fixup! lib: refactor internal webidl converters

Author: panva

lib/internal/crypto/webidl.js

@@ -594,7 +594,7 @@ converters.Argon2Params = createDictionaryConverter(
         validator: (V, dict) => {
           if (V === 0 || V > MathPow(2, 24) - 1) {
             throw lazyDOMException(
-              'parallelism must be > 0 and < 16777215',
+              'parallelism must be > 0 and <= 16777215',
               'OperationError');
           }
         },

test/parallel/test-webcrypto-webidl.js

@@ -585,3 +585,25 @@ function assertJsonWebKey(actual, expected) {
     assertIdlDictionary(converters.ContextParams({ ...good, filtered: 'out' }, opts), good);
   }
 }
+
+// Argon2Params
+{
+  const maxParallelism = 2 ** 24 - 1;
+  const good = {
+    name: 'Argon2id',
+    nonce: Buffer.alloc(8),
+    parallelism: maxParallelism,
+    memory: 8 * maxParallelism,
+    passes: 1,
+  };
+  assertIdlDictionary(converters.Argon2Params({ ...good, filtered: 'out' }, opts), good);
+
+  assert.throws(() => converters.Argon2Params({
+    ...good,
+    parallelism: maxParallelism + 1,
+    memory: 8 * (maxParallelism + 1),
+  }, opts), {
+    name: 'OperationError',
+    message: 'parallelism must be > 0 and <= 16777215',
+  });
+}