def test_setup_test_runs_terminates_if_xvfb_proc_fails(self):
def run_command_fake(args):
if args[0] == 'xdpyinfo':
return 1
return 0
host = MockSystemHost(os_name=self.os_name, os_version=self.os_version)
port = self.make_port(host=host)
# Xvfb is started via Executive.popen, which returns an object for the
# process. Here we set up a fake process object that acts as if it has
# exited with return code 1 immediately.
proc = MockProcess(stdout='', stderr='', returncode=3)
port.host.executive = MockExecutive(run_command_fn=run_command_fake,
proc=proc)
self.set_logging_level(logging.DEBUG)
self.assertEqual(port.setup_test_run(), SYS_DEPS_EXIT_STATUS)
self.assertEqual(port.host.executive.calls, [[
'xdpyinfo', '-display', ':99'
], ['Xvfb', ':99', '-screen', '0', '1280x800x24', '-ac', '-dpi', '96']
])
self.assertLog([
'DEBUG: Starting Xvfb with display ":99".\n',
'CRITICAL: Failed to start Xvfb on display ":99" (xvfb retcode: 3).\n'
])
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._spawn_process = lambda: 4
server._process = MockProcess()
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, 4)
self.assertIsNone(self.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'
])