1 files changed, 42 insertions, 0 deletions
diff --git a/test/tst-root.sh b/test/tst-root.sh
new file mode 100644
index 0000000..e31661e
--- /dev/null
+++ b/test/tst-root.sh
@@ -0,0 +1,42 @@
+if [ -z "${CI+y}" ] || [ "$EUID" -ne 0 ]; then
+    test_should_fail=y
+fi
+
+test_run() {
+    if [ -z "${CI+y}" ]; then
+        fail "Don't run this test locally, it'll mess up your /"
+        return 1
+    fi
+    if [ "$EUID" -ne 0 ]; then
+        fail "This test requires root privileges"
+        return 1
+    fi
+
+    test_root_dir="$( mktemp -d )"
+    # mktemp returns /var/..., which is actually in /private/var/... on macOS.
+    test_root_dir="$( readlink -e -- "$test_root_dir" )"
+
+    test_src_dir="$test_root_dir/src"
+
+    mkdir -p -- "$test_src_dir/%CONFIG_LINKS_ROOT%/foo"
+    mkdir /foo
+    chmod 0777 /foo
+    touch -- "$test_src_dir/%CONFIG_LINKS_ROOT%/foo/bar.txt"
+
+    test_run_update
+
+    log "Checking /foo/bar.txt..."
+
+    local actual
+    actual="$( readlink -e -- "/foo/bar.txt" )"
+
+    local expected
+    expected="$test_src_dir/%CONFIG_LINKS_ROOT%/foo/bar.txt"
+
+    if [ "$actual" != "$expected" ]; then
+        fail "There was a problem with symlink /foo/bar.txt:"
+        fail_details "Expected target: $expected"
+        fail_details "Actual target: $actual"
+        return 1
+    fi
+}