[PATCH 2/2] tests: add tests for xz compressed snapshots

[list at eworm.de (Christian Hesse)]

From: Christian Hesse <mail at eworm.de>

Signed-off-by: Christian Hesse <mail at eworm.de>
---
 tests/setup.sh          |  2 +-
 tests/t0107-snapshot.sh | 42 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/tests/setup.sh b/tests/setup.sh
index e09f7c5..5879348 100755
--- a/tests/setup.sh
+++ b/tests/setup.sh
@@ -104,7 +104,7 @@ virtual-root=/
 cache-root=$PWD/cache
 
 cache-size=1021
-snapshots=tar.gz tar.bz tar.lz tar.zst zip
+snapshots=tar.gz tar.bz tar.lz tar.xz tar.zst zip
 enable-log-filecount=1
 enable-log-linecount=1
 summary-log=5
diff --git a/tests/t0107-snapshot.sh b/tests/t0107-snapshot.sh
index 95ad624..7e343d9 100755
--- a/tests/t0107-snapshot.sh
+++ b/tests/t0107-snapshot.sh
@@ -122,6 +122,48 @@ test_expect_success ZSTD 'verify untarred file-5' '
 	test_line_count = 1 master/file-5
 '
 
+if test -n "$(which xz 2>/dev/null)"; then
+	test_set_prereq XZ
+else
+	say 'Skipping XZ validation tests: xz not found'
+fi
+
+test_expect_success XZ 'get foo/snapshot/master.tar.xz' '
+	cgit_url "foo/snapshot/master.tar.xz" >tmp
+'
+
+test_expect_success XZ 'check html headers' '
+	head -n 1 tmp |
+	grep "Content-Type: application/x-xz" &&
+
+	head -n 2 tmp |
+	grep "Content-Disposition: inline; filename=.master.tar.xz."
+'
+
+test_expect_success XZ 'strip off the header lines' '
+	strip_headers <tmp >master.tar.xz
+'
+
+test_expect_success XZ 'verify xz format' '
+	xz --test master.tar.xz &&
+	cp master.tar.xz /tmp/.
+'
+
+test_expect_success XZ 'untar' '
+	rm -rf master &&
+	tar --xz -xf master.tar.xz
+'
+
+test_expect_success XZ 'count files' '
+	ls master/ >output &&
+	test_line_count = 5 output
+'
+
+test_expect_success XZ 'verify untarred file-5' '
+	grep "^5$" master/file-5 &&
+	test_line_count = 1 master/file-5
+'
+
 test_expect_success 'get foo/snapshot/master.zip' '
 	cgit_url "foo/snapshot/master.zip" >tmp
 '