adding unit test for vx_malloc

ci/blackbox.sh

@@ -144,16 +144,20 @@ if [ $DEBUG -eq 1 ]
 then    
     if [ $SCOPE -eq 1 ]
     then
+        echo "running: DEBUG=$DEBUG_LEVEL SCOPE=1 CONFIGS="$CONFIGS" make -C $DRIVER_PATH"
         DEBUG=$DEBUG_LEVEL SCOPE=1 CONFIGS="$CONFIGS" make -C $DRIVER_PATH
     else
+        echo "running: DEBUG=$DEBUG_LEVEL CONFIGS="$CONFIGS" make -C $DRIVER_PATH"
         DEBUG=$DEBUG_LEVEL CONFIGS="$CONFIGS" make -C $DRIVER_PATH
     fi    
     
     if [ $HAS_ARGS -eq 1 ]
     then
+        echo "running: OPTS=$ARGS make -C $APP_PATH run-$DRIVER > run.log 2>&1"
         OPTS=$ARGS make -C $APP_PATH run-$DRIVER > run.log 2>&1
         status=$?
     else
+        echo "running: make -C $APP_PATH run-$DRIVER > run.log 2>&1"
         make -C $APP_PATH run-$DRIVER > run.log 2>&1
         status=$?
     fi
@@ -163,18 +167,24 @@ then
         mv -f $APP_PATH/trace.vcd .
     fi
 else
+    echo "driver initialization..."
     if [ $SCOPE -eq 1 ]
     then
+        echo "running: SCOPE=1 CONFIGS="$CONFIGS" make -C $DRIVER_PATH"
         SCOPE=1 CONFIGS="$CONFIGS" make -C $DRIVER_PATH
     else
+        echo "running: CONFIGS="$CONFIGS" make -C $DRIVER_PATH"
         CONFIGS="$CONFIGS" make -C $DRIVER_PATH
     fi
     
+    echo "running application..."
     if [ $HAS_ARGS -eq 1 ]
     then
+        echo "running: OPTS=$ARGS make -C $APP_PATH run-$DRIVER"
         OPTS=$ARGS make -C $APP_PATH run-$DRIVER
         status=$?
     else
+        echo "running: make -C $APP_PATH run-$DRIVER"
         make -C $APP_PATH run-$DRIVER
         status=$?
     fi

ci/regression.sh

@@ -6,6 +6,11 @@ set -e
 # ensure build
 make -s
 
+unittest() 
+{
+make -C tests/unittest run
+}
+
 coverage() 
 {
 echo "begin coverage tests..."
@@ -156,11 +161,13 @@ echo "stress1 tests done!"
 
 usage()
 {
-    echo "usage: regression [-coverage] [-tex] [-cluster] [-debug] [-config] [-stress[#n]] [-all] [-h|--help]"
+    echo "usage: regression [-unittest] [-coverage] [-tex] [-cluster] [-debug] [-config] [-stress[#n]] [-all] [-h|--help]"
 }
 
 while [ "$1" != "" ]; do
     case $1 in
+        -unittest ) unittest
+                ;;
         -coverage ) coverage
                 ;;
         -tex ) tex

ci/travis_run.py

@@ -4,19 +4,22 @@ import time
 import threading
 import subprocess
 
-PingInterval = 15
+# This script executes a long-running command while outputing "still running ..." periodically
+# to notify Travis build system that the program has not hanged
 
-def PingCallback(stop):
+PING_INTERVAL=15
+
+def monitor(stop):
     wait_time = 0    
     while True:                   
-        time.sleep(PingInterval)     
-        wait_time += PingInterval   
+        time.sleep(PING_INTERVAL)     
+        wait_time += PING_INTERVAL   
         print(" + still running (" + str(wait_time) + "s) ...")
         sys.stdout.flush()        
         if stop(): 
             break
 
-def run_command(command):
+def execute(command):
     process = subprocess.Popen(command, stdout=subprocess.PIPE)
     while True:
         output = process.stdout.readline()
@@ -24,18 +27,23 @@ def run_command(command):
             break
         if output:
             print output.strip()
+            sys.stdout.flush()
     return process.returncode
 
 def main(argv):
 
-    stop_threads = False
-    t = threading.Thread(target = PingCallback, args =(lambda : stop_threads, ))
+    # start monitoring thread
+    stop_monitor = False
+    t = threading.Thread(target = monitor, args =(lambda : stop_monitor, ))
     t.start()
 
-    exitcode = run_command(argv)
+    # execute command
+    exitcode = execute(argv)    
     print(" + exitcode="+str(exitcode))
-
-    stop_threads = True
+    sys.stdout.flush()
+    
+    # terminate monitoring thread
+    stop_monitor = True
     t.join()
 
     sys.exit(exitcode)