Fix heap use after free in CPDFSDK_Annot::GetPDFAnnot.
[pdfium.git] / testing / tools / pngdiffer.py
1 #!/usr/bin/env python
2 # Copyright 2015 The PDFium Authors. All rights reserved.
3 # Use of this source code is governed by a BSD-style license that can be
4 # found in the LICENSE file.
5
6 import os
7 import subprocess
8 import sys
9
10 class PNGDiffer():
11   ACTUAL_TEMPLATE = '.pdf.%d.png'
12   EXPECTED_TEMPLATE = '_expected' + ACTUAL_TEMPLATE
13   PLATFORM_EXPECTED_TEMPLATE = '_expected_%s' + ACTUAL_TEMPLATE
14
15   def __init__(self, finder):
16     self.pdfium_diff_path = finder.ExecutablePath('pdfium_diff')
17     self.os_name = finder.os_name
18
19   def HasDifferences(self, input_filename, source_dir, working_dir):
20     input_root, _ = os.path.splitext(input_filename)
21     actual_path_template = os.path.join(
22         working_dir, input_root + self.ACTUAL_TEMPLATE)
23     expected_path_template = os.path.join(
24         source_dir, input_root + self.EXPECTED_TEMPLATE)
25     platform_expected_path_template = os.path.join(
26         source_dir, input_root + self.PLATFORM_EXPECTED_TEMPLATE)
27     i = 0
28     try:
29       while True:
30         actual_path = actual_path_template % i
31         expected_path = expected_path_template % i
32         platform_expected_path = (
33             platform_expected_path_template % (self.os_name, i))
34         if os.path.exists(platform_expected_path):
35           expected_path = platform_expected_path
36         elif not os.path.exists(expected_path):
37           if i == 0:
38             print "WARNING: no expected results files for " + input_filename
39           break
40         print "Checking " + actual_path
41         sys.stdout.flush()
42         subprocess.check_call(
43             [self.pdfium_diff_path, expected_path, actual_path])
44         i += 1
45     except subprocess.CalledProcessError as e:
46       print "FAILURE: " + input_filename + "; " + str(e)
47       return True
48     return False