Temporal: Some more tests for PlainDateTime#with. (tc39#3481)

Author: Ms2ger

test/built-ins/Temporal/PlainDateTime/prototype/with/argument-not-object.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.plaindatetime.prototype.with
+description: Non-object arguments throw.
+features: [Temporal]
+---*/
+
+const instance = new Temporal.PlainDateTime(2000, 5, 2, 12, 34, 56, 987, 654, 321);
+const args = [
+  undefined,
+  null,
+  true,
+  "2020-01-12T10:20:30",
+  Symbol(),
+  2020,
+  2020n,
+];
+for (const argument of args) {
+  assert.throws(TypeError, () => instance.with(argument), `Does not support ${typeof argument}`);
+}

test/built-ins/Temporal/PlainDateTime/prototype/with/calendar-options.js

@@ -0,0 +1,27 @@
+// 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.plaindatetime.prototype.with
+description: The options argument is passed through to Calendar#dateFromFields as-is.
+includes: [temporalHelpers.js]
+features: [Temporal]
+---*/
+
+const options = {};
+let calledDateFromFields = 0;
+class Calendar extends Temporal.Calendar {
+  constructor() {
+    super("iso8601");
+  }
+  dateFromFields(fields, optionsArg) {
+    ++calledDateFromFields;
+    assert.sameValue(optionsArg, options, "should pass options object through");
+    return super.dateFromFields(fields, optionsArg);
+  }
+};
+const calendar = new Calendar();
+const plaindatetime = new Temporal.PlainDateTime(2000, 5, 2, 12, 34, 56, 987, 654, 321, calendar);
+const result = plaindatetime.with({ year: 2005 }, options);
+TemporalHelpers.assertPlainDateTime(result, 2005, 5, "M05", 2, 12, 34, 56, 987, 654, 321);
+assert.sameValue(calledDateFromFields, 1, "should have called overridden dateFromFields once");

test/built-ins/Temporal/PlainDateTime/prototype/with/calendar-temporal-object-throws.js

@@ -0,0 +1,33 @@
+// Copyright (C) 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: Throws if a Temporal object with a calendar is supplied
+esid: sec-temporal.plaindatetime.prototype.with
+features: [Temporal]
+---*/
+
+const datetime = new Temporal.PlainDateTime(1976, 11, 18, 15, 23, 30, 123, 456, 789);
+
+const values = [
+  Temporal.PlainDate.from("2022-04-12"),
+  Temporal.PlainDateTime.from("2022-04-12T15:19:45"),
+  Temporal.PlainMonthDay.from("04-12"),
+  Temporal.PlainTime.from("15:19:45"),
+  Temporal.PlainYearMonth.from("2022-04"),
+  Temporal.ZonedDateTime.from("2022-04-12T15:19:45[UTC]"),
+];
+
+for (const value of values) {
+  Object.defineProperty(value, "calendar", {
+    get() { throw new Test262Error("should not get calendar property") }
+  });
+  Object.defineProperty(value, "timeZone", {
+    get() { throw new Test262Error("should not get timeZone property") }
+  });
+  assert.throws(
+    TypeError,
+    () => datetime.with(value),
+    "throws with temporal object"
+  );
+}

test/built-ins/Temporal/PlainDateTime/prototype/with/order-of-operations.js

@@ -42,6 +42,12 @@ const expected = [
   "get year",
   "get year.valueOf",
   "call year.valueOf",
+  "get options.overflow",
+  "get options.overflow.toString",
+  "call options.overflow.toString",
+  "get options.overflow",
+  "get options.overflow.toString",
+  "call options.overflow.toString",
 ];
 const actual = [];
 const fields = {
@@ -70,7 +76,13 @@ const argument = new Proxy(fields, {
     return key in target;
   },
 });
-const result = instance.with(argument);
+const options = {
+  get overflow() {
+    actual.push("get options.overflow");
+    return TemporalHelpers.toPrimitiveObserver(actual, "constrain", "options.overflow");
+  }
+};
+const result = instance.with(argument, options);
 TemporalHelpers.assertPlainDateTime(result, 1, 1, "M01", 1, 1, 1, 1, 1, 1, 1);
 assert.sameValue(result.calendar.id, "iso8601", "calendar result");
 assert.compareArray(actual, expected, "order of operations");