From 48d3739bf33e4db50e4e29928e287bbbe0a67934 Mon Sep 17 00:00:00 2001
From: Keen Yee Liau <kyliau@google.com>
Date: Tue, 3 Jul 2018 09:24:00 -0700
Subject: [PATCH] karma: Add typings for 'middleware' in ConfigOptions (#26882)

Karma config accepts a list of middleware as documented here:
http://karma-runner.github.io/2.0/config/configuration-file.html
---
 types/karma/index.d.ts     | 12 ++++++++++++
 types/karma/karma-tests.ts |  2 ++
 2 files changed, 14 insertions(+)

diff --git a/types/karma/index.d.ts b/types/karma/index.d.ts
index e2cce2c340..682cb35bf2 100644
--- a/types/karma/index.d.ts
+++ b/types/karma/index.d.ts
@@ -294,6 +294,18 @@ declare namespace karma {
          * @description A list of log appenders to be used. See the documentation for [log4js] for more information.
          */
         loggers?: Log4jsAppenderConfigBase[];
+        /**
+         * @default []
+         * @description List of names of additional middleware you want the
+         * Karma server to use. Middleware will be used in the order listed.
+         * You must have installed the middleware via a plugin/framework
+         * (either inline or via NPM). Additional information can be found in
+         * [plugins](http://karma-runner.github.io/2.0/config/plugins.html).
+         * The plugin must provide an express/connect middleware function
+         * (details about this can be found in the
+         * [Express](http://expressjs.com/guide/using-middleware.html) docs).
+         */
+        middleware?: string[];
         /**
          * @default {}
          * @description Redefine default mapping from file extensions to MIME-type.
diff --git a/types/karma/karma-tests.ts b/types/karma/karma-tests.ts
index b21fa88e50..6d9b8abd9f 100644
--- a/types/karma/karma-tests.ts
+++ b/types/karma/karma-tests.ts
@@ -88,6 +88,8 @@ module.exports = function(config: karma.Config) {
       'coverage'
     ],
 
+    middleware: ['foo', 'bar'],
+
     mime: {
       'text/x-typescript': ['ts', 'tsx']
     },