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-rw-r--r--t/imapd.t29
1 files changed, 27 insertions, 2 deletions
diff --git a/t/imapd.t b/t/imapd.t
index cf327e9f..1ac6a4ab 100644
--- a/t/imapd.t
+++ b/t/imapd.t
@@ -468,7 +468,7 @@ SKIP: {
         my $obj = bless \$cb, 'PublicInbox::TestCommon::InboxWakeup';
         $cfg->each_inbox(sub { $_[0]->subscribe_unlock('ident', $obj) });
         my $watcherr = "$tmpdir/watcherr";
-        open my $err_wr, '>', $watcherr or BAIL_OUT $!;
+        open my $err_wr, '>>', $watcherr or BAIL_OUT $!;
         open my $err, '<', $watcherr or BAIL_OUT $!;
         my $w = start_script(['-watch'], undef, { 2 => $err_wr });
 
@@ -512,11 +512,36 @@ SKIP: {
         seek($err, 0, 0);
         my @err = grep(!/^I:/, <$err>);
         is(@err, 0, 'no warnings/errors from -watch'.join(' ', @err));
+
+        if ($ENV{TEST_KILL_IMAPD}) { # not sure how reliable this test can be
+                xsys(qw(git config), "--file=$home/.public-inbox/config",
+                        qw(--unset imap.PollInterval)) == 0
+                        or BAIL_OUT "git config $?";
+                truncate($err_wr, 0) or BAIL_OUT $!;
+                my @t0 = times;
+                $w = start_script(['-watch'], undef, { 2 => $err_wr });
+                seek($err, 0, 0);
+                tick until (grep(/I: \S+ idling/, <$err>));
+                diag 'killing imapd, waiting for CPU spins';
+                my $delay = 0.11;
+                $td->kill(9);
+                tick $delay;
+                $w->kill;
+                $w->join;
+                is($?, 0, 'no error in exited -watch process');
+                my @t1 = times;
+                my $c = $t1[2] + $t1[3] - $t0[2] - $t0[3];
+                my $thresh = (0.9 * $delay);
+                diag "c=$c, threshold=$thresh";
+                ok($c < $thresh, 'did not burn much CPU');
+                is_deeply([grep(/ line \d+$/m, <$err>)], [],
+                                'no backtraces from errors');
+        }
 }
 
 $td->kill;
 $td->join;
-is($?, 0, 'no error in exited process');
+is($?, 0, 'no error in exited process') if !$ENV{TEST_KILL_IMAPD};
 open my $fh, '<', $err or BAIL_OUT("open $err failed: $!");
 my $eout = do { local $/; <$fh> };
 unlike($eout, qr/wide/i, 'no Wide character warnings');