1 files changed, 35 insertions, 1 deletions

diff --git a/t/spawn.t b/t/spawn.t
index ed9b5b08..d52b6465 100644
--- a/t/spawn.t
+++ b/t/spawn.t
@@ -3,7 +3,7 @@
 use strict;
 use warnings;
 use Test::More;
-use PublicInbox::Spawn qw(which spawn);
+use PublicInbox::Spawn qw(which spawn popen_rd);
 
 {
         my $true = which('true');
@@ -48,6 +48,40 @@ use PublicInbox::Spawn qw(which spawn);
         is($?, 0, 'env(1) exited successfully');
 }
 
+{
+        my $fh = popen_rd([qw(echo hello)]);
+        ok(fileno($fh) >= 0, 'tied fileno works');
+        my $l = <$fh>;
+        is($l, "hello\n", 'tied readline works');
+        $l = <$fh>;
+        ok(!$l, 'tied readline works for EOF');
+}
+
+{
+        my $fh = popen_rd([qw(printf foo\nbar)]);
+        ok(fileno($fh) >= 0, 'tied fileno works');
+        my @line = <$fh>;
+        is_deeply(\@line, [ "foo\n", 'bar' ], 'wantarray works on readline');
+}
+
+{
+        my $fh = popen_rd([qw(echo hello)]);
+        my $buf;
+        is(sysread($fh, $buf, 6), 6, 'sysread got 6 bytes');
+        is($buf, "hello\n", 'tied gets works');
+        is(sysread($fh, $buf, 6), 0, 'sysread got EOF');
+}
+
+{
+        my ($fh, $pid) = popen_rd([qw(sleep 60)], undef, { Blocking => 0 });
+        ok(defined $pid && $pid > 0, 'returned pid when array requested');
+        is(kill(0, $pid), 1, 'child process is running');
+        ok(!defined(sysread($fh, my $buf, 1)) && $!{EAGAIN},
+           'sysread returned quickly with EAGAIN');
+        is(kill(15, $pid), 1, 'child process killed early');
+        is(waitpid($pid, 0), $pid, 'child process reapable');
+}
+
 done_testing();
 
 1;