diff --git a/lib/rules/require-meta-docs-url.js b/lib/rules/require-meta-docs-url.js
index c4adc237..30433bc4 100644
--- a/lib/rules/require-meta-docs-url.js
+++ b/lib/rules/require-meta-docs-url.js
@@ -50,7 +50,7 @@ module.exports = {
    */
   create(context) {
     const options = context.options[0] || {};
-    const filename = context.getFilename();
+    const filename = context.filename || context.getFilename();
     const ruleName =
       filename === '<input>'
         ? undefined
diff --git a/lib/utils.js b/lib/utils.js
index e33eda20..be617d31 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -467,7 +467,7 @@ module.exports = {
             isRuleTesterConstruction(declarator.init) &&
             declarator.id.type === 'Identifier'
           ) {
-            context.getDeclaredVariables(declarator).forEach((variable) => {
+            (sourceCode.getDeclaredVariables || context.getDeclaredVariables)(declarator).forEach((variable) => {
               variable.references
                 .filter((ref) => ref.isRead())
                 .forEach((ref) => variableIdentifiers.add(ref.identifier));