test: updated test-stream-pipe-unpipe-stream

test readableStream.unpipe(dest) is no operation when dest is not a destination for readable stream. PR-URL: nodejs#10100 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
jmdarling · Dec 8, 2016 · 89dcd9b · 89dcd9b
1 parent 1acebfe
commit 89dcd9b
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/test/parallel/test-stream-pipe-unpipe-streams.js b/test/parallel/test-stream-pipe-unpipe-streams.js
@@ -25,6 +25,9 @@ source.unpipe(dest2);
 assert.strictEqual(source._readableState.pipes, dest1);
 assert.notStrictEqual(source._readableState.pipes, dest2);
 
+dest2.on('unpipe', common.fail);
+source.unpipe(dest2);
+
 source.unpipe(dest1);
 
 assert.strictEqual(source._readableState.pipes, null);