Revert "Revert "delete old things!""

gm/rebaseline_server/imagepair_test.py

-#!/usr/bin/python
-
-"""
-Copyright 2014 Google Inc.
-
-Use of this source code is governed by a BSD-style license that can be
-found in the LICENSE file.
-
-Test imagepair.py
-"""
-
-# System-level imports
-import shutil
-import tempfile
-import unittest
-
-# Local imports
-import imagediffdb
-import imagepair
-
-
-IMG_URL_BASE = ('http://chromium-skia-gm.commondatastorage.googleapis.com/'
-                'gm/bitmap-64bitMD5/')
-
-
-class ImagePairTest(unittest.TestCase):
-
-  def setUp(self):
-    self.temp_dir = tempfile.mkdtemp()
-    self.maxDiff = None
-
-  def tearDown(self):
-    shutil.rmtree(self.temp_dir)
-
-  def shortDescription(self):
-    """Tells unittest framework to not print docstrings for test cases."""
-    return None
-
-  def test_endToEnd(self):
-    """Tests ImagePair, using a real ImageDiffDB to download real images.
-
-    TODO(epoger): Either in addition to or instead of this end-to-end test,
-    we should perform some tests using either:
-    1. a mock ImageDiffDB, or
-    2. a real ImageDiffDB that doesn't hit Google Storage looking for input
-       image files (maybe a file:// IMG_URL_BASE)
-    """
-    # params for each self-test:
-    #
-    # inputs:
-    #  0. imageA_relative_URL
-    #  1. imageB_relative_URL
-    #  2. expectations dict
-    #  3. extra_columns dict
-    # expected output:
-    #  4. expected result of ImagePair.as_dict()
-    selftests = [
-        [
-            # inputs:
-            'arcofzorro/16206093933823793653.png',
-            'arcofzorro/16206093933823793653.png',
-            None,
-            {
-                'builder': 'MyBuilder',
-                'test': 'MyTest',
-            },
-            # expected output:
-            {
-                'extraColumns': {
-                    'builder': 'MyBuilder',
-                    'test': 'MyTest',
-                },
-                'imageAUrl': 'arcofzorro/16206093933823793653.png',
-                'imageBUrl': 'arcofzorro/16206093933823793653.png',
-                'isDifferent': False,
-            },
-        ],
-
-        [
-            # inputs:
-            'arcofzorro/16206093933823793653.png',
-            'arcofzorro/13786535001616823825.png',
-            None,
-            None,
-            # expected output:
-            {
-                'differenceData': {
-                    'maxDiffPerChannel': [255, 255, 247],
-                    'numDifferingPixels': 662,
-                    'percentDifferingPixels': 0.0662,
-                    'perceptualDifference': 0.06620300000000157,
-                    'diffUrl': 'arcofzorro_16206093933823793653_png_png-vs-' +
-                        'arcofzorro_13786535001616823825_png_png.png',
-                    'whiteDiffUrl': 'arcofzorro_16206093933823793653_png_png' +
-                        '-vs-arcofzorro_13786535001616823825_png_png.png',
-                },
-                'imageAUrl': 'arcofzorro/16206093933823793653.png',
-                'imageBUrl': 'arcofzorro/13786535001616823825.png',
-                'isDifferent': True,
-            },
-        ],
-
-        [
-            # inputs:
-            'gradients_degenerate_2pt/10552995703607727960.png',
-            'gradients_degenerate_2pt/11198253335583713230.png',
-            {
-                'ignoreFailure': True,
-                'bugs': [1001, 1002],
-            },
-            {
-                'builder': 'MyBuilder',
-                'test': 'MyTest',
-            },
-            # expected output:
-            {
-                'differenceData': {
-                    'maxDiffPerChannel': [255, 0, 255],
-                    'numDifferingPixels': 102400,
-                    'percentDifferingPixels': 100.00,
-                    'perceptualDifference': 100.00,
-                    'diffUrl': 'gradients_degenerate_2pt_10552995703607727960' +
-                               '_png_png-vs-gradients_degenerate_2pt_' +
-                               '11198253335583713230_png_png.png',
-                    'whiteDiffUrl': 'gradients_degenerate_2pt_' +
-                               '10552995703607727960_png_png-vs-' +
-                               'gradients_degenerate_2pt_11198253335583713230' +
-                               '_png_png.png'
-                },
-                'expectations': {
-                    'bugs': [1001, 1002],
-                    'ignoreFailure': True,
-                },
-                'extraColumns': {
-                    'builder': 'MyBuilder',
-                    'test': 'MyTest',
-                },
-                'imageAUrl':
-                    'gradients_degenerate_2pt/10552995703607727960.png',
-                'imageBUrl':
-                    'gradients_degenerate_2pt/11198253335583713230.png',
-                'isDifferent': True,
-            },
-        ],
-
-        # Test fix for http://skbug.com/2368 -- how do we handle an ImagePair
-        # missing one of its images?
-        [
-            # inputs:
-            'arcofzorro/16206093933823793653.png',
-            'nonexistentDir/111111.png',
-            {
-                'ignoreFailure': True,
-                'bugs': [1001, 1002],
-            },
-            {
-                'builder': 'MyBuilder',
-                'test': 'MyTest',
-            },
-            # expected output:
-            {
-                'expectations': {
-                    'bugs': [1001, 1002],
-                    'ignoreFailure': True,
-                },
-                'extraColumns': {
-                    'builder': 'MyBuilder',
-                    'test': 'MyTest',
-                },
-                'imageAUrl': 'arcofzorro/16206093933823793653.png',
-                'imageBUrl': 'nonexistentDir/111111.png',
-                'isDifferent': True,
-            },
-        ],
-
-        # One of the two images is missing, but download_all_images=True so we
-        # should download it anyway.
-        [
-            # inputs:
-            None,
-            'arcofzorro/13786535001616823825.png',
-            None,
-            None,
-            # expected output:
-            {
-                'imageAUrl': None,
-                'imageBUrl': 'arcofzorro/13786535001616823825.png',
-                'isDifferent': True,
-            },
-        ],
-
-    ]
-
-    db = imagediffdb.ImageDiffDB(self.temp_dir)
-    for selftest in selftests:
-      image_pair = imagepair.ImagePair(
-          image_diff_db=db,
-          imageA_base_url=IMG_URL_BASE,
-          imageB_base_url=IMG_URL_BASE,
-          imageA_relative_url=selftest[0],
-          imageB_relative_url=selftest[1],
-          expectations=selftest[2],
-          extra_columns=selftest[3],
-          download_all_images=True)
-      self.assertEqual(image_pair.as_dict(), selftest[4])
-
-
-def main():
-  suite = unittest.TestLoader().loadTestsFromTestCase(ImagePairTest)
-  unittest.TextTestRunner(verbosity=2).run(suite)
-
-
-if __name__ == '__main__':
-  main()