22  *   Tests both the friend and the low power role in various scenarios.
93 /* Friend test functions */
95 /** Initialize as a friend and wait for the friendship to be established.
110 /** Initialize as a friend, and wait for multiple friendships to be established
139 /** As a friend, send messages to the LPN.
157 	/* Send unsegmented message from friend to LPN: */  in test_friend_msg()
175 	 * This tests the friend role's re-encryption mechanism for the second  in test_friend_msg()
198 	/* - 2 for each SegAck (SegAcks are sent faster than Friend Poll messages);  in test_friend_msg()
206 /** As a friend, overflow the message queue for the LPN with own packets.
238 		      "Friend never polled");  in test_friend_overflow()
240 	/* LPN verifies that no more messages are in Friend Queue. */  in test_friend_overflow()
245 	/* Make room in the Friend Queue for only one unsegmented message. */  in test_friend_overflow()
256 		      "Friend never polled");  in test_friend_overflow()
258 	/* LPN verifies that there are no more messages in the Friend Queue. */  in test_friend_overflow()
263 	/* Make space in the Friend Queue for only 2 unsegmented messages so the next unsgemented  in test_friend_overflow()
276 	/* This message should fit in Friend Queue as well. */  in test_friend_overflow()
281 		      "Friend never polled");  in test_friend_overflow()
341 /* Friend no-establish test functions */
343 /** Initialize as a friend and no friendships to be established.
389 	/* One poll per message + Friend Update with md == 0 */  in test_friend_va_collision()
399 	/* Friend will send both messages as the virtual address is the same, but LPN shall  in test_friend_va_collision()
406 	/* One poll per message + Friend Update with md == 0 */  in test_friend_va_collision()
418 	/* Friend shall not send the messages to LPN because it is not subscribed to any virtual  in test_friend_va_collision()
425 	/* Shall be only one Friend Poll as the Friend Queue is empty. */  in test_friend_va_collision()
447 	 * when Friend Request from several devices collide in emulated radio channel.  in test_lpn_est()
448 	 * This shift of start moment helps to avoid Friend Request collisions.  in test_lpn_est()
465 /** As an LPN, exchange messages with the friend node.
468  *  messages to and from the connected friend node.
481 	/* Give friend time to prepare the message */  in test_lpn_msg_frnd()
489 	/* Give friend time to prepare the message */  in test_lpn_msg_frnd()
497 	/* Give friend time to prepare the messages */  in test_lpn_msg_frnd()
511 	/* Send an unsegmented message to the friend.  in test_lpn_msg_frnd()
515 		      "Send to friend failed");  in test_lpn_msg_frnd()
519 	/* Send a segmented message to the friend. Should trigger a poll for the  in test_lpn_msg_frnd()
523 		      "Send to friend failed");  in test_lpn_msg_frnd()
561 	/* Send an unsegmented message with friend credentials to a third mesh  in test_lpn_msg_mesh()
562 	 * node. The friend shall relay it.  in test_lpn_msg_mesh()
565 	test_model->pub->cred = true; /* Use friend credentials */  in test_lpn_msg_mesh()
575 /** As an LPN, establish and terminate a friendship with the same friend
625 /** Receive packets from a friend that overflowed its queue. Verify that the
661 		 * the friend, so the first message should have seq=2:  in test_lpn_overflow()
668 	/* Not expecting any more messages from friend */  in test_lpn_overflow()
682 	exp_seq += 2; /* Skipping the first message in Friend Queue. */  in test_lpn_overflow()
696 	/* Not expecting any more messages from friend */  in test_lpn_overflow()
707 	exp_seq += 2; /* Skipping the first message in Friend Queue. */  in test_lpn_overflow()
727 	/* Not expecting any more messages from friend */  in test_lpn_overflow()
738  *  and friend. Then, add a second group address (while the friendship is
801 	/* From friend */  in test_lpn_group()
818 	/* Add a new group addr, then receive on it to ensure that the friend  in test_lpn_group()
831 	/* From friend on second group address */  in test_lpn_group()
843  *  loopback mechanism, and ignored by friend.
887 	/* Loopback on group address, should not come back from the friend */  in test_lpn_loopback()
891 	/* Loopback on virtual address, should not come back from the friend */  in test_lpn_loopback()
901 	/* Loopback on virtual address, should not come back from the friend */  in test_lpn_loopback()
907 	/* Poll the friend and make sure we don't receive any messages: */  in test_lpn_loopback()
919 /** Without engaging in a friendship, communicate with an LPN through a friend
930 	/* When this device and a friend device receive segments from LPN both start  in test_other_msg()
931 	 * sending data. This device sends transport ack. Friend relays LPN's segment.  in test_other_msg()
932 	 * As a consequence of this, the Friend loses transport ack, and the segmented  in test_other_msg()
959 	/* Send a segmented message to the friend. */  in test_other_msg()
964 	 * friend credentials.  in test_other_msg()
1028 						       K_MSEC(1000)), "Friend never polled");  in test_lpn_term_cb_check()
1039  * to Friend when LPN is subscribed to 2 virtual addresses with collision.
1072 	LOG_INF("Step 1: Waiting for msgs from Friend");  in test_lpn_va_collision()
1074 	/* Let Friend prepare messages and the poll them. */  in test_lpn_va_collision()
1092 	/* Remove the first virtual address from subscription and poll messages from Friend. This  in test_lpn_va_collision()
1093 	 * call shall not generate Friend Subscription List Remove message because LPN is still  in test_lpn_va_collision()
1105 	LOG_INF("Step 2: Waiting for msgs from Friend");  in test_lpn_va_collision()
1118 	/* Check that there are no more messages from Friend. */  in test_lpn_va_collision()
1141 	LOG_INF("Step 3: Waiting for msgs from Friend");  in test_lpn_va_collision()
1143 	/* As now there shall be no virtual addresses in the subscription list, Friend Queue shall  in test_lpn_va_collision()
1168 	TEST_CASE(friend, est,              "Friend: establish friendship"),
1169 	TEST_CASE(friend, est_multi,        "Friend: establish multiple friendships"),
1170 	TEST_CASE(friend, msg,              "Friend: message exchange"),
1171 	TEST_CASE(friend, overflow,         "Friend: message queue overflow"),
1172 	TEST_CASE(friend, group,            "Friend: send to group addrs"),
1173 	TEST_CASE(friend, no_est,           "Friend: do not establish friendship"),
1174 	TEST_CASE(friend, va_collision,     "Friend: send to virtual addrs with collision"),
1177 	TEST_CASE(lpn,    msg_frnd,         "LPN: message exchange with friend"),