test: adhere more closely to test best practices

test/parallel/test-pipe-abstract-socket-http.js

@@ -1,71 +1,27 @@
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
 'use strict';
 const common = require('../common');
 const assert = require('assert');
 const http = require('http');
 
-if (!common.isLinux)
-  common.skip();
-
-const abstractSocket = '\0abstract';
-
-let resStatus;
-
-const server = http.createServer((req, res) => {
-  assert.strictEqual(req.method, 'POST');
-
-  req.resume();
-
-  req.on('end', () => {
-    res.writeHead(200, { 'Content-Type': 'text/plain' });
-    res.end();
-  });
-});
-server.listen(abstractSocket);
-
-server.on('listening', () => {
-  makeRequest();
-});
-
-function makeRequest() {
-  const req = http.request({
-    path: '/',
-    method: 'POST',
-    socketPath: abstractSocket,
-  });
-
-  req.end();
-
-  req.on('response', (res) => {
-    resStatus = res.statusCode;
-
-    res.resume();
-    res.on('end', () => {
-      server.close();
-    });
-  });
-}
-
-process.on('exit', () => {
-  assert.strictEqual(resStatus, 200);
-});
+if (!common.isLinux) common.skip();
+
+const server = http.createServer(
+  common.mustCall((req, res) => {
+    res.end('ok');
+  })
+);
+
+server.listen(
+  '\0abstract',
+  common.mustCall(() => {
+    http.get(
+      {
+        socketPath: server.address(),
+      },
+      common.mustCall((res) => {
+        assert.strictEqual(res.statusCode, 200);
+        server.close();
+      })
+    );
+  })
+);