1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/PlainYearMonth/prototype/subtract/argument-lower-units.js b/js/src/tests/test262/built-ins/Temporal/PlainYearMonth/prototype/subtract/argument-lower-units.js
new file mode 100644
index 0000000000..ea3156580b
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/PlainYearMonth/prototype/subtract/argument-lower-units.js
@@ -0,0 +1,40 @@
+// |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.plainyearmonth.prototype.subtract
+description: Using lower units in subtract() works
+includes: [temporalHelpers.js]
+features: [Temporal]
+---*/
+
+const ym = Temporal.PlainYearMonth.from("2019-11");
+
+const tests = [
+  [{ days: 1 }, 2019, 11, "M11"],
+  [{ hours: 1 }, 2019, 11, "M11"],
+  [{ minutes: 1 }, 2019, 11, "M11"],
+  [{ seconds: 1 }, 2019, 11, "M11"],
+  [{ milliseconds: 1 }, 2019, 11, "M11"],
+  [{ microseconds: 1 }, 2019, 11, "M11"],
+  [{ nanoseconds: 1 }, 2019, 11, "M11"],
+  [{ days: 29 }, 2019, 11, "M11"],
+  [{ days: 30 }, 2019, 10, "M10"],
+  [{ days: 60 }, 2019, 10, "M10"],
+  [{ days: 61 }, 2019, 9, "M09"],
+  [{ hours: 720 }, 2019, 10, "M10"],
+  [{ minutes: 43200 }, 2019, 10, "M10"],
+  [{ seconds: 2592000 }, 2019, 10, "M10"],
+  [{ milliseconds: 2592000_000 }, 2019, 10, "M10"],
+  [{ microseconds: 2592000_000_000 }, 2019, 10, "M10"],
+  [{ nanoseconds: 2592000_000_000_000 }, 2019, 10, "M10"],
+];
+
+for (const [argument, ...expected] of tests) {
+  TemporalHelpers.assertPlainYearMonth(ym.subtract(argument), ...expected, "no options");
+  TemporalHelpers.assertPlainYearMonth(ym.subtract(argument, { overflow: "constrain" }), ...expected, "constrain");
+  TemporalHelpers.assertPlainYearMonth(ym.subtract(argument, { overflow: "reject" }), ...expected, "reject");
+}
+
+reportCompare(0, 0);