# -*- coding: utf-8 -*-

import sys
import unittest
from picard import (version_to_string,
                    version_from_string,
                    VersionError)


# assertLess is available since 2.7 only
if sys.version_info[:2] == (2, 6):
    def assertLess(self, a, b, msg=None):
        if not a < b:
            self.fail('%s not less than %s' % (repr(a), repr(b)))

    unittest.TestCase.assertLess = assertLess


class VersionsTest(unittest.TestCase):

    def test_version_conv_1(self):
        l, s = (0, 0, 1, 'dev', 1), '0.0.1dev1'
        self.assertEqual(version_to_string(l), s)
        self.assertEqual(l, version_from_string(s))

    def test_version_conv_2(self):
        l, s = (1, 1, 0, 'final', 0), '1.1.0final0'
        self.assertEqual(version_to_string(l), s)
        self.assertEqual(l, version_from_string(s))

    def test_version_conv_3(self):
        l, s = (1, 1, 0, 'dev', 0), '1.1.0dev0'
        self.assertEqual(version_to_string(l), s)
        self.assertEqual(l, version_from_string(s))

    def test_version_conv_4(self):
        l, s = (1, 0, 2, 'final', 0), '1.0.2'
        self.assertEqual(version_to_string(l, short=True), s)
        self.assertEqual(l, version_from_string(s))

    def test_version_conv_5(self):
        l, s = (999, 999, 999, 'dev', 999), '999.999.999dev999'
        self.assertEqual(version_to_string(l), s)
        self.assertEqual(l, version_from_string(s))

    def test_version_conv_6(self):
        l = (1, 0, 2, 'xx', 0)
        self.assertRaises(VersionError, version_to_string, (l))

    def test_version_conv_7(self):
        l, s = (1, 1, 0, 'final', 0), '1.1'
        self.assertEqual(version_to_string(l, short=True), s)

    def test_version_conv_8(self):
        l, s = (1, 1, 1, 'final', 0), '1.1.1'
        self.assertEqual(version_to_string(l, short=True), s)

    def test_version_conv_9(self):
        l, s = (1, 1, 0, 'final', 1), '1.1'
        self.assertEqual(version_to_string(l, short=True), s)

    def test_version_conv_10(self):
        l, s = (1, 1, 0, 'dev', 0), '1.1.0dev0'
        self.assertEqual(version_to_string(l, short=True), s)

    def test_version_conv_11(self):
        l, s = ('1', '1', '0', 'dev', '0'), '1.1.0dev0'
        self.assertEqual(version_to_string(l), s)

    def test_version_conv_12(self):
        l, s = (1, 1, 0, 'dev', 0), '1_1_0_dev_0'
        self.assertEqual(l, version_from_string(s))

    def test_version_conv_13(self):
        l, s = (1, 1, 0, 'dev', 0), 'anything_28_1_1_0_dev_0'
        self.assertEqual(l, version_from_string(s))

    def test_version_conv_14(self):
        l = 'anything_28x_1_0_dev_0'
        self.assertRaises(VersionError, version_to_string, (l))

    def test_version_conv_15(self):
        l, s = (1, 1, 0, 'final', 0), 'anything_28_1_1_0'
        self.assertEqual(l, version_from_string(s))

    def test_version_conv_16(self):
        self.assertRaises(VersionError, version_from_string, '1.1.0dev')

    def test_version_conv_17(self):
        self.assertRaises(VersionError, version_from_string, '1.1.0devx')

    def test_version_conv_18(self):
        l, s = (1, 1, 0, 'final', 0), '1.1'
        self.assertEqual(version_to_string(l, short=True), s)
        self.assertEqual(l, version_from_string(s))

    def test_version_conv_19(self):
        self.assertRaises(VersionError, version_from_string, '123')

    def test_version_conv_20(self):
        self.assertRaises(VersionError, version_from_string, '123.')

    def test_api_versions_1(self):
        "Check api versions format and order (from oldest to newest)"
        from picard import api_versions

        len_api_versions = len(api_versions)
        if len_api_versions > 1:
            for i in xrange(len_api_versions - 1):
                a = version_from_string(api_versions[i])
                b = version_from_string(api_versions[i+1])
                self.assertLess(a, b)
        elif len_api_versions == 1:
            a = version_from_string(api_versions[0])
