added files for vdf proofing

tests/test_block_vdf_proof.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+import sys, os
+sys.path.append(".")
+sys.path.append("src/")
+import uuid
+TEST_DIR = 'testdata/%s-%s' % (uuid.uuid4(), os.path.basename(__file__)) + '/'
+print("Test directory:", TEST_DIR)
+os.environ["ONIONR_HOME"] = TEST_DIR
+import unittest, json
+
+from utils import identifyhome, createdirs
+from onionrsetup import setup_config
+from onionrproofs import vdf
+from time import time
+
+createdirs.create_dirs()
+setup_config()
+
+class TestVdf(unittest.TestCase):
+    def test_vdf(self):
+        res = vdf.create(b'test')
+        int(res, 16)
+        if len(res) == 0: raise ValueError
+        self.assertEqual(vdf.multiproces_create(b'test'), res)
+    def test_speed(self):
+        t = time()
+        vdf.create(b'test')
+        self.assertTrue(time() - t <= 10)
+        # test 2 kb
+        t = time()
+        vdf.create(b't'*10000)
+        self.assertTrue(time() - t >= 10)
+        #timeit(lambda: vdf.create(b'test'))
+
+
+unittest.main()