#!/usr/bin/env python
#
# MIT License
#
# Copyright The SCons Foundation
#
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# permit persons to whom the Software is furnished to do so, subject to
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# The above copyright notice and this permission notice shall be included
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"""
Test deprecation warning if must_exist flag is used in an SConscript() call
"""

import os
import TestSCons

test = TestSCons.TestSCons()

# catch the exception if is raised, send it on as a warning
# this gives us traceability of the line responsible
SConstruct_path = test.workpath('SConstruct')
test.file_fixture("fixture/SConstruct")

# we should see two warnings, the second being the deprecation message.
# need to build the path in the expected msg in an OS-agnostic way
missing = os.path.normpath('missing/SConscript')
warnmsg = """
scons: warning: Calling missing SConscript without error is deprecated.
Transition by adding must_exist=False to SConscript calls.
Missing SConscript '{}'
""".format(missing) + test.python_file_line(SConstruct_path, 18)

expect_stderr = warnmsg
test.run(arguments=".", stderr=expect_stderr)
test.pass_test()

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