Remove contents of grit's SVN repository.

grit/gather/chrome_scaled_image_unittest.py

-#!/usr/bin/env python
-# Copyright (c) 2012 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 ChromeScaledImage.'''
-
-
-import re
-import struct
-import unittest
-import zlib
-
-from grit import exception
-from grit import util
-from grit.format import data_pack
-from grit.tool import build
-
-
-_OUTFILETYPES = [
-  ('.h', 'rc_header'),
-  ('_map.cc', 'resource_map_source'),
-  ('_map.h', 'resource_map_header'),
-  ('.pak', 'data_package'),
-  ('.rc', 'rc_all'),
-]
-
-
-_PNG_HEADER = (
-    '\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52'
-    '\x00\x00\x00\x01\x00\x00\x00\x01\x08\x02\x00\x00\x00\x90\x77\x53'
-    '\xde')
-_PNG_FOOTER = (
-    '\x00\x00\x00\x0c\x49\x44\x41\x54\x18\x57\x63\xf8\xff\xff\x3f\x00'
-    '\x05\xfe\x02\xfe\xa7\x35\x81\x84\x00\x00\x00\x00\x49\x45\x4e\x44'
-    '\xae\x42\x60\x82')
-
-
-def _MakePNG(chunks):
-  pack_int32 = struct.Struct('>i').pack
-  chunks = [pack_int32(len(payload)) + type + payload + pack_int32(zlib.crc32(type + payload))
-            for type, payload in chunks]
-  return _PNG_HEADER + ''.join(chunks) + _PNG_FOOTER
-
-
-def _GetFilesInPak(pakname):
-  '''Get a set of the files that were actually included in the .pak output.
-  '''
-  return set(data_pack.DataPack.ReadDataPack(pakname).resources.values())
-
-
-def _GetFilesInRc(rcname, tmp_dir, contents):
-  '''Get a set of the files that were actually included in the .rc output.
-  '''
-  data = util.ReadFile(rcname, util.BINARY).decode('utf-16')
-  contents = dict((tmp_dir.GetPath(k), v) for k, v in contents.items())
-  return set(contents[m.group(1)]
-             for m in re.finditer(ur'(?m)^\w+\s+BINDATA\s+"([^"]+)"$', data))
-
-
-def _MakeFallbackAttr(fallback):
-  if fallback is None:
-    return ''
-  else:
-    return ' fallback_to_low_resolution="%s"' % ('false', 'true')[fallback]
-
-
-def _Structures(fallback, *body):
-  return '<structures%s>\n%s\n</structures>' % (
-      _MakeFallbackAttr(fallback), '\n'.join(body))
-
-
-def _Structure(name, file, fallback=None):
-  return '<structure name="%s" file="%s" type="chrome_scaled_image"%s />' % (
-      name, file, _MakeFallbackAttr(fallback))
-
-
-def _If(expr, *body):
-  return '<if expr="%s">\n%s\n</if>' % (expr, '\n'.join(body))
-
-
-def _RunBuildTest(self, structures, inputs, expected_outputs, skip_rc=False, layout_fallback=''):
-  outputs = '\n'.join('<output filename="out/%s%s" type="%s" context="%s"%s />'
-                              % (context, ext, type, context, layout_fallback)
-                      for ext, type in _OUTFILETYPES
-                      for context in expected_outputs)
-
-  infiles = {
-    'in/in.grd': '''<?xml version="1.0" encoding="UTF-8"?>
-      <grit latest_public_release="0" current_release="1">
-        <outputs>
-          %s
-        </outputs>
-        <release seq="1">
-          %s
-        </release>
-      </grit>
-      ''' % (outputs, structures),
-  }
-  for pngpath, pngdata in inputs.items():
-    infiles['in/' + pngpath] = pngdata
-  class Options(object):
-    pass
-  with util.TempDir(infiles) as tmp_dir:
-    with tmp_dir.AsCurrentDir():
-      options = Options()
-      options.input = tmp_dir.GetPath('in/in.grd')
-      options.verbose = False
-      options.extra_verbose = False
-      build.RcBuilder().Run(options, [])
-    for context, expected_data in expected_outputs.items():
-      self.assertEquals(expected_data,
-                        _GetFilesInPak(tmp_dir.GetPath('out/%s.pak' % context)))
-      if not skip_rc:
-        self.assertEquals(expected_data,
-                          _GetFilesInRc(tmp_dir.GetPath('out/%s.rc' % context),
-                                        tmp_dir, infiles))
-
-
-class ChromeScaledImageUnittest(unittest.TestCase):
-  def testNormalFallback(self):
-    d123a = _MakePNG([('AbCd', '')])
-    t123a = _MakePNG([('EfGh', '')])
-    d123b = _MakePNG([('IjKl', '')])
-    _RunBuildTest(self,
-        _Structures(None,
-            _Structure('IDR_A', 'a.png'),
-            _Structure('IDR_B', 'b.png'),
-        ),
-        {'default_123_percent/a.png': d123a,
-         'tactile_123_percent/a.png': t123a,
-         'default_123_percent/b.png': d123b,
-        },
-        {'default_123_percent': set([d123a, d123b]),
-         'tactile_123_percent': set([t123a, d123b]),
-        })
-
-  def testNormalFallbackFailure(self):
-    self.assertRaises(exception.FileNotFound,
-        _RunBuildTest, self,
-            _Structures(None,
-                _Structure('IDR_A', 'a.png'),
-            ),
-            {'default_100_percent/a.png': _MakePNG([('AbCd', '')]),
-             'tactile_100_percent/a.png': _MakePNG([('EfGh', '')]),
-            },
-            {'tactile_123_percent': 'should fail before using this'})
-
-  def testLowresFallback(self):
-    png = _MakePNG([('Abcd', '')])
-    png_with_csCl = _MakePNG([('csCl', ''),('Abcd', '')])
-    for outer in (None, False, True):
-      for inner in (None, False, True):
-        args = (
-            self,
-            _Structures(outer,
-                _Structure('IDR_A', 'a.png', inner),
-            ),
-            {'default_100_percent/a.png': png},
-            {'tactile_200_percent': set([png_with_csCl])})
-        if inner or (inner is None and outer):
-          # should fall back to 100%
-          _RunBuildTest(*args, skip_rc=True)
-        else:
-          # shouldn't fall back
-          self.assertRaises(exception.FileNotFound, _RunBuildTest, *args)
-
-    # Test fallback failure with fallback_to_low_resolution=True
-    self.assertRaises(exception.FileNotFound,
-        _RunBuildTest, self,
-            _Structures(True,
-                _Structure('IDR_A', 'a.png'),
-            ),
-            {},  # no files
-            {'tactile_123_percent': 'should fail before using this'})
-
-  def testNoFallbackToDefaultLayout(self):
-    d123a = _MakePNG([('AbCd', '')])
-    t123a = _MakePNG([('EfGh', '')])
-    d123b = _MakePNG([('IjKl', '')])
-    _RunBuildTest(self,
-        _Structures(None,
-            _Structure('IDR_A', 'a.png'),
-            _Structure('IDR_B', 'b.png'),
-        ),
-        {'default_123_percent/a.png': d123a,
-         'tactile_123_percent/a.png': t123a,
-         'default_123_percent/b.png': d123b,
-        },
-        {'default_123_percent': set([d123a, d123b]),
-         'tactile_123_percent': set([t123a]),
-        },
-        layout_fallback=' fallback_to_default_layout="false"')