file_dir')
server._pid_file = '/tmp/pidfile'
server._is_server_running_on_all_ports = lambda: True
# Simulate a process that never gets killed.
self.host.executive.check_running_pid = lambda _: True
server.start()
self.assertEqual(server._pid, 42)
self.assertEqual(self.host.filesystem.files[server._pid_file], '42')
# In this case, we'll try to kill the process repeatedly,
# then give up and just try to start a new process anyway.
logs = self.logMessages()
self.assertEqual(len(logs), 44)
self.assertEqual(logs[:2], [
'DEBUG: stale wptserve pid file, pid 7\n',
'DEBUG: pid 7 is running, killing it\n'
])
self.assertTrue(logs[-2].startswith('DEBUG: Starting wptserve server'))
self.assertEqual(logs[-1],
'DEBUG: wptserve successfully started (pid = 42)\n')
def test_start_with_stale_pid(self):
# Allow asserting about debug logs.
self.set_logging_level(logging.DEBUG)
self.host.filesystem.write_text_file('/log_file_dir/access_log', 'foo')
self.host.filesystem.write_text_file('/log_file_dir/error_log', 'foo')
self.host.filesystem.write_text_file('/tmp/pidfile', '7')
server = WPTServe(self.port, '/log_file_dir')
server._pid_file = '/tmp/pidfile'
server._is_server_running_on_all_ports = lambda: True
server.start()
# PID file should be overwritten (MockProcess.pid == 42)
self.assertEqual(server._pid, 42)
self.assertEqual(self.host.filesystem.files[server._pid_file], '42')
# Config file should exist.
json.loads(self.port._filesystem.read_text_file(server._config_file))
logs = self.logMessages()
self.assertEqual(len(logs), 5)
self.assertEqual(logs[:2], [
'DEBUG: stale wptserve pid file, pid 7\n',
'DEBUG: pid 7 is not running\n',
])
self.assertTrue(logs[-2].startswith('DEBUG: Starting wptserve server'))
self.assertEqual(logs[-1],
'DEBUG: wptserve successfully started (pid = 42)\n')
def test_start_with_unkillable_zombie_process(self):
# Allow asserting about debug logs.
self.set_logging_level(logging.DEBUG)
host = MockHost()
test_port = test.TestPort(host)
host.filesystem.write_text_file('/log_file_dir/access_log', 'foo')
host.filesystem.write_text_file('/log_file_dir/error_log', 'foo')
host.filesystem.write_text_file('/tmp/pidfile', '7')
server = WPTServe(test_port, '/log_file_dir')
server._pid_file = '/tmp/pidfile'
server._spawn_process = lambda: 4
server._is_server_running_on_all_ports = lambda: True
# Simulate a process that never gets killed.
host.executive.check_running_pid = lambda _: True
server.start()
self.assertEqual(server._pid, 4)
self.assertIsNone(host.filesystem.files[server._pid_file])
# In this case, we'll try to kill the process repeatedly,
# then give up and just try to start a new process anyway.
logs = self.logMessages()
self.assertEqual(len(logs), 43)
self.assertEqual(logs[:2], [
'DEBUG: stale wptserve pid file, pid 7\n',
'DEBUG: pid 7 is running, killing it\n'
])
self.assertEqual(logs[-2:], [
'DEBUG: all ports are available\n',
'DEBUG: wptserve successfully started (pid = 4)\n'
])