text: #!/usr/bin/env python
  #
  # __COPYRIGHT__
  #
  # Permission is hereby granted, free of charge, to any person obtaining
  # a copy of this software and associated documentation files (the
  # "Software"), to deal in the Software without restriction, including
  # without limitation the rights to use, copy, modify, merge, publish,
  # distribute, sublicense, and/or sell copies of the Software, and to
  # permit persons to whom the Software is furnished to do so, subject to
  # the following conditions:
  #
  # The above copyright notice and this permission notice shall be included
  # in all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  #
  
  __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
  
  import TestSCons
  
  _python_ = TestSCons._python_
  
  test = TestSCons.TestSCons()
  
  test.subdir('sub1', 'sub2')
  
  test.write('build.py', r"""
  import sys
  contents = open(sys.argv[2], 'rb').read()
  file = open(sys.argv[1], 'wb')
  file.write(contents)
  file.close()
  """)
  
  test.write('SConstruct', """
  import SCons.Defaults
  B = Builder(action=r'%(_python_)s build.py $TARGET $SOURCES')
  env = Environment()
  env['BUILDERS']['B'] = B
  env.B(target = 'sub1/foo.out', source = 'sub1/foo.in')
  Export('env')
  SConscript('sub1/SConscript')
  SConscript('sub2/SConscript')
  """ % locals())
  
  test.write(['sub1', 'SConscript'], """
  Import('env')
  env.B(target = 'foo.out', source = 'foo.in')
  Default('.')
  """)
  
  test.write(['sub1', 'foo.in'], "sub1/foo.in")
  
  test.write(['sub2', 'SConscript'], """
  Import('env')
  env.Alias('bar', env.B(target = 'bar.out', source = 'bar.in'))
  Default('.')
  
  """)
  
  test.write(['sub2', 'bar.in'], "sub2/bar.in")
  
  test.run(arguments = '-D', chdir = 'sub1')
  
  test.must_match(['sub1', 'foo.out'], "sub1/foo.in")
  test.must_match(['sub2', 'bar.out'], "sub2/bar.in")
  
  test.unlink(['sub1', 'foo.out'])
  test.unlink(['sub2', 'bar.out'])
  
  test.run(arguments = '-D bar', chdir = 'sub1')
  
  test.must_not_exist(test.workpath('sub1', 'foo.out'))
  test.must_exist(test.workpath('sub2', 'bar.out'))
  
  
  test.pass_test()
  
  # Local Variables:
  # tab-width:4
  # indent-tabs-mode:nil
  # End:
  # vim: set expandtab tabstop=4 shiftwidth=4:
  