diff --git a/test/built-ins/Temporal/Calendar/prototype/toStringTag/prop-desc.js b/test/built-ins/Temporal/Calendar/prototype/toStringTag/prop-desc.js
new file mode 100644
index 0000000000..a1a6b83b46
--- /dev/null
+++ b/test/built-ins/Temporal/Calendar/prototype/toStringTag/prop-desc.js
@@ -0,0 +1,16 @@
+// 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.calendar.prototype-@@tostringtag
+description: The @@toStringTag property of Temporal.Calendar
+includes: [propertyHelper.js]
+features: [Temporal]
+---*/
+
+verifyProperty(Temporal.Calendar.prototype, Symbol.toStringTag, {
+  value: "Temporal.Calendar",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Temporal/Duration/prototype/toStringTag/prop-desc.js b/test/built-ins/Temporal/Duration/prototype/toStringTag/prop-desc.js
new file mode 100644
index 0000000000..39e847fc01
--- /dev/null
+++ b/test/built-ins/Temporal/Duration/prototype/toStringTag/prop-desc.js
@@ -0,0 +1,16 @@
+// 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.duration.prototype-@@tostringtag
+description: The @@toStringTag property of Temporal.Duration
+includes: [propertyHelper.js]
+features: [Temporal]
+---*/
+
+verifyProperty(Temporal.Duration.prototype, Symbol.toStringTag, {
+  value: "Temporal.Duration",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Temporal/Instant/prototype/toStringTag/prop-desc.js b/test/built-ins/Temporal/Instant/prototype/toStringTag/prop-desc.js
index 90e55d4b64..74a41b0f8b 100644
--- a/test/built-ins/Temporal/Instant/prototype/toStringTag/prop-desc.js
+++ b/test/built-ins/Temporal/Instant/prototype/toStringTag/prop-desc.js
@@ -8,8 +8,7 @@ includes: [propertyHelper.js]
 features: [Temporal]
 ---*/
 
-const { Instant } = Temporal;
-verifyProperty(Instant.prototype, Symbol.toStringTag, {
+verifyProperty(Temporal.Instant.prototype, Symbol.toStringTag, {
   value: "Temporal.Instant",
   writable: false,
   enumerable: false,
diff --git a/test/built-ins/Temporal/PlainDate/prototype/toStringTag/prop-desc.js b/test/built-ins/Temporal/PlainDate/prototype/toStringTag/prop-desc.js
new file mode 100644
index 0000000000..630833004e
--- /dev/null
+++ b/test/built-ins/Temporal/PlainDate/prototype/toStringTag/prop-desc.js
@@ -0,0 +1,16 @@
+// 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.prototype-@@tostringtag
+description: The @@toStringTag property of Temporal.PlainDate
+includes: [propertyHelper.js]
+features: [Temporal]
+---*/
+
+verifyProperty(Temporal.PlainDate.prototype, Symbol.toStringTag, {
+  value: "Temporal.PlainDate",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Temporal/PlainDateTime/prototype/toStringTag/prop-desc.js b/test/built-ins/Temporal/PlainDateTime/prototype/toStringTag/prop-desc.js
new file mode 100644
index 0000000000..a2488d5d42
--- /dev/null
+++ b/test/built-ins/Temporal/PlainDateTime/prototype/toStringTag/prop-desc.js
@@ -0,0 +1,16 @@
+// 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-@@tostringtag
+description: The @@toStringTag property of Temporal.PlainDateTime
+includes: [propertyHelper.js]
+features: [Temporal]
+---*/
+
+verifyProperty(Temporal.PlainDateTime.prototype, Symbol.toStringTag, {
+  value: "Temporal.PlainDateTime",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Temporal/PlainMonthDay/prototype/toStringTag/prop-desc.js b/test/built-ins/Temporal/PlainMonthDay/prototype/toStringTag/prop-desc.js
new file mode 100644
index 0000000000..bcff288573
--- /dev/null
+++ b/test/built-ins/Temporal/PlainMonthDay/prototype/toStringTag/prop-desc.js
@@ -0,0 +1,16 @@
+// 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.plainmonthday.prototype-@@tostringtag
+description: The @@toStringTag property of Temporal.PlainMonthDay
+includes: [propertyHelper.js]
+features: [Temporal]
+---*/
+
+verifyProperty(Temporal.PlainMonthDay.prototype, Symbol.toStringTag, {
+  value: "Temporal.PlainMonthDay",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Temporal/PlainTime/prototype/toStringTag/prop-desc.js b/test/built-ins/Temporal/PlainTime/prototype/toStringTag/prop-desc.js
new file mode 100644
index 0000000000..812873914e
--- /dev/null
+++ b/test/built-ins/Temporal/PlainTime/prototype/toStringTag/prop-desc.js
@@ -0,0 +1,16 @@
+// 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.plaintime.prototype-@@tostringtag
+description: The @@toStringTag property of Temporal.PlainTime
+includes: [propertyHelper.js]
+features: [Temporal]
+---*/
+
+verifyProperty(Temporal.PlainTime.prototype, Symbol.toStringTag, {
+  value: "Temporal.PlainTime",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Temporal/PlainYearMonth/prototype/toStringTag/prop-desc.js b/test/built-ins/Temporal/PlainYearMonth/prototype/toStringTag/prop-desc.js
new file mode 100644
index 0000000000..1dfe73a8d9
--- /dev/null
+++ b/test/built-ins/Temporal/PlainYearMonth/prototype/toStringTag/prop-desc.js
@@ -0,0 +1,16 @@
+// 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-@@tostringtag
+description: The @@toStringTag property of Temporal.PlainYearMonth
+includes: [propertyHelper.js]
+features: [Temporal]
+---*/
+
+verifyProperty(Temporal.PlainYearMonth.prototype, Symbol.toStringTag, {
+  value: "Temporal.PlainYearMonth",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Temporal/TimeZone/prototype/toStringTag/prop-desc.js b/test/built-ins/Temporal/TimeZone/prototype/toStringTag/prop-desc.js
new file mode 100644
index 0000000000..2aeae3722c
--- /dev/null
+++ b/test/built-ins/Temporal/TimeZone/prototype/toStringTag/prop-desc.js
@@ -0,0 +1,16 @@
+// 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.timezone.prototype-@@tostringtag
+description: The @@toStringTag property of Temporal.TimeZone
+includes: [propertyHelper.js]
+features: [Temporal]
+---*/
+
+verifyProperty(Temporal.TimeZone.prototype, Symbol.toStringTag, {
+  value: "Temporal.TimeZone",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Temporal/ZonedDateTime/prototype/toStringTag/prop-desc.js b/test/built-ins/Temporal/ZonedDateTime/prototype/toStringTag/prop-desc.js
new file mode 100644
index 0000000000..72fadda4ef
--- /dev/null
+++ b/test/built-ins/Temporal/ZonedDateTime/prototype/toStringTag/prop-desc.js
@@ -0,0 +1,16 @@
+// 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.zoneddatetime.prototype-@@tostringtag
+description: The @@toStringTag property of Temporal.ZonedDateTime
+includes: [propertyHelper.js]
+features: [Temporal]
+---*/
+
+verifyProperty(Temporal.ZonedDateTime.prototype, Symbol.toStringTag, {
+  value: "Temporal.ZonedDateTime",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});