From d4ce82136d08dd3a15b0832517ce1d3cab2e2870 Mon Sep 17 00:00:00 2001
From: Kamal Mostafa <kamal@whence.com>
Date: Sun, 24 Apr 2016 09:39:32 -0700
Subject: [PATCH] tests: use cmp not md5sum for tx-consistency tests

OS X doesn't provide md5sum.
https://github.com/kamalmostafa/minimodem/issues/24#issuecomment-213816836
---
 tests/16-verify-tx-consistent.test | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/tests/16-verify-tx-consistent.test b/tests/16-verify-tx-consistent.test
index 8974bb7..f1ea2ea 100755
--- a/tests/16-verify-tx-consistent.test
+++ b/tests/16-verify-tx-consistent.test
@@ -19,32 +19,22 @@ trap "rm -f $TMPF.*" 0
 set -e
 
 $MINIMODEM --tx --file $TMPF.1.wav $minimodem_tx_args < "$textfile"
-sum1=$(md5sum -b < $TMPF.1.wav)
-echo "$sum1 $TMPF.1.wav"
-
 sleep 1
-
 $MINIMODEM --tx --file $TMPF.2.wav $minimodem_tx_args < "$textfile"
-sum2=$(md5sum -b < $TMPF.2.wav)
-echo "$sum2 $TMPF.2.wav"
-
 sleep 1
-
 $MINIMODEM --tx --file $TMPF.3.wav $minimodem_tx_args < "$textfile"
-sum3=$(md5sum -b < $TMPF.3.wav)
-echo "$sum3 $TMPF.3.wav"
 
-[ "$sum1" == "$sum2" ] || {
+cmp -s $TMPF.1.wav $TMPF.2.wav || {
     echo -e "TX-NOT-CONSISTENT"
     exit 1
 }
 
-[ "$sum1" == "$sum3" ] || {
+cmp -s $TMPF.1.wav $TMPF.3.wav || {
     echo -e "TX-NOT-CONSISTENT"
     exit 1
 }
 
-stats="$sum1"
+stats="three runs of '--tx $minimodem_tx_args' created identical output"
 
 result="OK     "
 exitcode=0