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#!/usr/bin/env python
# Copyright 2015 The PDFium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import subprocess
import sys
class PNGDiffer():
ACTUAL_TEMPLATE = '.pdf.%d.png'
EXPECTED_TEMPLATE = '_expected' + ACTUAL_TEMPLATE
def __init__(self, finder):
self.pdfium_diff_path = finder.ExecutablePath('pdfium_diff')
def HasDifferences(self, input_filename, source_dir, working_dir):
input_root, _ = os.path.splitext(input_filename)
actual_path_template = os.path.join(
working_dir, input_root + self.ACTUAL_TEMPLATE)
expected_path_template = os.path.join(
source_dir, input_root + self.EXPECTED_TEMPLATE)
i = 0
try:
while True:
actual_path = actual_path_template % i;
expected_path = expected_path_template % i;
if not os.path.exists(expected_path):
if i == 0:
print "WARNING: no expected results files for " + input_filename
break
print "Checking " + actual_path
sys.stdout.flush()
subprocess.check_call(
[self.pdfium_diff_path, expected_path, actual_path])
i += 1
except subprocess.CalledProcessError as e:
print "FAILURE: " + input_filename + "; " + str(e)
return True
return False
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