src/chrome/test/ispy/common/ispy_utils_unittest.py

   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 import os
   6 from PIL import Image
   7 import sys
   8 import unittest
   9
  10 import cloud_bucket
  11 import image_tools
  12 import ispy_utils
  13 import mock_cloud_bucket
  14
  15
  16 class ISpyUtilsUnitTest(unittest.TestCase):
  17
  18   def setUp(self):
  19     # Set up structures that will be reused throughout testing.
  20     self.bucket = mock_cloud_bucket.MockCloudBucket()
  21     self.ispy_utils = ispy_utils.ISpyUtils(self.bucket)
  22     self.white = Image.new('RGBA', (25, 25), (255, 255, 255, 255))
  23     self.red = Image.new('RGBA', (25, 25), (255, 0, 0, 255))
  24     self.black = Image.new('RGBA', (25, 25), (0, 0, 0, 255))
  25     self.masked = Image.new('RGBA', (25, 25), (210, 0, 0, 255))
  26
  27   def testUploadImage(self):
  28     self.bucket.Reset()
  29     # Upload some images to the datastore.
  30     self.ispy_utils.UploadImage('path/to/white.png', self.white)
  31     self.ispy_utils.UploadImage('path/to/black.png', self.black)
  32     self.ispy_utils.UploadImage('path/to/red.png', self.red)
  33     # Confirm that the images actually got uploaded.
  34     self.assertEquals(self.bucket.datastore['path/to/white.png'],
  35                       image_tools.EncodePNG(self.white))
  36     self.assertEquals(self.bucket.datastore['path/to/black.png'],
  37                       image_tools.EncodePNG(self.black))
  38     self.assertEquals(self.bucket.datastore['path/to/red.png'],
  39                       image_tools.EncodePNG(self.red))
  40
  41   def testDownloadImage(self):
  42     self.bucket.Reset()
  43     # Upload some images to the datastore.
  44     self.ispy_utils.UploadImage('path/to/white.png', self.white)
  45     self.ispy_utils.UploadImage('path/to/black.png', self.black)
  46     self.ispy_utils.UploadImage('path/to/red.png', self.red)
  47     # Check that the DownloadImage function gets the correct images.
  48     self.assertEquals(
  49         image_tools.EncodePNG(
  50             self.ispy_utils.DownloadImage('path/to/white.png')),
  51         image_tools.EncodePNG(self.white))
  52     self.assertEquals(
  53         image_tools.EncodePNG(
  54             self.ispy_utils.DownloadImage('path/to/black.png')),
  55         image_tools.EncodePNG(self.black))
  56     self.assertEquals(
  57         image_tools.EncodePNG(
  58             self.ispy_utils.DownloadImage('path/to/red.png')),
  59         image_tools.EncodePNG(self.red))
  60     # Check that the DownloadImage function throws an error for a
  61     #  nonexistant image.
  62     self.assertRaises(cloud_bucket.FileNotFoundError,
  63                       self.ispy_utils.DownloadImage,
  64                       'path/to/yellow.png')
  65
  66   def testUpdateImage(self):
  67     self.bucket.Reset()
  68     # Upload some images to the datastore.
  69     self.ispy_utils.UploadImage('path/to/image.png', self.white)
  70     self.assertEquals(self.bucket.datastore['path/to/image.png'],
  71                       image_tools.EncodePNG(self.white))
  72     self.ispy_utils.UpdateImage('path/to/image.png', self.black)
  73     # Confirm that the image actually got updated.
  74     self.assertEquals(self.bucket.datastore['path/to/image.png'],
  75                       image_tools.EncodePNG(self.black))
  76
  77   def testGenerateExpectation(self):
  78     self.bucket.Reset()
  79     # Upload some tests to the datastore.
  80     self.ispy_utils.GenerateExpectation('test', [self.white, self.black])
  81     self.ispy_utils.GenerateExpectation('test1', [self.black, self.black])
  82     self.ispy_utils.GenerateExpectation('test2', [self.black])
  83     # Confirm that the tests were successfully uploaded.
  84     self.assertEquals(self.bucket.datastore[
  85         ispy_utils.GetExpectationPath('test', 'expected.png')],
  86         image_tools.EncodePNG(self.white))
  87     self.assertEquals(self.bucket.datastore[
  88         ispy_utils.GetExpectationPath('test', 'mask.png')],
  89         image_tools.EncodePNG(self.white))
  90     self.assertEquals(self.bucket.datastore[
  91         ispy_utils.GetExpectationPath('test1', 'expected.png')],
  92         image_tools.EncodePNG(self.black))
  93     self.assertEquals(self.bucket.datastore[
  94         ispy_utils.GetExpectationPath('test1', 'mask.png')],
  95         image_tools.EncodePNG(self.black))
  96     self.assertEquals(self.bucket.datastore[
  97         ispy_utils.GetExpectationPath('test2', 'expected.png')],
  98         image_tools.EncodePNG(self.black))
  99     self.assertEquals(self.bucket.datastore[
 100         ispy_utils.GetExpectationPath('test2', 'mask.png')],
 101         image_tools.EncodePNG(self.black))
 102
 103   def testPerformComparison(self):
 104     self.bucket.Reset()
 105     self.ispy_utils.GenerateExpectation('test1', [self.red, self.red])
 106     self.ispy_utils.PerformComparison('test', 'test1', self.black)
 107     self.assertEquals(self.bucket.datastore[
 108         ispy_utils.GetFailurePath('test', 'test1', 'actual.png')],
 109         image_tools.EncodePNG(self.black))
 110     self.ispy_utils.PerformComparison('test', 'test1', self.red)
 111     self.assertTrue(self.bucket.datastore.has_key(
 112             ispy_utils.GetFailurePath('test', 'test1', 'actual.png')))
 113
 114   def testGetExpectation(self):
 115     self.bucket.Reset()
 116     # Upload some tests to the datastore
 117     self.ispy_utils.GenerateExpectation('test1', [self.white, self.black])
 118     self.ispy_utils.GenerateExpectation('test2', [self.red, self.white])
 119     test1 = self.ispy_utils.GetExpectation('test1')
 120     test2 = self.ispy_utils.GetExpectation('test2')
 121     # Check that GetExpectation gets the appropriate tests.
 122     self.assertEquals(image_tools.EncodePNG(test1.expected),
 123                       image_tools.EncodePNG(self.white))
 124     self.assertEquals(image_tools.EncodePNG(test1.mask),
 125                       image_tools.EncodePNG(self.white))
 126     self.assertEquals(image_tools.EncodePNG(test2.expected),
 127                       image_tools.EncodePNG(self.red))
 128     self.assertEquals(image_tools.EncodePNG(test2.mask),
 129                       image_tools.EncodePNG(self.white))
 130     # Check that GetExpectation throws an error for a nonexistant test.
 131     self.assertRaises(
 132         cloud_bucket.FileNotFoundError, self.ispy_utils.GetExpectation, 'test3')
 133
 134   def testExpectationExists(self):
 135     self.bucket.Reset()
 136     self.ispy_utils.GenerateExpectation('test1', [self.white, self.black])
 137     self.ispy_utils.GenerateExpectation('test2', [self.white, self.black])
 138     self.assertTrue(self.ispy_utils.ExpectationExists('test1'))
 139     self.assertTrue(self.ispy_utils.ExpectationExists('test2'))
 140     self.assertFalse(self.ispy_utils.ExpectationExists('test3'))
 141
 142   def testFailureExists(self):
 143     self.bucket.Reset()
 144     self.ispy_utils.GenerateExpectation('test1', [self.white, self.white])
 145     self.ispy_utils.PerformComparison('test', 'test1', self.black)
 146     self.ispy_utils.PerformComparison('test', 'test1', self.white)
 147     self.assertTrue(self.ispy_utils.FailureExists('test', 'test1'))
 148     self.assertFalse(self.ispy_utils.FailureExists('test', 'test2'))
 149
 150   def testRemoveExpectation(self):
 151     self.bucket.Reset()
 152     self.ispy_utils.GenerateExpectation('test1', [self.white, self.white])
 153     self.ispy_utils.GenerateExpectation('test2', [self.white, self.white])
 154     self.assertTrue(self.ispy_utils.ExpectationExists('test1'))
 155     self.assertTrue(self.ispy_utils.ExpectationExists('test2'))
 156     self.ispy_utils.RemoveExpectation('test1')
 157     self.assertFalse(self.ispy_utils.ExpectationExists('test1'))
 158     self.assertTrue(self.ispy_utils.ExpectationExists('test2'))
 159     self.ispy_utils.RemoveExpectation('test2')
 160     self.assertFalse(self.ispy_utils.ExpectationExists('test1'))
 161     self.assertFalse(self.ispy_utils.ExpectationExists('test2'))
 162
 163   def testRemoveFailure(self):
 164     self.bucket.Reset()
 165     self.ispy_utils.GenerateExpectation('test1', [self.white, self.white])
 166     self.ispy_utils.GenerateExpectation('test2', [self.white, self.white])
 167     self.ispy_utils.PerformComparison('test', 'test1', self.black)
 168     self.ispy_utils.RemoveFailure('test', 'test1')
 169     self.assertFalse(self.ispy_utils.FailureExists('test', 'test1'))
 170     self.assertTrue(self.ispy_utils.ExpectationExists('test1'))
 171     self.assertFalse(self.ispy_utils.FailureExists('test', 'test2'))
 172     self.assertTrue(self.ispy_utils.ExpectationExists('test2'))
 173
 174   def testGetFailure(self):
 175     self.bucket.Reset()
 176     # Upload a result
 177     self.ispy_utils.GenerateExpectation('test1', [self.red, self.red])
 178     self.ispy_utils.PerformComparison('test', 'test1', self.black)
 179     res = self.ispy_utils.GetFailure('test', 'test1')
 180     # Check that the function correctly got the result.
 181     self.assertEquals(image_tools.EncodePNG(res.expected),
 182                       image_tools.EncodePNG(self.red))
 183     self.assertEquals(image_tools.EncodePNG(res.diff),
 184                       image_tools.EncodePNG(self.masked))
 185     self.assertEquals(image_tools.EncodePNG(res.actual),
 186                       image_tools.EncodePNG(self.black))
 187     # Check that the function raises an error when given non-existant results.
 188     self.assertRaises(cloud_bucket.FileNotFoundError,
 189                       self.ispy_utils.GetFailure, 'test', 'test2')
 190
 191   def testGetAllPaths(self):
 192     self.bucket.Reset()
 193     # Upload some tests.
 194     self.ispy_utils.GenerateExpectation('test1', [self.white, self.black])
 195     # Check that the function gets all urls matching the prefix.
 196     self.assertEquals(
 197         set(self.ispy_utils.GetAllPaths(
 198             ispy_utils.GetExpectationPath('test1'))),
 199         set([ispy_utils.GetExpectationPath('test1', 'expected.png'),
 200              ispy_utils.GetExpectationPath('test1', 'mask.png')]))
 201     self.assertEquals(
 202         set(self.ispy_utils.GetAllPaths(
 203             ispy_utils.GetExpectationPath('test3'))), set())
 204
 205
 206 if __name__ == '__main__':
 207   unittest.main()