1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/fromEntries/to-property-key.js b/js/src/tests/test262/built-ins/Object/fromEntries/to-property-key.js
new file mode 100644
index 0000000000..539e052848
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/fromEntries/to-property-key.js
@@ -0,0 +1,19 @@
+// Copyright (C) 2018 Kevin Gibbons. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: Coerces keys to strings using ToPropertyKey.
+esid: sec-object.fromentries
+features: [Symbol.toPrimitive, Object.fromEntries]
+---*/
+
+var key = {
+  [Symbol.toPrimitive]: function(hint) {
+    assert.sameValue(hint, 'string');
+    return 'key';
+  },
+};
+var result = Object.fromEntries([[key, 'value']]);
+assert.sameValue(result.key, 'value');
+
+reportCompare(0, 0);