def test_delta_as_data(self):
delta = Delta(ops=[
Insert('abc', None),
Retain(1, {'color': 'red'}),
Delete(4),
Insert('def', {'bold': True}),
Retain(6, None)
])
expected = [{
'insert': 'abc'
}, {
'retain': 1,
'attributes': {
'color': 'red'
}
}, {
'delete': 4
}, {
'insert': 'def',
'attributes': {
'bold': True
}
}, {
'retain': 6
}]
self.assertListEqual(delta.as_data(), expected)
def test_retain_as_data(self):
assert Retain(1, None).as_data() == {'retain': 1}
assert Retain(1, {}).as_data() == {'retain': 1}
assert Retain(1, {
'bold': True
}).as_data() == {
'retain': 1,
'attributes': {
'bold': True
}
}
def test_retain_from_dict(self):
assert load_operation({'retain': 1}) == Retain(1, None)
assert load_operation({
'retain': 1,
'attributes': {
'bold': True
}
}) == Insert(1, {'bold': True})
def test_delta_as_string(self):
delta = Delta(ops=[
Insert('abc', None),
Retain(1, {'color': 'red'}),
Delete(3),
])
assert str(delta) == ('[{"insert": "abc"}, '
'{"retain": 1, "attributes": {"color": "red"}}, '
'{"delete": 3}]')
def test_insert_in_middle_of_text(self):
a = Delta().insert('Hello')
b = Delta().retain(3).insert('X')
assert a.ops == [Insert('Hello', None)]
assert b.ops == [Retain(3, None), Insert('X', None)]
expected = Delta().insert('HelXlo')
compose = a.compose(b)
assert compose.ops == expected.ops, f'{expected} not {compose}'
def test_as_data(self):
op = Retain(1, {'bold': True})
assert op.as_data() == {'retain': 1, 'attributes': {'bold': True}}
def test_retain_str_json(self):
assert str(Retain('foo', None)) == '{"retain": "foo"}'
assert str(Retain('foo', {})) == '{"retain": "foo"}'
assert str(Retain(
'foo', {'bold': True
})) == '{"retain": "foo", "attributes": {"bold": true}}'
def test_parse(self):
op = Retain.fromdict({'retain': 1})
assert op.value == 1
assert op.length == 1
assert op.attributes is None
def test_retain_attributes(self):
op = Retain(1, {'bold': True})
assert op.attributes == {'bold': True}
def test_retain_constructor(self):
op = Retain(1, None)
assert op.value == 1
assert op.length == 1
assert op.attributes is None
def test_sum_operation(self):
op = Retain(1, None) + Retain(2, None)
assert op == Retain(3, None)
op = reduce(lambda o, other: o + other,
[Retain(1, None),
Retain(2, None),
Retain(3, None)])
assert op == Retain(6, None)
op = Retain(1, {'bold': True}) + Retain(2, {'bold': True})
assert op == Retain(3, {'bold': True})
with pytest.raises(ValueError) as err:
Retain(1, None) + Insert('foo', None)
assert err.match('Operations are not the same type')
with pytest.raises(ValueError) as err:
Retain(1, {'bold': True}) + Retain(1, {'bold': False})
assert err.match('operations with different attributes')
def test_as_json(self):
op = Retain(1, {'bold': True})
assert op.as_json() == '{"retain": 1, "attributes": {"bold": true}}'