fix test_files

2 files changed, 2 insertions, 2 deletions

diff --git a/src/library.js b/src/library.js
index 6ef065e0..665d3faf 100644
--- a/src/library.js
+++ b/src/library.js
@@ -650,7 +650,7 @@ LibraryManager.library = {
         },
         close: function(stream) {
           // flush any pending line data
-          if (output.buffer && output.buffer.length) {
+          if (output && output.buffer && output.buffer.length) {
             output({{{ charCode('\n') }}});
           }
         },
diff --git a/tests/runner.py b/tests/runner.py
index b9807209..bcea89ea 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -7089,7 +7089,7 @@ def process(filename):
       other.close()
 
       src = open(path_from_root('tests', 'files.cpp'), 'r').read()
-      self.do_run(src, 'size: 7\ndata: 100,-56,50,25,10,77,123\nloop: 100 -56 50 25 10 77 123 \ninput:hi there!\ntexto\n$\n5 : 10,30,20,11,88\nother=some data.\nseeked=me da.\nseeked=ata.\nseeked=ta.\nfscanfed: 10 - hello\nok.\ntexte\n',
+      self.do_run(src, ('size: 7\ndata: 100,-56,50,25,10,77,123\nloop: 100 -56 50 25 10 77 123 \ninput:hi there!\ntexto\n$\n5 : 10,30,20,11,88\nother=some data.\nseeked=me da.\nseeked=ata.\nseeked=ta.\nfscanfed: 10 - hello\nok.\ntexte\n', 'size: 7\ndata: 100,-56,50,25,10,77,123\nloop: 100 -56 50 25 10 77 123 \ninput:hi there!\ntexto\ntexte\n$\n5 : 10,30,20,11,88\nother=some data.\nseeked=me da.\nseeked=ata.\nseeked=ta.\nfscanfed: 10 - hello\nok.\n'),
                    post_build=post, extra_emscripten_args=['-H', 'libc/fcntl.h'])
 
     def test_files_m(self):