add setup enter-point for unittest; use testsuite

setup.py

@@ -81,6 +81,7 @@ setup(
             're6st-conf=re6st.cli.conf:main',
             're6stnet=re6st.cli.node:main',
             're6st-registry=re6st.cli.registry:main',
+            're6st-testrunner=tests.test_registry:main'
         ],
     },
     package_data = {

tests/test_registry.py

@@ -499,5 +499,15 @@ class TestRegistrtServer(unittest.TestCase):
         self.assertEqual(res, expect_res)
 
 
+def main():
+    test_dir = os.path.dirname(os.path.abspath(__file__))
+    os.chdir(test_dir)
+    suite = unittest.TestSuite()
+    for method in dir(TestRegistrtServer):
+       if method.startswith("test"):
+          suite.addTest(TestRegistrtServer(method))
+    unittest.TextTestRunner().run(suite)
+
+
 if __name__ == "__main__":
-    unittest.main()
+    main()