From a5eaadfb43d425d0bcdb8bc4d642ee8c38f52e3e Mon Sep 17 00:00:00 2001
From: Tim Chevalier <tjc@igalia.com>
Date: Mon, 24 Nov 2025 10:41:16 -0800
Subject: [PATCH] Temporal: Add order-of-operations tests for toPlainDate

Add order-of-operations tests for toPlainDate for PlainMonthDay
and PlainYearMonth
---
 .../toPlainDate/order-of-operations.js        | 29 +++++++++++++++++++
 .../toPlainDate/order-of-operations.js        | 29 +++++++++++++++++++
 2 files changed, 58 insertions(+)
 create mode 100644 test/built-ins/Temporal/PlainMonthDay/prototype/toPlainDate/order-of-operations.js
 create mode 100644 test/built-ins/Temporal/PlainYearMonth/prototype/toPlainDate/order-of-operations.js

diff --git a/test/built-ins/Temporal/PlainMonthDay/prototype/toPlainDate/order-of-operations.js b/test/built-ins/Temporal/PlainMonthDay/prototype/toPlainDate/order-of-operations.js
new file mode 100644
index 0000000000..416b5bfa86
--- /dev/null
+++ b/test/built-ins/Temporal/PlainMonthDay/prototype/toPlainDate/order-of-operations.js
@@ -0,0 +1,29 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plainmonthday.toplaindate
+description: Properties on an object passed to toPlainDate() are accessed in the correct order
+includes: [compareArray.js, temporalHelpers.js]
+features: [Temporal]
+---*/
+
+const expected = [
+  "get fields.year",
+  "get fields.year.valueOf",
+  "call fields.year.valueOf",
+];
+const actual = [];
+
+const fields = TemporalHelpers.propertyBagObserver(actual, {
+  year: 1.7,
+  month: 1.7,
+  monthCode: "M01",
+  day: 1.7,
+  calendar: "iso8601",
+}, "fields", ["calendar"]);
+
+const pmd = new Temporal.PlainMonthDay(5, 2);
+
+pmd.toPlainDate(fields);
+assert.compareArray(actual, expected, "order of operations");
diff --git a/test/built-ins/Temporal/PlainYearMonth/prototype/toPlainDate/order-of-operations.js b/test/built-ins/Temporal/PlainYearMonth/prototype/toPlainDate/order-of-operations.js
new file mode 100644
index 0000000000..8e8ba5f255
--- /dev/null
+++ b/test/built-ins/Temporal/PlainYearMonth/prototype/toPlainDate/order-of-operations.js
@@ -0,0 +1,29 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plainyearmonth.toplaindate
+description: Properties on an object passed to toPlainDate() are accessed in the correct order
+includes: [compareArray.js, temporalHelpers.js]
+features: [Temporal]
+---*/
+
+const expected = [
+  "get fields.day",
+  "get fields.day.valueOf",
+  "call fields.day.valueOf",
+];
+const actual = [];
+
+const fields = TemporalHelpers.propertyBagObserver(actual, {
+  year: 1.7,
+  month: 1.7,
+  monthCode: "M01",
+  day: 1,
+  calendar: "iso8601",
+}, "fields", ["calendar"]);
+
+const pym = new Temporal.PlainYearMonth(2005, 2);
+
+pym.toPlainDate(fields);
+assert.compareArray(actual, expected, "order of operations");