#!/usr/bin/env python
from __future__ import division, absolute_import, print_function

from numpy.testing import *
from numpy.distutils.misc_util import appendpath, minrelpath, \
    gpaths, get_shared_lib_extension
from os.path import join, sep, dirname

ajoin = lambda *paths: join(*((sep,)+paths))

class TestAppendpath(TestCase):

    def test_1(self):
        assert_equal(appendpath('prefix','name'),join('prefix','name'))
        assert_equal(appendpath('/prefix','name'),ajoin('prefix','name'))
        assert_equal(appendpath('/prefix','/name'),ajoin('prefix','name'))
        assert_equal(appendpath('prefix','/name'),join('prefix','name'))

    def test_2(self):
        assert_equal(appendpath('prefix/sub','name'),
                     join('prefix','sub','name'))
        assert_equal(appendpath('prefix/sub','sup/name'),
                     join('prefix','sub','sup','name'))
        assert_equal(appendpath('/prefix/sub','/prefix/name'),
                     ajoin('prefix','sub','name'))

    def test_3(self):
        assert_equal(appendpath('/prefix/sub','/prefix/sup/name'),
                     ajoin('prefix','sub','sup','name'))
        assert_equal(appendpath('/prefix/sub/sub2','/prefix/sup/sup2/name'),
                     ajoin('prefix','sub','sub2','sup','sup2','name'))
        assert_equal(appendpath('/prefix/sub/sub2','/prefix/sub/sup/name'),
                     ajoin('prefix','sub','sub2','sup','name'))

class TestMinrelpath(TestCase):

    def test_1(self):
        n = lambda path: path.replace('/',sep)
        assert_equal(minrelpath(n('aa/bb')),n('aa/bb'))
        assert_equal(minrelpath('..'),'..')
        assert_equal(minrelpath(n('aa/..')),'')
        assert_equal(minrelpath(n('aa/../bb')),'bb')
        assert_equal(minrelpath(n('aa/bb/..')),'aa')
        assert_equal(minrelpath(n('aa/bb/../..')),'')
        assert_equal(minrelpath(n('aa/bb/../cc/../dd')),n('aa/dd'))
        assert_equal(minrelpath(n('.././..')),n('../..'))
        assert_equal(minrelpath(n('aa/bb/.././../dd')),n('dd'))

class TestGpaths(TestCase):

    def test_gpaths(self):
        local_path = minrelpath(join(dirname(__file__),'..'))
        ls = gpaths('command/*.py', local_path)
        assert_(join(local_path,'command','build_src.py') in ls,repr(ls))
        f = gpaths('system_info.py', local_path)
        assert_(join(local_path,'system_info.py')==f[0],repr(f))

class TestSharedExtension(TestCase):

    def test_get_shared_lib_extension(self):
        import sys
        ext = get_shared_lib_extension(is_python_ext=False)
        if sys.platform.startswith('linux'):
            assert_equal(ext, '.so')
        elif sys.platform.startswith('gnukfreebsd'):
            assert_equal(ext, '.so')
        elif sys.platform.startswith('darwin'):
            assert_equal(ext, '.dylib')
        elif sys.platform.startswith('win'):
            assert_equal(ext, '.dll')
        # just check for no crash
        assert_(get_shared_lib_extension(is_python_ext=True))

if __name__ == "__main__":
    run_module_suite()