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

"""
Verify that Configure contexts work with basic use of VariantDir.
"""

import os

import TestSCons

_obj = TestSCons._obj

test = TestSCons.TestSCons(match = TestSCons.match_re_dotall)

NCR = test.NCR  # non-cached rebuild
CR  = test.CR   # cached rebuild (up to date)
NCF = test.NCF  # non-cached build failure
CF  = test.CF   # cached build failure

test.write('SConstruct', """\
env = Environment(LOGFILE='build/config.log')
import os
env.AppendENVPath('PATH', os.environ['PATH'])
VariantDir( 'build', '.' )
conf = env.Configure(conf_dir='build/config.tests', log_file='$LOGFILE')
r1 = conf.CheckCHeader( 'math.h' )
r2 = conf.CheckCHeader( 'no_std_c_header.h' ) # leads to compile error
env = conf.Finish()
Export( 'env' )
# print open( 'build/config.log' ).readlines()
SConscript( 'build/SConscript' )
""")

test.write('SConscript', """\
Import( 'env' )
env.Program( 'TestProgram', 'TestProgram.c' )
""")

test.write('TestProgram.c', """\
#include <stdio.h>

int main() {
  printf( "Hello\\n" );
}
""")

test.run()
test.checkLogAndStdout(["Checking for C header file math.h... ",
                       "Checking for C header file no_std_c_header.h... "],
                      ["yes", "no"],
                      [[((".c", NCR), (_obj, NCR))],
                       [((".c", NCR), (_obj, NCF))]],
                      os.path.join("build", "config.log"),
                      os.path.join("build", "config.tests"),
                      "SConstruct")
    
test.run()
test.checkLogAndStdout(["Checking for C header file math.h... ",
                       "Checking for C header file no_std_c_header.h... "],
                      ["yes", "no"],
                      [[((".c", CR), (_obj, CR))],
                       [((".c", CR), (_obj, CF))]],
                      os.path.join("build", "config.log"),
                      os.path.join("build", "config.tests"),
                      "SConstruct")

test.pass_test()

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