test: add benchmark tests for es

Added parallel test benchmark for es

PR-URL: nodejs/node#16076
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

benchmark/es/defaultparams-bench.js

@@ -42,6 +42,8 @@ function main(conf) {
   const n = +conf.millions * 1e6;
 
   switch (conf.method) {
+    case '':
+      // Empty string falls through to next line as default, mostly for tests.
     case 'withoutdefaults':
       runOldStyleDefaults(n);
       break;

benchmark/es/destructuring-bench.js

@@ -38,6 +38,8 @@ function main(conf) {
   const n = +conf.millions * 1e6;
 
   switch (conf.method) {
+    case '':
+      // Empty string falls through to next line as default, mostly for tests.
     case 'swap':
       runSwapManual(n);
       break;

benchmark/es/destructuring-object-bench.js

@@ -37,6 +37,8 @@ function main(conf) {
   const n = +conf.millions * 1e6;
 
   switch (conf.method) {
+    case '':
+      // Empty string falls through to next line as default, mostly for tests.
     case 'normal':
       runNormal(n);
       break;

benchmark/es/foreach-bench.js

@@ -63,6 +63,8 @@ function main(conf) {
     items[i] = i;
 
   switch (conf.method) {
+    case '':
+      // Empty string falls through to next line as default, mostly for tests.
     case 'for':
       fn = useFor;
       break;

benchmark/es/map-bench.js

@@ -112,6 +112,8 @@ function main(conf) {
   const n = +conf.millions * 1e6;
 
   switch (conf.method) {
+    case '':
+      // Empty string falls through to next line as default, mostly for tests.
     case 'object':
       runObject(n);
       break;

benchmark/es/restparams-bench.js

@@ -64,6 +64,8 @@ function main(conf) {
   const n = +conf.millions * 1e6;
 
   switch (conf.method) {
+    case '':
+      // Empty string falls through to next line as default, mostly for tests.
     case 'copy':
       runCopyArguments(n);
       break;

benchmark/es/spread-bench.js

@@ -33,6 +33,8 @@ function main(conf) {
     args[i] = i;
 
   switch (conf.method) {
+    case '':
+      // Empty string falls through to next line as default, mostly for tests.
     case 'apply':
       bench.start();
       for (i = 0; i < n; i++)

benchmark/es/string-concatenations.js

@@ -19,14 +19,15 @@ const bench = common.createBenchmark(main, configs);
 
 function main(conf) {
   const n = +conf.n;
-  const mode = conf.mode;
 
   const str = 'abc';
   const num = 123;
 
   let string;
 
-  switch (mode) {
+  switch (conf.mode) {
+    case '':
+      // Empty string falls through to next line as default, mostly for tests.
     case 'multi-concat':
       bench.start();
       for (let i = 0; i < n; i++)
@@ -63,6 +64,8 @@ function main(conf) {
         string = `${num}`;
       bench.end(n);
       break;
+    default:
+      throw new Error('Unexpected method');
   }
 
   return string;

benchmark/es/string-repeat.js

@@ -19,16 +19,23 @@ function main(conf) {
 
   let str;
 
-  if (conf.mode === 'Array') {
-    bench.start();
-    for (let i = 0; i < n; i++)
-      str = new Array(size + 1).join(character);
-    bench.end(n);
-  } else {
-    bench.start();
-    for (let i = 0; i < n; i++)
-      str = character.repeat(size);
-    bench.end(n);
+  switch (conf.mode) {
+    case '':
+      // Empty string falls through to next line as default, mostly for tests.
+    case 'Array':
+      bench.start();
+      for (let i = 0; i < n; i++)
+        str = new Array(size + 1).join(character);
+      bench.end(n);
+      break;
+    case 'repeat':
+      bench.start();
+      for (let i = 0; i < n; i++)
+        str = character.repeat(size);
+      bench.end(n);
+      break;
+    default:
+      throw new Error('Unexpected method');
   }
 
   assert.strictEqual([...str].length, size);

test/parallel/test-benchmark-es.js

@@ -0,0 +1,18 @@
+'use strict';
+
+require('../common');
+
+const runBenchmark = require('../common/benchmark');
+
+runBenchmark('es',
+             [
+               'method=',
+               'millions=0.000001',
+               'count=1',
+               'context=null',
+               'rest=0',
+               'mode=',
+               'n=1',
+               'encoding=ascii',
+               'size=1e1'
+             ]);