Temporal: Extend tests for PlainDate#toString.

test/built-ins/Temporal/PlainDate/prototype/toString/calendar-tostring.js

@@ -0,0 +1,28 @@
+// 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.plaindate.protoype.tostring
+description: Should always call 'toString' on the calendar once.
+features: [Temporal]
+---*/
+
+let calls;
+const customCalendar = {
+  toString() {
+    ++calls;
+    return "custom";
+  }
+};
+const date = new Temporal.PlainDate(2000, 5, 2, customCalendar);
+[
+  ["always", "2000-05-02[u-ca=custom]"],
+  ["auto", "2000-05-02[u-ca=custom]"],
+  ["never", "2000-05-02"],
+  [undefined, "2000-05-02[u-ca=custom]"],
+].forEach(([calendarName, expected]) => {
+  calls = 0;
+  const result = date.toString({ calendarName });
+  assert.sameValue(result, expected, `calendarName = ${calendarName}: expected ${expected}`);
+  assert.sameValue(calls, 1, `calendarName = ${calendarName}: expected one call to 'toString'`);
+});

test/built-ins/Temporal/PlainDate/prototype/toString/calendarname-always.js

@@ -7,15 +7,16 @@ description: always value for calendarName option
 features: [Temporal]
 ---*/
 
-const calendar = {
+const customCalendar = {
   toString() { return "custom"; }
 };
-const date1 = new Temporal.PlainDate(2000, 5, 2);
+const customISOCalendar = {
-const date2 = new Temporal.PlainDate(2000, 5, 2, calendar);
+  toString() { return "iso8601"; }
-
+};
 [
-  [date1, "2000-05-02[u-ca=iso8601]"],
+  [new Temporal.PlainDate(2000, 5, 2), "2000-05-02[u-ca=iso8601]"],
-  [date2, "2000-05-02[u-ca=custom]"],
+  [new Temporal.PlainDate(2000, 5, 2, customCalendar), "2000-05-02[u-ca=custom]"],
+  [new Temporal.PlainDate(2000, 5, 2, customISOCalendar), "2000-05-02[u-ca=iso8601]"],
 ].forEach(([date, expected]) => {
   const result = date.toString({ calendarName: "always" });
   assert.sameValue(result, expected, "expected " + expected);

test/built-ins/Temporal/PlainDate/prototype/toString/calendarname-auto.js

@@ -7,15 +7,16 @@ description: auto value for calendarName option
 features: [Temporal]
 ---*/
 
-const calendar = {
+const customCalendar = {
   toString() { return "custom"; }
 };
-const date1 = new Temporal.PlainDate(2000, 5, 2);
+const customISOCalendar = {
-const date2 = new Temporal.PlainDate(2000, 5, 2, calendar);
+  toString() { return "iso8601"; }
-
+};
 [
-  [date1, "2000-05-02"],
+  [new Temporal.PlainDate(2000, 5, 2), "2000-05-02"],
-  [date2, "2000-05-02[u-ca=custom]"],
+  [new Temporal.PlainDate(2000, 5, 2, customCalendar), "2000-05-02[u-ca=custom]"],
+  [new Temporal.PlainDate(2000, 5, 2, customISOCalendar), "2000-05-02"],
 ].forEach(([date, expected]) => {
   const result = date.toString({ calendarName: "auto" });
   assert.sameValue(result, expected, "expected " + expected);

test/built-ins/Temporal/PlainDate/prototype/toString/calendarname-invalid-string.js

@@ -15,7 +15,7 @@ features: [Temporal]
 ---*/
 
 const date = new Temporal.PlainDate(2000, 5, 2);
-const values = ["ALWAYS", "sometimes", "other string"];
+const values = ["ALWAYS", "sometimes", "other string", "auto\0"];
 
 for (const calendarName of values) {
   assert.throws(RangeError, () => date.toString({ calendarName }));

test/built-ins/Temporal/PlainDate/prototype/toString/calendarname-never.js

@@ -7,15 +7,16 @@ description: never value for calendarName option
 features: [Temporal]
 ---*/
 
-const calendar = {
+const customCalendar = {
   toString() { return "custom"; }
 };
-const date1 = new Temporal.PlainDate(2000, 5, 2);
+const customISOCalendar = {
-const date2 = new Temporal.PlainDate(2000, 5, 2, calendar);
+  toString() { return "iso8601"; }
-
+};
 [
-  [date1, "2000-05-02"],
+  [new Temporal.PlainDate(2000, 5, 2), "2000-05-02"],
-  [date2, "2000-05-02"],
+  [new Temporal.PlainDate(2000, 5, 2, customCalendar), "2000-05-02"],
+  [new Temporal.PlainDate(2000, 5, 2, customISOCalendar), "2000-05-02"],
 ].forEach(([date, expected]) => {
   const result = date.toString({ calendarName: "never" });
   assert.sameValue(result, expected, "expected " + expected);

test/built-ins/Temporal/PlainDate/prototype/toString/calendarname-undefined.js

@@ -14,15 +14,16 @@ info: |
 features: [Temporal]
 ---*/
 
-const calendar = {
+const customCalendar = {
   toString() { return "custom"; }
 };
-const date1 = new Temporal.PlainDate(2000, 5, 2);
+const customISOCalendar = {
-const date2 = new Temporal.PlainDate(2000, 5, 2, calendar);
+  toString() { return "iso8601"; }
-
+};
 [
-  [date1, "2000-05-02"],
+  [new Temporal.PlainDate(2000, 5, 2), "2000-05-02"],
-  [date2, "2000-05-02[u-ca=custom]"],
+  [new Temporal.PlainDate(2000, 5, 2, customCalendar), "2000-05-02[u-ca=custom]"],
+  [new Temporal.PlainDate(2000, 5, 2, customISOCalendar), "2000-05-02"],
 ].forEach(([date, expected]) => {
   const explicit = date.toString({ calendarName: undefined });
   assert.sameValue(explicit, expected, "default calendarName option is auto");