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"""Legacy prerelease counters must not make next_version move backwards."""

import pytest

from semver import Version

@pytest.mark.parametrize(

"current,token,expected",

[

("1.2.3-rc9", "rc", "1.2.4-rc10"),

("1.2.3-rc99", "rc", "1.2.4-rc100"),

("1.2.3-rc999+build.7", "rc", "1.2.4-rc1000"),

("1.2.3-beta9", "beta", "1.2.4-beta10"),

("1.2.3-alpha.beta9", "alpha.beta", "1.2.4-alpha.beta10"),

("1.2.3-0rc9", "0rc", "1.2.4-0rc10"),

("0.0.0-rc9", "rc", "0.0.1-rc10"),

("1.2.3-rc8", "rc", "1.2.3-rc9"),

("1.2.3-rc98", "rc", "1.2.3-rc99"),

("1.2.3-rc099", "rc", "1.2.3-rc100"),

("1.2.3-rc09", "rc", "1.2.3-rc10"),

("1.2.3-rc.9", "rc", "1.2.3-rc.10"),

],

)

def test_next_legacy_counter_preserves_order(current, token, expected):

original = Version.parse(current)

result = original.next_version("prerelease", token)

assert str(result) == expected

assert result > original

assert result.build is None

assert Version.parse(str(result)).to_tuple() == result.to_tuple()

assert str(original) == current

def test_repeated_legacy_bumps_preserve_order_and_subclass():

class Release(Version):

pass

current = Release.parse("1.2.3-rc8+build.7")

for expected in ("1.2.3-rc9", "1.2.4-rc10", "1.2.4-rc11"):

result = current.next_version("prerelease")

assert isinstance(result, Release)

assert str(result) == expected

assert result > current

assert result.build is None

current = result