Index: dialin/common/prs_defs.py
===================================================================
diff -u -rf33ee24b00b5a33c730ed539c072199a56c1c78f -r202904412c10730523596c96a2f5d885e5d019d0
--- dialin/common/prs_defs.py	(.../prs_defs.py)	(revision f33ee24b00b5a33c730ed539c072199a56c1c78f)
+++ dialin/common/prs_defs.py	(.../prs_defs.py)	(revision 202904412c10730523596c96a2f5d885e5d019d0)
@@ -34,3 +34,8 @@
     VENOUS_PRESSURE_HIGH_DEF = +400
     VENOUS_PRESSURE_HIGH_MAX = +600
 
+class AlarmPriority:
+    ALARM_HIGH = 3
+    ALARM_MED = 2
+    ALARM_LOW = 1
+    ALARM_NONE = 0
Index: dialin/squish/unittests.py
===================================================================
diff -u -r91dc90bd009bdbf5621dcaa1bc12ab3d691673f7 -r202904412c10730523596c96a2f5d885e5d019d0
--- dialin/squish/unittests.py	(.../unittests.py)	(revision 91dc90bd009bdbf5621dcaa1bc12ab3d691673f7)
+++ dialin/squish/unittests.py	(.../unittests.py)	(revision 202904412c10730523596c96a2f5d885e5d019d0)
@@ -16,9 +16,12 @@
 
 import test
 import sys
-from subprocess import check_output
 
 from dialin.squish import crc
+from dialin.squish.utils import check_can0
+
+from can import util
+from can.interfaces.socketcan import utils
 MICRO = [8, 9]
 
 
@@ -66,16 +69,8 @@
 
 def test_can0():
     """
-    check if the can0 bus driver presents
+    tests if the can0 bus driver presents
     :return:
     """
-    canid = "can0"
-    ipa = "ip a"
-    ipa = check_output(ipa, shell=True)
-    loc = str(ipa).find(canid)
-    fnd = loc >= 0
-    if (fnd):
-        msg = "can device '{}' found".format(canid)
-    else:
-        msg = "No can device registered as '{}'".format(canid)
-    test.compare(loc >= 0, True, msg)
+    ok, msg = check_can0()
+    test.compare(ok, True, msg)
Index: dialin/squish/utils.py
===================================================================
diff -u -rf33ee24b00b5a33c730ed539c072199a56c1c78f -r202904412c10730523596c96a2f5d885e5d019d0
--- dialin/squish/utils.py	(.../utils.py)	(revision f33ee24b00b5a33c730ed539c072199a56c1c78f)
+++ dialin/squish/utils.py	(.../utils.py)	(revision 202904412c10730523596c96a2f5d885e5d019d0)
@@ -16,6 +16,7 @@
 
 import time
 import struct
+from subprocess import check_output
 
 
 def SRSUI(vSRSUI = ""):
@@ -162,3 +163,18 @@
     """
     return vValue / 1000
 
+def check_can0():
+    """
+    check if the can0 bus driver presents
+    :return: (list) false if can0 not exists, msg as a message 
+    """
+    canid = "can0"
+    ipa = "ip a"
+    ipa = check_output(ipa, shell=True)
+    loc = str(ipa).find(canid)
+    fnd = loc >= 0
+    if (fnd):
+        msg = "can device '{}' found".format(canid)
+    else:
+        msg = "No can device registered as '{}'".format(canid)
+    return loc >= 0, msg
\ No newline at end of file