Don't use wait in p2p sharness test

License: MIT
Signed-off-by: Łukasz Magiera <magik6k@gmail.com>

test/sharness/t0180-p2p.sh

@@ -40,21 +40,26 @@ test_expect_success 'start p2p listener' '
 '
 
 test_expect_success 'Test server to client communications' '
-  ma-pipe-unidir --listen send /ip4/127.0.0.1/tcp/10101 < test0.bin &
-  SERVER_PID=$!
+  ma-pipe-unidir --listen --pidFile=listener.pid send /ip4/127.0.0.1/tcp/10101 < test0.bin &
+
+  go-sleep 500ms &&
+  kill -0 $(cat listener.pid) &&
 
   ipfsi 1 p2p stream dial $PEERID_0 p2p-test /ip4/127.0.0.1/tcp/10102 2>&1 > dialer-stdouterr.log &&
   ma-pipe-unidir recv /ip4/127.0.0.1/tcp/10102 > client.out &&
-  wait $SERVER_PID
+  test ! -f listener.pid
 '
 
 test_expect_success 'Test client to server communications' '
-  ma-pipe-unidir --listen recv /ip4/127.0.0.1/tcp/10101 > server.out &
-  SERVER_PID=$!
+  ma-pipe-unidir --listen --pidFile=listener.pid recv /ip4/127.0.0.1/tcp/10101 > server.out &
+
+  go-sleep 500ms &&
+  kill -0 $(cat listener.pid) &&
 
   ipfsi 1 p2p stream dial $PEERID_0 p2p-test /ip4/127.0.0.1/tcp/10102 2>&1 > dialer-stdouterr.log &&
-  ma-pipe-unidir send /ip4/127.0.0.1/tcp/10102 < test1.bin
-  wait $SERVER_PID
+  ma-pipe-unidir send /ip4/127.0.0.1/tcp/10102 < test1.bin &&
+  go-sleep 250ms &&
+  test ! -f listener.pid
 '
 
 test_expect_success 'server to client output looks good' '