tests: Replace umodule with module everywhere.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

tests/extmod/binascii_unhexlify.py

@@ -0,0 +1,23 @@
+try:
+    import binascii
+except ImportError:
+    print("SKIP")
+    raise SystemExit
+
+for x in (
+    b"0001020304050607",
+    b"08090a0b0c0d0e0f",
+    b"7f80ff",
+    b"313233344142434461626364",
+):
+    print(binascii.unhexlify(x))
+
+try:
+    a = binascii.unhexlify(b"0")  # odd buffer length
+except ValueError:
+    print("ValueError")
+
+try:
+    a = binascii.unhexlify(b"gg")  # digit not hex
+except ValueError:
+    print("ValueError")