some test cases for Link

t/test_link.py

+#!/usr/bin/env python
+# vim:ts=4:sw=4:et:ai:sts=4
+
+import os, unittest
+import netns, test_util
+
+class TestGlobal(unittest.TestCase):
+    @test_util.skipUnless(os.getuid() == 0, "Test requires root privileges")
+    def test_link(self):
+        n1 = netns.Node()
+        n2 = netns.Node()
+        i1 = n1.add_if()
+        i2 = n2.add_if()
+        l = netns.Link()
+        l.connect(i1)
+        l.connect(i2)
+
+        l.mtu = 3000
+        ifdata = netns.iproute.get_if_data()[0]
+        self.assertEquals(ifdata[l.index].mtu, 3000)
+        self.assertEquals(ifdata[i1.control.index].mtu, 3000, "MTU propagation")
+        self.assertEquals(ifdata[i2.control.index].mtu, 3000, "MTU propagation")
+        i1.mtu = i2.mtu = 3000
+
+        self.assertEquals(ifdata[l.index].up, False)
+        self.assertEquals(ifdata[i1.control.index].up, False, "UP propagation")
+        self.assertEquals(ifdata[i2.control.index].up, False, "UP propagation")
+
+        l.up = True
+        ifdata = netns.iproute.get_if_data()[0]
+        self.assertEquals(ifdata[i1.control.index].up, True, "UP propagation")
+        self.assertEquals(ifdata[i2.control.index].up, True, "UP propagation")
+        #bandwidth = 100*1024*1024/8, loss=10, loss_correlation=1,delay=0.001,dup_correlation=0.1); 
+        # FIXME: more cases
+
+if __name__ == '__main__':
+    unittest.main()