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      1 #!/usr/bin/env python
      2 
      3 # Copyright (c) 2012 Google Inc. All rights reserved.
      4 # Use of this source code is governed by a BSD-style license that can be
      5 # found in the LICENSE file.
      6 
      7 """
      8 Verifies build of an executable with C++ define specified by a gyp define, and
      9 the use of the environment during regeneration when the gyp file changes.
     10 """
     11 
     12 import os
     13 import sys
     14 import TestGyp
     15 
     16 env_stack = []
     17 
     18 
     19 def PushEnv():
     20   env_copy = os.environ.copy()
     21   env_stack.append(env_copy)
     22 
     23 def PopEnv():
     24   os.environ.clear()
     25   os.environ.update(env_stack.pop())
     26 
     27 formats = ['make', 'ninja']
     28 
     29 test = TestGyp.TestGyp(formats=formats)
     30 
     31 try:
     32   PushEnv()
     33   os.environ['CFLAGS'] = ''
     34   os.environ['GYP_CROSSCOMPILE'] = '1'
     35   test.run_gyp('cflags.gyp')
     36   test.build('cflags.gyp')
     37 finally:
     38   # We clear the environ after calling gyp.  When the auto-regeneration happens,
     39   # the same define should be reused anyway.  Reset to empty string first in
     40   # case the platform doesn't support unsetenv.
     41   PopEnv()
     42 
     43 
     44 expect = """FOO not defined\n"""
     45 test.run_built_executable('cflags', stdout=expect)
     46 test.run_built_executable('cflags_host', stdout=expect)
     47 
     48 test.sleep()
     49 
     50 try:
     51   PushEnv()
     52   os.environ['CFLAGS'] = '-DFOO=1'
     53   os.environ['GYP_CROSSCOMPILE'] = '1'
     54   test.run_gyp('cflags.gyp')
     55   test.build('cflags.gyp')
     56 finally:
     57   # We clear the environ after calling gyp.  When the auto-regeneration happens,
     58   # the same define should be reused anyway.  Reset to empty string first in
     59   # case the platform doesn't support unsetenv.
     60   PopEnv()
     61 
     62 
     63 expect = """FOO defined\n"""
     64 test.run_built_executable('cflags', stdout=expect)
     65 
     66 # Environment variables shouldn't influence the flags for the host.
     67 expect = """FOO not defined\n"""
     68 test.run_built_executable('cflags_host', stdout=expect)
     69 
     70 test.sleep()
     71 
     72 try:
     73   PushEnv()
     74   os.environ['CFLAGS'] = ''
     75   test.run_gyp('cflags.gyp')
     76   test.build('cflags.gyp')
     77 finally:
     78   # We clear the environ after calling gyp.  When the auto-regeneration happens,
     79   # the same define should be reused anyway.  Reset to empty string first in
     80   # case the platform doesn't support unsetenv.
     81   PopEnv()
     82 
     83 
     84 expect = """FOO not defined\n"""
     85 test.run_built_executable('cflags', stdout=expect)
     86 
     87 test.sleep()
     88 
     89 try:
     90   PushEnv()
     91   os.environ['CFLAGS'] = '-DFOO=1'
     92   test.run_gyp('cflags.gyp')
     93   test.build('cflags.gyp')
     94 finally:
     95   # We clear the environ after calling gyp.  When the auto-regeneration happens,
     96   # the same define should be reused anyway.  Reset to empty string first in
     97   # case the platform doesn't support unsetenv.
     98   PopEnv()
     99 
    100 
    101 expect = """FOO defined\n"""
    102 test.run_built_executable('cflags', stdout=expect)
    103 
    104 test.pass_test()
    105