chore: fix list-files (#22609)

packages/playwright-test/src/runner/runner.ts

@@ -34,13 +34,26 @@ export class Runner {
   }
 
   async listTestFiles(projectNames: string[] | undefined): Promise<any> {
+    type ProjectConfigWithFiles = {
+      name: string;
+      testDir: string;
+      use: { testIdAttribute?: string };
+      files: string[];
+    };
+
+    type ConfigListFilesReport = {
+      projects: ProjectConfigWithFiles[];
+    };
+
     const projects = filterProjects(this._config.projects, projectNames);
-    const report: any = {
+    const report: ConfigListFilesReport = {
       projects: []
     };
     for (const project of projects) {
       report.projects.push({
-        ...sanitizeConfigForJSON(project, new Set()),
+        name: project.project.name,
+        testDir: project.project.testDir,
+        use: { testIdAttribute: project.project.use.testIdAttribute },
         files: await collectFilesForProject(project)
       });
     }
@@ -99,32 +112,3 @@ export class Runner {
     return await runUIMode(config);
   }
 }
-
-function sanitizeConfigForJSON(object: any, visited: Set<any>): any {
-  const type = typeof object;
-  if (type === 'function' || type === 'symbol')
-    return undefined;
-  if (!object || type !== 'object')
-    return object;
-
-  if (object instanceof RegExp)
-    return String(object);
-  if (object instanceof Date)
-    return object.toISOString();
-
-  if (visited.has(object))
-    return undefined;
-  visited.add(object);
-
-  if (Array.isArray(object))
-    return object.map(a => sanitizeConfigForJSON(a, visited));
-
-  const result: any = {};
-  const keys = Object.keys(object).slice(0, 100);
-  for (const key of keys) {
-    if (key.startsWith('_'))
-      continue;
-    result[key] = sanitizeConfigForJSON(object[key], visited);
-  }
-  return result;
-}