new file mode 100644
--- /dev/null
+++ b/stream_proxy_complex.t
@@ -0,0 +1,79 @@
+#!/usr/bin/perl
+
+# (C) Sergey Kandaurov
+# (C) Nginx, Inc.
+
+# Tests for stream proxy module with complex value.
+
+###############################################################################
+
+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;
+
+my $t = Test::Nginx->new()->has(qw/stream stream_return/)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+stream {
+    upstream 8081 {
+        server 127.0.0.1:8091;
+    }
+
+    upstream 8082 {
+        server 127.0.0.1:8092;
+        server 127.0.0.1:8093;
+    }
+
+    server {
+        listen      127.0.0.1:8081;
+        listen      127.0.0.1:8082;
+        proxy_pass  $server_port;
+    }
+
+    server {
+        listen      127.0.0.1:8083;
+        proxy_pass  $server_addr:%%PORT_8093%%;
+    }
+
+    server {
+        listen      127.0.0.1:8091;
+        listen      127.0.0.1:8092;
+        listen      127.0.0.1:8093;
+        return      $server_port;
+    }
+}
+
+EOF
+
+$t->try_run('no stream proxy_pass with complex value')->plan(5);
+
+###############################################################################
+
+is(stream('127.0.0.1:' . port(8081))->io('foo'), port(8091), 'upstream');
+is(stream('127.0.0.1:' . port(8081))->io('foo'), port(8091), 'upstream again');
+
+is(stream('127.0.0.1:' . port(8082))->io('foo'), port(8092), 'upstream 2');
+is(stream('127.0.0.1:' . port(8082))->io('foo'), port(8093), 'upstream second');
+
+is(stream('127.0.0.1:' . port(8083))->io('foo'), port(8093), 'implicit');
+
+###############################################################################