| #!/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 |
| PLATFORM_EXPECTED_TEMPLATE = '_expected_%s' + ACTUAL_TEMPLATE |
| |
| def __init__(self, finder): |
| self.pdfium_diff_path = finder.ExecutablePath('pdfium_diff') |
| self.os_name = finder.os_name |
| |
| 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) |
| platform_expected_path_template = os.path.join( |
| source_dir, input_root + self.PLATFORM_EXPECTED_TEMPLATE) |
| i = 0 |
| try: |
| while True: |
| actual_path = actual_path_template % i |
| expected_path = expected_path_template % i |
| platform_expected_path = ( |
| platform_expected_path_template % (self.os_name, i)) |
| if os.path.exists(platform_expected_path): |
| expected_path = platform_expected_path |
| elif 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 |
