stream: don't emit 'finish' after 'error'

ronag · ronag · commit 9b20b5db7b82 · 2020-03-17T14:49:49.000+01:00
PR-URL: #32275 Refs: #28710 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
diff --git a/lib/_stream_writable.js b/lib/_stream_writable.js
@@ -666,6 +666,9 @@ function finishMaybe(stream, state, sync) {
 
 function finish(stream, state) {
   state.pendingcb--;
+  if (state.errorEmitted)
+    return;
+
   state.finished = true;
   stream.emit('finish');
 
diff --git a/test/parallel/test-stream-writable-write-writev-finish.js b/test/parallel/test-stream-writable-write-writev-finish.js
@@ -132,6 +132,7 @@ const stream = require('stream');
     process.nextTick(cb);
   };
   w.on('error', common.mustCall());
+  w.on('finish', common.mustNotCall());
   w.on('prefinish', () => {
     w.write("shouldn't write in prefinish listener");
   });
