Strip comments and whitespace from Javascript resources

tools/grit/grit/flatten_resource_runner_unittest.py

+#!/usr/bin/env python
+# Copyright 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.
+
+import os
+import sys
+if __name__ == '__main__':

[Dan Beam, 2016/07/14 17:47:58]

why do you need to do this only if __name__ == '__main__'?  isn't this for the
"from grit import flatten_resource_runner" line below?

+  sys.path.append(os.path.join(os.path.dirname(__file__), '..'))

[Dan Beam, 2016/07/14 17:47:58]

can you just do this in the other if __name__ == '__main__' block?

+
+import unittest
+import tempfile

[Dan Beam, 2016/07/14 17:47:58]

nit: alpha

+
+from grit import flatten_resource_runner
+
+
+class FlattenResourceRunnerUnitest(unittest.TestCase):
+
+  def testIf(self):
+    '''Tests that a -D option is correctly handled'''
+    with tempfile.NamedTemporaryFile() as input_file,\
+         tempfile.NamedTemporaryFile() as output_file:

[Dan Beam, 2016/07/14 17:47:58]

where do these get deleted?

+      input_file.write('Hello <if expr="T1==1"> good</if>'
+                       '<if expr="T2==2"> bad</if> test')
+      input_file.seek(0)

[Dan Beam, 2016/07/14 17:47:58]

what's this seek(0) for?  can we just close() instead?

+      flatten_resource_runner.Main(['-DT1=1',
+                                    input_file.name,
+                                    output_file.name])
+      self.failUnlessEqual('Hello good test', output_file.read())
+    pass
+
+  def testInclude(self):
+    '''Tests that an include is correctly handled'''
+    with tempfile.NamedTemporaryFile() as input_file,\
+         tempfile.NamedTemporaryFile() as output_file,\
+         tempfile.NamedTemporaryFile() as include_file:
+      input_file.write('<include src="' + include_file.name + '">')
+      input_file.seek(0)
+      include_file.write('Hello included')
+      include_file.seek(0)
+      flatten_resource_runner.Main([input_file.name, output_file.name])
+      self.failUnlessEqual('Hello included', output_file.read())
+    pass
+
+
+if __name__ == '__main__':
+  unittest.main()