Add new dynamic scaling test

Updating params files to include missing test case

Change-Id: I795ba55eebe58a147f9d531790b604bf6621f1fa
diff --git a/TestON/tests/HA/HAscaling/dependencies/Server.py b/TestON/tests/HA/HAscaling/dependencies/Server.py
new file mode 100644
index 0000000..bff976f
--- /dev/null
+++ b/TestON/tests/HA/HAscaling/dependencies/Server.py
@@ -0,0 +1,148 @@
+"Functions for using the SimpleHTTPServer python module"
+import re
+
+class Server():
+
+    def __init__( self ):
+        self.default = ''
+        self.PID = -1
+        self.component = None
+        self.rootDir = None
+
+    def __del__( self ):
+        self.stop()
+
+    def start( self, component, rootDir, port=8000, logDir=None ):
+        """
+        Start SimpleHTTPServer as a background process from rootDir on the
+        given component. The webserver will listen on port and if specified,
+        output will be redirected to logDir.
+
+        Arguments:
+        - component = The TestON component handle to start the webserver on
+        - rootDir = The root directory for the web content
+        - port = The port number for the webserver to listen on. Defaults to 8000
+        - logDir = If specified, the output of the webserver will be redirected
+                   to this file. Note that this should be either an absolute path
+                   or relative to rootDir.
+        Returns:
+            main.TRUE if the command succedes or main.FALSE if there is an error.
+        """
+        retValue = main.TRUE
+        self.rootDir = rootDir
+        try:
+            # Save component for this instance so other functions can use it
+            self.component = component
+            main.log.info( "Starting SimpleHTTPServer on " + component.name )
+            if component.handle:
+                handle = component.handle
+                # cd to rootDir
+                handle.sendline( "cd " + str( rootDir ) )
+                handle.expect( "\$" )
+                # Start server
+                cmd = "python -m SimpleHTTPServer {}".format( port )
+                if logDir:
+                    cmd += " &> {}".format( logDir )  # pipe all output to a file
+                else:
+                    cmd += "&> {dev/null}" # Throw away all output
+                cmd += " &"
+                handle.sendline( cmd )
+                handle.expect( "\$" )
+                response = handle.before
+                # Return to home dir
+                handle.sendline( "cd " + component.home )
+                handle.expect( "\$" )
+                response += handle.before
+                if "Exit" in response:
+                    main.log.error( "Error starting server. Check server log for details" )
+                    main.log.debug( handle.before )
+                    retValue = main.FALSE
+                # capture PID for later use
+                # EX: [1] 67987
+                match = re.search( "\[\d\] (?P<PID>\d+)", response )
+                if match:
+                    self.PID = match.group( "PID" )
+                else:
+                    main.log.warn( "Could not find PID" )
+            else:
+                main.log.error( "Component handle is not set" )
+                retValue = main.FALSE
+        except Exception:
+            main.log.exception( "Error starting web server" )
+            retValue = main.FALSE
+        return retValue
+
+    def stop( self ):
+        """
+        Kills the process of the server. Note that this function must be run
+        from the same instance of the server class that the server was started
+        on.
+        """
+        retValue = main.TRUE
+        try:
+            main.log.info( "Stopping Server." )
+            assert self.component, "Component not specified"
+            assert self.PID, "PID not found"
+            if self.component.handle:
+                handle = self.component.handle
+                cmd = "sudo kill {}".format( self.PID )
+                handle.sendline( cmd )
+                handle.expect( "\$" )
+                # TODO: What is bad output? cannot sudo?
+            else:
+                main.log.error( "Component handle is not set" )
+                retValue = main.FALSE
+        except Exception:
+            main.log.exception( "Error stopping web server" )
+            retValue = main.FALSE
+        return retValue
+
+    def generateFile( self, nodes, equal=False, filename="cluster.json" ):
+        """
+        Generate custom metadata file in the root directory using the custom
+        onos-gen-partitions file which should also be located in the root
+        directory.
+
+        Note that this function needs to be run after the start function has
+        been called for this instance.
+
+        Arguments:
+        - nodes = The number of ONOS nodes to include in the cluster. Will
+                  include nodes in ascending order, I.E. OC1, OC2, etc
+
+        Optional Arguments:
+        - equal = Specifies whether all nodes should participate in every
+                  partition. Defaults to False.
+        - filename = The name of the file to save the cluster metadata to.
+                     Defaults to "cluster.json".
+        Returns:
+            main.TRUE if the command succedes or main.FALSE if there is an error.
+        """
+        retValue = main.TRUE
+        try:
+            if self.component.handle:
+                assert self.component, "Component not specified. Please start the server first"
+                assert self.rootDir, "Root directory not found"
+                handle = self.component.handle
+                # cd to rootDir
+                handle.sendline( "cd " + str( self.rootDir ) )
+                handle.expect( "\$" )
+                cmd = "./onos-gen-partitions {} {} ".format( filename, nodes )
+                if equal:
+                    cmd += "-e"
+                handle.sendline( cmd )
+                handle.expect( "\$" )
+                response = handle.before
+                # Return to home dir
+                handle.sendline( "cd " + self.component.home )
+                handle.expect( "\$" )
+                response += handle.before
+                if "Traceback" in response:
+                    main.log.error( handle.before )
+                    retValue = main.FALSE
+            else:
+                main.log.error( "Component handle is not set" )
+                retValue = main.FALSE
+        except Exception:
+            main.log.exception( "Error generating metadata file" )
+        return retValue