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Edit File: test_version.py

# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
Tests for L{incremental}.
"""

from __future__ import division, absolute_import

import operator
import unittest

from incremental import getVersionString, IncomparableVersions
from incremental import Version, _inf

from twisted.trial.unittest import TestCase

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, post=2, 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, post=0, dev=0)

with self.assertRaises(ValueError):
            Version("whatever", "NEXT", 0, 1, release_candidate=0, post=0, dev=0)

with self.assertRaises(ValueError):
            Version("whatever", "NEXT", 0, 0, release_candidate=1, post=0, dev=0)

with self.assertRaises(ValueError):
            Version("whatever", "NEXT", 0, 0, release_candidate=0, post=1, dev=0)

with self.assertRaises(ValueError):
            Version("whatever", "NEXT", 0, 0, release_candidate=0, post=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_comparingPostReleasesWithReleases(self):
        """
        Post releases are always greater than versions without post
        releases.
        """
        va = Version("whatever", 1, 0, 0, post=1)
        vb = Version("whatever", 1, 0, 0)
        self.assertTrue(va > vb)
        self.assertFalse(va < vb)
        self.assertNotEquals(vb, va)

def test_comparingDevReleasesWithPreviousPostReleases(self):
        """
        Dev releases are always greater than postreleases based on previous
        releases.
        """
        va = Version("whatever", 1, 0, 1, dev=1)
        vb = Version("whatever", 1, 0, 0, post=1)
        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_comparingPost(self):
        """
        The value specified as the postrelease is used in version comparisons.
        """
        va = Version("whatever", 1, 0, 0, post=1)
        vb = Version("whatever", 1, 0, 0, post=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, post=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_reprWithPost(self):
        """
        Calling C{repr} on a version with a postrelease returns a
        human-readable string representation of the version including the
        postrelease.
        """
        self.assertEqual(
            repr(Version("dummy", 1, 2, 3, post=4)), "Version('dummy', 1, 2, 3, post=4)"
        )

def test_reprWithDev(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 1.0.0.rc1]"
        )

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 1.0.0.rc1]",
        )

def test_strWithPost(self):
        """
        Calling C{str} on a version with a postrelease includes the
        postrelease.
        """
        self.assertEqual(
            str(Version("dummy", 1, 0, 0, post=1)), "[dummy, version 1.0.0.post1]"
        )

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 1.0.0.rc1.dev2]",
        )

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 1.0.0.dev1]"
        )

def test_strWithDevAndPost(self):
        """
        Calling C{str} on a version with a postrelease and dev release
        includes the postrelease and the dev release.
        """
        self.assertEqual(
            str(Version("dummy", 1, 0, 0, post=1, dev=2)),
            "[dummy, version 1.0.0.post1.dev2]",
        )

def testShort(self):
        self.assertEqual(Version("dummy", 1, 2, 3).short(), "1.2.3")

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 8.0.0.rc1",
        )

def test_getVersionStringWithReleaseCandidate(self):
        """
        L{getVersionString} includes the release candidate, if any.
        """
        self.assertEqual(
            getVersionString(Version("whatever", 8, 0, 0, release_candidate=1)),
            "whatever 8.0.0.rc1",
        )

def test_getVersionStringWithPost(self):
        """
        L{getVersionString} includes the postrelease, if any.
        """
        self.assertEqual(
            getVersionString(Version("whatever", 8, 0, 0, post=1)),
            "whatever 8.0.0.post1",
        )

def test_getVersionStringWithDev(self):
        """
        L{getVersionString} includes the dev release, if any.
        """
        self.assertEqual(
            getVersionString(Version("whatever", 8, 0, 0, dev=1)), "whatever 8.0.0.dev1"
        )

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 8.0.0.rc2.dev1",
        )

def test_getVersionStringWithDevAndPost(self):
        """
        L{getVersionString} includes the dev release and postrelease, if
        any.
        """
        self.assertEqual(
            getVersionString(Version("whatever", 8, 0, 0, post=2, dev=1)),
            "whatever 8.0.0.post2.dev1",
        )

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(), "1.0.0.rc8")

def test_baseWithPost(self):
        """
        The base version includes 'postX' for versions with postreleases.
        """
        self.assertEqual(Version("foo", 1, 0, 0, post=8).base(), "1.0.0.post8")

def test_baseWithDev(self):
        """
        The base version includes 'devX' for versions with dev releases.
        """
        self.assertEqual(Version("foo", 1, 0, 0, dev=8).base(), "1.0.0.dev8")

def test_baseWithReleaseCandidate(self):
        """
        The base version includes 'rcX' for versions with prereleases.
        """
        self.assertEqual(
            Version("foo", 1, 0, 0, release_candidate=8).base(), "1.0.0.rc8"
        )

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(), "1.0.0.rc2.dev8"
        )

def test_baseWithDevAndPost(self):
        """
        The base version includes 'postXdevX' for versions with dev releases
        and a postrelease.
        """
        self.assertEqual(
            Version("foo", 1, 0, 0, post=2, dev=8).base(), "1.0.0.post2.dev8"
        )