From f022121436164d6ac4ea7f9f2c75dc39c63914cd Mon Sep 17 00:00:00 2001
From: emma <emma@tebibyte.media>
Date: Sat, 27 Apr 2024 15:16:52 -0600
Subject: [PATCH] tests: posix: cat(1p): added POSIX-compliant cat

---
 tests/posix/bin/cat                | 22 ++++++++++++++++++++++
 tests/posix/{true.sh => bin/false} |  5 ++---
 tests/posix/{false.sh => bin/true} |  6 ++----
 tests/test.sh                      |  5 +++--
 4 files changed, 29 insertions(+), 9 deletions(-)
 create mode 100755 tests/posix/bin/cat
 rename tests/posix/{true.sh => bin/false} (83%)
 rename tests/posix/{false.sh => bin/true} (83%)

diff --git a/tests/posix/bin/cat b/tests/posix/bin/cat
new file mode 100755
index 0000000..e123d7c
--- /dev/null
+++ b/tests/posix/bin/cat
@@ -0,0 +1,22 @@
+#!/bin/sh
+# Copyright (c) 2024 Emma Tebibyte <emma@tebibyte.media>
+# SPDX-License-Identifier: FSFAP
+#
+# Copying and distribution of this file, with or without modification, are
+# permitted in any medium without royalty provided the copyright notice and this
+# notice are preserved.  This file is offered as-is, without any warranty.
+
+# Strictly POSIX-compliant cat(1) implementation. See cat(1p)
+
+for arg in "$@"; do
+	case "$arg" in
+		-u) args="$(printf '%s	%s\n' "$args" "$arg")" ;;
+		*) args="$(printf -- '%s	-i	%s\n' "$args" "$arg")" ;;
+	esac
+done
+
+# See IEEE Std 1003.1-2017 3.282
+# https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282
+IFS='	'
+
+mm $args
diff --git a/tests/posix/true.sh b/tests/posix/bin/false
similarity index 83%
rename from tests/posix/true.sh
rename to tests/posix/bin/false
index a7872fb..62a10c9 100755
--- a/tests/posix/true.sh
+++ b/tests/posix/bin/false
@@ -7,7 +7,6 @@
 # permitted in any medium without royalty provided the copyright notice and this
 # notice are preserved.  This file is offered as-is, without any warranty.
 
-alias true="$BIN/true"
+# Strictly POSIX-compliant false(1) implementation. See false(1p)
 
-true
-true -h
+false "$@"
diff --git a/tests/posix/false.sh b/tests/posix/bin/true
similarity index 83%
rename from tests/posix/false.sh
rename to tests/posix/bin/true
index 100b6c1..aed1b86 100755
--- a/tests/posix/false.sh
+++ b/tests/posix/bin/true
@@ -7,7 +7,5 @@
 # permitted in any medium without royalty provided the copyright notice and this
 # notice are preserved.  This file is offered as-is, without any warranty.
 
-alias false="$BIN/false"
-
-! false
-! false -h
+# Strictly POSIX-compliant true(1) implementation. See true(1p)
+true "$@"
diff --git a/tests/test.sh b/tests/test.sh
index de03aa6..7db6d61 100755
--- a/tests/test.sh
+++ b/tests/test.sh
@@ -30,8 +30,9 @@ done
 
 printf "Starting POSIX compatibility testing.\n\n"
 
-for utility in tests/posix/*; do
-	printf '%s: %s: Testing utility.\n' "$0" "$utility"
+for test in tests/posix/*.sh; do
+	export PATH="build/bin:$PATH"
+	printf '%s: %s: Testing utility.\n' "$0" "$test"
 	"$utility"
 	printf '\n'
 done