t/lei-auto-watch: improve test reliability

On slower systems, even a 100ms delay may not be enough;
so loop and retry in hopes of an early exit for faster
systems.

1 files changed, 8 insertions, 5 deletions

diff --git a/t/lei-auto-watch.t b/t/lei-auto-watch.t
index 146402a6..3b0c1b10 100644
--- a/t/lei-auto-watch.t
+++ b/t/lei-auto-watch.t
@@ -4,9 +4,8 @@
 use strict; use v5.10.1; use PublicInbox::TestCommon;
 use File::Basename qw(basename);
 my ($ro_home, $cfg_path) = setup_public_inboxes;
-my $tick = 2.1;
-my $have_fast_inotify = eval { require Linux::Inotify2; $tick = 0.1 } ||
-        eval { require IO::KQueue; $tick = 0.5 };
+my $have_fast_inotify = eval { require Linux::Inotify2 } ||
+        eval { require IO::KQueue };
 
 $have_fast_inotify or
         diag("$0 IO::KQueue or Linux::Inotify2 missing, test will be slow");
@@ -31,9 +30,13 @@ test_lei(sub {
         lei_ok qw(add-watch), $x;
         my $dst = $x[0] . 'S';
         rename($x[0], $dst) or xbail "rename($x[0], $dst): $!";
-        tick($tick); # wait for inotify or kevent
+        my $ys = "$y[0]S";
+        for (0..50) {
+                last if -f $ys;
+                tick; # wait for inotify or kevent
+        }
         my @y2 = glob("$y/*/*");
-        is_deeply(\@y2, [ "$y[0]S" ], "`seen' kw propagated to `y' dir");
+        is_deeply(\@y2, [ $ys ], "`seen' kw propagated to `y' dir");
         lei_ok qw(note-event done);
         lei_ok qw(inspect), "blob:$oid";
         $ins = json_utf8->decode($lei_out);