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test_version.py
# Copyright (c) Twisted Matrix Laboratories. # See LICENSE for details. """ Tests for L{incremental}. """ from __future__ import division, absolute_import import sys import operator import unittest from tempfile import mkdtemp from io import BytesIO from incremental import getVersionString, IncomparableVersions from incremental import Version, _inf from twisted.python.filepath import FilePath from twisted.trial.unittest import TestCase VERSION_4_ENTRIES = b"""\ <?xml version="1.0" encoding="utf-8"?> <wc-entries xmlns="svn:"> <entry committed-rev="18210" name="" committed-date="2006-09-21T04:43:09.542953Z" url="svn+ssh://svn.twistedmatrix.com/svn/Twisted/trunk/twisted" last-author="exarkun" kind="dir" uuid="bbbe8e31-12d6-0310-92fd-ac37d47ddeeb" repos="svn+ssh://svn.twistedmatrix.com/svn/Twisted" revision="18211"/> </wc-entries> """ VERSION_8_ENTRIES = b"""\ 8 dir 22715 svn+ssh://svn.twistedmatrix.com/svn/Twisted/trunk """ VERSION_9_ENTRIES = b"""\ 9 dir 22715 svn+ssh://svn.twistedmatrix.com/svn/Twisted/trunk """ VERSION_10_ENTRIES = b"""\ 10 dir 22715 svn+ssh://svn.twistedmatrix.com/svn/Twisted/trunk """ class VersionsTests(TestCase): def test_localIsShort(self): """ The local version is the same as the short version. """ va = Version("dummy", 1, 0, 0, release_candidate=1, dev=3) self.assertEqual(va.local(), va.short()) def test_versionComparison(self): """ Versions can be compared for equality and order. """ va = Version("dummy", 1, 0, 0) vb = Version("dummy", 0, 1, 0) self.assertTrue(va > vb) self.assertTrue(vb < va) self.assertTrue(va >= vb) self.assertTrue(vb <= va) self.assertTrue(va != vb) self.assertTrue(vb == Version("dummy", 0, 1, 0)) self.assertTrue(vb == vb) def test_versionComparisonCaseInsensitive(self): """ Version package names are case insensitive. """ va = Version("dummy", 1, 0, 0) vb = Version("DuMmY", 0, 1, 0) self.assertTrue(va > vb) self.assertTrue(vb < va) self.assertTrue(va >= vb) self.assertTrue(vb <= va) self.assertTrue(va != vb) self.assertTrue(vb == Version("dummy", 0, 1, 0)) self.assertTrue(vb == vb) def test_comparingNEXTReleases(self): """ NEXT releases are always larger than numbered releases. """ va = Version("whatever", "NEXT", 0, 0) vb = Version("whatever", 1, 0, 0) self.assertTrue(va > vb) self.assertFalse(va < vb) self.assertNotEquals(vb, va) def test_NEXTMustBeAlone(self): """ NEXT releases must always have the rest of the numbers set to 0. """ with self.assertRaises(ValueError): Version("whatever", "NEXT", 1, 0, release_candidate=0, dev=0) with self.assertRaises(ValueError): Version("whatever", "NEXT", 0, 1, release_candidate=0, dev=0) with self.assertRaises(ValueError): Version("whatever", "NEXT", 0, 0, release_candidate=1, dev=0) with self.assertRaises(ValueError): Version("whatever", "NEXT", 0, 0, release_candidate=0, dev=1) def test_comparingNEXTReleasesEqual(self): """ NEXT releases are equal to each other. """ va = Version("whatever", "NEXT", 0, 0) vb = Version("whatever", "NEXT", 0, 0) self.assertEquals(vb, va) def test_comparingPrereleasesWithReleases(self): """ Prereleases are always less than versions without prereleases. """ va = Version("whatever", 1, 0, 0, prerelease=1) vb = Version("whatever", 1, 0, 0) self.assertTrue(va < vb) self.assertFalse(va > vb) self.assertNotEquals(vb, va) def test_prereleaseDeprecated(self): """ Passing 'prerelease' to Version is deprecated. """ Version("whatever", 1, 0, 0, prerelease=1) warnings = self.flushWarnings() self.assertEqual(len(warnings), 1) self.assertEqual( warnings[0]['message'], ("Passing prerelease to incremental.Version was deprecated in " "Incremental 16.9.0. Please pass release_candidate instead.")) def test_prereleaseAttributeDeprecated(self): """ Accessing 'prerelease' on a Version is deprecated. """ va = Version("whatever", 1, 0, 0, release_candidate=1) va.prerelease warnings = self.flushWarnings() self.assertEqual(len(warnings), 1) self.assertEqual( warnings[0]['message'], ("Accessing incremental.Version.prerelease was deprecated in " "Incremental 16.9.0. Use Version.release_candidate instead.")) def test_comparingReleaseCandidatesWithReleases(self): """ Release Candidates are always less than versions without release candidates. """ va = Version("whatever", 1, 0, 0, release_candidate=1) vb = Version("whatever", 1, 0, 0) self.assertTrue(va < vb) self.assertFalse(va > vb) self.assertNotEquals(vb, va) def test_comparingDevReleasesWithReleases(self): """ Dev releases are always less than versions without dev releases. """ va = Version("whatever", 1, 0, 0, dev=1) vb = Version("whatever", 1, 0, 0) self.assertTrue(va < vb) self.assertFalse(va > vb) self.assertNotEquals(vb, va) def test_rcEqualspre(self): """ Release Candidates are equal to prereleases. """ va = Version("whatever", 1, 0, 0, release_candidate=1) vb = Version("whatever", 1, 0, 0, prerelease=1) self.assertTrue(va == vb) self.assertFalse(va != vb) def test_rcOrpreButNotBoth(self): """ Release Candidate and prerelease can't both be given. """ with self.assertRaises(ValueError): Version("whatever", 1, 0, 0, prerelease=1, release_candidate=1) def test_comparingReleaseCandidates(self): """ The value specified as the release candidate is used in version comparisons. """ va = Version("whatever", 1, 0, 0, release_candidate=1) vb = Version("whatever", 1, 0, 0, release_candidate=2) self.assertTrue(va < vb) self.assertTrue(vb > va) self.assertTrue(va <= vb) self.assertTrue(vb >= va) self.assertTrue(va != vb) self.assertTrue(vb == Version("whatever", 1, 0, 0, release_candidate=2)) self.assertTrue(va == va) def test_comparingDev(self): """ The value specified as the dev release is used in version comparisons. """ va = Version("whatever", 1, 0, 0, dev=1) vb = Version("whatever", 1, 0, 0, dev=2) self.assertTrue(va < vb) self.assertTrue(vb > va) self.assertTrue(va <= vb) self.assertTrue(vb >= va) self.assertTrue(va != vb) self.assertTrue(vb == Version("whatever", 1, 0, 0, dev=2)) self.assertTrue(va == va) def test_comparingDevAndRC(self): """ The value specified as the dev release and release candidate is used in version comparisons. """ va = Version("whatever", 1, 0, 0, release_candidate=1, dev=1) vb = Version("whatever", 1, 0, 0, release_candidate=1, dev=2) self.assertTrue(va < vb) self.assertTrue(vb > va) self.assertTrue(va <= vb) self.assertTrue(vb >= va) self.assertTrue(va != vb) self.assertTrue(vb == Version("whatever", 1, 0, 0, release_candidate=1, dev=2)) self.assertTrue(va == va) def test_comparingDevAndRCDifferent(self): """ The value specified as the dev release and release candidate is used in version comparisons. """ va = Version("whatever", 1, 0, 0, release_candidate=1, dev=1) vb = Version("whatever", 1, 0, 0, release_candidate=2, dev=1) self.assertTrue(va < vb) self.assertTrue(vb > va) self.assertTrue(va <= vb) self.assertTrue(vb >= va) self.assertTrue(va != vb) self.assertTrue(vb == Version("whatever", 1, 0, 0, release_candidate=2, dev=1)) self.assertTrue(va == va) def test_infComparison(self): """ L{_inf} is equal to L{_inf}. This is a regression test. """ self.assertEqual(_inf, _inf) def test_disallowBuggyComparisons(self): """ The package names of the Version objects need to be the same. """ self.assertRaises(IncomparableVersions, operator.eq, Version("dummy", 1, 0, 0), Version("dumym", 1, 0, 0)) def test_notImplementedComparisons(self): """ Comparing a L{Version} to some other object type results in C{NotImplemented}. """ va = Version("dummy", 1, 0, 0) vb = ("dummy", 1, 0, 0) # a tuple is not a Version object self.assertEqual(va.__cmp__(vb), NotImplemented) def test_repr(self): """ Calling C{repr} on a version returns a human-readable string representation of the version. """ self.assertEqual(repr(Version("dummy", 1, 2, 3)), "Version('dummy', 1, 2, 3)") def test_reprWithPrerelease(self): """ Calling C{repr} on a version with a prerelease returns a human-readable string representation of the version including the prerelease as a release candidate.. """ self.assertEqual(repr(Version("dummy", 1, 2, 3, prerelease=4)), "Version('dummy', 1, 2, 3, release_candidate=4)") def test_reprWithReleaseCandidate(self): """ Calling C{repr} on a version with a release candidate returns a human-readable string representation of the version including the rc. """ self.assertEqual(repr(Version("dummy", 1, 2, 3, release_candidate=4)), "Version('dummy', 1, 2, 3, release_candidate=4)") def test_devWithReleaseCandidate(self): """ Calling C{repr} on a version with a dev release returns a human-readable string representation of the version including the dev release. """ self.assertEqual(repr(Version("dummy", 1, 2, 3, dev=4)), "Version('dummy', 1, 2, 3, dev=4)") def test_str(self): """ Calling C{str} on a version returns a human-readable string representation of the version. """ self.assertEqual(str(Version("dummy", 1, 2, 3)), "[dummy, version 1.2.3]") def test_strWithPrerelease(self): """ Calling C{str} on a version with a prerelease includes the prerelease as a release candidate. """ self.assertEqual(str(Version("dummy", 1, 0, 0, prerelease=1)), "[dummy, version 1.0.0rc1]") def test_strWithReleaseCandidate(self): """ Calling C{str} on a version with a release candidate includes the release candidate. """ self.assertEqual(str(Version("dummy", 1, 0, 0, release_candidate=1)), "[dummy, version 1.0.0rc1]") def test_strWithDevAndReleaseCandidate(self): """ Calling C{str} on a version with a release candidate and dev release includes the release candidate and the dev release. """ self.assertEqual(str(Version("dummy", 1, 0, 0, release_candidate=1, dev=2)), "[dummy, version 1.0.0rc1dev2]") def test_strWithDev(self): """ Calling C{str} on a version with a dev release includes the dev release. """ self.assertEqual(str(Version("dummy", 1, 0, 0, dev=1)), "[dummy, version 1.0.0dev1]") def testShort(self): self.assertEqual(Version('dummy', 1, 2, 3).short(), '1.2.3') def test_goodSVNEntries_4(self): """ Version should be able to parse an SVN format 4 entries file. """ version = Version("dummy", 1, 0, 0) self.assertEqual( version._parseSVNEntries_4(BytesIO(VERSION_4_ENTRIES)), b'18211') def test_goodSVNEntries_8(self): """ Version should be able to parse an SVN format 8 entries file. """ version = Version("dummy", 1, 0, 0) self.assertEqual( version._parseSVNEntries_8(BytesIO(VERSION_8_ENTRIES)), b'22715') def test_goodSVNEntries_9(self): """ Version should be able to parse an SVN format 9 entries file. """ version = Version("dummy", 1, 0, 0) self.assertEqual( version._parseSVNEntries_9(BytesIO(VERSION_9_ENTRIES)), b'22715') def test_goodSVNEntriesTenPlus(self): """ Version should be able to parse an SVN format 10 entries file. """ version = Version("dummy", 1, 0, 0) self.assertEqual( version._parseSVNEntriesTenPlus(BytesIO(VERSION_10_ENTRIES)), b'22715') def test_getVersionString(self): """ L{getVersionString} returns a string with the package name and the short version number. """ self.assertEqual( 'Twisted 8.0.0', getVersionString(Version('Twisted', 8, 0, 0))) def test_getVersionStringWithPrerelease(self): """ L{getVersionString} includes the prerelease as a release candidate, if any. """ self.assertEqual( getVersionString(Version("whatever", 8, 0, 0, prerelease=1)), "whatever 8.0.0rc1") def test_getVersionStringWithReleaseCandidate(self): """ L{getVersionString} includes the release candidate, if any. """ self.assertEqual( getVersionString(Version("whatever", 8, 0, 0, release_candidate=1)), "whatever 8.0.0rc1") def test_getVersionStringWithDev(self): """ L{getVersionString} includes the dev release, if any. """ self.assertEqual( getVersionString(Version("whatever", 8, 0, 0, dev=1)), "whatever 8.0.0dev1") def test_getVersionStringWithDevAndRC(self): """ L{getVersionString} includes the dev release and release candidate, if any. """ self.assertEqual( getVersionString(Version("whatever", 8, 0, 0, release_candidate=2, dev=1)), "whatever 8.0.0rc2dev1") def test_baseWithNEXT(self): """ The C{base} method returns just "NEXT" when NEXT is the major version. """ self.assertEqual(Version("foo", "NEXT", 0, 0).base(), "NEXT") def test_base(self): """ The C{base} method returns a very simple representation of the version. """ self.assertEqual(Version("foo", 1, 0, 0).base(), "1.0.0") def test_baseWithPrerelease(self): """ The base version includes 'rcX' for versions with prereleases. """ self.assertEqual(Version("foo", 1, 0, 0, prerelease=8).base(), "1.0.0rc8") def test_baseWithDev(self): """ The base version includes 'devX' for versions with dev releases. """ self.assertEqual(Version("foo", 1, 0, 0, dev=8).base(), "1.0.0dev8") def test_baseWithReleaseCandidate(self): """ The base version includes 'rcX' for versions with prereleases. """ self.assertEqual(Version("foo", 1, 0, 0, release_candidate=8).base(), "1.0.0rc8") def test_baseWithDevAndRC(self): """ The base version includes 'rcXdevX' for versions with dev releases and a release candidate. """ self.assertEqual(Version("foo", 1, 0, 0, release_candidate=2, dev=8).base(), "1.0.0rc2dev8") def test_git(self): gitDir = FilePath(self.mktemp()) gitDir.makedirs() gitDir.child("HEAD").setContent(b"ref: refs/heads/master\n") heads = gitDir.child("refs").child("heads") heads.makedirs() heads.child("master").setContent( b"a96d61d94949c0dc097d6e1c3515792e99a724d5\n") version = Version("foo", 1, 0, 0) self.assertEqual(version._parseGitDir(gitDir.path), "a96d61d94949c0dc097d6e1c3515792e99a724d5") class FormatDiscoveryTests(TestCase): """ Tests which discover the parsing method based on the imported module name. """ def setUp(self): """ Create a temporary directory with a package structure in it. """ self.entry = FilePath(mkdtemp()) self.addCleanup(self.entry.remove) self.preTestModules = sys.modules.copy() sys.path.append(self.entry.path) pkg = self.entry.child("incremental_test_package") pkg.makedirs() pkg.child("__init__.py").setContent( b"from incremental import Version\n" b"version = Version('incremental_test_package', 1, 0, 0)\n") self.svnEntries = pkg.child(".svn") self.svnEntries.makedirs() def tearDown(self): """ Remove the imported modules and sys.path modifications. """ sys.modules.clear() sys.modules.update(self.preTestModules) sys.path.remove(self.entry.path) def checkSVNFormat(self, formatVersion, entriesText, expectedRevision): """ Check for the given revision being detected after setting the SVN entries text and format version of the test directory structure. """ self.svnEntries.child("format").setContent(formatVersion + b"\n") self.svnEntries.child("entries").setContent(entriesText) self.assertEqual(self.getVersion()._getSVNVersion(), expectedRevision) def getVersion(self): """ Import and retrieve the Version object from our dynamically created package. """ import incremental_test_package return incremental_test_package.version def test_detectVersion4(self): """ Verify that version 4 format file will be properly detected and parsed. """ self.checkSVNFormat(b"4", VERSION_4_ENTRIES, b'18211') def test_detectVersion8(self): """ Verify that version 8 format files will be properly detected and parsed. """ self.checkSVNFormat(b"8", VERSION_8_ENTRIES, b'22715') def test_detectVersion9(self): """ Verify that version 9 format files will be properly detected and parsed. """ self.checkSVNFormat(b"9", VERSION_9_ENTRIES, b'22715') def test_unparseableEntries(self): """ Verify that the result is C{b"Unknown"} for an apparently supported version for which parsing of the entries file fails. """ self.checkSVNFormat(b"4", b"some unsupported stuff", b"Unknown") def test_detectVersion10(self): """ Verify that version 10 format files will be properly detected and parsed. Differing from previous formats, the version 10 format lacks a I{format} file and B{only} has the version information on the first line of the I{entries} file. """ self.svnEntries.child("entries").setContent(VERSION_10_ENTRIES) self.assertEqual(self.getVersion()._getSVNVersion(), b'22715') def test_detectUnknownVersion(self): """ Verify that a new version of SVN will result in the revision 'Unknown'. """ self.checkSVNFormat(b"some-random-new-version", b"ooga booga!", b'Unknown') def test_getVersionStringWithRevision(self): """ L{getVersionString} includes the discovered revision number. """ self.svnEntries.child("format").setContent(b"9\n") self.svnEntries.child("entries").setContent(VERSION_10_ENTRIES) version = getVersionString(self.getVersion()) self.assertEqual( "incremental_test_package 1.0.0+r22715", version) self.assertTrue(isinstance(version, type("")))