Lib/distutils/tests/test_ccompiler.py

   1 """Tests for distutils.ccompiler."""
   2 import os
   3 import unittest
   4 from test.test_support import captured_stdout
   5
   6 from distutils.ccompiler import (gen_lib_options, CCompiler,
   7                                  get_default_compiler, customize_compiler)
   8 from distutils import debug
   9 from distutils.tests import support
  10
  11 class FakeCompiler(object):
  12     def library_dir_option(self, dir):
  13         return "-L" + dir
  14
  15     def runtime_library_dir_option(self, dir):
  16         return ["-cool", "-R" + dir]
  17
  18     def find_library_file(self, dirs, lib, debug=0):
  19         return 'found'
  20
  21     def library_option(self, lib):
  22         return "-l" + lib
  23
  24 class CCompilerTestCase(support.EnvironGuard, unittest.TestCase):
  25
  26     def test_gen_lib_options(self):
  27         compiler = FakeCompiler()
  28         libdirs = ['lib1', 'lib2']
  29         runlibdirs = ['runlib1']
  30         libs = [os.path.join('dir', 'name'), 'name2']
  31
  32         opts = gen_lib_options(compiler, libdirs, runlibdirs, libs)
  33         wanted = ['-Llib1', '-Llib2', '-cool', '-Rrunlib1', 'found',
  34                   '-lname2']
  35         self.assertEqual(opts, wanted)
  36
  37     def test_debug_print(self):
  38
  39         class MyCCompiler(CCompiler):
  40             executables = {}
  41
  42         compiler = MyCCompiler()
  43         with captured_stdout() as stdout:
  44             compiler.debug_print('xxx')
  45         stdout.seek(0)
  46         self.assertEqual(stdout.read(), '')
  47
  48         debug.DEBUG = True
  49         try:
  50             with captured_stdout() as stdout:
  51                 compiler.debug_print('xxx')
  52             stdout.seek(0)
  53             self.assertEqual(stdout.read(), 'xxx\n')
  54         finally:
  55             debug.DEBUG = False
  56
  57     def test_customize_compiler(self):
  58
  59         # not testing if default compiler is not unix
  60         if get_default_compiler() != 'unix':
  61             return
  62
  63         os.environ['AR'] = 'my_ar'
  64         os.environ['ARFLAGS'] = '-arflags'
  65
  66         # make sure AR gets caught
  67         class compiler:
  68             compiler_type = 'unix'
  69
  70             def set_executables(self, **kw):
  71                 self.exes = kw
  72
  73         comp = compiler()
  74         customize_compiler(comp)
  75         self.assertEqual(comp.exes['archiver'], 'my_ar -arflags')
  76
  77 def test_suite():
  78     return unittest.makeSuite(CCompilerTestCase)
  79
  80 if __name__ == "__main__":
  81     unittest.main(defaultTest="test_suite")