test,benchmark,doc: enable dot-notation rule

This enables the eslint dot-notation rule for all code instead of
only in /lib.

PR-URL: #18749
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matheus Marchini <matheus@sthima.com>

.eslintrc.yaml

@@ -47,6 +47,7 @@ rules:
   accessor-pairs: error
   array-callback-return: error
   dot-location: [error, property]
+  dot-notation: error
   eqeqeq: [error, smart]
   no-fallthrough: error
   no-global-assign: error

benchmark/misc/object-property-bench.js

@@ -1,5 +1,7 @@
 'use strict';
 
+/* eslint-disable dot-notation */
+
 const common = require('../common.js');
 
 const bench = common.createBenchmark(main, {

doc/api/http2.md

@@ -1224,7 +1224,7 @@ const server = http2.createServer();
 server.on('stream', (stream) => {
   stream.respond({ ':status': 200 }, {
     getTrailers(trailers) {
-      trailers['ABC'] = 'some value to send';
+      trailers.ABC = 'some value to send';
     }
   });
   stream.end('some data');
@@ -1308,7 +1308,7 @@ server.on('stream', (stream) => {
   };
   stream.respondWithFD(fd, headers, {
     getTrailers(trailers) {
-      trailers['ABC'] = 'some value to send';
+      trailers.ABC = 'some value to send';
     }
   });
 });
@@ -1416,7 +1416,7 @@ const http2 = require('http2');
 const server = http2.createServer();
 server.on('stream', (stream) => {
   function getTrailers(trailers) {
-    trailers['ABC'] = 'some value to send';
+    trailers.ABC = 'some value to send';
   }
   stream.respondWithFile('/some/file',
                          { 'content-type': 'text/plain' },

lib/.eslintrc.yaml

@@ -1,6 +1,4 @@
 rules:
-  dot-notation: error
-
   # Custom rules in tools/eslint-rules
   require-buffer: error
   buffer-constructor: error

test/addons-napi/test_symbol/test1.js

@@ -8,11 +8,10 @@ const test_symbol = require(`./build/${common.buildType}/test_symbol`);
 const sym = test_symbol.New('test');
 assert.strictEqual(sym.toString(), 'Symbol(test)');
 
-
 const myObj = {};
 const fooSym = test_symbol.New('foo');
 const otherSym = test_symbol.New('bar');
-myObj['foo'] = 'bar';
+myObj.foo = 'bar';
 myObj[fooSym] = 'baz';
 myObj[otherSym] = 'bing';
 assert.strictEqual(myObj.foo, 'bar');

test/addons-napi/test_symbol/test2.js

@@ -7,7 +7,7 @@ const test_symbol = require(`./build/${common.buildType}/test_symbol`);
 
 const fooSym = test_symbol.New('foo');
 const myObj = {};
-myObj['foo'] = 'bar';
+myObj.foo = 'bar';
 myObj[fooSym] = 'baz';
 Object.keys(myObj); // -> [ 'foo' ]
 Object.getOwnPropertyNames(myObj); // -> [ 'foo' ]

test/common/index.js

@@ -502,7 +502,7 @@ exports.canCreateSymLink = function() {
     // whoami.exe needs to be the one from System32
     // If unix tools are in the path, they can shadow the one we want,
     // so use the full path while executing whoami
-    const whoamiPath = path.join(process.env['SystemRoot'],
+    const whoamiPath = path.join(process.env.SystemRoot,
                                  'System32', 'whoami.exe');
 
     let err = false;

test/common/inspector-helper.js

@@ -168,9 +168,7 @@ class InspectorSession {
         reject(message.error);
     } else {
       if (message.method === 'Debugger.scriptParsed') {
-        const script = message['params'];
-        const scriptId = script['scriptId'];
-        const url = script['url'];
+        const { scriptId, url } = message.params;
         this._scriptsIdsByUrl.set(scriptId, url);
         const fileUrl = url.startsWith('file:') ?
           url : getURLFromFilePath(url).toString();
@@ -192,12 +190,12 @@ class InspectorSession {
 
   _sendMessage(message) {
     const msg = JSON.parse(JSON.stringify(message)); // Clone!
-    msg['id'] = this._nextId++;
+    msg.id = this._nextId++;
     if (DEBUG)
       console.log('[sent]', JSON.stringify(msg));
 
     const responsePromise = new Promise((resolve, reject) => {
-      this._commandResponsePromises.set(msg['id'], { resolve, reject });
+      this._commandResponsePromises.set(msg.id, { resolve, reject });
     });
 
     return new Promise(
@@ -243,14 +241,14 @@ class InspectorSession {
   }
 
   _isBreakOnLineNotification(message, line, expectedScriptPath) {
-    if ('Debugger.paused' === message['method']) {
-      const callFrame = message['params']['callFrames'][0];
-      const location = callFrame['location'];
-      const scriptPath = this._scriptsIdsByUrl.get(location['scriptId']);
+    if ('Debugger.paused' === message.method) {
+      const callFrame = message.params.callFrames[0];
+      const location = callFrame.location;
+      const scriptPath = this._scriptsIdsByUrl.get(location.scriptId);
       assert.strictEqual(scriptPath.toString(),
                          expectedScriptPath.toString(),
                          `${scriptPath} !== ${expectedScriptPath}`);
-      assert.strictEqual(line, location['lineNumber']);
+      assert.strictEqual(line, location.lineNumber);
       return true;
     }
   }
@@ -266,12 +264,12 @@ class InspectorSession {
   _matchesConsoleOutputNotification(notification, type, values) {
     if (!Array.isArray(values))
       values = [ values ];
-    if ('Runtime.consoleAPICalled' === notification['method']) {
-      const params = notification['params'];
-      if (params['type'] === type) {
+    if ('Runtime.consoleAPICalled' === notification.method) {
+      const params = notification.params;
+      if (params.type === type) {
         let i = 0;
-        for (const value of params['args']) {
-          if (value['value'] !== values[i++])
+        for (const value of params.args) {
+          if (value.value !== values[i++])
             return false;
         }
         return i === values.length;
@@ -392,7 +390,7 @@ class NodeInstance {
 
   async sendUpgradeRequest() {
     const response = await this.httpGet(null, '/json/list');
-    const devtoolsUrl = response[0]['webSocketDebuggerUrl'];
+    const devtoolsUrl = response[0].webSocketDebuggerUrl;
     const port = await this.portPromise;
     return http.get({
       port,

test/parallel/test-cluster-fork-env.js

@@ -31,8 +31,8 @@ const cluster = require('cluster');
 
 if (cluster.isWorker) {
   const result = cluster.worker.send({
-    prop: process.env['cluster_test_prop'],
-    overwrite: process.env['cluster_test_overwrite']
+    prop: process.env.cluster_test_prop,
+    overwrite: process.env.cluster_test_overwrite
   });
 
   assert.strictEqual(result, true);
@@ -45,7 +45,7 @@ if (cluster.isWorker) {
 
   // To check that the cluster extend on the process.env we will overwrite a
   // property
-  process.env['cluster_test_overwrite'] = 'old';
+  process.env.cluster_test_overwrite = 'old';
 
   // Fork worker
   const worker = cluster.fork({

test/parallel/test-crypto-hmac.js

@@ -87,13 +87,13 @@ const wikipedia = [
 ];
 
 for (let i = 0, l = wikipedia.length; i < l; i++) {
-  for (const hash in wikipedia[i]['hmac']) {
+  for (const hash in wikipedia[i].hmac) {
     // FIPS does not support MD5.
     if (common.hasFipsCrypto && hash === 'md5')
       continue;
-    const expected = wikipedia[i]['hmac'][hash];
-    const actual = crypto.createHmac(hash, wikipedia[i]['key'])
-                         .update(wikipedia[i]['data'])
+    const expected = wikipedia[i].hmac[hash];
+    const actual = crypto.createHmac(hash, wikipedia[i].key)
+                         .update(wikipedia[i].data)
                          .digest('hex');
     assert.strictEqual(
       actual,
@@ -252,18 +252,18 @@ const rfc4231 = [
 ];
 
 for (let i = 0, l = rfc4231.length; i < l; i++) {
-  for (const hash in rfc4231[i]['hmac']) {
+  for (const hash in rfc4231[i].hmac) {
     const str = crypto.createHmac(hash, rfc4231[i].key);
     str.end(rfc4231[i].data);
     let strRes = str.read().toString('hex');
-    let actual = crypto.createHmac(hash, rfc4231[i]['key'])
-                       .update(rfc4231[i]['data'])
+    let actual = crypto.createHmac(hash, rfc4231[i].key)
+                       .update(rfc4231[i].data)
                        .digest('hex');
-    if (rfc4231[i]['truncate']) {
+    if (rfc4231[i].truncate) {
       actual = actual.substr(0, 32); // first 128 bits == 32 hex chars
       strRes = strRes.substr(0, 32);
     }
-    const expected = rfc4231[i]['hmac'][hash];
+    const expected = rfc4231[i].hmac[hash];
     assert.strictEqual(
       actual,
       expected,
@@ -384,10 +384,10 @@ const rfc2202_sha1 = [
 
 if (!common.hasFipsCrypto) {
   for (let i = 0, l = rfc2202_md5.length; i < l; i++) {
-    const actual = crypto.createHmac('md5', rfc2202_md5[i]['key'])
-      .update(rfc2202_md5[i]['data'])
+    const actual = crypto.createHmac('md5', rfc2202_md5[i].key)
+      .update(rfc2202_md5[i].data)
       .digest('hex');
-    const expected = rfc2202_md5[i]['hmac'];
+    const expected = rfc2202_md5[i].hmac;
     assert.strictEqual(
       actual,
       expected,
@@ -396,10 +396,10 @@ if (!common.hasFipsCrypto) {
   }
 }
 for (let i = 0, l = rfc2202_sha1.length; i < l; i++) {
-  const actual = crypto.createHmac('sha1', rfc2202_sha1[i]['key'])
-    .update(rfc2202_sha1[i]['data'])
+  const actual = crypto.createHmac('sha1', rfc2202_sha1[i].key)
+    .update(rfc2202_sha1[i].data)
     .digest('hex');
-  const expected = rfc2202_sha1[i]['hmac'];
+  const expected = rfc2202_sha1[i].hmac;
   assert.strictEqual(
     actual,
     expected,

test/parallel/test-event-emitter-check-listener-leaks.js

@@ -32,9 +32,9 @@ const events = require('events');
   for (let i = 0; i < 10; i++) {
     e.on('default', common.mustNotCall());
   }
-  assert.ok(!e._events['default'].hasOwnProperty('warned'));
+  assert.ok(!e._events.default.hasOwnProperty('warned'));
   e.on('default', common.mustNotCall());
-  assert.ok(e._events['default'].warned);
+  assert.ok(e._events.default.warned);
 
   // symbol
   const symbol = Symbol('symbol');
@@ -49,9 +49,9 @@ const events = require('events');
   for (let i = 0; i < 5; i++) {
     e.on('specific', common.mustNotCall());
   }
-  assert.ok(!e._events['specific'].hasOwnProperty('warned'));
+  assert.ok(!e._events.specific.hasOwnProperty('warned'));
   e.on('specific', common.mustNotCall());
-  assert.ok(e._events['specific'].warned);
+  assert.ok(e._events.specific.warned);
 
   // only one
   e.setMaxListeners(1);
@@ -65,7 +65,7 @@ const events = require('events');
   for (let i = 0; i < 1000; i++) {
     e.on('unlimited', common.mustNotCall());
   }
-  assert.ok(!e._events['unlimited'].hasOwnProperty('warned'));
+  assert.ok(!e._events.unlimited.hasOwnProperty('warned'));
 }
 
 // process-wide
@@ -76,16 +76,16 @@ const events = require('events');
   for (let i = 0; i < 42; ++i) {
     e.on('fortytwo', common.mustNotCall());
   }
-  assert.ok(!e._events['fortytwo'].hasOwnProperty('warned'));
+  assert.ok(!e._events.fortytwo.hasOwnProperty('warned'));
   e.on('fortytwo', common.mustNotCall());
-  assert.ok(e._events['fortytwo'].hasOwnProperty('warned'));
-  delete e._events['fortytwo'].warned;
+  assert.ok(e._events.fortytwo.hasOwnProperty('warned'));
+  delete e._events.fortytwo.warned;
 
   events.EventEmitter.defaultMaxListeners = 44;
   e.on('fortytwo', common.mustNotCall());
-  assert.ok(!e._events['fortytwo'].hasOwnProperty('warned'));
+  assert.ok(!e._events.fortytwo.hasOwnProperty('warned'));
   e.on('fortytwo', common.mustNotCall());
-  assert.ok(e._events['fortytwo'].hasOwnProperty('warned'));
+  assert.ok(e._events.fortytwo.hasOwnProperty('warned'));
 }
 
 // but _maxListeners still has precedence over defaultMaxListeners
@@ -94,9 +94,9 @@ const events = require('events');
   const e = new events.EventEmitter();
   e.setMaxListeners(1);
   e.on('uno', common.mustNotCall());
-  assert.ok(!e._events['uno'].hasOwnProperty('warned'));
+  assert.ok(!e._events.uno.hasOwnProperty('warned'));
   e.on('uno', common.mustNotCall());
-  assert.ok(e._events['uno'].hasOwnProperty('warned'));
+  assert.ok(e._events.uno.hasOwnProperty('warned'));
 
   // chainable
   assert.strictEqual(e, e.setMaxListeners(1));

test/parallel/test-http-automatic-headers.js

@@ -22,8 +22,8 @@ server.on('listening', common.mustCall(() => {
     assert.strictEqual(res.headers['x-date'], 'foo');
     assert.strictEqual(res.headers['x-connection'], 'bar');
     assert.strictEqual(res.headers['x-content-length'], 'baz');
-    assert(res.headers['date']);
-    assert.strictEqual(res.headers['connection'], 'keep-alive');
+    assert(res.headers.date);
+    assert.strictEqual(res.headers.connection, 'keep-alive');
     assert.strictEqual(res.headers['content-length'], '0');
     server.close();
     agent.destroy();

test/parallel/test-http-flush-headers.js

@@ -5,7 +5,7 @@ const http = require('http');
 
 const server = http.createServer();
 server.on('request', function(req, res) {
-  assert.strictEqual(req.headers['foo'], 'bar');
+  assert.strictEqual(req.headers.foo, 'bar');
   res.end('ok');
   server.close();
 });

test/parallel/test-http-flush-response-headers.js

@@ -20,7 +20,7 @@ server.listen(0, common.localhostIPv4, function() {
   req.end();
 
   function onResponse(res) {
-    assert.strictEqual(res.headers['foo'], 'bar');
+    assert.strictEqual(res.headers.foo, 'bar');
     res.destroy();
     server.close();
   }

test/parallel/test-http-proxy.js

@@ -50,7 +50,7 @@ const proxy = http.createServer(function(req, res) {
 
     console.error(`proxy res headers: ${JSON.stringify(proxy_res.headers)}`);
 
-    assert.strictEqual('world', proxy_res.headers['hello']);
+    assert.strictEqual('world', proxy_res.headers.hello);
     assert.strictEqual('text/plain', proxy_res.headers['content-type']);
     assert.deepStrictEqual(cookies, proxy_res.headers['set-cookie']);
 
@@ -81,7 +81,7 @@ function startReq() {
     console.error('got res');
     assert.strictEqual(200, res.statusCode);
 
-    assert.strictEqual('world', res.headers['hello']);
+    assert.strictEqual('world', res.headers.hello);
     assert.strictEqual('text/plain', res.headers['content-type']);
     assert.deepStrictEqual(cookies, res.headers['set-cookie']);
 

test/parallel/test-http-server-multiheaders.js

@@ -38,7 +38,7 @@ const srv = http.createServer(function(req, res) {
   assert.strictEqual(req.headers['sec-websocket-protocol'], 'chat, share');
   assert.strictEqual(req.headers['sec-websocket-extensions'],
                      'foo; 1, bar; 2, baz');
-  assert.strictEqual(req.headers['constructor'], 'foo, bar, baz');
+  assert.strictEqual(req.headers.constructor, 'foo, bar, baz');
 
   res.writeHead(200, { 'Content-Type': 'text/plain' });
   res.end('EOF');

test/parallel/test-http-write-head.js

@@ -68,7 +68,7 @@ s.listen(0, common.mustCall(runTest));
 function runTest() {
   http.get({ port: this.address().port }, common.mustCall((response) => {
     response.on('end', common.mustCall(() => {
-      assert.strictEqual(response.headers['test'], '2');
+      assert.strictEqual(response.headers.test, '2');
       assert(response.rawHeaders.includes('Test'));
       s.close();
     }));

test/parallel/test-http.js

@@ -33,8 +33,8 @@ const server = http.Server(common.mustCall(function(req, res) {
   switch (req.url) {
     case '/hello':
       assert.strictEqual(req.method, 'GET');
-      assert.strictEqual(req.headers['accept'], '*/*');
-      assert.strictEqual(req.headers['foo'], 'bar');
+      assert.strictEqual(req.headers.accept, '*/*');
+      assert.strictEqual(req.headers.foo, 'bar');
       assert.strictEqual(req.headers.cookie, 'foo=bar; bar=baz; baz=quux');
       break;
     case '/there':

test/parallel/test-http2-compat-expect-handling.js

@@ -11,7 +11,7 @@ const expectValue = 'meoww';
 const server = http2.createServer(common.mustNotCall());
 
 server.once('checkExpectation', common.mustCall((req, res) => {
-  assert.strictEqual(req.headers['expect'], expectValue);
+  assert.strictEqual(req.headers.expect, expectValue);
   res.statusCode = 417;
   res.end();
 }));