From c9b8b3bc4a03ee5ff99d8314325d7c443f095eb0 Mon Sep 17 00:00:00 2001
From: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Date: Fri, 25 Jun 2021 16:25:15 +0200
Subject: Add a somewhat more extensive tar2sqfs test script

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
---
 configure.ac            |  1 +
 tests/tarcompress.sh.in | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 tests/tarcompress.sh.in

diff --git a/configure.ac b/configure.ac
index f11facf..765e057 100644
--- a/configure.ac
+++ b/configure.ac
@@ -298,6 +298,7 @@ AC_CONFIG_FILES([Doxyfile])
 AC_CONFIG_FILES([tests/cantrbry.sh], [chmod +x tests/cantrbry.sh])
 AC_CONFIG_FILES([tests/test_tar_sqfs.sh], [chmod +x tests/test_tar_sqfs.sh])
 AC_CONFIG_FILES([tests/pack_dir_root.sh], [chmod +x tests/pack_dir_root.sh])
+AC_CONFIG_FILES([tests/tarcompress.sh], [chmod +x tests/tarcompress.sh])
 
 AC_OUTPUT([Makefile])
 
diff --git a/tests/tarcompress.sh.in b/tests/tarcompress.sh.in
new file mode 100644
index 0000000..99075a2
--- /dev/null
+++ b/tests/tarcompress.sh.in
@@ -0,0 +1,48 @@
+#!/bin/sh
+
+set -e
+
+TAR2SQFS="@abs_top_builddir@/tar2sqfs"
+RDSQFS="@abs_top_builddir@/rdsquashfs"
+
+URL="https://mirrors.edge.kernel.org/pub/linux/kernel/v3.x/"
+DIR="/dev/shm/tarcompress/"
+
+mkdir -p "$DIR"
+curl "$URL/linux-3.11.tar.bz2" > "$DIR/linux-3.11.tar.bz2"
+curl "$URL/linux-3.11.tar.gz" > "$DIR/linux-3.11.tar.gz"
+curl "$URL/linux-3.11.tar.xz" > "$DIR/linux-3.11.tar.xz"
+
+sha256sum -c <<_EOF
+e7ae11d20aafdc5a2dfd104f198d87e5ce65fa8ada1ce18a263e89ff0148e1fa  $DIR/linux-3.11.tar.bz2
+59904beb1fdae62eb1991f29926c234283c9e4009b6e437499f13d2749bed6ca  $DIR/linux-3.11.tar.gz
+803ec8f0ad4b2ddedcb0332a590cd2b5e10dfc57c3b1c95bc9c46af81d51d7f9  $DIR/linux-3.11.tar.xz
+_EOF
+
+"$TAR2SQFS" "$DIR/out1.sqfs" < "$DIR/linux-3.11.tar.bz2"
+"$TAR2SQFS" "$DIR/out2.sqfs" < "$DIR/linux-3.11.tar.gz"
+"$TAR2SQFS" "$DIR/out3.sqfs" < "$DIR/linux-3.11.tar.xz"
+
+# set -e makes sure this explodes if they aren't equal
+diff "$DIR/out1.sqfs" "$DIR/out2.sqfs"
+diff "$DIR/out2.sqfs" "$DIR/out3.sqfs"
+
+rm "$DIR/out2.sqfs" "$DIR/out3.sqfs"
+rm "$DIR/linux-3.11.tar.bz2"
+rm "$DIR/linux-3.11.tar.gz"
+
+# every file that exists in the tar ball MUST exist in the squashfs image
+# and they MUST be identical
+tar -C "$DIR" -xf "$DIR/linux-3.11.tar.xz"
+
+find "$DIR/linux-3.11" -type f | sed "s#$DIR/##" | \
+while read fname; do
+	"$RDSQFS" -c "$fname" "$DIR/out1.sqfs" > "$DIR/temp"
+
+	diff "$DIR/$fname" "$DIR/temp"
+done
+
+# cleanup
+rm "$DIR/temp" "$DIR/out1.sqfs" "$DIR/linux-3.11.tar.xz"
+rm --one-file-system -rf "$DIR/linux-3.11"
+rmdir "$DIR"
-- 
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