Test PlainYearMonth.prototype.with.

test/built-ins/Temporal/PlainYearMonth/prototype/with/argument-calendar-field.js

@@ -0,0 +1,11 @@
+// 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.with
+description: Throw if the argument has a calendar field
+features: [Temporal]
+---*/
+
+const ym = Temporal.PlainYearMonth.from("2019-10");
+assert.throws(TypeError, () => ym.with({ year: 2021, calendar: "iso8601" }));

test/built-ins/Temporal/PlainYearMonth/prototype/with/argument-missing-fields.js

@@ -0,0 +1,12 @@
+// 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.with
+description: TypeError thrown when argument doesn't contain any of the supported properties
+features: [Temporal]
+---*/
+
+const ym = Temporal.PlainYearMonth.from("2019-10");
+assert.throws(TypeError, () => ym.with({}), "No properties");
+assert.throws(TypeError, () => ym.with({ months: 12 }), "Only plural 'months' property");

test/built-ins/Temporal/PlainYearMonth/prototype/with/argument-timezone-field.js

@@ -0,0 +1,11 @@
+// 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.with
+description: Throw if the argument has a timeZone field
+features: [Temporal]
+---*/
+
+const ym = Temporal.PlainYearMonth.from("2019-10");
+assert.throws(TypeError, () => ym.with({ year: 2021, timeZone: "UTC" }));

test/built-ins/Temporal/PlainYearMonth/prototype/with/basic.js

@@ -0,0 +1,23 @@
+// 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.with
+description: Basic tests for with
+includes: [temporalHelpers.js]
+features: [Temporal]
+---*/
+
+const ym = Temporal.PlainYearMonth.from("2019-10");
+
+TemporalHelpers.assertPlainYearMonth(ym.with({ year: 2020 }), 2020, 10, "M10", "year");
+TemporalHelpers.assertPlainYearMonth(ym.with({ month: 9 }), 2019, 9, "M09", "month");
+TemporalHelpers.assertPlainYearMonth(ym.with({ monthCode: "M09" }), 2019, 9, "M09", "monthCode");
+
+assert.throws(RangeError, () => ym.with({ month: 9, monthCode: "M10" }), "month/monthCode mismatch");
+TemporalHelpers.assertPlainYearMonth(ym.with({ month: 1, years: 2020 }), 2019, 1, "M01", "plural 'years'");
+
+const withDay = ym.with({ year: 2019, get day() { throw new Test262Error("should not read the day property") } });
+TemporalHelpers.assertPlainYearMonth(withDay, 2019, 10, "M10", "day property");
+assert.sameValue(withDay.getISOFields().isoDay, 1);
+

test/built-ins/Temporal/PlainYearMonth/prototype/with/options-wrong-type.js

@@ -0,0 +1,22 @@
+// 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.with
+description: TypeError thrown when options argument is a primitive
+features: [BigInt, Symbol, Temporal]
+---*/
+
+const values = [
+  null,
+  true,
+  "2021-01",
+  Symbol(),
+  1,
+  2n,
+];
+
+const ym = Temporal.PlainYearMonth.from("2019-10");
+values.forEach((value) => {
+  assert.throws(TypeError, () => ym.with({ year: 2020 }, value), `TypeError on wrong argument type ${typeof value}`);
+});

test/built-ins/Temporal/PlainYearMonth/prototype/with/overflow-invalid-string.js

@@ -17,4 +17,6 @@ features: [Temporal]
 ---*/
 
 const yearmonth = new Temporal.PlainYearMonth(2000, 5);
-assert.throws(RangeError, () => yearmonth.with({ month: 8 }, { overflow: "other string" }));
+for (const overflow of ["", "CONSTRAIN", "balance", "other string", "constra\u0131n"]) {
+  assert.throws(RangeError, () => yearmonth.with({ month: 8 }, { overflow }));
+}

test/built-ins/Temporal/PlainYearMonth/prototype/with/overflow-undefined.js

@@ -22,3 +22,5 @@ const explicit = yearmonth.with({ month: 15 }, { overflow: undefined });
 TemporalHelpers.assertPlainYearMonth(explicit, 2000, 12, "M12", "default overflow is constrain");
 const implicit = yearmonth.with({ month: 15 }, {});
 TemporalHelpers.assertPlainYearMonth(implicit, 2000, 12, "M12", "default overflow is constrain");
+const lambda = yearmonth.with({ month: 15 }, () => {});
+TemporalHelpers.assertPlainYearMonth(lambda, 2000, 12, "M12", "default overflow is constrain");