diff --git a/test/parallel/test-assert.js b/test/parallel/test-assert.js
index 3564c3b5ec25c5..eb983345418637 100644
--- a/test/parallel/test-assert.js
+++ b/test/parallel/test-assert.js
@@ -358,9 +358,9 @@ try {
 assert.equal(true, threw,
              'a.doesNotThrow is not catching type matching errors');
 
-assert.throws(function() {assert.ifError(new Error('test error'));});
-assert.doesNotThrow(function() {assert.ifError(null);});
-assert.doesNotThrow(function() {assert.ifError();});
+assert.throws(function() { assert.ifError(new Error('test error')); });
+assert.doesNotThrow(function() { assert.ifError(null); });
+assert.doesNotThrow(function() { assert.ifError(); });
 
 assert.throws(() => {
   assert.doesNotThrow(makeBlock(thrower, Error), 'user message');
diff --git a/test/parallel/test-buffer-alloc.js b/test/parallel/test-buffer-alloc.js
index 6e97cf56b330df..4bc18dd1ab1cf7 100644
--- a/test/parallel/test-buffer-alloc.js
+++ b/test/parallel/test-buffer-alloc.js
@@ -990,7 +990,7 @@ assert.throws(() => Buffer.from('', 'buffer'), TypeError);
 {
   let a = [0];
   for (let i = 0; i < 7; ++i) a = a.concat(a);
-  a = a.map((_, i) => {return i;});
+  a = a.map((_, i) => { return i; });
   const b = Buffer.from(a);
   const c = Buffer.from(b);
   assert.strictEqual(b.length, a.length);
diff --git a/test/parallel/test-debugger-repeat-last.js b/test/parallel/test-debugger-repeat-last.js
index 157baada0c3ea7..7a43bbb6c767ae 100644
--- a/test/parallel/test-debugger-repeat-last.js
+++ b/test/parallel/test-debugger-repeat-last.js
@@ -26,15 +26,15 @@ var sentExit = false;
 proc.stdout.on('data', (data) => {
   stdout += data;
   if (!sentCommand && stdout.includes('> 1')) {
-    setImmediate(() => {proc.stdin.write('n\n');});
+    setImmediate(() => { proc.stdin.write('n\n'); });
     return sentCommand = true;
   }
   if (!sentEmpty && stdout.includes('> 3')) {
-    setImmediate(() => {proc.stdin.write('\n');});
+    setImmediate(() => { proc.stdin.write('\n'); });
     return sentEmpty = true;
   }
   if (!sentExit && sentCommand && sentEmpty) {
-    setTimeout(() => {proc.stdin.write('\n\n\n.exit\n\n\n');}, 1);
+    setTimeout(() => { proc.stdin.write('\n\n\n.exit\n\n\n'); }, 1);
     return sentExit = true;
   }
 });
diff --git a/test/parallel/test-fs-realpath.js b/test/parallel/test-fs-realpath.js
index 250837467d84eb..dcaf8177c9499c 100644
--- a/test/parallel/test-fs-realpath.js
+++ b/test/parallel/test-fs-realpath.js
@@ -87,7 +87,7 @@ function test_simple_relative_symlink(callback) {
   [
     [entry, '../' + common.tmpDirName + '/cycles/root.js']
   ].forEach(function(t) {
-    try {fs.unlinkSync(t[0]);} catch (e) {}
+    try { fs.unlinkSync(t[0]); } catch (e) {}
     console.log('fs.symlinkSync(%j, %j, %j)', t[1], t[0], 'file');
     fs.symlinkSync(t[1], t[0], 'file');
     unlink.push(t[0]);
@@ -113,7 +113,7 @@ function test_simple_absolute_symlink(callback) {
   [
     [entry, expected]
   ].forEach(function(t) {
-    try {fs.unlinkSync(t[0]);} catch (e) {}
+    try { fs.unlinkSync(t[0]); } catch (e) {}
     console.error('fs.symlinkSync(%j, %j, %j)', t[1], t[0], type);
     fs.symlinkSync(t[1], t[0], type);
     unlink.push(t[0]);
@@ -138,13 +138,13 @@ function test_deep_relative_file_symlink(callback) {
                                 expected);
   const linkPath1 = path.join(targetsAbsDir,
                             'nested-index', 'one', 'symlink1.js');
-  try {fs.unlinkSync(linkPath1);} catch (e) {}
+  try { fs.unlinkSync(linkPath1); } catch (e) {}
   fs.symlinkSync(linkData1, linkPath1, 'file');
 
   const linkData2 = '../one/symlink1.js';
   const entry = path.join(targetsAbsDir,
                         'nested-index', 'two', 'symlink1-b.js');
-  try {fs.unlinkSync(entry);} catch (e) {}
+  try { fs.unlinkSync(entry); } catch (e) {}
   fs.symlinkSync(linkData2, entry, 'file');
   unlink.push(linkPath1);
   unlink.push(entry);
@@ -165,13 +165,13 @@ function test_deep_relative_dir_symlink(callback) {
   const path1b = path.join(targetsAbsDir, 'nested-index', 'one');
   const linkPath1b = path.join(path1b, 'symlink1-dir');
   const linkData1b = path.relative(path1b, expected);
-  try {fs.unlinkSync(linkPath1b);} catch (e) {}
+  try { fs.unlinkSync(linkPath1b); } catch (e) {}
   fs.symlinkSync(linkData1b, linkPath1b, 'dir');
 
   const linkData2b = '../one/symlink1-dir';
   const entry = path.join(targetsAbsDir,
                         'nested-index', 'two', 'symlink12-dir');
-  try {fs.unlinkSync(entry);} catch (e) {}
+  try { fs.unlinkSync(entry); } catch (e) {}
   fs.symlinkSync(linkData2b, entry, 'dir');
   unlink.push(linkPath1b);
   unlink.push(entry);
@@ -195,7 +195,7 @@ function test_cyclic_link_protection(callback) {
     [common.tmpDir + '/cycles/realpath-3b', '../cycles/realpath-3c'],
     [common.tmpDir + '/cycles/realpath-3c', '../cycles/realpath-3a']
   ].forEach(function(t) {
-    try {fs.unlinkSync(t[0]);} catch (e) {}
+    try { fs.unlinkSync(t[0]); } catch (e) {}
     fs.symlinkSync(t[1], t[0], 'dir');
     unlink.push(t[0]);
   });
@@ -218,7 +218,7 @@ function test_cyclic_link_overprotection(callback) {
   const link = folder + '/cycles';
   var testPath = cycles;
   testPath += '/folder/cycles'.repeat(10);
-  try {fs.unlinkSync(link);} catch (ex) {}
+  try { fs.unlinkSync(link); } catch (ex) {}
   fs.symlinkSync(cycles, link, 'dir');
   unlink.push(link);
   assertEqualPath(fs.realpathSync(testPath), path.resolve(expected));
@@ -246,7 +246,7 @@ function test_relative_input_cwd(callback) {
   ].forEach(function(t) {
     const fn = t[0];
     console.error('fn=%j', fn);
-    try {fs.unlinkSync(fn);} catch (e) {}
+    try { fs.unlinkSync(fn); } catch (e) {}
     const b = path.basename(t[1]);
     const type = (b === 'root.js' ? 'file' : 'dir');
     console.log('fs.symlinkSync(%j, %j, %j)', t[1], fn, type);
@@ -363,7 +363,7 @@ function test_up_multiple(cb) {
     ['a/b',
       'a'
     ].forEach(function(folder) {
-      try {fs.rmdirSync(tmp(folder));} catch (ex) {}
+      try { fs.rmdirSync(tmp(folder)); } catch (ex) {}
     });
   }
   function setup() {
@@ -420,14 +420,14 @@ function test_abs_with_kids(cb) {
     ['/a/b/c/x.txt',
       '/a/link'
     ].forEach(function(file) {
-      try {fs.unlinkSync(root + file);} catch (ex) {}
+      try { fs.unlinkSync(root + file); } catch (ex) {}
     });
     ['/a/b/c',
       '/a/b',
       '/a',
       ''
     ].forEach(function(folder) {
-      try {fs.rmdirSync(root + folder);} catch (ex) {}
+      try { fs.rmdirSync(root + folder); } catch (ex) {}
     });
   }
   function setup() {
diff --git a/test/parallel/test-http-chunked.js b/test/parallel/test-http-chunked.js
index 6edb1b3f96a74b..bb91dadd159de5 100644
--- a/test/parallel/test-http-chunked.js
+++ b/test/parallel/test-http-chunked.js
@@ -25,7 +25,7 @@ server.listen(0, function() {
     port: this.address().port
   }, function(x) {
     x.setEncoding('utf8');
-    x.on('data', function(c) {data += c;});
+    x.on('data', function(c) { data += c; });
     x.on('error', function(e) {
       throw e;
     });
@@ -37,7 +37,7 @@ server.listen(0, function() {
       server.close();
     });
   });
-  get.on('error', function(e) {throw e;});
+  get.on('error', function(e) { throw e; });
   get.end();
 
 });
diff --git a/test/parallel/test-v8-flag-type-check.js b/test/parallel/test-v8-flag-type-check.js
index 3724944821343c..986f37314d605f 100644
--- a/test/parallel/test-v8-flag-type-check.js
+++ b/test/parallel/test-v8-flag-type-check.js
@@ -3,5 +3,5 @@ require('../common');
 var assert = require('assert');
 var v8 = require('v8');
 
-assert.throws(function() {v8.setFlagsFromString(1);}, TypeError);
-assert.throws(function() {v8.setFlagsFromString();}, TypeError);
+assert.throws(function() { v8.setFlagsFromString(1); }, TypeError);
+assert.throws(function() { v8.setFlagsFromString(); }, TypeError);