stream: fix tests

nodejs · fe25995d6a704416a4276bfcd30e855328b75768
commit fe25995d6a704416a4276bfcd30e855328b75768
diff --git a/lib/internal/webstreams/readablestream.js b/lib/internal/webstreams/readablestream.js
@@ -1021,7 +1021,7 @@ class ReadableStreamDefaultController {
   [kType] = 'ReadableStreamDefaultController';
   [kState] = {};
 
-  constructor(skipThrowSymbol) {
+  constructor(skipThrowSymbol = undefined) {
     if (skipThrowSymbol !== kSkipThrow) {
       throw new ERR_ILLEGAL_CONSTRUCTOR();
     }

diff --git a/lib/internal/webstreams/transformstream.js b/lib/internal/webstreams/transformstream.js
@@ -271,7 +271,7 @@ TransferredTransformStream.prototype[kDeserialize] = () => {};
 class TransformStreamDefaultController {
   [kType] = 'TransformStreamDefaultController';
 
-  constructor(skipThrowSymbol) {
+  constructor(skipThrowSymbol = undefined) {
     if (skipThrowSymbol !== kSkipThrow) {
       throw new ERR_ILLEGAL_CONSTRUCTOR();
     }

diff --git a/lib/internal/webstreams/writablestream.js b/lib/internal/webstreams/writablestream.js
@@ -523,7 +523,7 @@ ObjectDefineProperties(WritableStreamDefaultWriter.prototype, {
 class WritableStreamDefaultController {
   [kType] = 'WritableStreamDefaultController';
 
-  constructor(skipThrowSymbol) {
+  constructor(skipThrowSymbol = undefined) {
     if (skipThrowSymbol !== kSkipThrow) {
       throw new ERR_ILLEGAL_CONSTRUCTOR();
     }