Resolve VCSWP-19571 (Fix test bug for python sdk) (#38)

* Fix test bug for python sdk

* Extract timestamp into variable for python sdk

* Use class variable instead of global variable for time_stamp

Author: amahadaya

test/test_signature_information.py

@@ -1,12 +1,16 @@
+import sys
 import unittest
 
 from freeclimb.utils.signature_information import SignatureInformation
 
+
+
 class TestSignatureInformation(unittest.TestCase):
     """SignatureInformation unit test stubs"""
+    time_stamp = 1679944186
 
     def setUp(self):
-        request_header = "t=1679944186,v1=c3957749baf61df4b1506802579cc69a74c77a1ae21447b930e5a704f9ec4120,v1=1ba18712726898fbbe48cd862dd096a709f7ad761a5bab14bda9ac24d963a6a8"
+        request_header = "t=" + str(TestSignatureInformation.time_stamp) + ",v1=c3957749baf61df4b1506802579cc69a74c77a1ae21447b930e5a704f9ec4120,v1=1ba18712726898fbbe48cd862dd096a709f7ad761a5bab14bda9ac24d963a6a8"
         self.signature_information = SignatureInformation(request_header)
 
     def tearDown(self):
@@ -17,7 +21,7 @@ def test_is_request_time_valid_true(self):
         self.assertEqual(self.signature_information.is_request_time_valid(tolerance), True)
 
     def test_is_request_time_valid_false(self):
-        tolerance = 5 * 60 * 10000
+        tolerance = sys.maxsize - TestSignatureInformation.time_stamp
         self.assertEqual(self.signature_information.is_request_time_valid(tolerance), False)
 
     def test_is_signature_safe_true(self):