TEST: Finalize libca in between caget calls to force new context.

Needed to demo undef timestamp bug in gateway >= R2-0-6-0
epics-extensions/ca-gateway#35

testTop/pyTestsApp/TestEnumUndefinedTimestamp.py

@@ -49,30 +49,49 @@ def testUndefTimestamp(self):
         '''Two caget on an mbbi - both timestamps should be defined.'''
         iocPV = epics.PV("ioc:HUGO:ENUM", auto_monitor=None)
         iocPV.add_callback(self.onChangeIOC)
+
+        # Create a new CA context for the gateway PV
+        epics.ca.detach_context()
+        epics.ca.create_context()
+
         gwPV1  = epics.PV("gateway:HUGO:ENUM", auto_monitor=None)
         gwPV1.add_callback(self.onChangeGW)
         iocEnumValue = iocPV.get()
         gwEnumValue  = gwPV1.get()
+        if gwtests.verbose:
+            print( "iocPV value =", iocEnumValue, " timestamp =", timestamp_to_string(iocPV.timestamp) )
+            print( "gwPV1 value =", gwEnumValue,  " timestamp =", timestamp_to_string(gwPV1.timestamp) )
 
         # Verify timestamp and value match
-        self.assertTrue( iocEnumValue == gwEnumValue,
+        self.assertEqual( iocEnumValue, gwEnumValue,
                 'ioc enum {0} !=\ngw enum {1}'.format( iocEnumValue, gwEnumValue ) )
+        self.assertEqual( iocPV.timestamp, gwPV1.timestamp,
+                'ioc timestamp {0} != gw timestamp {1}'.format(
+                    timestamp_to_string(iocPV.timestamp), timestamp_to_string(gwPV1.timestamp)))
 
         # Close current CA context and open a new one
+        gwPV1 = None 
         epics.ca.detach_context()
-        epics.ca.create_context()
+        epics.ca.finalize_libca()
+        epics.ca.initialize_libca()
+        #epics.ca.create_context()
 
         '''Two caget on an mbbi - both timestamps should be defined.'''
         # Now get the gateway value again and make sure the timestamp is not undefined
         gwPV2  = epics.PV("gateway:HUGO:ENUM", auto_monitor=None)
         gwPV2.add_callback(self.onChangeGW)
         gwEnumValue  = gwPV2.get()
+        if gwtests.verbose:
+            print( "gwPV2 value =", gwEnumValue,  " timestamp =", timestamp_to_string(gwPV2.timestamp) )
         if iocPV.status != epics.dbr.AlarmStatus.UDF:
-            self.assertTrue( gwPV2.status != epics.dbr.AlarmStatus.UDF,
-                '2nd CA get is undefined!' )
-        self.assertTrue( gwPV2.timestamp != 0, '2nd CA get timestamp is undefined!' )
-        self.assertTrue( iocEnumValue == gwEnumValue,
-                'ioc enum {0} !=\ngw enum {1}'.format( iocEnumValue, gwEnumValue ) )
+            self.assertNotEqual( gwPV2.status, epics.dbr.AlarmStatus.UDF, '2nd CA get status is undefined!' )
+        self.assertEqual( iocEnumValue, gwEnumValue,
+                'ioc enum {0} != gw enum {1}'.format( iocEnumValue, gwEnumValue ) )
+        if not timestamp_is_undefined(iocPV.timestamp):
+            self.assertFalse( timestamp_is_undefined(gwPV2.timestamp),   '2nd CA get timestamp is undefined!' )
+        self.assertEqual( iocPV.timestamp, gwPV2.timestamp,
+                'ioc timestamp {0} != gw timestamp {1}'.format(
+                    timestamp_to_string(iocPV.timestamp), timestamp_to_string(gwPV2.timestamp)))
 
 if __name__ == '__main__':
     unittest.main(verbosity=2)