Revert of Combined test runner. (patchset #2 id:20001 of https://codereview.chromium.org/1850273003/ )

Reason for revert:
Broke Dr. Memory

Original issue's description:
> Combined test runner.
>
> This CL revives the old CL to combine the test runners [1] which was reverted
> due to failing font_size tests. I've deleted the font_size.pdf as it is not
> needed and for testing. Pixel tests are either .in or .pdf files, not both.
>
> Original description:
> This CL takes the three test runners (corpus, javascript, pixel) and combines
> the code into a single test_runner file. Each of the individual runners still
> exists and calls the test runner with their data directory.
>
> With this change, the pixel and javascript test will now run in parallel if
> multiple processors are available.
>
> 1-https://codereview.chromium.org/1430623006/
>
> Committed: https://pdfium.googlesource.com/pdfium/+/03e8f12cd3788038225d0376a164a9993f6cb720

TBR=tsepez@chromium.org,thestig@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1867643002

1 files changed, 95 insertions, 3 deletions

diff --git a/testing/tools/run_pixel_tests.py b/testing/tools/run_pixel_tests.py
index aad39c5600..8a102f4c42 100755
--- a/testing/tools/run_pixel_tests.py
+++ b/testing/tools/run_pixel_tests.py
@@ -3,13 +3,105 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import optparse
+import os
+import re
+import subprocess
 import sys
 
-import test_runner
+import common
+import pngdiffer
+import suppressor
+
+# Nomenclature:
+#   x_root - "x"
+#   x_filename - "x.ext"
+#   x_path - "path/to/a/b/c/x.ext"
+#   c_dir - "path/to/a/b/c"
+
+def generate_and_test(input_filename, source_dir, working_dir,
+                      fixup_path, pdfium_test_path, image_differ,
+                      drmem_wrapper):
+  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')
+
+  # Remove any existing generated images from previous runs.
+  actual_images = image_differ.GetActualFiles(
+      input_filename, source_dir, working_dir)
+  for image in actual_images:
+    if os.path.exists(image):
+      os.remove(image)
+
+  try:
+    sys.stdout.flush()
+    subprocess.check_call(
+        [sys.executable, fixup_path, '--output-dir=' + working_dir, input_path])
+    # add Dr. Memory wrapper if exist
+    cmd_to_run = common.DrMemoryWrapper(drmem_wrapper, input_root)
+    cmd_to_run.extend([pdfium_test_path, '--png', pdf_path])
+    # run test
+    subprocess.check_call(cmd_to_run)
+  except subprocess.CalledProcessError as e:
+    print "FAILURE: " + input_filename + "; " + str(e)
+    return False
+  if image_differ.HasDifferences(input_filename, source_dir, working_dir):
+    print "FAILURE: " + input_filename
+    return False
+  return True
+
 
 def main():
-  runner = test_runner.TestRunner('pixel')
-  return runner.Run()
+  parser = optparse.OptionParser()
+  parser.add_option('--build-dir', default=os.path.join('out', 'Debug'),
+                    help='relative path from the base source directory')
+  parser.add_option('--wrapper', default='', dest="wrapper",
+                    help='Dr. Memory wrapper for running test under Dr. Memory')
+  options, args = parser.parse_args()
+  finder = common.DirectoryFinder(options.build_dir)
+  fixup_path = finder.ScriptPath('fixup_pdf_template.py')
+  source_dir = finder.TestingDir(os.path.join('resources', 'pixel'))
+  pdfium_test_path = finder.ExecutablePath('pdfium_test')
+  if not os.path.exists(pdfium_test_path):
+    print "FAILURE: Can't find test executable '%s'" % pdfium_test_path
+    print "Use --build-dir to specify its location."
+    return 1
+  working_dir = finder.WorkingDir(os.path.join('testing', 'pixel'))
+  if not os.path.exists(working_dir):
+    os.makedirs(working_dir)
+
+  feature_string = subprocess.check_output([pdfium_test_path, '--show-config'])
+  test_suppressor = suppressor.Suppressor(finder, feature_string)
+  image_differ = pngdiffer.PNGDiffer(finder)
+
+  input_files = []
+  if len(args):
+    for file_name in args:
+      input_files.append(file_name.replace(".pdf", ".in"))
+  else:
+    input_files = os.listdir(source_dir)
+
+  failures = []
+  input_file_re = re.compile('^[a-zA-Z0-9_.]+[.]in$')
+  for input_filename in input_files:
+    if input_file_re.match(input_filename):
+      input_path = os.path.join(source_dir, input_filename)
+      if os.path.isfile(input_path):
+        if test_suppressor.IsSuppressed(input_filename):
+          continue
+        if not generate_and_test(input_filename, source_dir, working_dir,
+                                 fixup_path, pdfium_test_path, image_differ,
+                                 options.wrapper):
+          failures.append(input_path)
+
+  if failures:
+    failures.sort()
+    print '\n\nSummary of Failures:'
+    for failure in failures:
+      print failure
+    return 1
+  return 0
+
 
 if __name__ == '__main__':
   sys.exit(main())