new file mode 100644
--- /dev/null
+++ b/js_variables.t
@@ -0,0 +1,107 @@
+#!/usr/bin/perl
+
+# (C) Dmitry Volyntsev
+# (C) Nginx, Inc.
+
+# Tests for http njs module, setting nginx variables.
+
+###############################################################################
+
+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/)
+	->write_file_expand('nginx.conf', <<'EOF');
+
+%%TEST_GLOBALS%%
+
+daemon off;
+
+events {
+}
+
+http {
+    %%TEST_GLOBALS_HTTP%%
+
+    js_set $test_var   test_var;
+
+    js_include test.js;
+
+    server {
+        listen       127.0.0.1:8080;
+        server_name  localhost;
+
+        set $foo       foo_orig;
+
+        location /njs {
+            js_content test_njs;
+        }
+
+        location /var_set {
+            return 200 $test_var$foo;
+        }
+
+        location /content_set {
+            js_content content_set;
+        }
+
+        location /not_found_set {
+            js_content not_found_set;
+        }
+    }
+}
+
+EOF
+
+$t->write_file('test.js', <<EOF);
+    function test_njs(r) {
+        r.return(200, njs.version);
+    }
+
+    function test_var(r) {
+        r.variables.foo = r.variables.arg_a;
+        return 'test_var';
+    }
+
+    function content_set(r) {
+        r.variables.foo = r.variables.arg_a;
+        r.return(200, r.variables.foo);
+    }
+
+    function not_found_set(r) {
+        try {
+            r.variables.unknown = 1;
+        } catch (e) {
+            r.return(500, e);
+        }
+    }
+
+EOF
+
+$t->try_run('no njs')->plan(3);
+
+###############################################################################
+
+TODO: {
+local $TODO = 'not yet'
+		unless http_get('/njs') =~ /^([.0-9]+)$/m && $1 ge '0.2.8';
+
+like(http_get('/var_set?a=bar'), qr/test_varbar/, 'var set');
+like(http_get('/content_set?a=bar'), qr/bar/, 'content set');
+like(http_get('/not_found_set'), qr/variable not found/, 'not found exception');
+
+}
+
+###############################################################################