1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/this-not-object-throws.js b/js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/this-not-object-throws.js
new file mode 100644
index 0000000000..933a905e35
--- /dev/null
+++ b/js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/this-not-object-throws.js
@@ -0,0 +1,54 @@
+// |reftest| skip-if(!this.hasOwnProperty('FinalizationRegistry')) -- FinalizationRegistry is not enabled unconditionally
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-finalization-registry.prototype.register
+description: Throws a TypeError if this is not an Object
+info: |
+  FinalizationRegistry.prototype.register ( target , holdings [, unregisterToken ] )
+
+  1. Let finalizationRegistry be the this value.
+  2. If Type(finalizationRegistry) is not Object, throw a TypeError exception.
+  3. If Type(target) is not Object, throw a TypeError exception.
+  4. If finalizationRegistry does not have a [[Cells]] internal slot, throw a TypeError exception.
+  5. If Type(unregisterToken) is not Object,
+    a. If unregisterToken is not undefined, throw a TypeError exception.
+  ...
+features: [FinalizationRegistry]
+---*/
+
+assert.sameValue(typeof FinalizationRegistry.prototype.register, 'function');
+
+var register = FinalizationRegistry.prototype.register;
+
+assert.throws(TypeError, function() {
+  register.call(undefined, {});
+}, 'undefined');
+
+assert.throws(TypeError, function() {
+  register.call(null, {});
+}, 'null');
+
+assert.throws(TypeError, function() {
+  register.call(true, {});
+}, 'true');
+
+assert.throws(TypeError, function() {
+  register.call(false, {});
+}, 'false');
+
+assert.throws(TypeError, function() {
+  register.call(1, {});
+}, 'number');
+
+assert.throws(TypeError, function() {
+  register.call('object', {});
+}, 'string');
+
+var s = Symbol();
+assert.throws(TypeError, function() {
+  register.call(s, {});
+}, 'symbol');
+
+reportCompare(0, 0);