changed logging to file to be optional

tools/cooja/contiki_tests/RUN_TEST

@@ -1,15 +1,18 @@
 #!/bin/bash
 
-if [ -z "$2" ]; then
-  echo "Usage: $0 <test> <logfile>"
+if [ $# -lt 1 -o $# -gt 2 ]; then
+  echo "Usage: $0 <test> [logfile]"
   exit
 fi
-
 TEST=$1
+LOGFILE=0
+if [ $# -eq 2 ]; then
+  LOGFILE=1
   LOG=$2
+fi
 
 echo ">>>>>>> Starting test: $TEST <<<<<<<<"
-echo -n "[`date '+%F %T'`] $TEST: " >> $LOG
+if [ $LOGFILE -eq 1 ]; then echo -n "[`date '+%F %T'`] $TEST: " >> $LOG; fi
 java -jar ../dist/cooja.jar -nogui -test=$TEST
 if [ -f "COOJA.log" ]; then
   mv COOJA.log $TEST.cooja_log
@@ -20,6 +23,7 @@ if [ -f "$TEST.log" ]; then
   OK=`grep "TEST OK" $TEST.log | wc -l`
 fi
 
+if [ $LOGFILE -eq 1 ]; then
   if [ $OK == 0 ]; then
     echo "FAIL" >> $LOG
     if [ -f "$TEST.info" ]; then
@@ -36,5 +40,11 @@ if [ $OK == 0 ]; then
   else
     echo "OK" >> $LOG
   fi
-
   echo >> $LOG
+fi
+
+if [ $OK == 0 ]; then
+  echo ">>>>>>> Finished test: $TEST FAILED <<<<<<<<"
+else
+  echo ">>>>>>> Finished test: $TEST OK <<<<<<<<"
+fi