update tests

Author: mayank1513

lib/__tests__/dist.test.ts

@@ -23,4 +23,8 @@ describe.concurrent("Test plugin with default options in example build with tsup
     const text = fs.readFileSync(path.resolve(exampleBuildDir, "client", "index.js"), "utf-8");
     expect(/data-testid/.test(text)).toBe(false);
   });
+
+  test('should not contain .snap files', ({expect}) => {
+    expect(fs.existsSync(path.resolve(exampleBuildDir, "client", "header", '__snapshots__'))).toBe(false);
+  })
 });