added tests for the nginx core bug regarding nginx variables under HUP reload: http://mailman.nginx.org/pipermail/nginx-devel/2012-May/002223.html

t/078-hup-vars.t

@@ -0,0 +1,58 @@
+# vim:set ft= ts=4 sw=4 et fdm=marker:
+
+BEGIN {
+    $ENV{TEST_NGINX_USE_HUP} = 1;
+}
+
+use lib 'lib';
+use Test::Nginx::Socket;
+
+#worker_connections(1014);
+#master_on();
+#workers(2);
+log_level('debug');
+
+repeat_each(2);
+
+plan tests => repeat_each() * (3 * blocks());
+
+#no_diff();
+#no_long_string();
+no_shuffle();
+
+run_tests();
+
+__DATA__
+
+=== TEST 1: nginx variable hup bug (step 1)
+http://mailman.nginx.org/pipermail/nginx-devel/2012-May/002223.html
+--- config
+    location /t {
+        set $vv $http_host;
+        set_by_lua $i 'return ngx.var.http_host';
+        echo $i;
+    }
+--- request
+GET /t
+--- response_body
+localhost
+--- no_error_log
+[error]
+
+
+
+=== TEST 2: nginx variable hup bug (step 2)
+http://mailman.nginx.org/pipermail/nginx-devel/2012-May/002223.html
+--- config
+    location /t {
+        #set $vv $http_host;
+        set_by_lua $i 'return ngx.var.http_host';
+        echo $i;
+    }
+--- request
+GET /t
+--- response_body
+localhost
+--- no_error_log
+[error]
+