fix: hex to binary validation

omgnetwork · Nov 7, 2019 · 160d0b4 · 160d0b4
1 parent dd53831
commit 160d0b4
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/plasma_framework/python_tests/plasma_core/utils/utils.py b/plasma_framework/python_tests/plasma_core/utils/utils.py
@@ -20,6 +20,7 @@ def normalize_key(key):
 
 
 def hex_to_binary(h):
+    assert isinstance(h, str)
     if h[:2] == '0x':
         h = h[2:]
     return bytes.fromhex(h)