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SCons / test / option / help-options.py

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

"""
Verify behavior of the -H and --help-options options.
"""

import re

import TestSCons

test = TestSCons.TestSCons()

test.write('SConstruct', "")

test.run(arguments = '-H')

expect = [
    '-H, --help-options',
    '--debug=TYPE',
]
test.must_contain_all_lines(test.stdout(), expect)

# Validate that the help output lists the options in case-insensitive
# alphabetical order.

# Don't include in the sorted comparison the options that are ignored
# for compatibility.  They're all printed at the top of the list.
ignored_re = re.compile('.*Ignored for compatibility\\.\n', re.S)
stdout = ignored_re.sub('', test.stdout())

lines = stdout.split('\n')
lines = [x for x in lines if x[:3] == '  -']
lines = [x[3:] for x in lines]
lines = [x[0] == '-' and x[1:] or x for x in lines]
options = [x.split()[0] for x in lines]
options = [x[-1] == ',' and x[:-1] or x for x in options]
lowered = [x.lower() for x in options]
ordered = sorted(lowered)
if lowered != ordered:
    print "lowered =", lowered
    print "sorted =", ordered
    test.fail_test()

test.pass_test()
 

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