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"""
Unit tests for the stem.version.Version parsing and class.
"""
import unittest
import stem.util.system
import stem.version
from stem.version import Version
try:
# added in python 3.3
from unittest.mock import patch
except ImportError:
from mock import patch
TOR_VERSION_OUTPUT = """Mar 22 23:09:37.088 [notice] Tor v0.2.2.35 \
(git-73ff13ab3cc9570d). This is experimental software. Do not rely on it for \
strong anonymity. (Running on Linux i686)
Tor version 0.2.2.35 (git-73ff13ab3cc9570d)."""
class TestVersion(unittest.TestCase):
@patch('stem.util.system.call')
@patch.dict(stem.version.VERSION_CACHE)
def test_get_system_tor_version(self, call_mock):
call_mock.return_value = TOR_VERSION_OUTPUT.splitlines()
version = stem.version.get_system_tor_version()
self.assert_versions_match(version, 0, 2, 2, 35, None, 'git-73ff13ab3cc9570d')
self.assertEqual('73ff13ab3cc9570d', version.git_commit)
call_mock.assert_called_once_with('tor --version')
self.assertEqual({'tor': version}, stem.version.VERSION_CACHE)
def test_parsing(self):
"""
Tests parsing by the Version class constructor.
"""
# valid versions with various number of compontents to the version
version = Version('0.1.2.3-tag')
self.assert_versions_match(version, 0, 1, 2, 3, 'tag', None)
version = Version('0.1.2.3')
self.assert_versions_match(version, 0, 1, 2, 3, None, None)
version = Version('0.1.2-tag')
self.assert_versions_match(version, 0, 1, 2, None, 'tag', None)
version = Version('0.1.2')
self.assert_versions_match(version, 0, 1, 2, None, None, None)
# checks an empty tag
version = Version('0.1.2.3-')
self.assert_versions_match(version, 0, 1, 2, 3, '', None)
version = Version('0.1.2-')
self.assert_versions_match(version, 0, 1, 2, None, '', None)
# check with extra informaton
version = Version('0.1.2.3-tag (git-73ff13ab3cc9570d)')
self.assert_versions_match(version, 0, 1, 2, 3, 'tag', 'git-73ff13ab3cc9570d')
self.assertEqual('73ff13ab3cc9570d', version.git_commit)
version = Version('0.1.2.3-tag ()')
self.assert_versions_match(version, 0, 1, 2, 3, 'tag', '')
version = Version('0.1.2 (git-73ff13ab3cc9570d)')
self.assert_versions_match(version, 0, 1, 2, None, None, 'git-73ff13ab3cc9570d')
# checks invalid version strings
self.assertRaises(ValueError, stem.version.Version, '')
self.assertRaises(ValueError, stem.version.Version, '1.2.3.4nodash')
self.assertRaises(ValueError, stem.version.Version, '1.2.3.a')
self.assertRaises(ValueError, stem.version.Version, '1.2.a.4')
self.assertRaises(ValueError, stem.version.Version, '1x2x3x4')
self.assertRaises(ValueError, stem.version.Version, '12.3')
self.assertRaises(ValueError, stem.version.Version, '1.-2.3')
def test_comparison(self):
"""
Tests comparision between Version instances.
"""
# check for basic incrementing in each portion
self.assert_version_is_greater('1.1.2.3-tag', '0.1.2.3-tag')
self.assert_version_is_greater('0.2.2.3-tag', '0.1.2.3-tag')
self.assert_version_is_greater('0.1.3.3-tag', '0.1.2.3-tag')
self.assert_version_is_greater('0.1.2.4-tag', '0.1.2.3-tag')
self.assert_version_is_greater('0.1.2.3-ugg', '0.1.2.3-tag')
self.assert_version_is_equal('0.1.2.3-tag', '0.1.2.3-tag')
# check with common tags
self.assert_version_is_greater('0.1.2.3-beta', '0.1.2.3-alpha')
self.assert_version_is_greater('0.1.2.3-rc', '0.1.2.3-beta')
# checks that a missing patch level equals zero
self.assert_version_is_equal('0.1.2', '0.1.2.0')
self.assert_version_is_equal('0.1.2-tag', '0.1.2.0-tag')
# checks for missing patch or status
self.assert_version_is_greater('0.1.2.3-tag', '0.1.2.3')
self.assert_version_is_greater('0.1.2.3-tag', '0.1.2-tag')
self.assert_version_is_greater('0.1.2.3-tag', '0.1.2')
self.assert_version_is_equal('0.1.2.3', '0.1.2.3')
self.assert_version_is_equal('0.1.2', '0.1.2')
def test_nonversion_comparison(self):
"""
Checks that we can be compared with other types.
In python 3 on only equality comparisons work, greater than and less than
comparisons result in a TypeError.
"""
test_version = Version('0.1.2.3')
self.assertNotEqual(test_version, None)
self.assertNotEqual(test_version, 5)
def test_string(self):
"""
Tests the Version -> string conversion.
"""
# checks conversion with various numbers of arguments
self.assert_string_matches('0.1.2.3-tag')
self.assert_string_matches('0.1.2.3')
self.assert_string_matches('0.1.2')
def test_requirements_greater_than(self):
"""
Checks a VersionRequirements with a single greater_than rule.
"""
requirements = stem.version._VersionRequirements()
requirements.greater_than(Version('0.2.2.36'))
self.assertTrue(Version('0.2.2.36') >= requirements)
self.assertTrue(Version('0.2.2.37') >= requirements)
self.assertTrue(Version('0.2.3.36') >= requirements)
self.assertFalse(Version('0.2.2.35') >= requirements)
self.assertFalse(Version('0.2.1.38') >= requirements)
requirements = stem.version._VersionRequirements()
requirements.greater_than(Version('0.2.2.36'), False)
self.assertFalse(Version('0.2.2.35') >= requirements)
self.assertFalse(Version('0.2.2.36') >= requirements)
self.assertTrue(Version('0.2.2.37') >= requirements)
def test_requirements_less_than(self):
"""
Checks a VersionRequirements with a single less_than rule.
"""
requirements = stem.version._VersionRequirements()
requirements.less_than(Version('0.2.2.36'))
self.assertTrue(Version('0.2.2.36') >= requirements)
self.assertTrue(Version('0.2.2.35') >= requirements)
self.assertTrue(Version('0.2.1.38') >= requirements)
self.assertFalse(Version('0.2.2.37') >= requirements)
self.assertFalse(Version('0.2.3.36') >= requirements)
requirements = stem.version._VersionRequirements()
requirements.less_than(Version('0.2.2.36'), False)
self.assertFalse(Version('0.2.2.37') >= requirements)
self.assertFalse(Version('0.2.2.36') >= requirements)
self.assertTrue(Version('0.2.2.35') >= requirements)
def test_requirements_in_range(self):
"""
Checks a VersionRequirements with a single in_range rule.
"""
requirements = stem.version._VersionRequirements()
requirements.in_range(Version('0.2.2.36'), Version('0.2.2.38'))
self.assertFalse(Version('0.2.2.35') >= requirements)
self.assertTrue(Version('0.2.2.36') >= requirements)
self.assertTrue(Version('0.2.2.37') >= requirements)
self.assertFalse(Version('0.2.2.38') >= requirements)
# rule for 'anything in the 0.2.2.x series'
requirements = stem.version._VersionRequirements()
requirements.in_range(Version('0.2.2.0'), Version('0.2.3.0'))
for index in xrange(0, 100):
self.assertTrue(Version('0.2.2.%i' % index) >= requirements)
def test_requirements_multiple_rules(self):
"""
Checks a VersionRequirements is the logical 'or' when it has multiple rules.
"""
# rule to say 'anything but the 0.2.2.x series'
requirements = stem.version._VersionRequirements()
requirements.greater_than(Version('0.2.3.0'))
requirements.less_than(Version('0.2.2.0'), False)
self.assertTrue(Version('0.2.3.0') >= requirements)
self.assertFalse(Version('0.2.2.0') >= requirements)
for index in xrange(0, 100):
self.assertFalse(Version('0.2.2.%i' % index) >= requirements)
def assert_versions_match(self, version, major, minor, micro, patch, status, extra):
"""
Asserts that the values for a types.Version instance match the given
values.
"""
self.assertEqual(major, version.major)
self.assertEqual(minor, version.minor)
self.assertEqual(micro, version.micro)
self.assertEqual(patch, version.patch)
self.assertEqual(status, version.status)
self.assertEqual(extra, version.extra)
if extra is None:
self.assertEqual(None, version.git_commit)
def assert_version_is_greater(self, first_version, second_version):
"""
Asserts that the parsed version of the first version is greate than the
second (also checking the inverse).
"""
version1 = Version(first_version)
version2 = Version(second_version)
self.assertEqual(version1 > version2, True)
self.assertEqual(version1 < version2, False)
def assert_version_is_equal(self, first_version, second_version):
"""
Asserts that the parsed version of the first version equals the second.
"""
version1 = Version(first_version)
version2 = Version(second_version)
self.assertEqual(version1, version2)
def assert_string_matches(self, version):
"""
Parses the given version string then checks that its string representation
matches the input.
"""
self.assertEqual(version, str(Version(version)))
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