t/lei-watch: avoid race between glob + readlink

Open file handles in lei-daemon may be unstable so we need to
account for readlink() returning undef.

diff --git a/t/lei-watch.t b/t/lei-watch.t
index 86fa66493920d47c575335a4ede49ce7196f183d..a881fbb9c05ccb310cd09d657c9b3e210c9a17aa 100644 (file)
--- a/t/lei-watch.t
+++ b/t/lei-watch.t
@@ -25,7 +25,7 @@ test_lei(sub {
                lei_ok 'daemon-pid'; chomp(my $pid = $lei_out);
                skip 'missing /proc/$PID/fd', 1 if !-d "/proc/$pid/fd";
                my @ino = grep {
-                       readlink($_) =~ /\binotify\b/
+                       (readlink($_) // '') =~ /\binotify\b/
                } glob("/proc/$pid/fd/*");
                is(scalar(@ino), 1, 'only one inotify FD');
                my $ino_fd = (split('/', $ino[0]))[-1];