1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/PlainYearMonth/from/observable-get-overflow-argument-primitive.js b/js/src/tests/test262/built-ins/Temporal/PlainYearMonth/from/observable-get-overflow-argument-primitive.js
new file mode 100644
index 0000000000..bb5d83b298
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/PlainYearMonth/from/observable-get-overflow-argument-primitive.js
@@ -0,0 +1,37 @@
+// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
+// Copyright (C) 2023 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plainyearmonth.from
+description: overflow property is extracted with string argument.
+includes: [compareArray.js, temporalHelpers.js]
+features: [Temporal]
+---*/
+
+const expected = [
+  "ownKeys options",
+  "getOwnPropertyDescriptor options.overflow",
+  "get options.overflow",
+  "get options.overflow.toString",
+  "call options.overflow.toString",
+];
+
+let actual = [];
+const options = TemporalHelpers.propertyBagObserver(actual, { overflow: "constrain" }, "options");
+
+const result = Temporal.PlainYearMonth.from("2021-05", options);
+assert.compareArray(actual, expected, "Successful call");
+TemporalHelpers.assertPlainYearMonth(result, 2021, 5, "M05");
+
+actual.splice(0);  // empty it for the next check
+const failureExpected = [
+  "ownKeys options",
+  "getOwnPropertyDescriptor options.overflow",
+  "get options.overflow",
+];
+
+assert.throws(TypeError, () => Temporal.PlainYearMonth.from(7, options));
+assert.compareArray(actual, failureExpected, "Failing call");
+
+reportCompare(0, 0);