1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/filter/coerce-result-to-boolean.js b/js/src/tests/non262/AsyncIterator/prototype/filter/coerce-result-to-boolean.js
new file mode 100644
index 0000000000..23e3a317eb
--- /dev/null
+++ b/js/src/tests/non262/AsyncIterator/prototype/filter/coerce-result-to-boolean.js
@@ -0,0 +1,25 @@
+// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator'))
+
+async function* gen(iterable) {
+  yield* iterable;
+}
+
+// All truthy values are kept.
+const truthyValues = [true, 1, [], {}, 'test'];
+(async () => {
+  for await (const value of gen([...truthyValues]).filter(x => x)) {
+    assertEq(truthyValues.shift(), value);
+  }
+})();
+
+// All falsy values are filtered out.
+const falsyValues = [false, 0, '', null, undefined, NaN, -0, 0n, createIsHTMLDDA()];
+gen(falsyValues).filter(x => x).next().then(
+  ({done, value}) => {
+    assertEq(done, true);
+    assertEq(value, undefined);
+  }
+);
+
+if (typeof reportCompare === 'function')
+  reportCompare(0, 0);