#!/usr/bin/python

# Copyright 2004 Vladimir Prus.
# Distributed under the Boost Software License, Version 1.0. (See
# accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)

# Test that we load parent projects before loading children.

import BoostBuild
import string

t = BoostBuild.Tester()

t.write("jamroot.jam", """
use-project /child : child ;
ECHO "Setting parent requirements" ;
project : requirements <define>PASS_THE_TEST ;
alias x : child//main ;
""")

t.write("child/jamfile.jam", """
ECHO "Setting child requirements" ;
project /child ;
exe main : main.cpp ;
""")

t.write("child/main.cpp", """
#if defined(PASS_THE_TEST)
int main() {}
#endif
""")

t.run_build_system()

t.expect_addition("child/bin/$toolset/debug/main.exe")
t.fail_test(string.find(t.stdout(), "Setting child requirements") <
            string.find(t.stdout(), "Setting parent requirements"))


# Regression test: parent requirements were ignored in some cases.
t.rm(".")
t.write("jamroot.jam", """
build-project src ;
""")

t.write("src/jamfile.jam", """
project : requirements <define>EVERYTHING_OK ;
""")

t.write("src/app/jamfile.jam", """
exe test : test.cpp ;
""")

t.write("src/app/test.cpp", """
#ifdef EVERYTHING_OK
int main() {}
#endif
""")

t.run_build_system(subdir="src/app")
t.expect_addition("src/app/bin/$toolset/debug/test.exe")

# child/child2 used to be loaded before child
t.rm(".")
t.write("jamroot.jam", """
use-project /child/child2 : child/child2 ;
rule parent-rule ( )
{
  ECHO "Running parent-rule" ;
}
""")

t.write("child/jamfile.jam", """
""")

t.write("child/child1/jamfile.jam", """
""")

t.write("child/child2/jamfile.jam", """
parent-rule ;
""")


t.run_build_system(subdir="child/child1")
t.expect_output_line("Running parent-rule")

t.cleanup()