diff --git a/test/prefer-trim-start-end.js b/test/prefer-trim-start-end.js
index 8099f2790f..10023ef9aa 100644
--- a/test/prefer-trim-start-end.js
+++ b/test/prefer-trim-start-end.js
@@ -4,98 +4,48 @@ import {outdent} from 'outdent';
 import visualizeRuleTester from './utils/visualize-rule-tester';
 import rule from '../rules/prefer-trim-start-end';
 
-const ruleTester = avaRuleTester(test, {
-	env: {
-		es6: true
-	}
-});
-
-const errorTrimLeft = {
-	messageId: 'trimLeft'
-};
-
-const errorTrimRight = {
-	messageId: 'trimRight'
-};
-
-ruleTester.run('prefer-trim-start-end', rule, {
-	valid: [
-		'foo.trimStart()',
-		'foo.trimEnd()',
-		// Not `CallExpression`
-		'new foo.trimLeft();',
-		// Not `MemberExpression`
-		'trimLeft();',
-		// `callee.property` is not a `Identifier`
-		'foo[\'trimLeft\']();',
-		// Computed
-		'foo[trimLeft]();',
-		// Not `trimLeft`/`trimRight`
-		'foo.bar();',
-		// More argument(s)
-		'foo.trimLeft(extra);',
-		'foo.trimLeft(...argumentsArray)',
-		// `trimLeft` is in argument
-		'foo.bar(trimLeft)',
-		'foo.bar(foo.trimLeft)',
-		// `trimLeft` is in `MemberExpression.object`
-		'trimLeft.foo()',
-		'foo.trimLeft.bar()'
-	],
-	invalid: [
-		{
-			code: 'foo.trimLeft()',
-			output: 'foo.trimStart()',
-			errors: [errorTrimLeft]
-		},
-		{
-			code: 'foo.trimRight()',
-			output: 'foo.trimEnd()',
-			errors: [errorTrimRight]
-		},
-		{
-			code: 'trimLeft.trimRight()',
-			output: 'trimLeft.trimEnd()',
-			errors: [errorTrimRight]
-		},
-		{
-			code: 'foo.trimLeft.trimRight()',
-			output: 'foo.trimLeft.trimEnd()',
-			errors: [errorTrimRight]
-		},
-		{
-			code: '"foo".trimLeft()',
-			output: '"foo".trimStart()',
-			errors: [errorTrimLeft]
-		},
-		{
-			code: outdent`
-				foo
-					// comment
-					.trimRight/* comment */(
-						/* comment */
-					)
-			`,
-			output: outdent`
-				foo
-					// comment
-					.trimEnd/* comment */(
-						/* comment */
-					)
-			`,
-			errors: [errorTrimRight]
-		}
-	]
-});
-
-const visualizeTester = visualizeRuleTester(test);
-visualizeTester.run('prefer-trim-start-end', rule, [
+const valid = [
+	'foo.trimStart()',
+	'foo.trimEnd()',
+	// Not `CallExpression`
+	'new foo.trimLeft();',
+	// Not `MemberExpression`
+	'trimLeft();',
+	// `callee.property` is not a `Identifier`
+	'foo[\'trimLeft\']();',
+	// Computed
+	'foo[trimLeft]();',
+	// Not `trimLeft`/`trimRight`
+	'foo.bar();',
+	// More argument(s)
+	'foo.trimLeft(extra);',
+	'foo.trimLeft(...argumentsArray)',
+	// `trimLeft` is in argument
+	'foo.bar(trimLeft)',
+	'foo.bar(foo.trimLeft)',
+	// `trimLeft` is in `MemberExpression.object`
+	'trimLeft.foo()',
+	'foo.trimLeft.bar()'
+];
+const invalid = [
 	'foo.trimLeft()',
+	'foo.trimRight()',
+	'trimLeft.trimRight()',
+	'foo.trimLeft.trimRight()',
+	'"foo".trimLeft()',
 	outdent`
 		foo
 			// comment
 			.trimRight/* comment */(
 				/* comment */
 			)
-	`
-]);
+	`,
+];
+
+const testOptions = {
+	parserOptions: {
+		ecmaVersion: 2021,
+	}
+};
+avaRuleTester(test, testOptions).run('prefer-trim-start-end', rule, {valid, invalid: []});
+visualizeRuleTester(test, testOptions).run('prefer-trim-start-end', rule, invalid);
diff --git a/test/snapshots/prefer-trim-start-end.js.md b/test/snapshots/prefer-trim-start-end.js.md
index e2feba25e8..58330c1ac5 100644
--- a/test/snapshots/prefer-trim-start-end.js.md
+++ b/test/snapshots/prefer-trim-start-end.js.md
@@ -22,6 +22,70 @@ Generated by [AVA](https://avajs.dev).
 
 ## prefer-trim-start-end - #2
 
+> Snapshot 1
+
+    `␊
+    Input:␊
+      1 | foo.trimRight()␊
+    ␊
+    Output:␊
+      1 | foo.trimEnd()␊
+    ␊
+    Error 1/1:␊
+    > 1 | foo.trimRight()␊
+        |     ^^^^^^^^^ Prefer `String#trimEnd()` over `String#trimRight()`.␊
+    `
+
+## prefer-trim-start-end - #3
+
+> Snapshot 1
+
+    `␊
+    Input:␊
+      1 | trimLeft.trimRight()␊
+    ␊
+    Output:␊
+      1 | trimLeft.trimEnd()␊
+    ␊
+    Error 1/1:␊
+    > 1 | trimLeft.trimRight()␊
+        |          ^^^^^^^^^ Prefer `String#trimEnd()` over `String#trimRight()`.␊
+    `
+
+## prefer-trim-start-end - #4
+
+> Snapshot 1
+
+    `␊
+    Input:␊
+      1 | foo.trimLeft.trimRight()␊
+    ␊
+    Output:␊
+      1 | foo.trimLeft.trimEnd()␊
+    ␊
+    Error 1/1:␊
+    > 1 | foo.trimLeft.trimRight()␊
+        |              ^^^^^^^^^ Prefer `String#trimEnd()` over `String#trimRight()`.␊
+    `
+
+## prefer-trim-start-end - #5
+
+> Snapshot 1
+
+    `␊
+    Input:␊
+      1 | "foo".trimLeft()␊
+    ␊
+    Output:␊
+      1 | "foo".trimStart()␊
+    ␊
+    Error 1/1:␊
+    > 1 | "foo".trimLeft()␊
+        |       ^^^^^^^^ Prefer `String#trimStart()` over `String#trimLeft()`.␊
+    `
+
+## prefer-trim-start-end - #6
+
 > Snapshot 1
 
     `␊
diff --git a/test/snapshots/prefer-trim-start-end.js.snap b/test/snapshots/prefer-trim-start-end.js.snap
index 4304e6d7f0..dc6d797d86 100644
Binary files a/test/snapshots/prefer-trim-start-end.js.snap and b/test/snapshots/prefer-trim-start-end.js.snap differ