#!/usr/bin/env python
#
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# permit persons to whom the Software is furnished to do so, subject to
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"

"""
Verify that specifying a source file more than once works correctly
and dos not cause a rebuild.
"""

import TestSCons

test = TestSCons.TestSCons()

test.write('SConstruct', """\
def cat(target, source, env):
    with open(str(target[0]), 'wb') as t:
        for s in source:
            with open(str(s), 'rb') as s:
                t.write(s.read())
env = Environment(BUILDERS = {'Cat' : Builder(action = cat)})
env.Cat('out.txt', ['f1.in', 'f2.in', 'f1.in'])
""")

test.write('f1.in', "f1.in\n")
test.write('f2.in', "f2.in\n")

test.run(arguments='--debug=explain .')

test.must_match('out.txt', "f1.in\nf2.in\nf1.in\n")

test.up_to_date(options='--debug=explain', arguments='.')

test.pass_test()

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