fix: randomize NonEmptyArray elements independently

src/experimental.ts

@@ -1,6 +1,7 @@
 import { Fuzzer } from './fuzzer';
 import * as t from 'io-ts';
 import { NonEmptyArray, cons } from 'fp-ts/lib/NonEmptyArray';
+import { rng } from './rng';
 
 /**
  * @experimental 4.1.0 This will be superseded by a generic handler for NonEmptyArrays in io-ts-types when https://github.com/gcanti/io-ts-types/issues/102 is fixed.
@@ -14,7 +15,11 @@ export const nonEmptyArrayFuzzer = <T>(
     type: 'fuzzer',
     children: [c, t.array(c)],
     func: (ctx, n0, hc, ha) => {
-      return cons(hc.encode([n0, ctx]) as T, ha.encode([n0, ctx]) as T[]);
+      const r = rng(n0);
+      return cons(
+        hc.encode([r.int32(), ctx]) as T,
+        ha.encode([r.int32(), ctx]) as T[]
+      );
     },
   },
 });