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preparation for integration tests
[osm/vim-emu.git] / src / emuvim / test / unittests / test_emulator.py
diff --git a/src/emuvim/test/unittests/test_emulator.py b/src/emuvim/test/unittests/test_emulator.py
new file mode 100755 (executable)
index 0000000..243f050
--- /dev/null
+++ b/src/emuvim/test/unittests/test_emulator.py
@@ -0,0 +1,270 @@
+"""
+Test suite to automatically test emulator functionalities.
+Directly interacts with the emulator through the Mininet-like
+Python API.
+
+Does not test API endpoints. This is done in separated test suites.
+"""
+
+import time
+import unittest
+from emuvim.dcemulator.node import EmulatorCompute
+from emuvim.test.base import SimpleTestTopology
+
+
+#@unittest.skip("disabled topology tests for development")
+class testEmulatorTopology( SimpleTestTopology ):
+    """
+    Tests to check the topology API of the emulator.
+    """
+
+    def testSingleDatacenter(self):
+        """
+        Create a single data center and add check if its switch is up
+        by using manually added hosts. Tests especially the
+        data center specific addLink method.
+        """
+        # create network
+        self.createNet(nswitches=0, ndatacenter=1, nhosts=2, ndockers=0)
+        # setup links
+        self.net.addLink(self.dc[0], self.h[0])
+        self.net.addLink(self.h[1], self.dc[0])
+        # start Mininet network
+        self.startNet()
+        # check number of running nodes
+        self.assertTrue(len(self.getContainernetContainers()) == 0)
+        self.assertTrue(len(self.net.hosts) == 2)
+        self.assertTrue(len(self.net.switches) == 1)
+        # check connectivity by using ping
+        self.assertTrue(self.net.ping([self.h[0], self.h[1]]) <= 0.0)
+        # stop Mininet network
+        self.stopNet()
+
+    #@unittest.skip("disabled to test if CI fails because this is the first test.")
+    def testMultipleDatacenterDirect(self):
+        """
+        Create a two data centers and interconnect them.
+        """
+        # create network
+        self.createNet(nswitches=0, ndatacenter=2, nhosts=2, ndockers=0)
+        # setup links
+        self.net.addLink(self.dc[0], self.h[0])
+        self.net.addLink(self.h[1], self.dc[1])
+        self.net.addLink(self.dc[0], self.dc[1])
+        # start Mininet network
+        self.startNet()
+        # check number of running nodes
+        self.assertTrue(len(self.getContainernetContainers()) == 0)
+        self.assertTrue(len(self.net.hosts) == 2)
+        self.assertTrue(len(self.net.switches) == 2)
+        # check connectivity by using ping
+        self.assertTrue(self.net.ping([self.h[0], self.h[1]]) <= 0.0)
+        # stop Mininet network
+        self.stopNet()
+
+    def testMultipleDatacenterWithIntermediateSwitches(self):
+        """
+        Create a two data centers and interconnect them with additional
+        switches between them.
+        """
+        # create network
+        self.createNet(
+            nswitches=3, ndatacenter=2, nhosts=2, ndockers=0,
+            autolinkswitches=True)
+        # setup links
+        self.net.addLink(self.dc[0], self.h[0])
+        self.net.addLink(self.h[1], self.dc[1])
+        self.net.addLink(self.dc[0], self.s[0])
+        self.net.addLink(self.s[2], self.dc[1])
+        # start Mininet network
+        self.startNet()
+        # check number of running nodes
+        self.assertTrue(len(self.getContainernetContainers()) == 0)
+        self.assertTrue(len(self.net.hosts) == 2)
+        self.assertTrue(len(self.net.switches) == 5)
+        # check connectivity by using ping
+        self.assertTrue(self.net.ping([self.h[0], self.h[1]]) <= 0.0)
+        # stop Mininet network
+        self.stopNet()
+
+
+#@unittest.skip("disabled compute tests for development")
+class testEmulatorCompute( SimpleTestTopology ):
+    """
+    Tests to check the emulator's API to add and remove
+    compute resources at runtime.
+    """
+
+    def testAddSingleComputeSingleDC(self):
+        """
+        Adds a single compute instance to
+        a single DC and checks its connectivity with a
+        manually added host.
+        """
+        # create network
+        self.createNet(nswitches=0, ndatacenter=1, nhosts=1, ndockers=0)
+        # setup links
+        self.net.addLink(self.dc[0], self.h[0])
+        # start Mininet network
+        self.startNet()
+        # add compute resources
+        vnf1 = self.dc[0].startCompute("vnf1")
+        # check number of running nodes
+        self.assertTrue(len(self.getContainernetContainers()) == 1)
+        self.assertTrue(len(self.net.hosts) == 2)
+        self.assertTrue(len(self.net.switches) == 1)
+        # check compute list result
+        self.assertTrue(len(self.dc[0].listCompute()) == 1)
+        self.assertTrue(isinstance(self.dc[0].listCompute()[0], EmulatorCompute))
+        self.assertTrue(self.dc[0].listCompute()[0].name == "vnf1")
+        # check connectivity by using ping
+        self.assertTrue(self.net.ping([self.h[0], vnf1]) <= 0.0)
+        # stop Mininet network
+        self.stopNet()
+
+    def testRemoveSingleComputeSingleDC(self):
+        """
+        Test stop method for compute instances.
+        Check that the instance is really removed.
+        """
+        # create network
+        self.createNet(nswitches=0, ndatacenter=1, nhosts=1, ndockers=0)
+        # setup links
+        self.net.addLink(self.dc[0], self.h[0])
+        # start Mininet network
+        self.startNet()
+        # add compute resources
+        vnf1 = self.dc[0].startCompute("vnf1")
+        # check number of running nodes
+        self.assertTrue(len(self.getContainernetContainers()) == 1)
+        self.assertTrue(len(self.net.hosts) == 2)
+        self.assertTrue(len(self.net.switches) == 1)
+        # check compute list result
+        self.assertTrue(len(self.dc[0].listCompute()) == 1)
+        # check connectivity by using ping
+        self.assertTrue(self.net.ping([self.h[0], vnf1]) <= 0.0)
+        # remove compute resources
+        self.dc[0].stopCompute("vnf1")
+        # check number of running nodes
+        self.assertTrue(len(self.getContainernetContainers()) == 0)
+        self.assertTrue(len(self.net.hosts) == 1)
+        self.assertTrue(len(self.net.switches) == 1)
+        # check compute list result
+        self.assertTrue(len(self.dc[0].listCompute()) == 0)
+        # stop Mininet network
+        self.stopNet()
+
+    def testGetStatusSingleComputeSingleDC(self):
+        """
+        Check if the getStatus functionality of EmulatorCompute
+        objects works well.
+        """
+        # create network
+        self.createNet(nswitches=0, ndatacenter=1, nhosts=1, ndockers=0)
+        # setup links
+        self.net.addLink(self.dc[0], self.h[0])
+        # start Mininet network
+        self.startNet()
+        # add compute resources
+        vnf1 = self.dc[0].startCompute("vnf1")
+        # check number of running nodes
+        self.assertTrue(len(self.getContainernetContainers()) == 1)
+        self.assertTrue(len(self.net.hosts) == 2)
+        self.assertTrue(len(self.net.switches) == 1)
+        # check compute list result
+        self.assertTrue(len(self.dc[0].listCompute()) == 1)
+        self.assertTrue(isinstance(self.dc[0].listCompute()[0], EmulatorCompute))
+        self.assertTrue(self.dc[0].listCompute()[0].name == "vnf1")
+        # check connectivity by using ping
+        self.assertTrue(self.net.ping([self.h[0], vnf1]) <= 0.0)
+        # check get status
+        s = self.dc[0].containers.get("vnf1").getStatus()
+        self.assertTrue(s["name"] == "vnf1")
+        self.assertTrue(s["state"]["Running"])
+        # stop Mininet network
+        self.stopNet()
+
+    def testConnectivityMultiDC(self):
+        """
+        Test if compute instances started in different data centers
+        are able to talk to each other.
+        """
+        # create network
+        self.createNet(
+            nswitches=3, ndatacenter=2, nhosts=0, ndockers=0,
+            autolinkswitches=True)
+        # setup links
+        self.net.addLink(self.dc[0], self.s[0])
+        self.net.addLink(self.dc[1], self.s[2])
+        # start Mininet network
+        self.startNet()
+        # add compute resources
+        vnf1 = self.dc[0].startCompute("vnf1")
+        vnf2 = self.dc[1].startCompute("vnf2")
+        # check number of running nodes
+        self.assertTrue(len(self.getContainernetContainers()) == 2)
+        self.assertTrue(len(self.net.hosts) == 2)
+        self.assertTrue(len(self.net.switches) == 5)
+        # check compute list result
+        self.assertTrue(len(self.dc[0].listCompute()) == 1)
+        self.assertTrue(len(self.dc[1].listCompute()) == 1)
+        # check connectivity by using ping
+        self.assertTrue(self.net.ping([vnf1, vnf2]) <= 0.0)
+        # stop Mininet network
+        self.stopNet()
+
+    def testInterleavedAddRemoveMultiDC(self):
+        """
+        Test multiple, interleaved add and remove operations and ensure
+        that always all expected compute instances are reachable.
+        """
+                # create network
+        self.createNet(
+            nswitches=3, ndatacenter=2, nhosts=0, ndockers=0,
+            autolinkswitches=True)
+        # setup links
+        self.net.addLink(self.dc[0], self.s[0])
+        self.net.addLink(self.dc[1], self.s[2])
+        # start Mininet network
+        self.startNet()
+        # add compute resources
+        vnf1 = self.dc[0].startCompute("vnf1")
+        vnf2 = self.dc[1].startCompute("vnf2")
+        # check number of running nodes
+        self.assertTrue(len(self.getContainernetContainers()) == 2)
+        self.assertTrue(len(self.net.hosts) == 2)
+        self.assertTrue(len(self.net.switches) == 5)
+        # check compute list result
+        self.assertTrue(len(self.dc[0].listCompute()) == 1)
+        self.assertTrue(len(self.dc[1].listCompute()) == 1)
+        # check connectivity by using ping
+        self.assertTrue(self.net.ping([vnf1, vnf2]) <= 0.0)
+        # remove compute resources
+        self.dc[0].stopCompute("vnf1")
+        # check number of running nodes
+        self.assertTrue(len(self.getContainernetContainers()) == 1)
+        self.assertTrue(len(self.net.hosts) == 1)
+        self.assertTrue(len(self.net.switches) == 5)
+        # check compute list result
+        self.assertTrue(len(self.dc[0].listCompute()) == 0)
+        self.assertTrue(len(self.dc[1].listCompute()) == 1)
+        # add compute resources
+        vnf3 = self.dc[0].startCompute("vnf3")
+        vnf4 = self.dc[0].startCompute("vnf4")
+        # check compute list result
+        self.assertTrue(len(self.dc[0].listCompute()) == 2)
+        self.assertTrue(len(self.dc[1].listCompute()) == 1)
+        self.assertTrue(self.net.ping([vnf3, vnf2]) <= 0.0)
+        self.assertTrue(self.net.ping([vnf4, vnf2]) <= 0.0)
+        # remove compute resources
+        self.dc[0].stopCompute("vnf3")
+        self.dc[0].stopCompute("vnf4")
+        self.dc[1].stopCompute("vnf2")
+        # check compute list result
+        self.assertTrue(len(self.dc[0].listCompute()) == 0)
+        self.assertTrue(len(self.dc[1].listCompute()) == 0)
+        # stop Mininet network
+        self.stopNet()
+
+if __name__ == '__main__':
+    unittest.main()