new file mode 100644
--- /dev/null
+++ b/proxy_cache_manager.t
@@ -0,0 +1,86 @@
+#!/usr/bin/perl
+
+# (C) Sergey Kandaurov
+# (C) Nginx, Inc.
+
+# Tests for http proxy cache, manager parameters.
+
+###############################################################################
+
+use warnings;
+use strict;
+
+use Test::More;
+
+BEGIN { use FindBin; chdir($FindBin::Bin); }
+
+use lib 'lib';
+use Test::Nginx;
+
+###############################################################################
+
+select STDERR; $| = 1;
+select STDOUT; $| = 1;
+
+plan(skip_all => 'long test') unless $ENV{TEST_NGINX_UNSAFE};
+
+my $t = Test::Nginx->new()->has(qw/http proxy cache/)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    proxy_cache_path   %%TESTDIR%%/cache  max_size=0  keys_zone=NAME:1m
+                       manager_sleep=5  manager_files=2  manager_threshold=10;
+
+    server {
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        location / {
+            proxy_pass    http://127.0.0.1:8081;
+            proxy_cache   NAME;
+
+            proxy_cache_valid   any   1m;
+        }
+    }
+
+    server {
+        listen       127.0.0.1:8081;
+        server_name  localhost;
+
+        location / { }
+    }
+}
+
+EOF
+
+$t->write_file('t.html', 'SEE-THIS');
+$t->try_run('no manager params')->plan(2);
+
+###############################################################################
+
+http_get("/t.html?$_") for (1 .. 5);
+
+# wait for cache manager
+
+sleep 11;
+
+opendir(my $dh, $t->testdir() . '/cache');
+my $files = grep { ! /^\./ } readdir($dh);
+is($files, 3, 'manager files');
+
+sleep 5;
+
+opendir($dh, $t->testdir() . '/cache');
+$files = grep { ! /^\./ } readdir($dh);
+is($files, 1, 'manager sleep');
+
+###############################################################################