1 files changed, 45 insertions, 0 deletions
diff --git a/deps/node/benchmark/util/inspect-array.js b/deps/node/benchmark/util/inspect-array.js
new file mode 100644
index 00000000..4fd73785
--- /dev/null
+++ b/deps/node/benchmark/util/inspect-array.js
@@ -0,0 +1,45 @@
+'use strict';
+
+const common = require('../common');
+const util = require('util');
+
+const bench = common.createBenchmark(main, {
+  n: [5e2],
+  len: [1e2, 1e5],
+  type: [
+    'denseArray',
+    'sparseArray',
+    'mixedArray',
+    'denseArray_showHidden',
+  ]
+});
+
+function main({ n, len, type }) {
+  var arr = Array(len);
+  var i, opts;
+
+  switch (type) {
+    case 'denseArray_showHidden':
+      opts = { showHidden: true };
+      arr = arr.fill('denseArray');
+      break;
+      // For testing, if supplied with an empty type, default to denseArray.
+    case '':
+    case 'denseArray':
+      arr = arr.fill('denseArray');
+      break;
+    case 'sparseArray':
+      break;
+    case 'mixedArray':
+      for (i = 0; i < n; i += 2)
+        arr[i] = i;
+      break;
+    default:
+      throw new Error(`Unsupported type ${type}`);
+  }
+  bench.start();
+  for (i = 0; i < n; i++) {
+    util.inspect(arr, opts);
+  }
+  bench.end(n);
+}