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Side by Side Diff: chrome/test/functional/ispy/server/main_view_handler.py

Issue 222873002: Remove pyauto tests. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: sync Created 6 years, 8 months ago
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1 # Copyright 2013 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 """Request handler to serve the main_view page."""
6
7 import jinja2
8 import json
9 import os
10 import re
11 import sys
12 import webapp2
13
14 import ispy_api
15 from common import constants
16 from common import ispy_utils
17
18 import gs_bucket
19 import views
20
21 JINJA = jinja2.Environment(
22 loader=jinja2.FileSystemLoader(os.path.dirname(views.__file__)),
23 extensions=['jinja2.ext.autoescape'])
24
25
26 class MainViewHandler(webapp2.RequestHandler):
27 """Request handler to serve the main_view page."""
28
29 def get(self):
30 """Handles a get request to the main_view page.
31
32 If the test_run parameter is specified, then a page displaying all of
33 the failed runs in the test_run will be shown. Otherwise a view listing
34 all of the test_runs available for viewing will be displayed.
35 """
36 test_run = self.request.get('test_run')
37 bucket = gs_bucket.GoogleCloudStorageBucket(constants.BUCKET)
38 ispy = ispy_utils.ISpyUtils(bucket)
39 # Load the view.
40 if test_run:
41 self._GetForTestRun(test_run, ispy)
42 return
43 self._GetAllTestRuns(ispy)
44
45 def _GetAllTestRuns(self, ispy):
46 """Renders a list view of all of the test_runs available in GS.
47
48 Args:
49 ispy: An instance of ispy_api.ISpyApi.
50 """
51 template = JINJA.get_template('list_view.html')
52 data = {}
53 test_runs = set([path.lstrip('/').split('/')[1] for path in
54 ispy.GetAllPaths('failures/')])
55 base_url = '/?test_run=%s'
56 data['links'] = [(test_run, base_url % test_run) for test_run in test_runs]
57 self.response.write(template.render(data))
58
59 def _GetForTestRun(self, test_run, ispy):
60 """Renders a sorted list of failure-rows for a given test_run.
61
62 This method will produce a list of failure-rows that are sorted
63 in descending order by number of different pixels.
64
65 Args:
66 test_run: The name of the test_run to render failure rows from.
67 ispy: An instance of ispy_api.ISpyApi.
68 """
69 paths = set([path for path in ispy.GetAllPaths('failures/' + test_run)
70 if path.endswith('actual.png')])
71 can_rebaseline = ispy_api.ISpyApi(
72 ispy.cloud_bucket).CanRebaselineToTestRun(test_run)
73 rows = [self._CreateRow(test_run, path, ispy) for path in paths]
74
75 # Function that sorts by the different_pixels field in the failure-info.
76 def _Sorter(a, b):
77 return cmp(b['percent_different'],
78 a['percent_different'])
79 template = JINJA.get_template('main_view.html')
80 self.response.write(
81 template.render({'comparisons': sorted(rows, _Sorter),
82 'test_run': test_run,
83 'can_rebaseline': can_rebaseline}))
84
85 def _CreateRow(self, test_run, path, ispy):
86 """Creates one failure-row.
87
88 This method builds a dictionary with the data necessary to display a
89 failure in the main_view html template.
90
91 Args:
92 test_run: The name of the test_run the failure is in.
93 path: A path to the failure's actual.png file.
94 ispy: An instance of ispy_api.ISpyApi.
95
96 Returns:
97 A dictionary with fields necessary to render a failure-row
98 in the main_view html template.
99 """
100 res = {}
101 res['expectation'] = path.lstrip('/').split('/')[2]
102 res['test_run'] = test_run
103 res['info'] = json.loads(ispy.cloud_bucket.DownloadFile(
104 ispy_utils.GetFailurePath(res['test_run'], res['expectation'],
105 'info.txt')))
106 expected = ispy_utils.GetExpectationPath(
107 res['expectation'], 'expected.png')
108 diff = ispy_utils.GetFailurePath(test_run, res['expectation'], 'diff.png')
109 res['percent_different'] = res['info']['fraction_different'] * 100
110 res['expected_path'] = expected
111 res['diff_path'] = diff
112 res['actual_path'] = path
113 res['expected'] = ispy.cloud_bucket.GetImageURL(expected)
114 res['diff'] = ispy.cloud_bucket.GetImageURL(diff)
115 res['actual'] = ispy.cloud_bucket.GetImageURL(path)
116 return res
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