make sure that when the board is released, power is turned off...

bitelab/snmp.py

@@ -89,6 +89,8 @@ class SNMPPower(Power):
 		return await snmpset(self.host,
 		    'pethPsePortAdminEnable.1.%d' % self.port, 'bool', v)
 
+	async def deactivate(self, brd):
+		return await self.setvalue(False)
 
 class TestSNMPWrapper(unittest.IsolatedAsyncioTestCase):
 	@patch('asyncio.create_subprocess_exec')
@@ -171,3 +173,12 @@ class TestSNMPPower(unittest.IsolatedAsyncioTestCase):
 		# calls snmpset w/ the correct args
 		ss.assert_called_with('host', 'pethPsePortAdminEnable.1.5',
 		    'bool', True)
+
+		ss.reset_mock()
+
+		# that when deactivate is called
+		await sp.deactivate(None)
+
+		# calls snmpset w/ the correct args
+		ss.assert_called_with('host', 'pethPsePortAdminEnable.1.5',
+		    'bool', False)