def test_basic_attribute_access(self):
keyed_tuple = util.KeyedTuple([1, 2], ['a', 'b'])
eq_(keyed_tuple.a, 1)
eq_(keyed_tuple.b, 2)
def should_raise():
keyed_tuple.c
assert_raises(AttributeError, should_raise)
def test_basic_index_access(self):
keyed_tuple = util.KeyedTuple([1, 2], ['a', 'b'])
eq_(keyed_tuple[0], 1)
eq_(keyed_tuple[1], 2)
def should_raise():
keyed_tuple[2]
assert_raises(IndexError, should_raise)
def test_empty(self):
keyed_tuple = util.KeyedTuple([])
eq_(type(keyed_tuple), util.KeyedTuple)
eq_(str(keyed_tuple), '()')
eq_(len(keyed_tuple), 0)
eq_(keyed_tuple.__dict__, {'_labels': []})
eq_(list(keyed_tuple.keys()), [])
eq_(keyed_tuple._fields, ())
eq_(keyed_tuple._asdict(), {})
def test_values_but_no_labels(self):
keyed_tuple = util.KeyedTuple([1, 2])
eq_(type(keyed_tuple), util.KeyedTuple)
eq_(str(keyed_tuple), '(1, 2)')
eq_(len(keyed_tuple), 2)
eq_(keyed_tuple.__dict__, {'_labels': []})
eq_(list(keyed_tuple.keys()), [])
eq_(keyed_tuple._fields, ())
eq_(keyed_tuple._asdict(), {})
eq_(keyed_tuple[0], 1)
eq_(keyed_tuple[1], 2)
def test_immutable(self):
keyed_tuple = util.KeyedTuple([1, 2], ['a', 'b'])
eq_(str(keyed_tuple), '(1, 2)')
# attribute access: mutable
eq_(keyed_tuple.a, 1)
keyed_tuple.a = 100
eq_(keyed_tuple.a, 100)
keyed_tuple.c = 300
eq_(keyed_tuple.c, 300)
# index access: immutable
def should_raise():
keyed_tuple[0] = 100
assert_raises(TypeError, should_raise)
def test_duplicate_labels(self):
keyed_tuple = util.KeyedTuple([1, 2, 3], ['a', 'b', 'b'])
eq_(str(keyed_tuple), '(1, 2, 3)')
# TODO: consider not allowing duplicate labels
expected = {'a': 1, 'b': 3, '_labels': ['a', 'b', 'b']}
eq_(keyed_tuple.__dict__, expected)
eq_(list(keyed_tuple.keys()), ['a', 'b', 'b'])
eq_(keyed_tuple._fields, ('a', 'b', 'b'))
eq_(keyed_tuple._asdict(), {'a': 1, 'b': 3})
# attribute access: can't get at value 2
eq_(keyed_tuple.a, 1)
eq_(keyed_tuple.b, 3)
# index access: can get at value 2
eq_(keyed_tuple[0], 1)
eq_(keyed_tuple[1], 2)
eq_(keyed_tuple[2], 3)
def test_basic_creation(self):
keyed_tuple = util.KeyedTuple([1, 2], ['a', 'b'])
eq_(str(keyed_tuple), '(1, 2)')
eq_(list(keyed_tuple.keys()), ['a', 'b'])
eq_(keyed_tuple._fields, ('a', 'b'))
eq_(keyed_tuple._asdict(), {'a': 1, 'b': 2})
