Add UDP test script

scripts/udp_test.py

@@ -0,0 +1,60 @@
+#!/usr/bin/env python
+"""
+UDP echo test
+"""
+
+import argparse
+import socket
+
+def main():
+    parser = argparse.ArgumentParser(description=__doc__.strip())
+    parser.add_argument('host', help="Host")
+    parser.add_argument('port', help="UDP port", nargs='?', type=int, default=1234)
+    parser.add_argument('-n', help="Number of packets", type=int, default=1000)
+
+    args = parser.parse_args()
+    
+    host = args.host
+    port = args.port
+    n = args.n
+    
+    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    sock.settimeout(0)
+    
+    sent = 0
+    recv = 0
+    
+    data = b'testing'*100
+    
+    print(f"Sending {n} UDP packets to {host} on {port}...")
+    
+    while sent < n:
+        try:
+            sock.sendto(data, (host, port))
+            sent += 1
+        except BlockingIOError:
+            pass
+        
+        try:
+            ret = sock.recvfrom(1024)
+            recv += 1
+        except BlockingIOError:
+            pass
+
+    sock.settimeout(1)
+    
+    while True:
+    
+        try:
+            ret = sock.recvfrom(1024)
+            recv += 1
+        except socket.timeout:
+            break
+    
+    print(f"Sent {sent} packets")
+    print(f"Received {recv} packets ({recv/sent*100}%)")
+    print(f"Missed {sent-recv} packets ({(sent-recv)/sent*100}%)")
+
+
+if __name__ == "__main__":
+    main()