def test_join_multiple(self):
assert sorted(join_css_class('cls1', 'cls2 cls3').split(' ')) == [
'cls1',
'cls2',
'cls3',
]
assert sorted(join_css_class(
'cls1', 'cls1 cls2').split(' ')) == ['cls1', 'cls2']
def test_empty(self):
assert join_css_class('cls1', None) == 'cls1'
assert join_css_class(None, 'cls2') == 'cls2'
def test_output(self):
assert join_css_class('') == ''
assert join_css_class('cls1') == 'cls1'
def test_join_distincts(self):
assert join_css_class('cls1', 'cls1') == 'cls1'
assert sorted(join_css_class('cls1', 'cls2',
'cls1').split(' ')) == ['cls1', 'cls2']