Added uuid unit test.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

tools/python/xen/xend/tests/test_uuid.py

@@ -0,0 +1,30 @@
+import unittest
+
+from xen.xend import uuid
+
+
+class test_uuid(unittest.TestCase):
+
+    def testStringRoundtrip(self):
+        def t(inp):
+            self.assertEqual(uuid.fromString(uuid.toString(inp)), inp)
+
+        t(uuid.create())
+        t(uuid.create())
+        t(uuid.create())
+        t(uuid.create())
+        t(uuid.create())
+
+
+    def testToFromString(self):
+        def t(inp, expected):
+            self.assertEqual(uuid.toString(inp), expected)
+            self.assertEqual(uuid.fromString(expected), inp)
+
+        t([0 for i in range(0, 16)], "00000000-0000-0000-0000-000000000000")
+        t([185, 158, 125, 206, 250, 178, 125, 57, 2, 6, 162, 74, 178, 236,
+           196, 5], "b99e7dce-fab2-7d39-0206-a24ab2ecc405")
+
+
+def test_suite():
+    return unittest.makeSuite(test_uuid)