#!/usr/bin/env python
#
# MIT License
#
# Copyright The SCons Foundation
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

"""
Test LEX and LEXFLAGS and unistd.h with a live lex in mingw environment.
"""

import sys

import TestSCons
from TestCmd import IS_WINDOWS

_exe = TestSCons._exe
_python_ = TestSCons._python_

test = TestSCons.TestSCons()

if not IS_WINDOWS:
    test.skip_test('Not windows environment; skipping test.\n')

if not test.where_is('gcc'):
    test.skip_test('No mingw or cygwin build environment found; skipping test.\n')

lex = test.where_is('lex') or test.where_is('flex')

if not lex:
    test.skip_test('No lex or flex found; skipping test.\n')

test.file_fixture('wrapper.py')

test.write('SConstruct', """
DefaultEnvironment(tools=[])
foo = Environment(tools=['default', 'mingw', 'lex'], LEXUNISTD="")
lex = foo.Dictionary('LEX')
bar = Environment(
    LEX=r'%(_python_)s wrapper.py ' + lex,
    LEXFLAGS='-b',
    LEXUNISTD="",
    tools=['default', 'mingw', 'lex'],
)
foo.Program(target='foo', source='foo.l')
bar.Program(target='bar', source='bar.l')
""" % locals())

lex = r"""
%%%%
a       printf("A%sA");
b       printf("B%sB");
%%%%
int
yywrap()
{
    return 1;
}

int
main()
{
    yylex();
}
"""

test.write('foo.l', lex % ('foo.l', 'foo.l'))

test.write('bar.l', lex % ('bar.l', 'bar.l'))

test.run(arguments = 'foo' + _exe, stderr = None)

test.must_not_exist(test.workpath('wrapper.out'))
test.must_not_exist(test.workpath('lex.backup'))

test.run(program = test.workpath('foo'), stdin = "a\n", stdout = "Afoo.lA\n")

test.run(arguments = 'bar' + _exe)

test.must_match(test.workpath('wrapper.out'), "wrapper.py\n")
test.must_exist(test.workpath('lex.backup'))

test.run(program = test.workpath('bar'), stdin = "b\n", stdout = "Bbar.lB\n")
test.must_contain(test.workpath('bar.c'), "unistd.h")

test.pass_test()

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