[wip] factoring vdk out into several packages

libs/vdk_tests_cases/testgen/rlptests.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python3.9
+
+'''
+generate rlp tests
+
+really checking to see if my code matches the ethereum python rlp package which
+has 85 stars on github
+
+requires rlp package, which requires python 3.7 or greater
+
+this checks to see if my Erlang implementation matches python. It works for
+59,638 randomly generated test cases
+'''
+
+# need more cases
+# single bytes
+# empty list
+# list with variable number of elements
+# element has equal chance of becoming a list or a binary
+
+import rlp
+import random as r
+
+from rlpcases import cases
+
+def main():
+    all_encode_work = True
+    all_decode_work = True
+    for case in cases:
+        decoded_data       = case['decoded']
+        encoded_bytes      = case['encoded']
+        real_encoded_bytes = rlp.encode(decoded_data)
+        real_decoded_data  = rlp.decode(encoded_bytes)
+        # check if encode/decode works
+        encode_works = (real_encoded_bytes == encoded_bytes)
+        decode_works = (real_decoded_data == decoded_data)
+        print('encode works: %s' % (encode_works))
+        print('decode works: %s' % (decode_works))
+        # update globals
+        all_encode_work = all_encode_work and encode_works
+        all_decode_work = all_decode_work and decode_works
+    # print globals
+    print('all encode work: %s' % (all_encode_work))
+    print('all decode work: %s' % (all_decode_work))
+    #print(format_cases_erl(c))
+
+if __name__ == '__main__':
+    main()
+