#!/usr/bin/env python
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"""
Verify that we can call get_csig() from a function action without
causing problems.  (This messed up a lot of internal state before
the Big Signature Refactoring.)

Test case courtesy of Damyan Pepper.
"""

import TestSCons

test = TestSCons.TestSCons()

args = "--debug=explain"

test.write('SConstruct', """\
env = Environment()

def action( source, target, env ):
    target[0].get_csig()
    f = open( str(target[0]), 'wb' )
    for s in source:
        f.write( s.get_contents() )
    f.close()

builder = env.Builder( action=action )

builder( env, target = "target.txt", source = "source.txt" )
""")

test.write("source.txt", "source.txt 1\n")

test.run(arguments=args)



test.write("source.txt", "source.txt 2")



expect_rebuild = test.wrap_stdout("""\
scons: rebuilding `target.txt' because `source.txt' changed
action(["target.txt"], ["source.txt"])
""")

test.not_up_to_date(arguments=args)



test.pass_test()

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