#!/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 string

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 = string.split(test.stdout(), '\n')
missing = filter(lambda e, l=lines: not e in l, expected_lines)

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

test.unlink('SConstruct')

test.run(arguments = '-h')
lines = string.split(test.stdout(), '\n')
unexpected = filter(lambda e, l=lines: e in l, expected_lines)

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

test.pass_test()