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

"""
Test that the --debug=includes option prints the implicit
dependencies of a target.
"""

import TestSCons
import sys
import string
import re
import time

test = TestSCons.TestSCons()

test.write('SConstruct', """
env = Environment(OBJSUFFIX = '.ooo', PROGSUFFIX = '.xxx')
env.Program('foo', Split('foo.c bar.c'))
""")

test.write('foo.c', r"""
#include "foo.h"
int main(int argc, char *argv[])
{
        argv[argc++] = "--";
        printf("f1.c\n");
        exit (0);
}
""")

test.write('bar.c', """
#include "bar.h"
""")

test.write('foo.h', """
#ifndef FOO_H
#define FOO_H
#include "bar.h"
#endif
""")

test.write('bar.h', """
#ifndef BAR_H
#define BAR_H
#include "foo.h"
#endif
""")

includes = """
+-foo.c
  +-foo.h
    +-bar.h
"""
test.run(arguments = "--debug=includes foo.ooo")
test.fail_test(string.find(test.stdout(), includes) == -1)

# In an ideal world, --debug=includes would also work when there's a build
# failure, but this would require even more complicated logic to scan
# all of the intermediate nodes that get skipped when the build failure
# occurs.  On the YAGNI theory, we're just not going to worry about this
# until it becomes an issue that someone actually cares enough about.

#test.write('bar.h', """
##ifndef BAR_H
##define BAR_H
##include "foo.h"
##endif
#THIS SHOULD CAUSE A BUILD FAILURE
#""")

#test.run(arguments = "--debug=includes foo.xxx",
#         status = 2,
#         stderr = None)
#test.fail_test(string.find(test.stdout(), includes) == -1)

# These shouldn't print out anything in particular, but
# they shouldn't crash either:
test.run(arguments = "--debug=includes .")
test.run(arguments = "--debug=includes foo.c")

test.pass_test()