1 files changed, 67 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/prototype/toString/proxy-function.js b/js/src/tests/test262/built-ins/Object/prototype/toString/proxy-function.js
new file mode 100644
index 0000000000..70633a87e4
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+++ b/js/src/tests/test262/built-ins/Object/prototype/toString/proxy-function.js
@@ -0,0 +1,67 @@
+// Copyright (C) 2016 Apple Inc. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-object.prototype.tostring
+description: Proxy of an function is treated as an function
+info: |
+  [...]
+
+  9.5.14 ProxyCreate(target, handler)
+
+  [...]
+  7. If IsCallable(target) is true, then
+    a. Set the [[Call]] internal method of P as specified in 9.5.12.
+  [...]
+
+features: [generators, async-functions, Proxy, Symbol.toStringTag]
+---*/
+
+var functionProxy = new Proxy(function() {}, {});
+var functionProxyProxy = new Proxy(functionProxy, {});
+
+assert.sameValue(
+  Object.prototype.toString.call(functionProxy), '[object Function]', 'function proxy'
+);
+assert.sameValue(
+  Object.prototype.toString.call(functionProxyProxy),
+  '[object Function]',
+  'proxy for function proxy'
+);
+
+var arrowProxy = new Proxy(() => {}, {});
+var arrowProxyProxy = new Proxy(arrowProxy, {});
+
+assert.sameValue(
+  Object.prototype.toString.call(arrowProxy), '[object Function]', 'arrow function proxy'
+);
+assert.sameValue(
+  Object.prototype.toString.call(arrowProxyProxy),
+  '[object Function]',
+  'proxy for arrow function proxy'
+);
+
+var generatorProxy = new Proxy(function*() {}, {});
+var generatorProxyProxy = new Proxy(generatorProxy, {});
+
+assert.sameValue(
+  Object.prototype.toString.call(generatorProxy), '[object GeneratorFunction]', 'generator function proxy'
+);
+assert.sameValue(
+  Object.prototype.toString.call(generatorProxyProxy),
+  '[object GeneratorFunction]',
+  'proxy for generator function proxy'
+);
+
+var asyncProxy = new Proxy(async function() {}, {});
+var asyncProxyProxy = new Proxy(asyncProxy, {});
+
+assert.sameValue(
+  Object.prototype.toString.call(asyncProxy), '[object AsyncFunction]', 'async function proxy'
+);
+assert.sameValue(
+  Object.prototype.toString.call(asyncProxyProxy),
+  '[object AsyncFunction]',
+  'proxy for async function proxy'
+);
+
+reportCompare(0, 0);