diff --git a/test/intl402/DateTimeFormat/length.js b/test/intl402/DateTimeFormat/length.js
index 7eb21739af..34cc844e7e 100644
--- a/test/intl402/DateTimeFormat/length.js
+++ b/test/intl402/DateTimeFormat/length.js
@@ -24,8 +24,9 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Intl.DateTimeFormat.length, 0);
-
-verifyNotEnumerable(Intl.DateTimeFormat, "length");
-verifyNotWritable(Intl.DateTimeFormat, "length");
-verifyConfigurable(Intl.DateTimeFormat, "length");
+verifyProperty(Intl.DateTimeFormat, "length", {
+  value: 0,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/name.js b/test/intl402/DateTimeFormat/name.js
index b77f1f6096..322e0a5a2b 100644
--- a/test/intl402/DateTimeFormat/name.js
+++ b/test/intl402/DateTimeFormat/name.js
@@ -19,8 +19,9 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Intl.DateTimeFormat.name, "DateTimeFormat");
-
-verifyNotEnumerable(Intl.DateTimeFormat, "name");
-verifyNotWritable(Intl.DateTimeFormat, "name");
-verifyConfigurable(Intl.DateTimeFormat, "name");
+verifyProperty(Intl.DateTimeFormat, "name", {
+  value: "DateTimeFormat",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/prop-desc.js b/test/intl402/DateTimeFormat/prop-desc.js
index a808d1ea11..e25487e6f6 100644
--- a/test/intl402/DateTimeFormat/prop-desc.js
+++ b/test/intl402/DateTimeFormat/prop-desc.js
@@ -24,6 +24,8 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-verifyNotEnumerable(Intl, "DateTimeFormat");
-verifyWritable(Intl, "DateTimeFormat");
-verifyConfigurable(Intl, "DateTimeFormat");
+verifyProperty(Intl, "DateTimeFormat", {
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/prototype/constructor/prop-desc.js b/test/intl402/DateTimeFormat/prototype/constructor/prop-desc.js
index a4ec0cccd9..62d841b47d 100644
--- a/test/intl402/DateTimeFormat/prototype/constructor/prop-desc.js
+++ b/test/intl402/DateTimeFormat/prototype/constructor/prop-desc.js
@@ -24,6 +24,8 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-verifyNotEnumerable(Intl.DateTimeFormat.prototype, "constructor");
-verifyWritable(Intl.DateTimeFormat.prototype, "constructor");
-verifyConfigurable(Intl.DateTimeFormat.prototype, "constructor");
+verifyProperty(Intl.DateTimeFormat.prototype, "constructor", {
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/prototype/format/format-function-length.js b/test/intl402/DateTimeFormat/prototype/format/format-function-length.js
index e7af4121c6..9f62f8cf0f 100644
--- a/test/intl402/DateTimeFormat/prototype/format/format-function-length.js
+++ b/test/intl402/DateTimeFormat/prototype/format/format-function-length.js
@@ -21,8 +21,9 @@ includes: [propertyHelper.js]
 
 var formatFn = new Intl.DateTimeFormat().format;
 
-assert.sameValue(formatFn.length, 1);
-
-verifyNotEnumerable(formatFn, "length");
-verifyNotWritable(formatFn, "length");
-verifyConfigurable(formatFn, "length");
+verifyProperty(formatFn, "length", {
+  value: 1,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/prototype/format/length.js b/test/intl402/DateTimeFormat/prototype/format/length.js
index 8c36d0d26a..f83b49f74f 100644
--- a/test/intl402/DateTimeFormat/prototype/format/length.js
+++ b/test/intl402/DateTimeFormat/prototype/format/length.js
@@ -26,8 +26,9 @@ includes: [propertyHelper.js]
 
 var desc = Object.getOwnPropertyDescriptor(Intl.DateTimeFormat.prototype, "format");
 
-assert.sameValue(desc.get.length, 0);
-
-verifyNotEnumerable(desc.get, "length");
-verifyNotWritable(desc.get, "length");
-verifyConfigurable(desc.get, "length");
+verifyProperty(desc.get, "length", {
+  value: 0,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/prototype/format/name.js b/test/intl402/DateTimeFormat/prototype/format/name.js
index 010ff606c8..5349cfe3d7 100644
--- a/test/intl402/DateTimeFormat/prototype/format/name.js
+++ b/test/intl402/DateTimeFormat/prototype/format/name.js
@@ -21,8 +21,9 @@ includes: [propertyHelper.js]
 
 var desc = Object.getOwnPropertyDescriptor(Intl.DateTimeFormat.prototype, "format");
 
-assert.sameValue(desc.get.name, "get format");
-
-verifyNotEnumerable(desc.get, "name");
-verifyNotWritable(desc.get, "name");
-verifyConfigurable(desc.get, "name");
+verifyProperty(desc.get, "name", {
+  value: "get format",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/prototype/format/prop-desc.js b/test/intl402/DateTimeFormat/prototype/format/prop-desc.js
index ff12c9f511..7d015b1446 100644
--- a/test/intl402/DateTimeFormat/prototype/format/prop-desc.js
+++ b/test/intl402/DateTimeFormat/prototype/format/prop-desc.js
@@ -31,5 +31,7 @@ var desc = Object.getOwnPropertyDescriptor(Intl.DateTimeFormat.prototype, "forma
 assert.sameValue(desc.set, undefined);
 assert.sameValue(typeof desc.get, "function");
 
-verifyNotEnumerable(Intl.DateTimeFormat.prototype, "format");
-verifyConfigurable(Intl.DateTimeFormat.prototype, "format");
+verifyProperty(Intl.DateTimeFormat.prototype, "format", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/prototype/formatToParts/formatToParts.js b/test/intl402/DateTimeFormat/prototype/formatToParts/formatToParts.js
index 129da16623..6412d63979 100644
--- a/test/intl402/DateTimeFormat/prototype/formatToParts/formatToParts.js
+++ b/test/intl402/DateTimeFormat/prototype/formatToParts/formatToParts.js
@@ -12,6 +12,8 @@ assert.sameValue(
   '`typeof Intl.DateTimeFormat.prototype.formatToParts` is `function`'
 );
 
-verifyNotEnumerable(Intl.DateTimeFormat.prototype, 'formatToParts');
-verifyWritable(Intl.DateTimeFormat.prototype, 'formatToParts');
-verifyConfigurable(Intl.DateTimeFormat.prototype, 'formatToParts');
+verifyProperty(Intl.DateTimeFormat.prototype, "formatToParts", {
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/prototype/resolvedOptions/length.js b/test/intl402/DateTimeFormat/prototype/resolvedOptions/length.js
index 2ee86de93b..92bab69fb3 100644
--- a/test/intl402/DateTimeFormat/prototype/resolvedOptions/length.js
+++ b/test/intl402/DateTimeFormat/prototype/resolvedOptions/length.js
@@ -24,8 +24,9 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Intl.DateTimeFormat.prototype.resolvedOptions.length, 0);
-
-verifyNotEnumerable(Intl.DateTimeFormat.prototype.resolvedOptions, "length");
-verifyNotWritable(Intl.DateTimeFormat.prototype.resolvedOptions, "length");
-verifyConfigurable(Intl.DateTimeFormat.prototype.resolvedOptions, "length");
+verifyProperty(Intl.DateTimeFormat.prototype.resolvedOptions, "length", {
+  value: 0,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/prototype/resolvedOptions/name.js b/test/intl402/DateTimeFormat/prototype/resolvedOptions/name.js
index e41a878524..8925a1b1a1 100644
--- a/test/intl402/DateTimeFormat/prototype/resolvedOptions/name.js
+++ b/test/intl402/DateTimeFormat/prototype/resolvedOptions/name.js
@@ -19,8 +19,9 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Intl.DateTimeFormat.prototype.resolvedOptions.name, "resolvedOptions");
-
-verifyNotEnumerable(Intl.DateTimeFormat.prototype.resolvedOptions, "name");
-verifyNotWritable(Intl.DateTimeFormat.prototype.resolvedOptions, "name");
-verifyConfigurable(Intl.DateTimeFormat.prototype.resolvedOptions, "name");
+verifyProperty(Intl.DateTimeFormat.prototype.resolvedOptions, "name", {
+  value: "resolvedOptions",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/prototype/resolvedOptions/prop-desc.js b/test/intl402/DateTimeFormat/prototype/resolvedOptions/prop-desc.js
index 06e589405c..8c6dee47b3 100644
--- a/test/intl402/DateTimeFormat/prototype/resolvedOptions/prop-desc.js
+++ b/test/intl402/DateTimeFormat/prototype/resolvedOptions/prop-desc.js
@@ -24,6 +24,8 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-verifyNotEnumerable(Intl.DateTimeFormat.prototype, "resolvedOptions");
-verifyWritable(Intl.DateTimeFormat.prototype, "resolvedOptions");
-verifyConfigurable(Intl.DateTimeFormat.prototype, "resolvedOptions");
+verifyProperty(Intl.DateTimeFormat.prototype, "resolvedOptions", {
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/supportedLocalesOf/length.js b/test/intl402/DateTimeFormat/supportedLocalesOf/length.js
index 0f29d6a0a9..68972d628e 100644
--- a/test/intl402/DateTimeFormat/supportedLocalesOf/length.js
+++ b/test/intl402/DateTimeFormat/supportedLocalesOf/length.js
@@ -24,8 +24,9 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Intl.DateTimeFormat.supportedLocalesOf.length, 1);
-
-verifyNotEnumerable(Intl.DateTimeFormat.supportedLocalesOf, "length");
-verifyNotWritable(Intl.DateTimeFormat.supportedLocalesOf, "length");
-verifyConfigurable(Intl.DateTimeFormat.supportedLocalesOf, "length");
+verifyProperty(Intl.DateTimeFormat.supportedLocalesOf, "length", {
+  value: 1,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/supportedLocalesOf/name.js b/test/intl402/DateTimeFormat/supportedLocalesOf/name.js
index 8dc5aa2cce..c34344694f 100644
--- a/test/intl402/DateTimeFormat/supportedLocalesOf/name.js
+++ b/test/intl402/DateTimeFormat/supportedLocalesOf/name.js
@@ -19,8 +19,9 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Intl.DateTimeFormat.supportedLocalesOf.name, "supportedLocalesOf");
-
-verifyNotEnumerable(Intl.DateTimeFormat.supportedLocalesOf, "name");
-verifyNotWritable(Intl.DateTimeFormat.supportedLocalesOf, "name");
-verifyConfigurable(Intl.DateTimeFormat.supportedLocalesOf, "name");
+verifyProperty(Intl.DateTimeFormat.supportedLocalesOf, "name", {
+  value: "supportedLocalesOf",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/intl402/DateTimeFormat/supportedLocalesOf/prop-desc.js b/test/intl402/DateTimeFormat/supportedLocalesOf/prop-desc.js
index 623d09e490..7508903b23 100644
--- a/test/intl402/DateTimeFormat/supportedLocalesOf/prop-desc.js
+++ b/test/intl402/DateTimeFormat/supportedLocalesOf/prop-desc.js
@@ -24,6 +24,8 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-verifyNotEnumerable(Intl.DateTimeFormat, "supportedLocalesOf");
-verifyWritable(Intl.DateTimeFormat, "supportedLocalesOf");
-verifyConfigurable(Intl.DateTimeFormat, "supportedLocalesOf");
+verifyProperty(Intl.DateTimeFormat, "supportedLocalesOf", {
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});