diff --git a/test/parallel/test-buffer-includes.js b/test/parallel/test-buffer-includes.js
index fe8f4fa69aa8e7..22ba1e6b7e1735 100644
--- a/test/parallel/test-buffer-includes.js
+++ b/test/parallel/test-buffer-includes.js
@@ -79,44 +79,64 @@ assert(!b.includes(Buffer.from('f'), 6));
 assert(!Buffer.from('ff').includes(Buffer.from('f'), 1, 'ucs2'));
 
 // test hex encoding
-assert(
-    Buffer.from(b.toString('hex'), 'hex')
-    .includes('64', 0, 'hex'));
-assert(
-    Buffer.from(b.toString('hex'), 'hex')
-    .includes(Buffer.from('64', 'hex'), 0, 'hex'));
+assert.strictEqual(
+  Buffer.from(b.toString('hex'), 'hex')
+    .includes('64', 0, 'hex'),
+  true
+);
+assert.strictEqual(
+  Buffer.from(b.toString('hex'), 'hex')
+    .includes(Buffer.from('64', 'hex'), 0, 'hex'),
+  true
+);
 
 // test base64 encoding
-assert(
-    Buffer.from(b.toString('base64'), 'base64')
-    .includes('ZA==', 0, 'base64'));
-assert(
-    Buffer.from(b.toString('base64'), 'base64')
-    .includes(Buffer.from('ZA==', 'base64'), 0, 'base64'));
+assert.strictEqual(
+  Buffer.from(b.toString('base64'), 'base64')
+    .includes('ZA==', 0, 'base64'),
+  true
+);
+assert.strictEqual(
+  Buffer.from(b.toString('base64'), 'base64')
+    .includes(Buffer.from('ZA==', 'base64'), 0, 'base64'),
+  true
+);
 
 // test ascii encoding
-assert(
-    Buffer.from(b.toString('ascii'), 'ascii')
-    .includes('d', 0, 'ascii'));
-assert(
-    Buffer.from(b.toString('ascii'), 'ascii')
-    .includes(Buffer.from('d', 'ascii'), 0, 'ascii'));
+assert.strictEqual(
+  Buffer.from(b.toString('ascii'), 'ascii')
+    .includes('d', 0, 'ascii'),
+  true
+);
+assert.strictEqual(
+  Buffer.from(b.toString('ascii'), 'ascii')
+    .includes(Buffer.from('d', 'ascii'), 0, 'ascii'),
+  true
+);
 
 // test latin1 encoding
-assert(
-    Buffer.from(b.toString('latin1'), 'latin1')
-    .includes('d', 0, 'latin1'));
-assert(
-    Buffer.from(b.toString('latin1'), 'latin1')
-    .includes(Buffer.from('d', 'latin1'), 0, 'latin1'));
+assert.strictEqual(
+  Buffer.from(b.toString('latin1'), 'latin1')
+    .includes('d', 0, 'latin1'),
+  true
+);
+assert.strictEqual(
+  Buffer.from(b.toString('latin1'), 'latin1')
+    .includes(Buffer.from('d', 'latin1'), 0, 'latin1'),
+  true
+);
 
 // test binary encoding
-assert(
-    Buffer.from(b.toString('binary'), 'binary')
-    .includes('d', 0, 'binary'));
-assert(
-    Buffer.from(b.toString('binary'), 'binary')
-    .includes(Buffer.from('d', 'binary'), 0, 'binary'));
+assert.strictEqual(
+  Buffer.from(b.toString('binary'), 'binary')
+    .includes('d', 0, 'binary'),
+  true
+);
+assert.strictEqual(
+  Buffer.from(b.toString('binary'), 'binary')
+    .includes(Buffer.from('d', 'binary'), 0, 'binary'),
+  true
+);
 
 
 // test usc2 encoding
diff --git a/test/parallel/test-buffer-indexof.js b/test/parallel/test-buffer-indexof.js
index 59e969c315ec65..d7598d8b75cbf1 100644
--- a/test/parallel/test-buffer-indexof.js
+++ b/test/parallel/test-buffer-indexof.js
@@ -79,62 +79,94 @@ assert.equal(b.indexOf(Buffer.from('f'), 6), -1);
 assert.equal(Buffer.from('ff').indexOf(Buffer.from('f'), 1, 'ucs2'), -1);
 
 // test hex encoding
-assert.equal(
-    Buffer.from(b.toString('hex'), 'hex')
-    .indexOf('64', 0, 'hex'), 3);
-assert.equal(
-    Buffer.from(b.toString('hex'), 'hex')
-    .indexOf(Buffer.from('64', 'hex'), 0, 'hex'), 3);
+assert.strictEqual(
+  Buffer.from(b.toString('hex'), 'hex')
+    .indexOf('64', 0, 'hex'),
+  3
+);
+assert.strictEqual(
+  Buffer.from(b.toString('hex'), 'hex')
+    .indexOf(Buffer.from('64', 'hex'), 0, 'hex'),
+  3
+);
 
 // test base64 encoding
-assert.equal(
-    Buffer.from(b.toString('base64'), 'base64')
-    .indexOf('ZA==', 0, 'base64'), 3);
-assert.equal(
-    Buffer.from(b.toString('base64'), 'base64')
-    .indexOf(Buffer.from('ZA==', 'base64'), 0, 'base64'), 3);
+assert.strictEqual(
+  Buffer.from(b.toString('base64'), 'base64')
+    .indexOf('ZA==', 0, 'base64'),
+  3
+);
+assert.strictEqual(
+  Buffer.from(b.toString('base64'), 'base64')
+    .indexOf(Buffer.from('ZA==', 'base64'), 0, 'base64'),
+  3
+);
 
 // test ascii encoding
-assert.equal(
-    Buffer.from(b.toString('ascii'), 'ascii')
-    .indexOf('d', 0, 'ascii'), 3);
-assert.equal(
-    Buffer.from(b.toString('ascii'), 'ascii')
-    .indexOf(Buffer.from('d', 'ascii'), 0, 'ascii'), 3);
+assert.strictEqual(
+  Buffer.from(b.toString('ascii'), 'ascii')
+    .indexOf('d', 0, 'ascii'),
+  3
+);
+assert.strictEqual(
+  Buffer.from(b.toString('ascii'), 'ascii')
+    .indexOf(Buffer.from('d', 'ascii'), 0, 'ascii'),
+  3
+);
 
 // test latin1 encoding
-assert.equal(
-    Buffer.from(b.toString('latin1'), 'latin1')
-    .indexOf('d', 0, 'latin1'), 3);
-assert.equal(
-    Buffer.from(b.toString('latin1'), 'latin1')
-    .indexOf(Buffer.from('d', 'latin1'), 0, 'latin1'), 3);
-assert.equal(
-    Buffer.from('aa\u00e8aa', 'latin1')
-    .indexOf('\u00e8', 'latin1'), 2);
-assert.equal(
-    Buffer.from('\u00e8', 'latin1')
-    .indexOf('\u00e8', 'latin1'), 0);
-assert.equal(
-    Buffer.from('\u00e8', 'latin1')
-    .indexOf(Buffer.from('\u00e8', 'latin1'), 'latin1'), 0);
+assert.strictEqual(
+  Buffer.from(b.toString('latin1'), 'latin1')
+    .indexOf('d', 0, 'latin1'),
+  3
+);
+assert.strictEqual(
+  Buffer.from(b.toString('latin1'), 'latin1')
+    .indexOf(Buffer.from('d', 'latin1'), 0, 'latin1'),
+  3
+);
+assert.strictEqual(
+  Buffer.from('aa\u00e8aa', 'latin1')
+    .indexOf('\u00e8', 'latin1'),
+  2
+);
+assert.strictEqual(
+  Buffer.from('\u00e8', 'latin1')
+    .indexOf('\u00e8', 'latin1'),
+  0
+);
+assert.strictEqual(
+  Buffer.from('\u00e8', 'latin1')
+    .indexOf(Buffer.from('\u00e8', 'latin1'), 'latin1'),
+  0
+);
 
 // test binary encoding
-assert.equal(
-    Buffer.from(b.toString('binary'), 'binary')
-    .indexOf('d', 0, 'binary'), 3);
-assert.equal(
-    Buffer.from(b.toString('binary'), 'binary')
-    .indexOf(Buffer.from('d', 'binary'), 0, 'binary'), 3);
-assert.equal(
-    Buffer.from('aa\u00e8aa', 'binary')
-    .indexOf('\u00e8', 'binary'), 2);
-assert.equal(
-    Buffer.from('\u00e8', 'binary')
-    .indexOf('\u00e8', 'binary'), 0);
-assert.equal(
-    Buffer.from('\u00e8', 'binary')
-    .indexOf(Buffer.from('\u00e8', 'binary'), 'binary'), 0);
+assert.strictEqual(
+  Buffer.from(b.toString('binary'), 'binary')
+    .indexOf('d', 0, 'binary'),
+  3
+);
+assert.strictEqual(
+  Buffer.from(b.toString('binary'), 'binary')
+    .indexOf(Buffer.from('d', 'binary'), 0, 'binary'),
+  3
+);
+assert.strictEqual(
+  Buffer.from('aa\u00e8aa', 'binary')
+    .indexOf('\u00e8', 'binary'),
+  2
+);
+assert.strictEqual(
+  Buffer.from('\u00e8', 'binary')
+    .indexOf('\u00e8', 'binary'),
+  0
+);
+assert.strictEqual(
+  Buffer.from('\u00e8', 'binary')
+    .indexOf(Buffer.from('\u00e8', 'binary'), 'binary'),
+  0
+);
 
 
 // test optional offset with passed encoding
diff --git a/test/parallel/test-cluster-worker-forced-exit.js b/test/parallel/test-cluster-worker-forced-exit.js
index 0592cbfd01ac69..3e1f7905ee50d1 100644
--- a/test/parallel/test-cluster-worker-forced-exit.js
+++ b/test/parallel/test-cluster-worker-forced-exit.js
@@ -29,20 +29,16 @@ checkForced();
 
 function checkUnforced() {
   cluster.fork()
-  .on('online', function() {
-    this.disconnect();
-  })
-  .on('exit', common.mustCall(function(status) {
-    assert.equal(status, SENTINEL);
-  }));
+    .on('online', function() { this.disconnect(); })
+    .on('exit', common.mustCall(function(status) {
+      assert.strictEqual(status, SENTINEL);
+    }));
 }
 
 function checkForced() {
   cluster.fork()
-  .on('online', function() {
-    this.process.disconnect();
-  })
-  .on('exit', common.mustCall(function(status) {
-    assert.equal(status, 0);
-  }));
+    .on('online', function() { this.process.disconnect(); })
+    .on('exit', common.mustCall(function(status) {
+      assert.strictEqual(status, 0);
+    }));
 }
diff --git a/test/parallel/test-crypto-binary-default.js b/test/parallel/test-crypto-binary-default.js
index e163c9e4cd65ab..3b3603157786de 100644
--- a/test/parallel/test-crypto-binary-default.js
+++ b/test/parallel/test-crypto-binary-default.js
@@ -324,19 +324,23 @@ var rfc2202_sha1 = [
 
 for (let i = 0, l = rfc2202_md5.length; i < l; i++) {
   if (!common.hasFipsCrypto) {
-    assert.equal(rfc2202_md5[i]['hmac'],
-                 crypto.createHmac('md5', rfc2202_md5[i]['key'])
-                     .update(rfc2202_md5[i]['data'])
-                     .digest('hex'),
-                 'Test HMAC-MD5 : Test case ' + (i + 1) + ' rfc 2202');
+    assert.strictEqual(
+      rfc2202_md5[i]['hmac'],
+      crypto.createHmac('md5', rfc2202_md5[i]['key'])
+        .update(rfc2202_md5[i]['data'])
+        .digest('hex'),
+      'Test HMAC-MD5 : Test case ' + (i + 1) + ' rfc 2202'
+    );
   }
 }
 for (let i = 0, l = rfc2202_sha1.length; i < l; i++) {
-  assert.equal(rfc2202_sha1[i]['hmac'],
-               crypto.createHmac('sha1', rfc2202_sha1[i]['key'])
-                   .update(rfc2202_sha1[i]['data'])
-                   .digest('hex'),
-               'Test HMAC-SHA1 : Test case ' + (i + 1) + ' rfc 2202');
+  assert.strictEqual(
+    rfc2202_sha1[i]['hmac'],
+    crypto.createHmac('sha1', rfc2202_sha1[i]['key'])
+      .update(rfc2202_sha1[i]['data'])
+      .digest('hex'),
+    'Test HMAC-SHA1 : Test case ' + (i + 1) + ' rfc 2202'
+  );
 }
 
 // Test hashing
diff --git a/test/parallel/test-crypto-hmac.js b/test/parallel/test-crypto-hmac.js
index f377d91fd88780..8c2236e6b2ae1f 100644
--- a/test/parallel/test-crypto-hmac.js
+++ b/test/parallel/test-crypto-hmac.js
@@ -351,17 +351,21 @@ var rfc2202_sha1 = [
 
 if (!common.hasFipsCrypto) {
   for (let i = 0, l = rfc2202_md5.length; i < l; i++) {
-    assert.equal(rfc2202_md5[i]['hmac'],
-                 crypto.createHmac('md5', rfc2202_md5[i]['key'])
-                     .update(rfc2202_md5[i]['data'])
-                     .digest('hex'),
-                 'Test HMAC-MD5 : Test case ' + (i + 1) + ' rfc 2202');
+    assert.strictEqual(
+      rfc2202_md5[i]['hmac'],
+      crypto.createHmac('md5', rfc2202_md5[i]['key'])
+        .update(rfc2202_md5[i]['data'])
+        .digest('hex'),
+      'Test HMAC-MD5 : Test case ' + (i + 1) + ' rfc 2202'
+    );
   }
 }
 for (let i = 0, l = rfc2202_sha1.length; i < l; i++) {
-  assert.equal(rfc2202_sha1[i]['hmac'],
-               crypto.createHmac('sha1', rfc2202_sha1[i]['key'])
-                   .update(rfc2202_sha1[i]['data'])
-                   .digest('hex'),
-               'Test HMAC-SHA1 : Test case ' + (i + 1) + ' rfc 2202');
+  assert.strictEqual(
+    rfc2202_sha1[i]['hmac'],
+    crypto.createHmac('sha1', rfc2202_sha1[i]['key'])
+      .update(rfc2202_sha1[i]['data'])
+      .digest('hex'),
+    'Test HMAC-SHA1 : Test case ' + (i + 1) + ' rfc 2202'
+  );
 }
diff --git a/test/parallel/test-net-server-max-connections-close-makes-more-available.js b/test/parallel/test-net-server-max-connections-close-makes-more-available.js
index 2f8bee1a8d68d9..fb9831d05b3e50 100644
--- a/test/parallel/test-net-server-max-connections-close-makes-more-available.js
+++ b/test/parallel/test-net-server-max-connections-close-makes-more-available.js
@@ -69,12 +69,12 @@ server.maxConnections = 1;
 
 server.listen(0, function() {
   createConnection(0)
-  .then(createConnection.bind(null, 1))
-  .then(closeConnection.bind(null, 0))
-  .then(createConnection.bind(null, 2))
-  .then(createConnection.bind(null, 3))
-  .then(server.close.bind(server))
-  .then(closeConnection.bind(null, 2));
+    .then(createConnection.bind(null, 1))
+    .then(closeConnection.bind(null, 0))
+    .then(createConnection.bind(null, 2))
+    .then(createConnection.bind(null, 3))
+    .then(server.close.bind(server))
+    .then(closeConnection.bind(null, 2));
 });
 
 process.on('exit', function() {
diff --git a/test/parallel/test-readline-interface.js b/test/parallel/test-readline-interface.js
index b09870b0dd7b85..4a4b2f896961e8 100644
--- a/test/parallel/test-readline-interface.js
+++ b/test/parallel/test-readline-interface.js
@@ -346,14 +346,22 @@ function isWarned(emitter) {
   assert.equal(internalReadline.getStringWidth('A\ud83c\ude00BC'), 5);
 
   // check if vt control chars are stripped
-  assert.equal(internalReadline
-               .stripVTControlCharacters('\u001b[31m> \u001b[39m'), '> ');
-  assert.equal(internalReadline
-               .stripVTControlCharacters('\u001b[31m> \u001b[39m> '), '> > ');
-  assert.equal(internalReadline
-               .stripVTControlCharacters('\u001b[31m\u001b[39m'), '');
-  assert.equal(internalReadline
-               .stripVTControlCharacters('> '), '> ');
+  assert.strictEqual(
+    internalReadline.stripVTControlCharacters('\u001b[31m> \u001b[39m'),
+    '> '
+  );
+  assert.strictEqual(
+    internalReadline.stripVTControlCharacters('\u001b[31m> \u001b[39m> '),
+    '> > '
+  );
+  assert.strictEqual(
+    internalReadline.stripVTControlCharacters('\u001b[31m\u001b[39m'),
+    ''
+  );
+  assert.strictEqual(
+    internalReadline.stripVTControlCharacters('> '),
+    '> '
+  );
   assert.equal(internalReadline.getStringWidth('\u001b[31m> \u001b[39m'), 2);
   assert.equal(internalReadline.getStringWidth('\u001b[31m> \u001b[39m> '), 4);
   assert.equal(internalReadline.getStringWidth('\u001b[31m\u001b[39m'), 0);