new file mode 100644
--- /dev/null
+++ b/proxy_cache_max_range_offset.t
@@ -0,0 +1,119 @@
+#!/usr/bin/perl
+
+# (C) Sergey Kandaurov
+# (C) Nginx, Inc.
+
+# Tests for http proxy cache, proxy_cache_max_range_offset directive.
+
+###############################################################################
+
+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;
+
+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  levels=1:2
+                       keys_zone=NAME:1m;
+
+    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 200 1m;
+            proxy_cache_max_range_offset 2;
+        }
+
+        location /zero/ {
+            proxy_pass    http://127.0.0.1:8081/;
+            proxy_cache   NAME;
+            proxy_cache_valid 200 1m;
+            proxy_cache_max_range_offset 0;
+        }
+
+        location /min_uses/ {
+            proxy_pass    http://127.0.0.1:8081/;
+            proxy_cache   NAME;
+            proxy_cache_valid 200 1m;
+            proxy_cache_max_range_offset 2;
+            proxy_cache_min_uses 2;
+        }
+    }
+
+    server {
+        listen       127.0.0.1:8081;
+        server_name  localhost;
+
+        location / {
+            add_header X-Range $http_range;
+        }
+    }
+}
+
+EOF
+
+$t->write_file('t.html', 'SEE-THIS');
+$t->try_run('no proxy_cache_max_range_offset')->plan(8);
+
+###############################################################################
+
+unlike(get('/t.html?1', 'bytes=1-'), qr/X-Range/, 'range - below');
+like(get('/t.html?2', 'bytes=3-'), qr/X-Range/, 'range - above');
+like(get('/t.html?3', 'bytes=-1'), qr/X-Range/, 'range - last');
+
+TODO: {
+local $TODO = 'not yet';
+
+like(get('/t.html?4', 'bytes=1-1,3-'), qr/X-Range/, 'range - multipart above');
+
+}
+
+like(get('/zero/t.html?5', 'bytes=0-0'), qr/X-Range/, 'always non-cacheable');
+like(get('/min_uses/t.html?6', 'bytes=1-'), qr/X-Range/, 'below min_uses');
+
+# no range in client request
+
+like(http_get('/t.html'), qr/SEE-THIS/, 'no range');
+
+$t->write_file('t.html', 'NOOP');
+like(http_get('/t.html'), qr/SEE-THIS/, 'no range - cached');
+
+###############################################################################
+
+sub get {
+	my ($url, $extra) = @_;
+	return http(<<EOF);
+GET $url HTTP/1.1
+Host: localhost
+Connection: close
+Range: $extra
+
+EOF
+}
+
+###############################################################################