new file mode 100644
--- /dev/null
+++ b/t/gunzip-memcached.t
@@ -0,0 +1,87 @@
+#!/usr/bin/perl
+
+# (C) Maxim Dounin
+
+# Tests for gunzip filter module with memcached.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx qw/ :DEFAULT :gzip /;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+eval { require Cache::Memcached; };
+plan(skip_all => 'Cache::Memcached not installed') if $@;
+
+eval { require IO::Compress::Gzip; };
+plan(skip_all => "IO::Compress::Gzip not found") if $@;
+
+my $t = Test::Nginx->new()->has(qw/http memcached/)->has_daemon('memcached')
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+master_process off;
+daemon         off;
+
+events {
+}
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    server {
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        gunzip on;
+
+        location / {
+            set $memcached_key $uri;
+            memcached_pass 127.0.0.1:8081;
+            memcached_gzip_flag 2;
+        }
+    }
+}
+
+EOF
+
+$t->run_daemon('memcached', '-l', '127.0.0.1', '-p', '8081');
+
+eval {
+	open OLDERR, ">&", \*STDERR; close STDERR;
+	$t->run();
+	open STDERR, ">&", \*OLDERR;
+};
+plan(skip_all => 'no memcached_gzip_flag') if $@;
+
+$t->plan(2);
+
+$t->waitforsocket('127.0.0.1:8081')
+	or die "Can't start memcached";
+
+# Put compressed value into memcached.  This requires compress_threshold to be
+# set and compressed value to be at least 20% less than original one.
+
+my $memd = Cache::Memcached->new(servers => [ '127.0.0.1:8081' ],
+	compress_threshold => 1);
+$memd->set('/', 'TEST' x 10)
+        or die "can't put value into memcached: $!";
+
+###############################################################################
+
+http_gzip_like(http_gzip_request('/'), qr/TEST/, 'memcached response gzipped');
+like(http_get('/'), qr/TEST/, 'memcached response gunzipped');
+
+###############################################################################