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      1 # Copyright (c) 2014 The Chromium Authors. All rights reserved.
      2 # Use of this source code is governed by a BSD-style license that can be
      3 # found in the LICENSE file.
      4 
      5 import codecs
      6 import os
      7 import unittest
      8 import tempfile
      9 
     10 from tracing_build import vulcanize_trace_viewer
     11 
     12 
     13 class Trace2HTMLTests(unittest.TestCase):
     14 
     15   def testWriteHTMLForTracesToFile(self):
     16     try:
     17       # Note: We can't use "with" when working with tempfile.NamedTemporaryFile
     18       # as that does not work on Windows. We use the longer, more clunky version
     19       # instead. See https://bugs.python.org/issue14243 for detials.
     20       raw_tmpfile = tempfile.NamedTemporaryFile(
     21           mode='w', suffix='.html', delete=False)
     22       raw_tmpfile.close()
     23       with codecs.open(raw_tmpfile.name, 'w', encoding='utf-8') as tmpfile:
     24         vulcanize_trace_viewer.WriteTraceViewer(tmpfile)
     25     finally:
     26       os.remove(raw_tmpfile.name)
     27