1 files changed, 22 insertions, 0 deletions

diff --git a/testsuite/tar.tests b/testsuite/tar.tests
index 0f2e89112..d2155add7 100755
--- a/testsuite/tar.tests
+++ b/testsuite/tar.tests
@@ -245,6 +245,28 @@ SKIP=
 cd .. || exit 1; rm -rf tar.tempdir 2>/dev/null
 
 mkdir tar.tempdir && cd tar.tempdir || exit 1
+# Do we detect ZSTD-compressed data (even w/o .tar.zst extension)?
+# (uuencoded hello_world.tar.zst contains one empty file named "hello_world")
+# Currently we require an external unzstd program to be available.
+optional UUDECODE FEATURE_TAR_AUTODETECT FEATURE_SEAMLESS_ZSTD
+command -v unzstd >/dev/null || SKIP=1
+testing "tar extract tar.zst" "\
+uudecode -o input && tar tf input && echo Ok
+" "\
+hello_world
+Ok
+" \
+"" "\
+begin-base64 644 hello_world.tar.zst
+KLUv/QRYpQIA5ANoZWxsb193b3JsZAAwMDAwNjQ0ADAwMDE3NTAAMTUxNjA0
+NTQwMzAAMDExNDc3ACAwAHVzdGFyICAAcm15AAcAtAbwMBQOAJMCkBq8wApX
+awJ0ak0T/A==
+====
+"
+SKIP=
+cd .. || exit 1; rm -rf tar.tempdir 2>/dev/null
+
+mkdir tar.tempdir && cd tar.tempdir || exit 1
 # On extract, everything up to and including last ".." component is stripped
 optional FEATURE_TAR_CREATE
 testing "tar strips /../ on extract" "\