/usr/share/ofono/scripts/test-push-notification is in ofono-scripts 1.21-1ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52  | #!/usr/bin/python3
from gi.repository import GLib
import sys
import dbus
import dbus.service
import dbus.mainloop.glib
class PushNotificationAgent(dbus.service.Object):
	@dbus.service.method("org.ofono.PushNotificationAgent",
					in_signature="", out_signature="")
	def Release(self):
		print("Release")
		mainloop.quit()
	@dbus.service.method("org.ofono.PushNotificationAgent",
				in_signature="aya{sv}", out_signature="")
	def ReceiveNotification(self, data, props):
		for key in props.keys():
			print("Key: %s, Value: %s" % (key, props[key]))
		print("Received notification of size: %d" % len(data))
if __name__ == '__main__':
	dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
	bus = dbus.SystemBus()
	manager = dbus.Interface(bus.get_object("org.ofono", "/"),
							"org.ofono.Manager")
	modems = manager.GetModems()
	for path, properties in modems:
		if "org.ofono.PushNotification" not in properties["Interfaces"]:
			continue
		pn = dbus.Interface(bus.get_object('org.ofono', path),
					'org.ofono.PushNotification')
	path = "/test/agent"
	agent = PushNotificationAgent(bus, path)
	pn.RegisterAgent(path)
	print("Agent registered")
	mainloop = GLib.MainLoop()
	try:
		mainloop.run()
	except KeyboardInterrupt:
		pn.UnregisterAgent(path)
		mainloop.run()
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