Add tests for invalid calendar ids, include unknown calendar id.

test/built-ins/Temporal/Duration/compare/relativeto-argument-propertybag-calendar-invalid-iso-string.js

@@ -0,0 +1,26 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.duration.compare
+description: Invalid ISO string as calendar in relativeTo option should throw RangeError
+features: [Temporal]
+---*/
+
+const instance_1 = new Temporal.Duration(1);
+const instance_2 = new Temporal.Duration(2);
+
+const invalidStrings = [
+  ["", "empty string"],
+  ["calendar: '1997-12-04[u-ca=iso8601]'", "ISO string with calendar annotation"],
+  ["calendar: 'notacal'", "Unknown calendar"],
+];
+
+for (const [calendar, description] of invalidStrings) {
+  const arg = { year: 2019, monthCode: "M11", day: 1, calendar };
+  assert.throws(
+    RangeError,
+    () => Temporal.Duration.compare(instance_1, instance_2, { relativeTo: arg }),
+    `${description} is not a valid calendar ID`
+  );
+}

test/built-ins/Temporal/Duration/compare/relativeto-argument-string-calendar-invalid-iso-string.js

@@ -0,0 +1,25 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.duration.compare
+description: Invalid ISO string as calendar in relativeTo option should throw RangeError
+features: [Temporal]
+---*/
+
+const instance_1 = new Temporal.Duration(1);
+const instance_2 = new Temporal.Duration(2);
+
+const invalidStrings = [
+  ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+];
+
+for (const [arg, description] of invalidStrings) {
+  assert.throws(
+    RangeError,
+    () => Temporal.Duration.compare(instance_1, instance_2, { relativeTo: arg }),
+    `${description} is not a valid calendar ID`
+  );
+}
+

test/built-ins/Temporal/Duration/prototype/round/relativeto-argument-propertybag-calendar-invalid-iso-string.js

@@ -0,0 +1,25 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.duration.prototype.round
+description: Invalid ISO string as calendar in relativeTo option should throw RangeError
+features: [Temporal]
+---*/
+
+const instance = new Temporal.Duration(1, 0, 0, 0, 24);
+
+const invalidStrings = [
+  ["", "empty string"],
+  ["calendar: '1997-12-04[u-ca=iso8601]'", "ISO string with calendar annotation"],
+  ["calendar: 'notacal'", "Unknown calendar"],
+];
+
+for (const [calendar, description] of invalidStrings) {
+  const arg = { year: 2019, monthCode: "M11", day: 1, calendar };
+  assert.throws(
+    RangeError,
+    () => instance.round({ largestUnit: "months", relativeTo: arg }),
+    `${description} is not a valid calendar ID`
+  );
+}

test/built-ins/Temporal/Duration/prototype/round/relativeto-argument-string-calendar-invalid-iso-string.js

@@ -0,0 +1,24 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.duration.prototype.round
+description: Invalid ISO string as calendar in relativeTo option should throw RangeError
+features: [Temporal]
+---*/
+
+const instance = new Temporal.Duration(1, 0, 0, 0, 24);
+
+const invalidStrings = [
+  ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+];
+
+for (const [arg, description] of invalidStrings) {
+  assert.throws(
+    RangeError,
+    () => instance.round({ largestUnit: "months", relativeTo: arg }),
+    `${description} is not a valid calendar ID`
+  );
+}
+

test/built-ins/Temporal/Duration/prototype/total/relativeto-argument-propertybag-calendar-invalid-iso-string.js

@@ -0,0 +1,25 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.duration.prototype.total
+description: Invalid ISO string as calendar in relativeTo option should throw RangeError
+features: [Temporal]
+---*/
+
+const instance = new Temporal.Duration(1, 0, 0, 0, 24);
+
+const invalidStrings = [
+  ["", "empty string"],
+  ["calendar: '1997-12-04[u-ca=iso8601]'", "ISO string with calendar annotation"],
+  ["calendar: 'notacal'", "Unknown calendar"],
+];
+
+for (const [calendar, description] of invalidStrings) {
+  const arg = { year: 2019, monthCode: "M11", day: 1, calendar };
+  assert.throws(
+    RangeError,
+    () => instance.total({ unit: "months", relativeTo: arg }),
+    `${description} is not a valid calendar ID`
+  );
+}

test/built-ins/Temporal/Duration/prototype/total/relativeto-argument-string-calendar-invalid-iso-string.js

@@ -0,0 +1,24 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.duration.prototype.total
+description: Invalid ISO string as calendar in relativeTo option should throw RangeError
+features: [Temporal]
+---*/
+
+const instance = new Temporal.Duration(1, 0, 0, 0, 24);
+
+const invalidStrings = [
+  ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+];
+
+for (const [arg, description] of invalidStrings) {
+  assert.throws(
+    RangeError,
+    () => instance.total({ unit: "months", relativeTo: arg }),
+    `${description} is not a valid calendar ID`
+  );
+}
+

test/built-ins/Temporal/PlainDate/calendar-invalid-iso-string.js

@@ -3,13 +3,14 @@
 
 /*---
 esid: sec-temporal.plaindate.constructor
-description: Various invalid ISO string values for calendar
+description: Invalid ISO string as calendar should throw RangeError
 features: [Temporal]
 ---*/
 
 const invalidStrings = [
   ["", "empty string"],
   ["1997-12-04[u-ca=iso8601]", "ISO string with calendar annotation"],
+  ["notacal", "Unknown calendar"],
 ];
 
 for (const [arg, description] of invalidStrings) {

test/built-ins/Temporal/PlainDate/compare/argument-propertybag-calendar-invalid-iso-string.js

@@ -9,8 +9,10 @@ features: [Temporal]
 
 const invalidStrings = [
   ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+  ["calendar: 'notacal'", "Unknown calendar"],
 ];
-  
+
 for (const [calendar, description] of invalidStrings) {
   const arg = { year: 1976, monthCode: "M11", day: 18, calendar };
   assert.throws(

test/built-ins/Temporal/PlainDate/compare/argument-string-calendar-invalid-iso-string.js

@@ -0,0 +1,26 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plaindate.compare
+description: Invalid calendar string should throw RangeError
+features: [Temporal]
+---*/
+
+const invalidStrings = [
+  ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+];
+
+for (const [arg, description] of invalidStrings) {
+  assert.throws(
+    RangeError,
+    () => Temporal.PlainDate.compare(arg, new Temporal.PlainDate(1976, 11, 18)),
+    `${description} is not a valid calendar ID (first argument)`
+  );
+  assert.throws(
+    RangeError,
+    () => Temporal.PlainDate.compare(new Temporal.PlainDate(1976, 11, 18), arg),
+    `${description} is not a valid calendar ID (second argument)`
+  );
+}

test/built-ins/Temporal/PlainDate/from/argument-propertybag-calendar-invalid-iso-string.js

@@ -3,16 +3,18 @@
 
 /*---
 esid: sec-temporal.plaindate.from
-description: Various invalid ISO string values for calendar in a property bag
+description: Invalid ISO string as calendar should throw RangeError
 features: [Temporal]
 ---*/
 
 const invalidStrings = [
   ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+  ["calendar: 'notacal'", "Unknown calendar"],
 ];
-  
+
 for (const [calendar, description] of invalidStrings) {
-  const arg = { year: 2019, monthCode: "M11", day: 1, calendar };
+  const arg = { year: 1976, monthCode: "M11", day: 18, calendar };
   assert.throws(
     RangeError,
     () => Temporal.PlainDate.from(arg),

test/built-ins/Temporal/PlainDate/from/argument-string-calendar-invalid-iso-string.js

@@ -0,0 +1,21 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plaindate.from
+description: Invalid calendar string should throw RangeError
+features: [Temporal]
+---*/
+
+const invalidStrings = [
+  ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+];
+
+for (const [arg, description] of invalidStrings) {
+  assert.throws(
+    RangeError,
+    () => Temporal.PlainDate.from(arg),
+    `${description} is not a valid calendar ID`
+  );
+}

test/built-ins/Temporal/PlainDate/prototype/add/relativeto-argument-propertybag-calendar-invalid-iso-string.js

@@ -0,0 +1,25 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plaindate.prototype.add
+description: Invalid ISO string as calendar in relativeTo option should throw RangeError
+features: [Temporal]
+---*/
+
+const instance = new Temporal.PlainDate(2000, 5, 2);
+
+const invalidStrings = [
+  ["", "empty string"],
+  ["calendar: '1997-12-04[u-ca=iso8601]'", "ISO string with calendar annotation"],
+  ["calendar: 'notacal'", "Unknown calendar"],
+];
+
+for (const [calendar, description] of invalidStrings) {
+  const arg = { year: 2019, monthCode: "M11", day: 1, calendar };
+  assert.throws(
+    RangeError,
+    () => instance.add(new Temporal.Duration({ months: 1, days: 2}), { relativeTo: arg }),
+    `${description} is not a valid calendar ID`
+  );
+}

test/built-ins/Temporal/PlainDate/prototype/add/relativeto-argument-string-calendar-invalid-iso-string.js

@@ -0,0 +1,24 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plaindate.prototype.add
+description: Invalid ISO string as calendar in relativeTo option should throw RangeError
+features: [Temporal]
+---*/
+
+const instance = new Temporal.PlainDate(2000, 5, 2);
+
+const invalidStrings = [
+  ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+];
+
+for (const [arg, description] of invalidStrings) {
+  assert.throws(
+    RangeError,
+    () => instance.add(new Temporal.Duration({ months: 1, days: 2}), { relativeTo: arg }),
+    `${description} is not a valid calendar ID`
+  );
+}
+

test/built-ins/Temporal/PlainDate/prototype/equals/argument-propertybag-calendar-invalid-iso-string.js

@@ -11,10 +11,12 @@ const instance = new Temporal.PlainDate(2000, 5, 2);
 
 const invalidStrings = [
   ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+  ["calendar: 'notacal'", "Unknown calendar"],
 ];
 
 for (const [calendar, description] of invalidStrings) {
-  const arg = { year: 1976, monthCode: "M11", day: 18, calendar };
+  const arg = { year: 1970, monthCode: "M11", day: 18, calendar };
   assert.throws(
     RangeError,
     () => instance.equals(arg),

test/built-ins/Temporal/PlainDate/prototype/equals/argument-string-calendar-invalid-iso-string.js

@@ -0,0 +1,23 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plaindate.prototype.equals
+description: Invalid ISO string as calendar should throw RangeError
+features: [Temporal]
+---*/
+
+const instance = new Temporal.PlainDate(2000, 5, 2);
+
+const invalidStrings = [
+  ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+];
+
+for (const [arg, description] of invalidStrings) {
+  assert.throws(
+    RangeError,
+    () => instance.equals(arg),
+    `${description} is not a valid calendar ID`
+  );
+}

test/built-ins/Temporal/PlainDate/prototype/since/argument-propertybag-calendar-invalid-iso-string.js

@@ -11,10 +11,12 @@ const instance = new Temporal.PlainDate(2000, 5, 2);
 
 const invalidStrings = [
   ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+  ["calendar: 'notacal'", "Unknown calendar"],
 ];
 
 for (const [calendar, description] of invalidStrings) {
-  const arg = { year: 1976, monthCode: "M11", day: 18, calendar };
+  const arg = { year: 1970, monthCode: "M11", day: 18, calendar };
   assert.throws(
     RangeError,
     () => instance.since(arg),

test/built-ins/Temporal/PlainDate/prototype/since/argument-string-calendar-invalid-iso-string.js

@@ -0,0 +1,23 @@
+// Copyright (C) 2025 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plaindate.prototype.since
+description: Invalid ISO string as calendar should throw RangeError
+features: [Temporal]
+---*/
+
+const instance = new Temporal.PlainDate(2000, 5, 2);
+
+const invalidStrings = [
+  ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+];
+
+for (const [arg, description] of invalidStrings) {
+  assert.throws(
+    RangeError,
+    () => instance.since(arg),
+    `${description} is not a valid calendar ID`
+  );
+}

test/built-ins/Temporal/PlainDate/prototype/until/argument-propertybag-calendar-invalid-iso-string.js

@@ -11,10 +11,12 @@ const instance = new Temporal.PlainDate(2000, 5, 2);
 
 const invalidStrings = [
   ["", "empty string"],
+  ["1997-12-04[u-ca=notacal]", "Unknown calendar"],
+  ["calendar: 'notacal'", "Unknown calendar"],
 ];
 
 for (const [calendar, description] of invalidStrings) {
-  const arg = { year: 1976, monthCode: "M11", day: 18, calendar };
+  const arg = { year: 1970, monthCode: "M11", day: 18, calendar };
   assert.throws(
     RangeError,
     () => instance.until(arg),