SCons / test / AddOption / help.py

#!/usr/bin/env python
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"

"""
Verify the help text when the AddOption() function is used (and when
it's not).
"""

import TestSCons

test = TestSCons.TestSCons()

test.write('SConstruct', """\
env = Environment()
AddOption('--force',
          action="store_true",
          help='force installation (overwrite existing files)')
AddOption('--prefix',
          nargs=1,
          dest='prefix',
          action='store',
          type='string',
          metavar='DIR',
          help='installation prefix')
""")

expected_lines = [
    'Local Options:',
    '  --force                     force installation (overwrite existing files)',
    '  --prefix=DIR                installation prefix',
]

test.run(arguments = '-h')
lines = test.stdout().split('\n')
missing = [e for e in expected_lines if e not in lines]

if missing:
    print "====== STDOUT:"
    print test.stdout()
    print "====== Missing the following lines in the above AddOption() help output:"
    print "\n".join(missing)
    test.fail_test()

test.unlink('SConstruct')

test.run(arguments = '-h')
lines = test.stdout().split('\n')
unexpected = [e for e in expected_lines if e in lines]

if unexpected:
    print "====== STDOUT:"
    print test.stdout()
    print "====== Unexpected lines in the above non-AddOption() help output:"
    print "\n".join(unexpected)
    test.fail_test()

test.pass_test()

# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4:
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