Add a simplistic integration and regression test

This test basically consists of the Canterbury Corpus which is turned
into a SquashFS image using every supported compressor, with every
supported block size, with and without tail end packing.

The results MUST have an exact, given sha512sum. If that changes, it
means either a regression in the output format, something broke or
non-deterministic packing behaviour.

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 46 insertions, 0 deletions

diff --git a/tests/cantrbry.sh.in b/tests/cantrbry.sh.in
new file mode 100755
index 0000000..c8ba917
--- /dev/null
+++ b/tests/cantrbry.sh.in
@@ -0,0 +1,46 @@
+#!/bin/sh
+
+set -e
+
+CORPUS="@abs_top_srcdir@/tests/corpus/cantrbry.tar.xz"
+SHA512FILE="@abs_top_srcdir@/tests/corpus/cantrbry.sha512"
+TAR2SQFS="@abs_top_builddir@/tar2sqfs"
+
+COMPRESSORS=$(@abs_top_builddir@/tar2sqfs --help |\
+	      sed -ne '/^Available compressors:$/{:a' -e 'n;p;ba' -e '}' |\
+	      sed -n '/\t/p')
+
+for size in 4096 8192 16384 32768 65536 131072 262144 524288 1048576; do
+	for cmp in $COMPRESSORS; do
+		for threads in 1 2 3 4; do
+			name="cantrbry_${cmp}_${size}_${threads}.sqfs"
+
+			xzcat "$CORPUS" | \
+				"$TAR2SQFS" -q -c "$cmp" -b "$size" \
+					    -j "$threads" "$name"
+
+			name="cantrbry_${cmp}_${size}_${threads}_T.sqfs"
+
+			xzcat "$CORPUS" | \
+				"$TAR2SQFS" -qT -c "$cmp" -b "$size" \
+					    -j "$threads" "$name"
+		done
+
+		# check that the ones with > 1 thread are identical,
+		# then remove them.
+		for threads in 2 3 4; do
+			name="cantrbry_${cmp}_${size}_${threads}.sqfs"
+			ref="cantrbry_${cmp}_${size}_1.sqfs"
+			diff "$name" "$ref"
+			rm "$name"
+
+			name="cantrbry_${cmp}_${size}_${threads}_T.sqfs"
+			ref="cantrbry_${cmp}_${size}_1_T.sqfs"
+			diff "$name" "$ref"
+			rm "$name"
+		done
+	done
+done
+
+sha512sum --ignore-missing -c "$SHA512FILE"
+rm cantrbry_*.sqfs