#!/usr/bin/python

#

# Copyright (C) 2010 Google Inc. All rights reserved.

# Copyright (C) 2009 Torch Mobile Inc.

# Copyright (C) 2009 Apple Inc. All rights reserved.

# Copyright (C) 2010 Chris Jerdonek (chris.jerdonek@gmail.com)

#

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# modification, are permitted provided that the following conditions are

# met:

#

#    * Redistributions of source code must retain the above copyright

# notice, this list of conditions and the following disclaimer.

#    * Redistributions in binary form must reproduce the above

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# distribution.

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import unittest

from webkitpy.style.patchreader import PatchReader

class PatchReaderTest(unittest.TestCase):

    """Test the PatchReader class."""

    class MockTextFileReader(object):

        def __init__(self):

            self.passed_to_process_file = []

            """A list of (file_path, line_numbers) pairs."""

        def process_file(self, file_path, line_numbers):

            self.passed_to_process_file.append((file_path, line_numbers))

    def setUp(self):

        file_reader = self.MockTextFileReader()

        self._file_reader = file_reader

        self._patch_checker = PatchReader(file_reader)

    def _call_check_patch(self, patch_string):

        self._patch_checker.check(patch_string)

    def _assert_checked(self, passed_to_process_file):

        self.assertEquals(self._file_reader.passed_to_process_file,

                          passed_to_process_file)

    def test_check_patch(self):

        # The modified line_numbers array for this patch is: [2].

        self._call_check_patch("""diff --git a/__init__.py b/__init__.py

index ef65bee..e3db70e 100644

--- a/__init__.py

+++ b/__init__.py

@@ -1,1 +1,2 @@

 # Required for Python to search this directory for module files

+# New line

""")

        self._assert_checked([("__init__.py", set([2]))])

    def test_check_patch_with_deletion(self):

        self._call_check_patch("""Index: __init__.py

===================================================================

--- __init__.py  (revision 3593)

+++ __init__.py  (working copy)

@@ -1 +0,0 @@

-foobar

""")

        # _mock_check_file should not be called for the deletion patch.

        self._assert_checked([])