Add second test.

tests/test_nc2.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+if nc 2>&1 | grep -q apple
+then
+    exit 0
+fi
+
+PROG="$1"
+
+TEST=testoutput
+
+rm -rf $TEST
+mkdir -p $TEST
+
+TESTNAME="Test using netcat to feed hex stream using tcp."
+TESTRESULT="ERROR"
+
+PORT=$(( $RANDOM % 10000 + 30000 ))
+
+rm -f $TEST/response
+$PROG --silent --oneshot --exitafter=5s --format=fields --selectfields=total_m3 "hex:CMD(nc -lk $PORT)"  MyWater iperl 33225544 NOKEY >> $TEST/response 2>&1 &
+
+sleep 0.5
+
+echo "1844AE4C4455223368077A55000000041389E20100023B0000" | nc -q1 localhost $PORT
+
+GOT=$(cat $TEST/response | tr -d '\n')
+EXPECTED="123.529"
+
+if [ "$GOT" = "$EXPECTED" ]
+then
+    echo "OK: $TESTNAME"
+    TESTRESULT="OK"
+else
+    echo "ERROR: GOT $GOT but expected $EXPECTED"
+fi
+
+if [ "$TESTRESULT" = "ERROR" ]; then echo ERROR: $TESTNAME;  exit 1; fi