From 04b4d15b396a7befea31dbfec89f69ff71dc71ca Mon Sep 17 00:00:00 2001
From: cjihrig <cjihrig@gmail.com>
Date: Fri, 15 Jul 2016 15:43:24 -0400
Subject: test: use mustCall() for simple flow tracking

Many of the tests use variables to track when callback functions
are invoked or events are emitted. These variables are then
asserted on process exit. This commit replaces this pattern in
straightforward cases with common.mustCall(). This makes the
tests easier to reason about, leads to a net reduction in lines
of code, and uncovered a few bugs in tests. This commit also
replaces some callbacks that should never be called with
common.fail().

PR-URL: https://github.com/nodejs/node/pull/7753
Reviewed-By: Wyatt Preul <wpreul@gmail.com>
Reviewed-By: Minwoo Jung <jmwsoft@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
---
 .../parallel/test-stream2-httpclient-response-end.js | 20 +++++---------------
 1 file changed, 5 insertions(+), 15 deletions(-)

(limited to 'test/parallel/test-stream2-httpclient-response-end.js')

diff --git a/test/parallel/test-stream2-httpclient-response-end.js b/test/parallel/test-stream2-httpclient-response-end.js
index d1244be4c7..d674086055 100644
--- a/test/parallel/test-stream2-httpclient-response-end.js
+++ b/test/parallel/test-stream2-httpclient-response-end.js
@@ -1,32 +1,22 @@
 'use strict';
-require('../common');
+const common = require('../common');
 var assert = require('assert');
 var http = require('http');
 var msg = 'Hello';
-var readable_event = false;
-var end_event = false;
 var server = http.createServer(function(req, res) {
   res.writeHead(200, {'Content-Type': 'text/plain'});
   res.end(msg);
 }).listen(0, function() {
   http.get({port: this.address().port}, function(res) {
     var data = '';
-    res.on('readable', function() {
+    res.on('readable', common.mustCall(function() {
       console.log('readable event');
-      readable_event = true;
       data += res.read();
-    });
-    res.on('end', function() {
+    }));
+    res.on('end', common.mustCall(function() {
       console.log('end event');
-      end_event = true;
       assert.strictEqual(msg, data);
       server.close();
-    });
+    }));
   });
 });
-
-process.on('exit', function() {
-  assert(readable_event);
-  assert(end_event);
-});
-
-- 
cgit v1.2.1