add --permit-no-files testing

Author: AlvaroParker

cli/args/flags.rs

@@ -10882,6 +10882,32 @@ mod tests {
     );
   }
 
+  #[test]
+  fn bench_no_files() {
+    let r = flags_from_vec(svec!["deno", "bench", "--permit-no-files"]);
+    assert_eq!(
+      r.unwrap(),
+      Flags {
+        subcommand: DenoSubcommand::Bench(BenchFlags {
+          filter: None,
+          json: false,
+          no_run: false,
+          files: FileFlags {
+            include: vec![],
+            ignore: vec![],
+          },
+          watch: None,
+          permit_no_files: true
+        }),
+        permissions: PermissionFlags {
+          no_prompt: true,
+          ..Default::default()
+        },
+        type_check_mode: TypeCheckMode::Local,
+        ..Flags::default()
+      }
+    );
+  }
   #[test]
   fn run_with_check() {
     let r = flags_from_vec(svec!["deno", "run", "--check", "script.ts",]);