[ONOS-7398] Add SegmentRouting DHCPRelay test

Change-Id: I7cb9da8e1cb7a12b26d96f5d1b8cf3c1ba9bedfd
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/SRDhcprelayTest.py b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/SRDhcprelayTest.py
new file mode 100644
index 0000000..1ac4f7a
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/SRDhcprelayTest.py
@@ -0,0 +1,81 @@
+"""
+Copyright 2017 Open Networking Foundation ( ONF )
+
+Please refer questions to either the onos test mailing list at <onos-test@onosproject.org>,
+the System Testing Plans and Results wiki page at <https://wiki.onosproject.org/x/voMg>,
+or the System Testing Guide page at <https://wiki.onosproject.org/x/WYQg>
+
+    TestON is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    ( at your option ) any later version.
+
+    TestON is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with TestON.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+from tests.USECASE.SegmentRouting.dependencies.Testcaselib import Testcaselib as run
+
+class SRDhcprelayTest ():
+
+    def __init__( self ):
+        self.default = ''
+
+    @staticmethod
+    def runTest( main, testIndex, onosNodes, description, dhcpRelay=False, remoteServer=False, multipleServer=False, ipv6=False, vlan=[], dualHomed=False ):
+        skipPackage = False
+        init = False
+        if not hasattr( main, 'apps' ):
+            init = True
+            run.initTest( main )
+        # Skip onos packaging if the clusrer size stays the same
+        if not init and onosNodes == main.Cluster.numCtrls:
+            skipPackage = True
+
+        main.case( '%s, with %d ONOS instance%s' %
+                   ( description, onosNodes, 's' if onosNodes > 1 else '' ) )
+
+        main.cfgName = 'CASE%02d' % testIndex
+        main.configPath = main.path + "/dependencies/"
+        main.resultFileName = 'CASE%02d' % testIndex
+        main.Cluster.setRunningNode( onosNodes )
+        run.installOnos( main, skipPackage=skipPackage, cliSleep=5 )
+        import json
+        with open( "%s/json/%s.host" % ( main.configPath, main.cfgName ) ) as host:
+            main.expectedHosts = json.load( host )
+        if hasattr( main, 'Mininet1' ):
+            # Run the test with Mininet
+            if dualHomed:
+                mininet_args = ' --spine=2 --leaf=4 --dual-homed'
+            else:
+                mininet_args = ' --spine=2 --leaf=2'
+            mininet_args += ' --dhcp-client'
+            if dhcpRelay:
+                mininet_args += ' --dhcp-relay'
+                if multipleServer:
+                    mininet_args += ' --multiple-dhcp-server'
+            if remoteServer:
+                mininet_args += ' --remote-dhcp-server'
+            if ipv6:
+                mininet_args += ' --ipv6'
+            if len( vlan ) > 0 :
+                mininet_args += ' --vlan=%s' % ( ','.join( ['%d' % vlanId for vlanId in vlan ] ) )
+
+            run.startMininet( main, 'trellis_fabric.py', args=mininet_args )
+        else:
+            # Run the test with physical devices
+            # TODO: connect TestON to the physical network
+            pass
+        run.verifyOnosHostIp( main )
+        run.verifyNetworkHostIp( main )
+
+        if hasattr( main, 'Mininet1' ):
+            run.cleanup( main )
+        else:
+            # TODO: disconnect TestON from the physical network
+            pass