Run pixel tests via automated script.

testing/tools/run_pixel_tests.py

Index: testing/tools/run_pixel_tests.py
diff --git a/testing/tools/run_javascript_tests.py b/testing/tools/run_pixel_tests.py
similarity index 81%
copy from testing/tools/run_javascript_tests.py
copy to testing/tools/run_pixel_tests.py
index 4361ea08f983009d630a0569f5bc37fe8372264f..07ea7d8ed8e2bbdd9b838f3a6ec9e7b4353ebeb3 100755
--- a/testing/tools/run_javascript_tests.py
+++ b/testing/tools/run_pixel_tests.py
@@ -20,14 +20,21 @@ def generate_and_test(input_filename, source_dir, working_dir,
   input_root, _ = os.path.splitext(input_filename)
   input_path = os.path.join(source_dir, input_root + '.in')
   pdf_path = os.path.join(working_dir, input_root + '.pdf')
-  txt_path = os.path.join(working_dir, input_root + '.txt')
-  expected_path = os.path.join(source_dir, input_root + '_expected.txt')
+  actual_path_template = os.path.join(working_dir, input_root + '.pdf.%d.ppm')
+  expected_path_template = os.path.join(source_dir,
+                                        input_root + '_expected.pdf.%d.ppm')
   try:
     subprocess.check_call(
         [fixup_path, '--output-dir=' + working_dir, input_path])
-    with open(txt_path, 'w') as outfile:
-      subprocess.check_call([pdfium_test_path, pdf_path], stdout=outfile)
-    subprocess.check_call(['diff', expected_path, txt_path])
+    subprocess.check_call([pdfium_test_path, '--ppm', pdf_path])
+    i = 0;
+    while True:
+      expected_path = expected_path_template % i;
+      actual_path = actual_path_template % i;
+      if not os.path.exists(expected_path):
+        break
+      subprocess.check_call(['diff', expected_path, actual_path])
+      i += 1
   except subprocess.CalledProcessError as e:
     print "FAILURE: " + input_filename + "; " + str(e)
 
@@ -49,8 +56,8 @@ def main():
   # Other scripts are found in the same directory as this one.
   fixup_path = os.path.join(my_dir, 'fixup_pdf_template.py')
 
-  # test files are in .../pdfium/testing/resources/javascript.
-  source_dir = os.path.join(testing_dir, 'resources', 'javascript')
+  # test files are in .../pdfium/testing/resources/pixel.
+  source_dir = os.path.join(testing_dir, 'resources', 'pixel')
 
   # Find path to build directory.  This depends on whether this is a
   # standalone build vs. a build as part of a chromium checkout. For
@@ -74,7 +81,7 @@ def main():
 
   # Place generated files under the build directory, not source directory.
   gen_dir = os.path.join(build_dir, 'gen', 'pdfium')
-  working_dir = os.path.join(gen_dir, 'testing', 'javascript')
+  working_dir = os.path.join(gen_dir, 'testing', 'pixel')
   if not os.path.exists(working_dir):
     os.makedirs(working_dir)