import os
import unittest
import warnings
from tempfile import NamedTemporaryFile, mktemp

from gentoolkit import helpers


class TestChangeLog(unittest.TestCase):

	def setUp(self):
		pass

	def tearDown(self):
		pass

#  Commented out for being useless
#          def test_split_changelog(self):
#                  changelog = """
#  *portage-2.1.6.2 (20 Dec 2008)

#    20 Dec 2008; Zac Medico <zmedico@gentoo.org> +portage-2.1.6.2.ebuild:
#    2.1.6.2 bump. This fixes bug #251591 (repoman inherit.autotools false
#    positives) and bug #251616 (performance issue in build log search regex
#    makes emerge appear to hang). Bug #216231 tracks all bugs fixed since
#    2.1.4.x.

#    20 Dec 2008; Zac Medico <zmedico@gentoo.org> -portage-2.1.6.ebuild,
#    -portage-2.1.6.1.ebuild, -portage-2.2_rc17.ebuild:
#    Remove old versions.


#  *portage-2.1.6.1 (12 Dec 2008)

#    12 Dec 2008; Zac Medico <zmedico@gentoo.org> +portage-2.1.6.1.ebuild:
#    2.1.6.1 bump. This fixes bug #250148 (emerge hangs with selinux if ebuild
#    spawns a daemon), bug #250166 (trigger download when generating manifest
#    if file size differs from existing entry), and bug #250212 (new repoman
#    upstream.workaround category for emake -j1 warnings). Bug #216231 tracks
#    all bugs fixed since 2.1.4.x.


#  *portage-2.1.6 (07 Dec 2008)

#    07 Dec 2008; Zac Medico <zmedico@gentoo.org> +portage-2.1.6.ebuild:
#    2.1.6 final release. This fixes bug #249586. Bug #216231 tracks all bugs
#    fixed since 2.1.4.x.

#    07 Dec 2008; Zac Medico <zmedico@gentoo.org> -portage-2.1.6_rc1.ebuild,
#    -portage-2.1.6_rc2.ebuild, -portage-2.1.6_rc3.ebuild,
#    -portage-2.2_rc16.ebuild:
#    Remove old versions.
#                  """

class TestFileOwner(unittest.TestCase):

	def setUp(self):
		pass

	def tearDown(self):
		pass

	def test_expand_abspaths(self):
		expand_abspaths = helpers.FileOwner.expand_abspaths

		initial_file_list = ['foo0', '/foo1', '~/foo2', './foo3']
		# This function should only effect foo3, and not ordering:

		final_file_list = [
			'foo0',
			'/foo1',
			'~/foo2',
			os.path.join(os.getcwd(), os.path.normpath(initial_file_list[3]))
		]

		self.assertEqual(expand_abspaths(initial_file_list), final_file_list)

	def test_extend_realpaths(self):
		extend_realpaths = helpers.FileOwner.extend_realpaths

		# Test that symlinks's realpaths are extended
		f1 = NamedTemporaryFile(prefix='equeryunittest')
		f2 = NamedTemporaryFile(prefix='equeryunittest')
		f3 = NamedTemporaryFile(prefix='equeryunittest')
		with warnings.catch_warnings():
			warnings.simplefilter("ignore")
			sym1 = mktemp()
			os.symlink(f1.name, sym1)
			sym2 = mktemp()
			os.symlink(f3.name, sym2)
		# We've created 3 files and 2 symlinks for testing. We're going to pass
		# in only the first two files and both symlinks. sym1 points to f1.
		# Since f1 is already in the list, sym1's realpath should not be added.
		# sym2 points to f3, but f3's not in our list, so sym2's realpath
		# should be added to the list.
		p = [f1.name, f2.name, sym1, sym2]
		p_xr = extend_realpaths(p)

		self.assertEqual(p_xr[0], f1.name)
		self.assertEqual(p_xr[1], f2.name)
		self.assertEqual(p_xr[2], sym1)
		self.assertEqual(p_xr[3], sym2)
		self.assertEqual(p_xr[4], f3.name)

		# Clean up
		os.unlink(sym1)
		os.unlink(sym2)

		# Make sure we raise an exception if we don't get acceptable input
		self.assertRaises(AttributeError, extend_realpaths, 'str')
		self.assertRaises(AttributeError, extend_realpaths, set())


def test_main():
	suite = unittest.TestLoader()
	suite.loadTestsFromTestCase(TestChangeLog)
	suite.loadTestsFromTestCase(TestFileOwner)
	unittest.TextTestRunner(verbosity=2).run(suite)
test_main.__test__ = False


if __name__ == '__main__':
	test_main()