import pytest

def test_immutable_major(version):

with pytest.raises(AttributeError, match="attribute 'major' is readonly"):

version.major = 9

def test_immutable_minor(version):

with pytest.raises(AttributeError, match="attribute 'minor' is readonly"):

version.minor = 9

def test_immutable_patch(version):

with pytest.raises(AttributeError, match="attribute 'patch' is readonly"):

version.patch = 9

def test_immutable_prerelease(version):

with pytest.raises(AttributeError, match="attribute 'prerelease' is readonly"):

version.prerelease = "alpha.9.9"

def test_immutable_build(version):

with pytest.raises(AttributeError, match="attribute 'build' is readonly"):

version.build = "build.99.e0f985a"

def test_immutable_unknown_attribute(version):

with pytest.raises(

AttributeError, match=".* object has no attribute 'new_attribute'"

):

version.new_attribute = "forbidden"