new file mode 100644
--- /dev/null
+++ b/js.t
@@ -0,0 +1,206 @@
+#!/usr/bin/perl
+
+# (C) Roman Arutyunyan
+
+# Tests for http JavaScript module.
+
+###############################################################################
+
+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 rewrite js/)->plan(13)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    js_set $test_method  "'method=' + $r.method";
+    js_set $test_version "'version=' + $r.httpVersion";
+    js_set $test_addr    "'addr=' + $r.remoteAddress";
+    js_set $test_uri     "'uri=' + $r.uri";
+    js_set $test_hdr     "'hdr=' + $r.headers.foo";
+    js_set $test_ihdr    "var s;
+                          s = '';
+                          for (h in $r.headers) {
+                              if (h.substr(0, 3) == 'foo') {
+                                  s += $r.headers[h];
+                              }
+                          }
+                          s;";
+    js_set $test_arg     "'arg=' + $r.args.foo";
+    js_set $test_iarg    "var s;
+                          s = '';
+                          for (a in $r.args) {
+                              if (a.substr(0, 3) == 'foo') {
+                                  s += $r.args[a];
+                              }
+                          }
+                          s;";
+
+    server {
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        location /req_method {
+            return 200 $test_method;
+        }
+
+        location /req_version {
+            return 200 $test_version;
+        }
+
+        location /req_addr {
+            return 200 $test_addr;
+        }
+
+        location /req_uri {
+            return 200 $test_uri;
+        }
+
+        location /req_hdr {
+            return 200 $test_hdr;
+        }
+
+        location /req_ihdr {
+            return 200 $test_ihdr;
+        }
+
+        location /req_arg {
+            return 200 $test_arg;
+        }
+
+        location /req_iarg {
+            return 200 $test_iarg;
+        }
+
+        location /res_status {
+            js_run "
+                var res;
+                res = $r.response;
+                res.status = 204;
+                res.sendHeader();
+                res.finish();
+            ";
+        }
+
+        location /res_ctype {
+            js_run "
+                var res;
+                res = $r.response;
+                res.status = 200;
+                res.contentType = 'application/foo';
+                res.sendHeader();
+                res.finish();
+            ";
+        }
+
+        location /res_clen {
+            js_run "
+                var res;
+                res = $r.response;
+                res.status = 200;
+                res.contentLength = 5;
+                res.sendHeader();
+                res.send('foo12');
+                res.finish();
+            ";
+        }
+
+        location /res_send {
+            js_run "
+                var res, a, s;
+                res = $r.response;
+                res.status = 200;
+                res.sendHeader();
+                for (a in $r.args) {
+                    if (a.substr(0, 3) == 'foo') {
+                        s = $r.args[a];
+                        res.send('n=' + a + ', v=' + s.substr(0, 2) + ' ');
+                    }
+                }
+                res.finish();
+            ";
+        }
+
+        location /res_hdr {
+            js_run "
+                var res;
+                res = $r.response;
+                res.status = 200;
+                res.headers['Foo'] = $r.args.fOO;
+                res.sendHeader();
+                res.finish();
+            ";
+        }
+    }
+}
+
+EOF
+
+$t->run();
+
+###############################################################################
+
+like(http_get('/req_method'), qr/method=GET/, 'r.method');
+like(http_get('/req_version'), qr/version=1.0/, 'r.httpVersion');
+like(http_get('/req_addr'), qr/addr=127.0.0.1/, 'r.remoteAddress');
+like(http_get('/req_uri'), qr/uri=\/req_uri/, 'r.uri');
+like(http_get_hdr('/req_hdr'), qr/hdr=12345/, 'r.headers');
+like(http_get_ihdr('/req_ihdr'), qr/12345barz/, 'r.headers iteration');
+like(http_get('/req_arg?foO=12345'), qr/arg=12345/, 'r.args');
+like(http_get('/req_iarg?foo=12345&foo2=bar&nn=22&foo-3=z'), qr/12345barz/,
+	'r.args iteration');
+
+like(http_get('/res_status'), qr/204 No Content/, 'r.response.status');
+like(http_get('/res_ctype'), qr/Content-Type: application\/foo/,
+	'r.response.contentType');
+like(http_get('/res_clen'), qr/Content-Length: 5/, 'r.response.contentLength');
+like(http_get('/res_send?foo=12345&n=11&foo-2=bar&ndd=&foo-3=z'),
+	qr/n=foo, v=12 n=foo-2, v=ba n=foo-3, v=z/, 'r.response.send');
+like(http_get('/res_hdr?foo=12345'), qr/Foo: 12345/, 'r.response.headers');
+
+###############################################################################
+
+sub http_get_hdr {
+	my ($url, %extra) = @_;
+	return http(<<EOF, %extra);
+GET $url HTTP/1.0
+FoO: 12345
+
+EOF
+}
+
+sub http_get_ihdr {
+	my ($url, %extra) = @_;
+	return http(<<EOF, %extra);
+GET $url HTTP/1.0
+foo: 12345
+Host: localhost
+foo2: bar
+X-xxx: more
+foo-3: z
+
+EOF
+}
+
+###############################################################################