[p2p tests] test other peers connect to us

if we have neither seeds nor the addrbook

test/p2p/pex/test.sh

@@ -18,7 +18,7 @@ docker stop "local_testnet_$ID"
 docker cp "local_testnet_$ID:/go/src/github.com/tendermint/tendermint/test/p2p/data/mach1/core/addrbook.json" "/tmp/addrbook.json"
 docker rm -vf "local_testnet_$ID"
 
-# NOTE that we do not provide seeds this time
+# NOTE that we do not provide seeds
 bash test/p2p/peer.sh "$DOCKER_IMAGE" "$NETWORK_NAME" "$ID" "$PROXY_APP" "--pex"
 docker cp "/tmp/addrbook.json" "local_testnet_$ID:/go/src/github.com/tendermint/tendermint/test/p2p/data/mach1/core/addrbook.json"
 echo "with the following addrbook:"
@@ -28,6 +28,20 @@ echo ""
 # if the client runs forever, it means addrbook wasn't saved or was empty
 bash test/p2p/client.sh "$DOCKER_IMAGE" "$NETWORK_NAME" "pex_$ID" "test/p2p/pex/check_peer.sh $ID $N"
 
+echo "----------------------------------------------------------------------"
+echo "Testing other peers connect to us if we have neither seeds nor the addrbook"
+echo "(assuming peers are started with pex enabled)"
+
+echo "1. restart peer $ID"
+docker stop "local_testnet_$ID"
+docker rm -vf "local_testnet_$ID"
+
+# NOTE that we do not provide seeds
+bash test/p2p/peer.sh "$DOCKER_IMAGE" "$NETWORK_NAME" "$ID" "$PROXY_APP" "--pex"
+
+# if the client runs forever, it means other peers have removed us from their books (which should not happen)
+bash test/p2p/client.sh "$DOCKER_IMAGE" "$NETWORK_NAME" "pex_$ID" "test/p2p/pex/check_peer.sh $ID $N"
+
 echo ""
 echo "PASS"
 echo ""