1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/PlainDate/prototype/since/largestunit-default.js b/js/src/tests/test262/built-ins/Temporal/PlainDate/prototype/since/largestunit-default.js
new file mode 100644
index 0000000000..347254e0ab
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/PlainDate/prototype/since/largestunit-default.js
@@ -0,0 +1,22 @@
+// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plaindate.prototype.since
+description: Default value for largestUnit option is days
+includes: [compareArray.js, temporalHelpers.js]
+features: [Temporal]
+---*/
+
+const feb20 = Temporal.PlainDate.from("2020-02-01");
+const feb21 = Temporal.PlainDate.from("2021-02-01");
+TemporalHelpers.assertDuration(feb21.since(feb20), 0, 0, 0, /* days = */ 366, 0, 0, 0, 0, 0, 0, "no options");
+TemporalHelpers.assertDuration(feb21.since(feb20, undefined), 0, 0, 0, /* days = */ 366, 0, 0, 0, 0, 0, 0, "undefined options");
+TemporalHelpers.assertDuration(feb21.since(feb20, {}), 0, 0, 0, /* days = */ 366, 0, 0, 0, 0, 0, 0, "no largestUnit");
+TemporalHelpers.assertDuration(feb21.since(feb20, { largestUnit: undefined }), 0, 0, 0, /* days = */ 366, 0, 0, 0, 0, 0, 0, "undefined largestUnit");
+TemporalHelpers.assertDuration(feb21.since(feb20, { largestUnit: "days" }), 0, 0, 0, /* days = */ 366, 0, 0, 0, 0, 0, 0, "days");
+TemporalHelpers.assertDuration(feb21.since(feb20, { largestUnit: "auto" }), 0, 0, 0, /* days = */ 366, 0, 0, 0, 0, 0, 0, "auto");
+TemporalHelpers.assertDuration(feb21.since(feb20, () => {}), 0, 0, 0, /* days = */ 366, 0, 0, 0, 0, 0, 0, "no largestUnit (function)");
+
+reportCompare(0, 0);