def test_TD_COAP_OBS_01(self):
"""
:Identifier: TD_COAP_OBS_01
:Objective: Handle resource observation
:Configuration: CoAP_CFG_01
- Pre-test conditions:
- Client supports Observe option
- Server supports Observe option
- Server offers an observable resource /obs which changes
periodically (e.g. every 5s) which produces confirmable
notifications
- Step 1 stimulus Client is requested to observe resource /obs on
Server
- Step 2 (check (CON)) Client sends a GET request containing Observe
option indicating 0
- Step 3 (check (CON)) Server sends response containing Observe option
- Step 4 (verify (IOP)) Client displays the received information
- Step 5 (check (CON)) Server sends response containing Observe option
indicating increasing values, as resource changes
- Step 6 (verify (IOP)) Client displays the updated information
"""
r = coap.observe(self.server.url + "/obs",
callback=self.callback_TD_COAP_OBS_01)
self.assertin(r.options, options.observe)
def test_TD_COAP_OBS_09(self):
"""
:Identifier: TD_COAP_OBS_09
:Objective: Update of the observed resource
:Configuration: CoAP_CFG_01
:Pre-test conditions:
- Client supports Observe option
- Server supports Observe option
- Server offers an observable resource /obs which changes
periodically (e.g. every 5s) which produces confirmable
notifications
- Step 1 (stimulus) Client is requested to send to the server a
confirmable GET request with observe option for resource /obs
- Step 2 (check) The request sent by clients contains:
- Type = 0 (CON)
- Code = 1 (GET)
- Token value = a value generated by the client
- Observe option = empty
- Step 3 (check) Server sends the response containing:
- Type = 2 (ACK)
- Content-format of the resource /obs
- Token value = same as one found in the step 2
- Observe option with a sequence number
"""
r = coap.observe(self.server.url + "/obs",
callback=self.callback_TD_COAP_OBS_09,
confirmable=True)
self.assertEqual(r.sent.msgType, msgType.con)
self.assertEqual(r.sent.code, codes.GET)
self.assertEqual(r.sent.options)
def test_TD_COAP_OBS_07(self):
"""
:Identifier: TD_COAP_OBS_07
:Objective: Server cleans the observers list on DELETE
:Configuration: CoAP_CFG_01
:Pre-test conditions:
- Client supports Observe option
- Server supports Observe option
- Server offers an observable resource /obs which changes
periodically (e.g. every 5s) which produces confirmable
notifications
- Step 1 (stimulus): Client is requested to send to the server a GET
request with observe option for resource /obs
- Step 2 (check): The request sent by client contains:
- Type = 1 (CON)
- Code = 1 (GET)
- Token value = a value generated by the client
- Observe option = empty
- Step 3 (check): Server sends a notification containing:
- Type = 1 (CON)
- Content-format = the same for all notifications
- Token value = same as one found in the step 2
- Observe option indicating increasing values
- Step 4 (check): Client displays the received information
- Step 5 (check): Client sends an ACK
- Step 6 (stimulus): Client is requested to send to the server a
DELETE request with observe option for resource /obs
- Step 7 (check): The request sent by client contains:
- Type = 1(NON)
- Code = 4(DELETE)
- Step 8 (check): Server sends response containing:
- Type = 1(CON)
- Code = 66(2.02 Deleted)
- Step 9 (check): Server sends 4.04 (Not Found) response to the
observer registered for /obs
- Step 10 (verify): Server does not send further responses
Notes:
(1) Steps 3-5 are in a loop.
(2) Step 6-10 are asynchronous to the loop.
(3) Steps 8 and 9 may occur out-of-order
"""
r = coap.observe(self.server.url + "/obs")
self.assertEqual(r.msgType, msgType.con)
self.assertEqual(r.code, codes.GET)
def test_TD_COAP_OBS_04(self):
"""
:Identifier: TD_COAP_OBS_04
:Objective: Server detection of deregistration (client OFF)
:Configuration: CoAP_CFG_01
:Pre-test conditions:
- Client supports Observe option
- Server supports Observe option
- Server offers an observable resource /obs which changes
periodically (e.g. every 5s) which produces confirmable
notifications
- Client is observing /obs on Server
- Step 1 stimulus Client is switched off
- Step 2 (check (CON)) Server’s confirmable responses are not
acknowledged
- Step 3 (verify (IOP)) After some delay, Server does not send further
responses
"""
r = coap.observe(self.server.url + "/obs")