def test_add(self):
Requirement.parse('foo==1.0') + Requirement.parse('foo')
Requirement.parse('foo[bar]==1.0') + 'foo'
Requirement.parse('foo[bar]>=1.0') + 'foo<2'
r = Requirement('foo') + 'foo ==1.0'
self.assertEqual(r.version_constraints, '==1.0')
r2 = Requirement.parse('foo[bar]') + 'foo[baz]'
self.assertEqual(r2.build_options, set(['bar', 'baz']))
def test_add_raises(self):
self.assertRaises(InvalidRequirement,
Requirement('foo').__add__, 'bar')