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

"""
Test the ESCAPE construction variable.
"""

import TestSCons

_python_ = TestSCons._python_

test = TestSCons.TestSCons()

test.write('cat.py', """\
import sys
with open(sys.argv[1], 'wb') as ofp:
    for s in sys.argv[2:]:
        with open(s, 'rb') as ifp:
            ofp.write(ifp.read())
""")

test.write('SConstruct', """\
# We still need to run this through the original ESCAPE function,
# because that's set up to work in tandem with the existing SHELL,
# which we're not replacing.
orig_escape = Environment()['ESCAPE']
def my_escape(s):
    s = s.replace('file.in', 'file.xxx')
    return orig_escape(s)
env = Environment(ESCAPE = my_escape)
env.Command('file.out', 'file.in', r'%(_python_)s cat.py $TARGET $SOURCES')
""" % locals())

test.write('file.in', "file.in\n")
test.write('file.xxx', "file.xxx\n")

test.run()

test.must_match('file.out', "file.xxx\n")

test.pass_test()

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