1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/prototype/take-drop-throw-eagerly-on-non-integer.js b/js/src/tests/non262/Iterator/prototype/take-drop-throw-eagerly-on-non-integer.js
new file mode 100644
index 0000000000..3e1333ab37
--- /dev/null
+++ b/js/src/tests/non262/Iterator/prototype/take-drop-throw-eagerly-on-non-integer.js
@@ -0,0 +1,32 @@
+// |reftest| skip-if(!this.hasOwnProperty('Iterator'))
+
+//
+//
+/*---
+esid: pending
+description: `take` and `drop` throw eagerly when passed values that can't be converted to numbers.
+info: >
+  Iterator Helpers proposal 2.1.5.4 and 2.1.5.5
+features: [iterator-helpers]
+---*/
+
+const iter = [].values();
+const methods = [
+  value => iter.take(value),
+  value => iter.drop(value),
+];
+
+const objectWithToPrimitive = {
+  [Symbol.toPrimitive]() {
+    return {};
+  }
+};
+
+for (const method of methods) {
+  assertThrowsInstanceOf(() => method(0n), TypeError);
+  assertThrowsInstanceOf(() => method(Symbol('')), TypeError);
+  assertThrowsInstanceOf(() => method(objectWithToPrimitive), TypeError);
+}
+
+if (typeof reportCompare == 'function')
+  reportCompare(0, 0);