WIP: Unshare/Chroot test wrapper script

test/run.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+set -eux
+
+TEST_DIR=$(dirname "$0")
+TESTS_ROOT="${TEST_DIR}/test_root"
+
+cp "${TEST_DIR}/testwrapper.sh" "${TESTS_ROOT}/usr/local/bin/"
+
+unshare \
+    --user --map-root-user \
+    --fork --pid --mount-proc \
+    --mount \
+    --mount-proc \
+    chroot "$TESTS_ROOT" /usr/local/bin/testwrapper.sh "$@"

test/testwrapper.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -eux
+
+export PATH=/sbin:/bin
+
+mount -t proc none /proc
+
+exec "$@"