Rework tests

Split along multiple files, produce TAP output, rely on Perl's prove for
running them. Improves clarity and hopefully makes it easier to add new
tests in the future.

t/0000-RFC-4226-Test-Vectors.t

@@ -0,0 +1,24 @@
+#!/bin/sh
+[ -n "${0%/*}" ] && cd "${0%/*}"
+. ./lib.sh
+
+if [ ! -x ../otpcli ]; then
+	plan 0 "skip: build otpcli first"
+	exit 1
+fi
+
+# base32("12345678901234567890")
+key=GEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQ
+
+plan 10
+
+check "counter 0" 755224 ../otpcli -H 0 "$key"
+check "counter 1" 287082 ../otpcli -H 1 "$key"
+check "counter 2" 359152 ../otpcli -H 2 "$key"
+check "counter 3" 969429 ../otpcli -H 3 "$key"
+check "counter 4" 338314 ../otpcli -H 4 "$key"
+check "counter 5" 254676 ../otpcli -H 5 "$key"
+check "counter 6" 287922 ../otpcli -H 6 "$key"
+check "counter 7" 162583 ../otpcli -H 7 "$key"
+check "counter 8" 399871 ../otpcli -H 8 "$key"
+check "counter 9" 520489 ../otpcli -H 9 "$key"

t/0001-RFC-6238-SHA-1-Test-Vectors.t

@@ -0,0 +1,20 @@
+#!/bin/sh
+[ -n "${0%/*}" ] && cd "${0%/*}"
+. ./lib.sh
+
+if [ ! -x ../otpcli ]; then
+	plan 0 "skip: build otpcli first"
+	exit 1
+fi
+
+plan 6
+
+# base32("12345678901234567890")
+key=GEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQ
+
+check "time 59" 94287082 ../otpcli -d 8 -a sha1 -T 59 "$key"
+check "time 1111111109" 07081804 ../otpcli -d 8 -a sha1 -T 1111111109 "$key"
+check "time 1111111111" 14050471 ../otpcli -d 8 -a sha1 -T 1111111111 "$key"
+check "time 1234567890" 89005924 ../otpcli -d 8 -a sha1 -T 1234567890 "$key"
+check "time 2000000000" 69279037 ../otpcli -d 8 -a sha1 -T 2000000000 "$key"
+check "time 20000000000" 65353130 ../otpcli -d 8 -a sha1 -T 20000000000 "$key"

t/0002-RFC-6238-SHA-256-Test-Vectors.t

@@ -0,0 +1,20 @@
+#!/bin/sh
+[ -n "${0%/*}" ] && cd "${0%/*}"
+. ./lib.sh
+
+if [ ! -x ../otpcli ]; then
+	plan 0 "skip: build otpcli first"
+	exit 1
+fi
+
+plan 6
+
+# base32("12345678901234567890123456789012")
+key=GEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQGEZA
+
+check "time 59" 46119246 ../otpcli -d 8 -a sha256 -T 59 "$key"
+check "time 1111111109" 68084774 ../otpcli -d 8 -a sha256 -T 1111111109 "$key"
+check "time 1111111111" 67062674 ../otpcli -d 8 -a sha256 -T 1111111111 "$key"
+check "time 1234567890" 91819424 ../otpcli -d 8 -a sha256 -T 1234567890 "$key"
+check "time 2000000000" 90698825 ../otpcli -d 8 -a sha256 -T 2000000000 "$key"
+check "time 20000000000" 77737706 ../otpcli -d 8 -a sha256 -T 20000000000 "$key"

t/0003-RFC-6238-SHA-512-Test-Vectors.t

@@ -0,0 +1,20 @@
+#!/bin/sh
+[ -n "${0%/*}" ] && cd "${0%/*}"
+. ./lib.sh
+
+if [ ! -x ../otpcli ]; then
+	plan 0 "skip: build otpcli first"
+	exit 1
+fi
+
+plan 6
+
+# base32("1234567890123456789012345678901234567890123456789012345678901234")
+key=GEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQGEZDGNA
+
+check "time 59" 90693936 ../otpcli -d 8 -a sha512 -T 59 "$key"
+check "time 1111111109" 25091201 ../otpcli -d 8 -a sha512 -T 1111111109 "$key"
+check "time 1111111111" 99943326 ../otpcli -d 8 -a sha512 -T 1111111111 "$key"
+check "time 1234567890" 93441116 ../otpcli -d 8 -a sha512 -T 1234567890 "$key"
+check "time 2000000000" 38618901 ../otpcli -d 8 -a sha512 -T 2000000000 "$key"
+check "time 20000000000" 47863826 ../otpcli -d 8 -a sha512 -T 20000000000 "$key"

t/lib.sh

@@ -0,0 +1,52 @@
+#!/bin/sh
+# otpcli - command-line interface for HOTP and TOTP
+#
+# Written in 2021 by Lucas
+#
+# To the extent possible under law, the author(s) have dedicated all
+# copyright and related and neighboring rights to this software to the
+# public domain worldwide. This software is distributed without any
+# warranty.
+#
+# You should have received a copy of the CC0 Public Domain Dedication
+# along with this software. If not, see
+# <http://creativecommons.org/publicdomain/zero/1.0/>.
+
+# Produces TAP (Test Anything Protocol) output
+
+# plan number_of_tests [directive]
+plan()
+{
+	_n=$1
+	shift
+
+	if [ -n "$*" ]; then
+		printf "1..%u # %s\n" "$_n" "$*"
+	else
+		printf "1..%u\n" "$_n"
+	fi
+
+	_counter=1
+}
+
+# check description expected command [args...]
+check()
+{
+	_description=$1 _expected=$2
+	shift 2
+	_got=$("${@:-:}")
+
+	_rc=0
+	if [ "$_got" != "$_expected" ]; then
+		printf "not ok %u - %s\n" "$_counter" "$_description"
+		printf "    #   Failed test at %s.\n" "$0"
+		printf "    #          got: '%s'\n" "$_got"
+		printf "    #     expected: '%s'\n" "$_expected"
+		_rc=1
+	else
+		printf "ok %u - %s\n" "$_counter" "$_description"
+	fi
+
+	_counter=$(($_counter + 1))
+	return $_rc
+}