Make chgrp and chown tests work on Android.

There's no /etc/passwd and /etc/group, but there are enough users and
groups that we can test with. ("bin" and "daemon" were added for LTP;
"shell" is what you get with `adb shell`.)

1 files changed, 7 insertions, 3 deletions

diff --git a/tests/chgrp.test b/tests/chgrp.test
index 65820361..5c7e4258 100755
--- a/tests/chgrp.test
+++ b/tests/chgrp.test
@@ -9,9 +9,13 @@ then
   exit
 fi
 
-# We chgrp between "root" and the last group in /etc/group.
-
-GRP="$(sed -n '$s/:.*//p' /etc/group)"
+if [ -f /etc/group ]; then
+  # We chgrp between "root" and the last group in /etc/group.
+  GRP="$(sed -n '$s/:.*//p' /etc/group)"
+else
+  # Or assume we're on Android and pick a well-known group.
+  GRP=shell
+fi
 
 # Set up a little testing hierarchy