new file mode 100644
--- /dev/null
+++ b/stream_unix.t
@@ -0,0 +1,111 @@
+#!/usr/bin/perl
+
+# (C) Andrey Zelenkov
+# (C) Nginx, Inc.
+
+# Simple tests for stream with unix socket.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+use Test::Nginx::Stream qw/ stream /;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+eval { require IO::Socket::UNIX; };
+plan(skip_all => 'IO::Socket::UNIX not installed') if $@;
+
+my $t = Test::Nginx->new()->has(qw/stream unix/)->plan(2);
+
+$t->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+stream {
+    upstream u {
+        server unix:%%TESTDIR%%/unix.sock;
+    }
+
+    server {
+        listen       127.0.0.1:8080;
+        proxy_pass   unix:%%TESTDIR%%/unix.sock;
+    }
+
+    server {
+        listen       127.0.0.1:8081;
+        proxy_pass   u;
+    }
+}
+
+EOF
+
+my $path = $t->testdir() . '/unix.sock';
+
+$t->run_daemon(\&stream_daemon, $path);
+$t->run();
+
+# wait for unix socket to appear
+
+for (1 .. 50) {
+	last if -S $path;
+	select undef, undef, undef, 0.1;
+}
+
+###############################################################################
+
+my $str = 'SEE-THIS';
+
+is(stream('127.0.0.1:8080')->io($str), $str, 'proxy');
+is(stream('127.0.0.1:8081')->io($str), $str, 'upstream');
+
+###############################################################################
+
+sub stream_daemon {
+	my $server = IO::Socket::UNIX->new(
+		Proto => 'tcp',
+		Local => shift,
+		Listen => 5,
+		Reuse => 1
+	)
+		or die "Can't create listening socket: $!\n";
+
+	local $SIG{PIPE} = 'IGNORE';
+
+	while (my $client = $server->accept()) {
+		$client->autoflush(1);
+
+		log2c("(new connection $client)");
+
+		$client->sysread(my $buffer, 65536) or next;
+
+		log2i("$client $buffer");
+
+		log2o("$client $buffer");
+
+		$client->syswrite($buffer);
+
+		close $client;
+	}
+}
+
+sub log2i { Test::Nginx::log_core('|| <<', @_); }
+sub log2o { Test::Nginx::log_core('|| >>', @_); }
+sub log2c { Test::Nginx::log_core('||', @_); }
+
+###############################################################################