68a3815401
(no behavioral change, no change to JSON file format) (SkipBuildbotRuns) NOTREECHECKS=True NOTRY=True R=rmistry@google.com Author: epoger@google.com Review URL: https://codereview.chromium.org/287473002 git-svn-id: http://skia.googlecode.com/svn/trunk@14701 2bbb7eff-a529-9590-31e7-b0007b416f81
91 lines
3.5 KiB
Python
91 lines
3.5 KiB
Python
#!/usr/bin/python
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"""
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Copyright 2014 Google Inc.
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Use of this source code is governed by a BSD-style license that can be
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found in the LICENSE file.
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ImagePair class (see class docstring for details)
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"""
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import posixpath
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# Keys used within ImagePair dictionary representations.
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# NOTE: Keep these in sync with static/constants.js
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KEY__IMAGEPAIRS__DIFFERENCES = 'differenceData'
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KEY__IMAGEPAIRS__EXPECTATIONS = 'expectations'
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KEY__IMAGEPAIRS__EXTRACOLUMNS = 'extraColumns'
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KEY__IMAGEPAIRS__IMAGE_A_URL = 'imageAUrl'
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KEY__IMAGEPAIRS__IMAGE_B_URL = 'imageBUrl'
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KEY__IMAGEPAIRS__IS_DIFFERENT = 'isDifferent'
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class ImagePair(object):
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"""Describes a pair of images, pixel difference info, and optional metadata.
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"""
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def __init__(self, image_diff_db,
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base_url, imageA_relative_url, imageB_relative_url,
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expectations=None, extra_columns=None):
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"""
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Args:
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image_diff_db: ImageDiffDB instance we use to generate/store image diffs
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base_url: base of all image URLs
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imageA_relative_url: string; URL pointing at an image, relative to
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base_url; or None, if this image is missing
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imageB_relative_url: string; URL pointing at an image, relative to
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base_url; or None, if this image is missing
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expectations: optional dictionary containing expectations-specific
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metadata (ignore-failure, bug numbers, etc.)
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extra_columns: optional dictionary containing more metadata (test name,
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builder name, etc.)
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"""
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self.base_url = base_url
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self.imageA_relative_url = imageA_relative_url
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self.imageB_relative_url = imageB_relative_url
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self.expectations_dict = expectations
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self.extra_columns_dict = extra_columns
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if not imageA_relative_url or not imageB_relative_url:
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self._is_different = True
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self.diff_record = None
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elif imageA_relative_url == imageB_relative_url:
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self._is_different = False
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self.diff_record = None
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else:
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# TODO(epoger): Rather than blocking until image_diff_db can read in
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# the image pair and generate diffs, it would be better to do it
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# asynchronously: tell image_diff_db to download a bunch of file pairs,
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# and only block later if we're still waiting for diff_records to come
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# back.
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self._is_different = True
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image_diff_db.add_image_pair(
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expected_image_locator=imageA_relative_url,
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expected_image_url=posixpath.join(base_url, imageA_relative_url),
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actual_image_locator=imageB_relative_url,
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actual_image_url=posixpath.join(base_url, imageB_relative_url))
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self.diff_record = image_diff_db.get_diff_record(
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expected_image_locator=imageA_relative_url,
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actual_image_locator=imageB_relative_url)
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if self.diff_record and self.diff_record.get_num_pixels_differing() == 0:
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self._is_different = False
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def as_dict(self):
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"""Returns a dictionary describing this ImagePair.
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Uses the KEY__IMAGEPAIRS__* constants as keys.
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"""
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asdict = {
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KEY__IMAGEPAIRS__IMAGE_A_URL: self.imageA_relative_url,
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KEY__IMAGEPAIRS__IMAGE_B_URL: self.imageB_relative_url,
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}
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asdict[KEY__IMAGEPAIRS__IS_DIFFERENT] = self._is_different
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if self.expectations_dict:
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asdict[KEY__IMAGEPAIRS__EXPECTATIONS] = self.expectations_dict
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if self.extra_columns_dict:
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asdict[KEY__IMAGEPAIRS__EXTRACOLUMNS] = self.extra_columns_dict
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if self.diff_record and (self.diff_record.get_num_pixels_differing() > 0):
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asdict[KEY__IMAGEPAIRS__DIFFERENCES] = self.diff_record.as_dict()
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return asdict
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