diff --git a/test/parallel/test-tls-sni-option.js b/test/parallel/test-tls-sni-option.js
index 3a6a231b477f5d..f4bc7dc1b2bc1a 100644
--- a/test/parallel/test-tls-sni-option.js
+++ b/test/parallel/test-tls-sni-option.js
@@ -69,114 +69,106 @@ const SNIContexts = {
   }
 };
 
-const clientsOptions = [{
+test({
   port: undefined,
   key: loadPEM('agent1-key'),
   cert: loadPEM('agent1-cert'),
   ca: [loadPEM('ca1-cert')],
   servername: 'a.example.com',
   rejectUnauthorized: false
-}, {
+},
+     true,
+     { sni: 'a.example.com', authorized: false },
+     null,
+     null);
+
+test({
   port: undefined,
   key: loadPEM('agent4-key'),
   cert: loadPEM('agent4-cert'),
   ca: [loadPEM('ca1-cert')],
   servername: 'a.example.com',
   rejectUnauthorized: false
-}, {
+},
+     true,
+     { sni: 'a.example.com', authorized: true },
+     null,
+     null);
+
+test({
   port: undefined,
   key: loadPEM('agent2-key'),
   cert: loadPEM('agent2-cert'),
   ca: [loadPEM('ca2-cert')],
   servername: 'b.example.com',
   rejectUnauthorized: false
-}, {
+},
+     true,
+     { sni: 'b.example.com', authorized: false },
+     null,
+     null);
+
+test({
   port: undefined,
   key: loadPEM('agent3-key'),
   cert: loadPEM('agent3-cert'),
   ca: [loadPEM('ca1-cert')],
   servername: 'c.wrong.com',
   rejectUnauthorized: false
-}, {
+},
+     false,
+     { sni: 'c.wrong.com', authorized: false },
+     null,
+     null);
+
+test({
   port: undefined,
   key: loadPEM('agent3-key'),
   cert: loadPEM('agent3-cert'),
   ca: [loadPEM('ca1-cert')],
   servername: 'c.another.com',
   rejectUnauthorized: false
-}];
-
-const serverResults = [];
-const clientResults = [];
-const serverErrors = [];
-const clientErrors = [];
-let serverError;
-let clientError;
-
-const server = tls.createServer(serverOptions, function(c) {
-  serverResults.push({ sni: c.servername, authorized: c.authorized });
-  c.end();
-});
-
-server.on('tlsClientError', function(err) {
-  serverResults.push(null);
-  serverError = err.message;
-});
-
-server.listen(0, startTest);
+},
+     false,
+     null,
+     'Client network socket disconnected before secure TLS ' +
+       'connection was established',
+     'Invalid SNI context');
+
+function test(options, clientResult, serverResult, clientError, serverError) {
+  const server = tls.createServer(serverOptions, (c) => {
+    assert.deepStrictEqual(
+      { sni: c.servername, authorized: c.authorized },
+      serverResult
+    );
+  });
 
-function startTest() {
-  function connectClient(i, callback) {
-    const options = clientsOptions[i];
-    clientError = null;
-    serverError = null;
+  if (serverResult) {
+    assert(!serverError);
+    server.on('tlsClientError', common.mustNotCall());
+  } else {
+    assert(serverError);
+    server.on('tlsClientError', common.mustCall((err) => {
+      assert.strictEqual(err.message, serverError);
+    }));
+  }
 
+  server.listen(0, () => {
     options.port = server.address().port;
-    const client = tls.connect(options, function() {
-      clientResults.push(
-        client.authorizationError &&
-         (client.authorizationError === 'ERR_TLS_CERT_ALTNAME_INVALID'));
-
-      next();
-    });
-
-    client.on('error', function(err) {
-      clientResults.push(false);
-      clientError = err.message;
-      next();
+    const client = tls.connect(options, () => {
+      const result = client.authorizationError &&
+        (client.authorizationError === 'ERR_TLS_CERT_ALTNAME_INVALID');
+      assert.strictEqual(result, clientResult);
+      client.end();
     });
 
-    function next() {
-      clientErrors.push(clientError);
-      serverErrors.push(serverError);
-
-      if (i === clientsOptions.length - 1)
-        callback();
-      else
-        connectClient(i + 1, callback);
-    }
-  }
+    client.on('close', common.mustCall(() => server.close()));
 
-  connectClient(0, function() {
-    server.close();
+    if (clientError)
+      client.on('error', common.mustCall((err) => {
+        assert.strictEqual(err.message, clientError);
+      }));
+    else
+      client.on('error', common.mustNotCall());
   });
 }
-
-process.on('exit', function() {
-  assert.deepStrictEqual(serverResults, [
-    { sni: 'a.example.com', authorized: false },
-    { sni: 'a.example.com', authorized: true },
-    { sni: 'b.example.com', authorized: false },
-    { sni: 'c.wrong.com', authorized: false },
-    null
-  ]);
-  assert.deepStrictEqual(clientResults, [true, true, true, false, false]);
-  assert.deepStrictEqual(clientErrors, [
-    null, null, null, null,
-    'Client network socket disconnected before secure TLS ' +
-    'connection was established'
-  ]);
-  assert.deepStrictEqual(serverErrors, [
-    null, null, null, null, 'Invalid SNI context'
-  ]);
-});