Compressing .pak resources with new option: "type=GZIPPABLE_BINDATA"

tools/grit/grit/format/gzip_string_unittest.py

+# Copyright (c) 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+'''Unit tests for grit.format.gzip_string'''
+
+
+import gzip
+import os
+import io
+import sys
+if __name__ == '__main__':
+  sys.path.append(os.path.join(os.path.dirname(__file__), '../..'))
+
+import unittest
+
+from grit.format import gzip_string
+
+
+class FormatGzipStringUnittest(unittest.TestCase):
+  def testGzipStringRsyncable(self):
+    # Can only test the rsyncable version on platforms which support rsyncable,
+    # which at the moment is Linux.
+    if sys.platform == 'linux2':
+      header_begin = ('\x1f\x8b') # gzip first two bytes
+      input = ('TEST STRING STARTING NOW'
+               'continuing'
+               '<even more>'
+               '<finished NOW>')
+
+      compressed = gzip_string.GzipStringRsyncable(input)
+      self.failUnless(header_begin == compressed[:2])
+
+      compressed_file = io.BytesIO()
+      compressed_file.write(compressed)
+      compressed_file.seek(0)
+
+      with gzip.GzipFile(mode='rb', fileobj=compressed_file) as f:
+        output = f.read()
+      self.failUnless(output == input)
+
+  def testGzipString(self):
+    header_begin = '\x1f\x8b' # gzip first two bytes
+    input = ('TEST STRING STARTING NOW'
+             'continuing'
+             '<even more>'
+             '<finished NOW>')
+
+    compressed = gzip_string.GzipString(input)
+    self.failUnless(header_begin == compressed[:2])
+
+    compressed_file = io.BytesIO()
+    compressed_file.write(compressed)
+    compressed_file.seek(0)
+
+    with gzip.GzipFile(mode='rb', fileobj=compressed_file) as f:
+      output = f.read()
+    self.failUnless(output == input)
+
+if __name__ == '__main__':
+  unittest.main()