#!/usr/bin/env python
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from __future__ import print_function

__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"

"""
Test that the --debug=count option works.
"""

import re
import sys

import TestSCons

test = TestSCons.TestSCons()

try:
    import weakref
except ImportError:
    x = "Python version has no 'weakref' module; skipping tests.\n"
    test.skip_test(x)



test.write('SConstruct', """
DefaultEnvironment(tools=[])
def cat(target, source, env):
    with open(str(target[0]), 'wb') as f, open(str(source[0]), 'rb') as infp:
        f.write(infp.read())
env = Environment(BUILDERS={'Cat':Builder(action=Action(cat))})
env.Cat('file.out', 'file.in')
""")

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

# Just check that object counts for some representative classes
# show up in the output.

def find_object_count(s, stdout):
    re_string = r'\d+ +\d+   %s' % re.escape(s)
    return re.search(re_string, stdout)

objects = [
    'Action.CommandAction',
    'Builder.BuilderBase',
    'Environment.Base',
    'Executor.Executor',
    'Node.FS',
    'Node.FS.Base',
    'Node.Node',
]

for args in ['-h --debug=count', '--debug=count']:
    test.run(arguments = args)
    stdout = test.stdout()

    missing = [o for o in objects if find_object_count(o, stdout) is None]

    if missing:
        print("Missing the following object lines from '%s' output:" % args)
        print("\t", ' '.join(missing))
        print("STDOUT ==========")
        print(stdout)
        test.fail_test(1)

expect_warning = """
scons: warning: --debug=count is not supported when running SCons
\twith the python -O option or optimized \\(.pyo\\) modules.
""" + TestSCons.file_expr

test.run(
    arguments = '--debug=count -h',
    # Test against current interpreter vs default path option.
    interpreter = [ sys.executable, '-O' ],
    stderr = expect_warning,
    match = TestSCons.match_re
)

test.pass_test()

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