diff --git a/tests/helper.py b/tests/helper.py
index 3217696..b7719fd 100644
--- a/tests/helper.py
+++ b/tests/helper.py
@@ -13,8 +13,11 @@ def repl(x):
             "b'", "'").replace(
             "\n", "").replace(
             "float32", "'>f4'")
-
-    assert repl(data_a) == repl(data_b)
+    a = repl(data_a)
+    b = repl(data_b)
+    print("DBUG data_a: ", a)
+    print("DBUG data_b: ", b)
+    assert a == b
 
 
 def dumpibw(filename):