test/HeaderGen.py

   1 #!/usr/bin/env python
   2 #
   3 # __COPYRIGHT__
   4 #
   5 # Permission is hereby granted, free of charge, to any person obtaining
   6 # a copy of this software and associated documentation files (the
   7 # "Software"), to deal in the Software without restriction, including
   8 # without limitation the rights to use, copy, modify, merge, publish,
   9 # distribute, sublicense, and/or sell copies of the Software, and to
  10 # permit persons to whom the Software is furnished to do so, subject to
  11 # the following conditions:
  12 #
  13 # The above copyright notice and this permission notice shall be included
  14 # in all copies or substantial portions of the Software.
  15 #
  16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  17 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  18 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  20 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23 #
  24
  25 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
  26
  27 """
  28 Test that dependencies in generated header files get re-scanned correctly
  29 and that generated header files don't cause circular dependencies.
  30 """
  31
  32 import TestSCons
  33
  34 test = TestSCons.TestSCons()
  35
  36 test.write('SConstruct', """\
  37 def writeFile(target, contents):
  38     with open(str(target[0]), 'w') as f:
  39         f.write(contents)
  40     return 0
  41
  42 env = Environment()
  43 libgen = env.StaticLibrary('gen', 'gen.cpp')
  44 Default(libgen)
  45 env.Command('gen2.h', [],
  46             lambda env,target,source: writeFile(target, 'int foo = 3;\\n'))
  47 env.Command('gen.h', [],
  48             lambda env,target,source: writeFile(target, '#include "gen2.h"\\n'))
  49 env.Command('gen.cpp', [],
  50             lambda env,target,source: writeFile(target, '#include "gen.h"\\n'))
  51 """)
  52
  53 test.run(stderr=TestSCons.noisy_ar,
  54          match=TestSCons.match_re_dotall)
  55
  56 test.up_to_date(arguments = '.')
  57
  58 test.write('SConstruct', """\
  59 env = Environment()
  60
  61 def gen_a_h(target, source, env):
  62     with open(str(target[0]), 'w') as t, open(str(source[0]), 'r') as s:
  63         s.readline()
  64         t.write(s.readline()[:-1] + ';\\n')
  65
  66 MakeHeader = Builder(action = gen_a_h)
  67 env_no_scan = env.Clone(SCANNERS=[], BUILDERS={'MakeHeader' : MakeHeader})
  68 env_no_scan.MakeHeader('a.h', 'a.c')
  69
  70 env.StaticObject('a.c')
  71 """)
  72
  73 test.write('a.c', """\
  74 #include "a.h"
  75 void a(void)
  76 {
  77         ;
  78 }
  79 """)
  80
  81 test.run()
  82
  83 test.pass_test()
  84
  85 # Local Variables:
  86 # tab-width:4
  87 # indent-tabs-mode:nil
  88 # End:
  89 # vim: set expandtab tabstop=4 shiftwidth=4: