Test: describe how to test and fix failed test case

Author: spacewander

.gitignore

@@ -0,0 +1 @@
+t/servroot

README.md

@@ -9,6 +9,7 @@ Table of Contents
 =================
 
 * [Version](#version)
+* [Test](#test)
 * [Dependencies](#dependencies)
 * [Compatibility](#compatibility)
 * [Screenshots](#screenshots)
@@ -79,6 +80,10 @@ Table of Contents
 ## Version
 This document describes nginx-module-vts `v0.1.18` released on 22 Jun 2018.
 
+## Test
+Run `sudo prove -r t` after you have installed this module. The `sudo` is required because
+the test requires Nginx to listen on port 80.
+
 ## Dependencies
 * [nginx](http://nginx.org)
 

t/018.limit_traffic_by_set_key.t

@@ -2,7 +2,7 @@
 
 use Test::Nginx::Socket;
 
-plan tests => repeat_each() * blocks() * 12;
+plan tests => repeat_each() * blocks() * 11 + 2;
 no_shuffle();
 run_tests();
 
@@ -184,15 +184,13 @@ __DATA__
     'GET /backend/file.txt',
     'GET /backend/file.txt',
     'GET /backend/file.txt',
-    'GET /backend/file.txt',
 ]
 --- error_code eval
 [
     200,
     200,
     200,
     200,
-    200,
     503,
 ]
 --- response_body_like eval
@@ -202,5 +200,4 @@ __DATA__
     'OK',
     'OK',
     'OK',
-    'OK',
 ]