Better packet dump routine
diff --git a/tests/testutils.py b/tests/testutils.py
index 0a6c4bd..0380ade 100644
--- a/tests/testutils.py
+++ b/tests/testutils.py
@@ -817,3 +817,26 @@
rv["matched"] += obj.matched_count
return rv
+
+FILTER=''.join([(len(repr(chr(x)))==3) and chr(x) or '.'
+ for x in range(256)])
+
+def hex_dump_buffer(src, length=16):
+ """
+ Convert src to a hex dump string and return the string
+ @param src The source buffer
+ @param length The number of bytes shown in each line
+ @returns A string showing the hex dump
+ """
+ result = []
+ for i in xrange(0, len(src), length):
+ chars = src[i:i+length]
+ hex = ' '.join(["%02x" % ord(x) for x in chars])
+ printable = ''.join(["%s" % ((ord(x) <= 127 and
+ FILTER[ord(x)]) or '.') for x in chars])
+ result.append("%04x %-*s %s\n" % (i, length*3, hex, printable))
+ return ''.join(result)
+
+def format_packet(pkt):
+ return "Packet length %d \n%s" % (len(str(pkt)),
+ hex_dump_buffer(str(pkt)))