def test_multi_version_match_succeeds():
require_start = Constraint('>', '1.0')
require_end = Constraint('<', '1.2')
provider = Constraint('==', '1.1')
multi = MultiConstraint((require_start, require_end))
assert multi.matches(provider)
def test_multi_version_provided_match_succeeds():
require_start = Constraint('>', '1.0')
require_end = Constraint('<', '1.2')
provide_start = Constraint('>=', '1.1')
provide_end = Constraint('<', '2.0')
multi_require = MultiConstraint((require_start, require_end))
multi_provide = MultiConstraint((provide_start, provide_end))
assert multi_require.matches(multi_provide)