diff --git a/t/61_diff_testsslsh.t b/t/61_diff_testsslsh.t
new file mode 100755
index 0000000..6a13c96
--- /dev/null
+++ b/t/61_diff_testsslsh.t
@@ -0,0 +1,66 @@
+#!/usr/bin/env perl
+
+# Baseline diff test against testssl, (csv output)
+#
+# We don't use a full run yet and omiy the certificate section.
+# There we would need to blacklist at least:
+# cert_serialNumber, cert_fingerprintSHA1, cert_fingerprintSHA256, cert
+# cert_expirationStatus, cert_notBefore, cert_notAfter, cert_caIssuers, intermediate_cert
+#
+# help is apreciated here
+
+use strict;
+use Test::More;
+use Data::Dumper;
+use File::Compare;
+use Text::Diff;
+
+my $tests = 0;
+my $prg="./testssl.sh";
+my $master_socket_csv="./t/baseline_data/default_testssl.csvfile";
+my $socket_csv="tmp.csv";
+ my $check2run="-p -s -P --fs -h -U -c -q --ip=one --color 0 --csvfile $socket_csv";
+#my $check2run="-p --color 0 --csvfile $socket_csv";
+my $uri="testssl.sh";
+my $diff="";
+
+die "Unable to open $prg" unless -f $prg;
+die "Unable to open $master_socket_csv" unless -f $master_socket_csv;
+
+
+# Provide proper start conditions
+unlink "tmp.csv";
+
+# Title
+printf "\n%s\n", "Diff unit test IPv4 against \"$uri\"";
+
+#1 run
+`$prg $check2run $uri 2>&1`;
+
+
+$diff = diff $socket_csv, $master_socket_csv;
+
+$socket_csv=`cat tmp.csv`;
+$master_socket_csv=`cat $master_socket_csv`;
+
+# Filter, for now only HTTP_clock_skew
+$socket_csv=~ s/HTTP_clock_skew.*\n//g;
+$master_socket_csv=~ s/HTTP_clock_skew.*\n//g;
+
+# Compare and print the differences if there are some
+# Filtering takes place later, so if ther will be a difference detected
+# it'll also show HTTP_clock_skew
+#
+cmp_ok($socket_csv, "eq", $master_socket_csv, "Check whether CSV output matches master file from $uri") and
+     printf "\n%s\n", "$diff";
+
+$tests++;
+
+unlink "tmp.csv";
+
+done_testing($tests);
+printf "\n";
+
+
+#  vim:tw=95:ts=5:sw=5:et
+