Refactor PDFium python test utilities.

testing/tools/suppressor.py

+#!/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 common
+
+class Suppressor:
+  SUPPRESSIONS_FILENAME = 'SUPPRESSIONS'
+  PLATFORM_SUPPRESSIONS_FILENAME = 'SUPPRESSIONS_%s' % common.os_name()
+
+  def __init__(self, finder):
+    testing_dir = finder.TestingDir()
+    self.suppression_list = self._ExtractSuppressions(
+      os.path.join(testing_dir, self.SUPPRESSIONS_FILENAME))
+    self.platform_suppression_list = self._ExtractSuppressions(
+      os.path.join(testing_dir, self.PLATFORM_SUPPRESSIONS_FILENAME))
+
+  def _ExtractSuppressions(self, suppressions_filename):
+    with open(suppressions_filename) as f:
+      return [y for y in [x.split('#')[0].strip() for x in f.readlines()] if y]
+
+  def IsSuppressed(self, input_filename):
+    if input_filename in self.suppression_list:
+      print ("Not running %s, found in %s file" %
+             (input_filename, self.SUPPRESSIONS_FILENAME))
+      return True
+    if input_filename in self.platform_suppression_list:
+      print ("Not running %s, found in %s file" %
+             (input_filename, self.PLATFORM_SUPPRESSIONS_FILENAME))
+      return True
+    return False