diff --git a/tests/lib/rules/utils/ast-utils.js b/tests/lib/rules/utils/ast-utils.js
index d5c57eacc5f..bc03c7e47cd 100644
--- a/tests/lib/rules/utils/ast-utils.js
+++ b/tests/lib/rules/utils/ast-utils.js
@@ -1878,10 +1878,6 @@ describe("ast-utils", () => {
 
     describe("isDirective", () => {
         const expectedResults = [
-            { code: '"use strict";', expectedRetVal: true },
-            { code: '"use strict"; "use asm";', nodeText: '"use asm";', expectedRetVal: true },
-            { code: 'const a = () => { "foo"; }', nodeText: '"foo";', expectedRetVal: true },
-            { code: '"";', expectedRetVal: true },
             { code: '"use strict";', expectedRetVal: true },
             { code: '"use strict"; "use asm";', nodeText: '"use asm";', expectedRetVal: true },
             { code: 'const a = () => { "foo"; }', nodeText: '"foo";', expectedRetVal: true },