Add magnifying ability, perceptual diff and improve layout of Skia Tryserver HTML output

compute_engine_scripts/telemetry/telemetry_slave_scripts/write_json_summary_test.py

 #!/usr/bin/env python
 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Tests for module write_json_summary.py"""
 
 import filecmp
 import os
 import shutil
 import tempfile
 import unittest
 
 import write_json_summary
 
 
 class TestWriteJsonSummary(unittest.TestCase):
 
   def setUp(self):
     self._test_json_dir = os.path.join(
         os.path.dirname(os.path.realpath(__file__)), 'test_data')
     self._output_file_name = 'summary.json'
     self._gm_json_path = os.path.join(self._test_json_dir, 'gm_json_mock.py')
     self._imagediffdb_path = os.path.join(self._test_json_dir,
                                           'imagediffdb_mock.py')
+    self._skpdiff_output_csv = os.path.join(self._test_json_dir, 'output.csv')
     self._actual_output_dir = tempfile.mkdtemp()
     self._actual_output_file_path = os.path.join(self._actual_output_dir,
                                                  self._output_file_name)
     self._gs_output_dir = 'gs://dummy-bucket/output-dir'
     self._gs_skp_dir = 'gs://dummy-bucket/skps'
     self._img_root = '/tmp/'
     self._nopatch_img_dir_name = 'nopatch'
     self._withpatch_img_dir_name = 'withpatch'
     self._slave_num = 1
 
   def tearDown(self):
     shutil.rmtree(self._actual_output_dir)
 
   def test_DifferentFiles(self):
     write_json_summary.WriteJsonSummary(
         img_root=self._img_root,
         nopatch_json=os.path.join(self._test_json_dir, 'output1.json'),
         nopatch_img_dir_name=self._nopatch_img_dir_name,
         withpatch_json=os.path.join(self._test_json_dir, 'output2.json'),
         withpatch_img_dir_name=self._withpatch_img_dir_name,
         output_file_path=self._actual_output_file_path,
         gs_output_dir=self._gs_output_dir,
         gs_skp_dir=self._gs_skp_dir,
         slave_num=self._slave_num,
         gm_json_path=self._gm_json_path,
-        imagediffdb_path=self._imagediffdb_path)
+        imagediffdb_path=self._imagediffdb_path,
+        skpdiff_output_csv=self._skpdiff_output_csv)
 
     self.assertTrue(
         filecmp.cmp(os.path.join(self._test_json_dir, self._output_file_name),
                     self._actual_output_file_path))
 
   def test_NoDifferentFiles(self):
     write_json_summary.WriteJsonSummary(
         img_root=self._img_root,
         nopatch_json=os.path.join(self._test_json_dir, 'output1.json'),
         nopatch_img_dir_name=self._nopatch_img_dir_name,
         withpatch_json=os.path.join(self._test_json_dir, 'output1.json'),
         withpatch_img_dir_name=self._withpatch_img_dir_name,
         output_file_path=self._actual_output_file_path,
         gs_output_dir=self._gs_output_dir,
         gs_skp_dir=self._gs_skp_dir,
         slave_num=self._slave_num,
         gm_json_path=self._gm_json_path,
-        imagediffdb_path=self._imagediffdb_path)
+        imagediffdb_path=self._imagediffdb_path,
+        skpdiff_output_csv=self._skpdiff_output_csv)
 
     self.assertFalse(os.path.isfile(self._actual_output_file_path))
 
 
 if __name__ == '__main__':
   unittest.main()