test: add test case of PassThrough

This commit adds the test case of PassThrough. This test case checks that PassThrough can construct without new operator. This is a part of Code And Learn at NodeFest 2016 Fixes: nodejs/code-and-learn#58 PR-URL: #9581 Reviewed-By: Yosuke Furukawa <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Shigeki Ohtsu <[email protected]>
nodejs · Nov 22, 2016 · 875d1b9 · 875d1b9
1 parent cc6901d
commit 875d1b9
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/test/parallel/test-stream2-transform.js b/test/parallel/test-stream2-transform.js
@@ -106,6 +106,14 @@ test('object passthrough', function(t) {
   t.end();
 });
 
+test('passthrough constructor', function(t) {
+  const pt = PassThrough();
+
+  assert(pt instanceof PassThrough);
+
+  t.end();
+});
+
 test('simple transform', function(t) {
   var pt = new Transform();
   pt._transform = function(c, e, cb) {