1 files changed, 33 insertions, 0 deletions
diff --git a/tests/custom-tmpdir b/tests/custom-tmpdir
new file mode 100644
index 0000000..bfd3651
--- /dev/null
+++ b/tests/custom-tmpdir
@@ -0,0 +1,33 @@
+#!/bin/sh
+set -eu
+export LC_ALL=C.UTF-8
+
+[ "$(id -u)" -eq 0 ]
+[ {{ MODE }} = "unshare" ]
+
+if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
+	if [ ! -e /mmdebstrap-testenv ]; then
+		echo "this test modifies the system and should only be run inside a container" >&2
+		exit 1
+	fi
+	useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
+fi
+prefix="runuser -u ${SUDO_USER:-user} --"
+
+# https://www.etalabs.net/sh_tricks.html
+quote () { printf %s\\n "$1" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/'/" ; }
+homedir=$($prefix sh -c 'cd && pwd')
+# apt:test/integration/test-apt-key
+TMPDIR_ADD="This is fü\$\$ing cràzy, \$(apt -v)\$!"
+$prefix mkdir "$homedir/$TMPDIR_ADD"
+# make sure the unshared user can traverse into the TMPDIR
+chmod 711 "$homedir"
+# set permissions and sticky bit like the real /tmp
+chmod 1777 "$homedir/$TMPDIR_ADD"
+$prefix env TMPDIR="$homedir/$TMPDIR_ADD" {{ CMD }} --mode={{ MODE }} --variant=apt \
+	--setup-hook='case "$1" in '"$(quote "$homedir/$TMPDIR_ADD/mmdebstrap.")"'??????????) exit 0;; *) echo "$1"; exit 1;; esac' \
+	 {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
+tar -tf /tmp/debian-chroot.tar | sort | diff -u tar1.txt -
+# use rmdir as a quick check that nothing is remaining in TMPDIR
+$prefix rmdir "$homedir/$TMPDIR_ADD"
+rm /tmp/debian-chroot.tar