test tmpfiles: add a test for 'w+'

2022-04-11 11:22:39 +02:00
parent 9af74e0f59
commit 9f55d48ba5
1 changed files with 11 additions and 1 deletions
@@ -186,6 +186,7 @@ test ! -e /tmp/F/daemon/unsafe-symlink/exploit
 # 'w'
 #
 touch /tmp/w/overwritten
+touch /tmp/w/appended

 ### nop if the target does not exist.
 systemd-tmpfiles --create - <<EOF
@@ -205,13 +206,22 @@ EOF
 test -f /tmp/w/overwritten
 test "$(< /tmp/w/overwritten)" = "old content"

-### new content is overwritten
+### old content is overwritten
 systemd-tmpfiles --create - <<EOF
 w     /tmp/w/overwritten    0644 - - - new content
 EOF
 test -f /tmp/w/overwritten
 test "$(< /tmp/w/overwritten)" = "new content"

+### append lines
+systemd-tmpfiles --create - <<EOF
+w+    /tmp/w/appended    0644 - - - 1
+w+    /tmp/w/appended    0644 - - - 2\n
+w+    /tmp/w/appended    0644 - - - 3
+EOF
+test -f /tmp/w/appended
+test "$(< /tmp/w/appended)" = "$(echo -ne '12\n3')"
+
 ### writing into an 'exotic' file should be allowed.
 systemd-tmpfiles --create - <<EOF
 w     /dev/null    - - - - new content