diff --git a/lib/internal/worker.js b/lib/internal/worker.js
index 41432f55e94d35..88580893cdc015 100644
--- a/lib/internal/worker.js
+++ b/lib/internal/worker.js
@@ -71,7 +71,6 @@ Object.setPrototypeOf(MessagePort.prototype, EventEmitter.prototype);
 // Finally, purge methods we don't want to be public.
 delete MessagePort.prototype.stop;
 delete MessagePort.prototype.drain;
-delete MessagePort.prototype.hasRef;
 MessagePort.prototype.ref = MessagePortPrototype.ref;
 MessagePort.prototype.unref = MessagePortPrototype.unref;
 
diff --git a/test/addons/make-callback/test.js b/test/addons/make-callback/test.js
index efea43df3c9f9e..c5a71b5ab7a3e0 100644
--- a/test/addons/make-callback/test.js
+++ b/test/addons/make-callback/test.js
@@ -6,39 +6,39 @@ const vm = require('vm');
 const binding = require(`./build/${common.buildType}/binding`);
 const makeCallback = binding.makeCallback;
 
-assert.strictEqual(42, makeCallback(process, common.mustCall(function() {
-  assert.strictEqual(0, arguments.length);
-  assert.strictEqual(this, process);
+assert.strictEqual(makeCallback(process, common.mustCall(function() {
+  assert.strictEqual(arguments.length, 0);
+  assert.strictEqual(process, this);
   return 42;
-})));
+})), 42);
 
-assert.strictEqual(42, makeCallback(process, common.mustCall(function(x) {
-  assert.strictEqual(1, arguments.length);
-  assert.strictEqual(this, process);
+assert.strictEqual(makeCallback(process, common.mustCall(function(x) {
+  assert.strictEqual(arguments.length, 1);
+  assert.strictEqual(process, this);
   assert.strictEqual(x, 1337);
   return 42;
-}), 1337));
+}), 1337), 42);
 
 const recv = {
   one: common.mustCall(function() {
-    assert.strictEqual(0, arguments.length);
-    assert.strictEqual(this, recv);
+    assert.strictEqual(arguments.length, 0);
+    assert.strictEqual(recv, this);
     return 42;
   }),
   two: common.mustCall(function(x) {
-    assert.strictEqual(1, arguments.length);
-    assert.strictEqual(this, recv);
+    assert.strictEqual(arguments.length, 1);
+    assert.strictEqual(recv, this);
     assert.strictEqual(x, 1337);
     return 42;
   }),
 };
 
-assert.strictEqual(42, makeCallback(recv, 'one'));
-assert.strictEqual(42, makeCallback(recv, 'two', 1337));
+assert.strictEqual(makeCallback(recv, 'one'), 42);
+assert.strictEqual(makeCallback(recv, 'two', 1337), 42);
 
 // Check that callbacks on a receiver from a different context works.
 const foreignObject = vm.runInNewContext('({ fortytwo() { return 42; } })');
-assert.strictEqual(42, makeCallback(foreignObject, 'fortytwo'));
+assert.strictEqual(makeCallback(foreignObject, 'fortytwo'), 42);
 
 // Check that the callback is made in the context of the receiver.
 const target = vm.runInNewContext(`
@@ -48,7 +48,7 @@ const target = vm.runInNewContext(`
       return Object;
     })
 `);
-assert.notStrictEqual(Object, makeCallback(process, target, Object));
+assert.notStrictEqual(makeCallback(process, target, Object), Object);
 
 // Runs in inner context.
 const forward = vm.runInNewContext(`
@@ -62,4 +62,4 @@ function endpoint($Object) {
     throw new Error('bad');
   return Object;
 }
-assert.strictEqual(Object, makeCallback(process, forward, endpoint));
+assert.strictEqual(makeCallback(process, forward, endpoint), Object);
diff --git a/test/parallel/test-fs-write.js b/test/parallel/test-fs-write.js
index a3c8814bc392ce..d75974b58d33cf 100644
--- a/test/parallel/test-fs-write.js
+++ b/test/parallel/test-fs-write.js
@@ -41,59 +41,59 @@ common.allowGlobals(externalizeString, isOneByteString, x);
 {
   const expected = 'ümlaut eins';  // Must be a unique string.
   externalizeString(expected);
-  assert.strictEqual(true, isOneByteString(expected));
+  assert.strictEqual(isOneByteString(expected), true);
   const fd = fs.openSync(fn, 'w');
   fs.writeSync(fd, expected, 0, 'latin1');
   fs.closeSync(fd);
-  assert.strictEqual(expected, fs.readFileSync(fn, 'latin1'));
+  assert.strictEqual(fs.readFileSync(fn, 'latin1'), expected);
 }
 
 {
   const expected = 'ümlaut zwei';  // Must be a unique string.
   externalizeString(expected);
-  assert.strictEqual(true, isOneByteString(expected));
+  assert.strictEqual(isOneByteString(expected), true);
   const fd = fs.openSync(fn, 'w');
   fs.writeSync(fd, expected, 0, 'utf8');
   fs.closeSync(fd);
-  assert.strictEqual(expected, fs.readFileSync(fn, 'utf8'));
+  assert.strictEqual(fs.readFileSync(fn, 'utf8'), expected);
 }
 
 {
   const expected = '中文 1';  // Must be a unique string.
   externalizeString(expected);
-  assert.strictEqual(false, isOneByteString(expected));
+  assert.strictEqual(isOneByteString(expected), false);
   const fd = fs.openSync(fn, 'w');
   fs.writeSync(fd, expected, 0, 'ucs2');
   fs.closeSync(fd);
-  assert.strictEqual(expected, fs.readFileSync(fn, 'ucs2'));
+  assert.strictEqual(fs.readFileSync(fn, 'ucs2'), expected);
 }
 
 {
   const expected = '中文 2';  // Must be a unique string.
   externalizeString(expected);
-  assert.strictEqual(false, isOneByteString(expected));
+  assert.strictEqual(isOneByteString(expected), false);
   const fd = fs.openSync(fn, 'w');
   fs.writeSync(fd, expected, 0, 'utf8');
   fs.closeSync(fd);
-  assert.strictEqual(expected, fs.readFileSync(fn, 'utf8'));
+  assert.strictEqual(fs.readFileSync(fn, 'utf8'), expected);
 }
 /* eslint-enable no-undef */
 
-fs.open(fn, 'w', 0o644, common.mustCall(function(err, fd) {
+fs.open(fn, 'w', 0o644, common.mustCall((err, fd) => {
   assert.ifError(err);
 
-  const done = common.mustCall(function(err, written) {
+  const done = common.mustCall((err, written) => {
     assert.ifError(err);
-    assert.strictEqual(Buffer.byteLength(expected), written);
+    assert.strictEqual(written, Buffer.byteLength(expected));
     fs.closeSync(fd);
     const found = fs.readFileSync(fn, 'utf8');
     fs.unlinkSync(fn);
-    assert.strictEqual(expected, found);
+    assert.strictEqual(found, expected);
   });
 
-  const written = common.mustCall(function(err, written) {
+  const written = common.mustCall((err, written) => {
     assert.ifError(err);
-    assert.strictEqual(0, written);
+    assert.strictEqual(written, 0);
     fs.write(fd, expected, 0, 'utf8', done);
   });
 
@@ -106,28 +106,28 @@ fs.open(fn2, args, 0o644, common.mustCall((err, fd) => {
 
   const done = common.mustCall((err, written) => {
     assert.ifError(err);
-    assert.strictEqual(Buffer.byteLength(expected), written);
+    assert.strictEqual(written, Buffer.byteLength(expected));
     fs.closeSync(fd);
     const found = fs.readFileSync(fn2, 'utf8');
     fs.unlinkSync(fn2);
-    assert.strictEqual(expected, found);
+    assert.strictEqual(found, expected);
   });
 
-  const written = common.mustCall(function(err, written) {
+  const written = common.mustCall((err, written) => {
     assert.ifError(err);
-    assert.strictEqual(0, written);
+    assert.strictEqual(written, 0);
     fs.write(fd, expected, 0, 'utf8', done);
   });
 
   fs.write(fd, '', 0, 'utf8', written);
 }));
 
-fs.open(fn3, 'w', 0o644, common.mustCall(function(err, fd) {
+fs.open(fn3, 'w', 0o644, common.mustCall((err, fd) => {
   assert.ifError(err);
 
-  const done = common.mustCall(function(err, written) {
+  const done = common.mustCall((err, written) => {
     assert.ifError(err);
-    assert.strictEqual(Buffer.byteLength(expected), written);
+    assert.strictEqual(written, Buffer.byteLength(expected));
     fs.closeSync(fd);
   });
 
diff --git a/test/parallel/test-readline-emit-keypress-events.js b/test/parallel/test-readline-emit-keypress-events.js
index ddadf6d223feaf..3b9aece4654ac1 100644
--- a/test/parallel/test-readline-emit-keypress-events.js
+++ b/test/parallel/test-readline-emit-keypress-events.js
@@ -20,11 +20,9 @@ stream.on('keypress', (s, k) => {
 
 stream.write('foo');
 
-process.on('exit', () => {
-  assert.deepStrictEqual(sequence, ['f', 'o', 'o']);
-  assert.deepStrictEqual(keys, [
-    { sequence: 'f', name: 'f', ctrl: false, meta: false, shift: false },
-    { sequence: 'o', name: 'o', ctrl: false, meta: false, shift: false },
-    { sequence: 'o', name: 'o', ctrl: false, meta: false, shift: false }
-  ]);
-});
+assert.deepStrictEqual(sequence, ['f', 'o', 'o']);
+assert.deepStrictEqual(keys, [
+  { sequence: 'f', name: 'f', ctrl: false, meta: false, shift: false },
+  { sequence: 'o', name: 'o', ctrl: false, meta: false, shift: false },
+  { sequence: 'o', name: 'o', ctrl: false, meta: false, shift: false }
+]);
diff --git a/test/sequential/test-inspector-debug-brk-flag.js b/test/sequential/test-inspector-debug-brk-flag.js
index d488eea2626584..7fa85c269c9343 100644
--- a/test/sequential/test-inspector-debug-brk-flag.js
+++ b/test/sequential/test-inspector-debug-brk-flag.js
@@ -34,7 +34,7 @@ async function runTests() {
   await testBreakpointOnStart(session);
   await session.runToCompletion();
 
-  assert.strictEqual(55, (await child.expectShutdown()).exitCode);
+  assert.strictEqual((await child.expectShutdown()).exitCode, 55);
 }
 
 runTests();