1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/PlainDateTime/compare/read-time-fields-before-datefromfields.js b/js/src/tests/test262/built-ins/Temporal/PlainDateTime/compare/read-time-fields-before-datefromfields.js
new file mode 100644
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+++ b/js/src/tests/test262/built-ins/Temporal/PlainDateTime/compare/read-time-fields-before-datefromfields.js
@@ -0,0 +1,30 @@
+// |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.plaindatetime.compare
+description: The time fields are read from the object before being passed to dateFromFields().
+info: |
+    sec-temporal.plaindatetime.compare steps 1–2:
+      1. Set _one_ to ? ToTemporalDateTime(_one_).
+      2. Set _two_ to ? ToTemporalDateTime(_two_).
+    sec-temporal-totemporaldatetime step 2.e:
+      e. Let _result_ be ? InterpretTemporalDateTimeFields(_calendar_, _fields_, _options_).
+    sec-temporal-interprettemporaldatetimefields steps 1–2:
+      1. Let _timeResult_ be ? ToTemporalTimeRecord(_fields_).
+      2. Let _temporalDate_ be ? DateFromFields(_calendar_, _fields_, _options_).
+includes: [temporalHelpers.js]
+features: [Temporal]
+---*/
+
+const calendar = TemporalHelpers.calendarMakeInfinityTime();
+const result = Temporal.PlainDateTime.compare(
+  { year: 2000, month: 5, day: 2, hour: 12, minute: 34, second: 56, millisecond: 987, microsecond: 654, nanosecond: 321, calendar },
+  { year: 2000, month: 5, day: 2, hour: 6, minute: 54, second: 32, millisecond: 123, microsecond: 456, nanosecond: 789, calendar },
+);
+
+// will be 0 if the time fields are coerced to their max values due to Infinity
+assert.sameValue(result, 1, "comparison result");
+
+reportCompare(0, 0);