1 files changed, 16 insertions, 0 deletions
diff --git a/harness/isConstructor.js b/harness/isConstructor.js
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+++ b/harness/isConstructor.js
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+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: |
+    Test if a given function is a constructor function.
+---*/
+
+function isConstructor(f) {
+    try {
+        Reflect.construct(function(){}, [], f);
+    } catch (e) {
+        return false;
+    }
+    return true;
+}