1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/ZonedDateTime/prototype/add/calendar-dateadd.js b/js/src/tests/test262/built-ins/Temporal/ZonedDateTime/prototype/add/calendar-dateadd.js
new file mode 100644
index 0000000000..9cc7fd7766
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/ZonedDateTime/prototype/add/calendar-dateadd.js
@@ -0,0 +1,33 @@
+// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
+// Copyright (C) 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.zoneddatetime.prototype.add
+description: ZonedDateTime.prototype.add should call dateAdd with the appropriate values.
+includes: [temporalHelpers.js]
+features: [Temporal]
+---*/
+
+let calls = 0;
+class CustomCalendar extends Temporal.Calendar {
+  constructor() {
+    super("iso8601");
+  }
+  dateAdd(plainDate, duration, options) {
+    ++calls;
+    TemporalHelpers.assertPlainDate(plainDate, 2020, 3, "M03", 14, "plainDate argument");
+    TemporalHelpers.assertDuration(duration, 0, 10, 0, 0, 0, 0, 0, 0, 0, 0, "duration argument");
+    assert.sameValue(typeof options, "object", "options argument: type");
+    assert.sameValue(Object.getPrototypeOf(options), null, "options argument: prototype");
+    return super.dateAdd(plainDate, duration, options);
+  }
+}
+
+const zonedDateTime = new Temporal.ZonedDateTime(1584189296_987654321n,
+  new Temporal.TimeZone("UTC"), new CustomCalendar());
+const result = zonedDateTime.add({ months: 10, hours: 14 });
+assert.sameValue(result.epochNanoseconds, 1610678096_987654321n);
+assert.sameValue(calls, 1, "should have called dateAdd");
+
+reportCompare(0, 0);