class UpdateExpressionTestCase(TestCase):
def setUp(self):
self.attribute = UnicodeAttribute(attr_name='foo')
self.list_attribute = ListAttribute(attr_name='foo_list', default=[])
def test_set_action(self):
action = self.attribute.set('bar')
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 = :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}}
def test_set_action_attribute_container(self):
# Simulate initialization from inside an AttributeContainer
my_map_attribute = MapAttribute(attr_name='foo')
my_map_attribute._make_attribute()
my_map_attribute._update_attribute_paths(my_map_attribute.attr_name)
action = my_map_attribute.set(MapAttribute(bar='baz'))
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 = :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'M': {'bar': {'S': 'baz'}}}}
def test_increment_action(self):
action = self.attribute.set(Path('bar') + 0)
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 = #1 + :0"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'N': '0'}}
def test_increment_action_value(self):
action = self.attribute.set(Value(0) + Path('bar'))
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 = :0 + #1"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'N': '0'}}
def test_decrement_action(self):
action = self.attribute.set(Path('bar') - 0)
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 = #1 - :0"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'N': '0'}}
def test_decrement_action_value(self):
action = self.attribute.set(Value(0) - Path('bar'))
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 = :0 - #1"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'N': '0'}}
def test_append_action(self):
action = self.attribute.set(Path('bar').append(['baz']))
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 = list_append (#1, :0)"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'L': [{'S': 'baz'}]}}
def test_prepend_action(self):
action = self.attribute.set(Path('bar').prepend(['baz']))
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 = list_append (:0, #1)"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'L': [{'S': 'baz'}]}}
def test_conditional_set_action(self):
action = self.attribute.set(Path('bar') | 'baz')
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 = if_not_exists (#1, :0)"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'S': 'baz'}}
def test_remove_action(self):
action = self.attribute.remove()
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {}
def test_add_action(self):
action = Path('foo').add(0)
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'N': '0'}}
def test_add_action_set(self):
action = NumberSetAttribute(attr_name='foo').add(0, 1)
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'NS': ['0', '1']}}
def test_add_action_serialized(self):
action = NumberSetAttribute(attr_name='foo').add({'NS': ['0']})
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'NS': ['0']}}
def test_add_action_list(self):
with self.assertRaises(ValueError):
Path('foo').add({'L': [{'N': '0'}]})
def test_delete_action(self):
action = NumberSetAttribute(attr_name='foo').delete(0, 1)
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'NS': ['0', '1']}}
def test_delete_action_set(self):
action = NumberSetAttribute(attr_name='foo').delete({0, 1})
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'NS': ['0', '1']}}
def test_delete_action_serialized(self):
action = NumberSetAttribute(attr_name='foo').delete({'NS': ['0']})
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'NS': ['0']}}
def test_delete_action_non_set(self):
with self.assertRaises(ValueError):
Path('foo').delete({'N': '0'})
def test_update(self):
update = Update(
self.attribute.set({'S': 'bar'}),
self.attribute.remove(),
self.attribute.add({'N': '0'}),
self.attribute.delete({'NS': ['0']})
)
placeholder_names, expression_attribute_values = {}, {}
expression = update.serialize(placeholder_names, expression_attribute_values)
assert expression == "SET #0 = :0 REMOVE #0 ADD #0 :1 DELETE #0 :2"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {
':0': {'S': 'bar'},
':1': {'N': '0'},
':2': {'NS': ['0']}
}
def test_list_update_remove_by_index(self):
update = Update(
self.list_attribute.remove_indexes(0),
)
placeholder_names, expression_attribute_values = {}, {}
expression = update.serialize(placeholder_names, expression_attribute_values)
assert expression == "REMOVE #0[0]"
assert placeholder_names == {'foo_list': '#0'}
assert expression_attribute_values == {}
update = Update(
self.list_attribute.remove_indexes(0, 10),
)
placeholder_names, expression_attribute_values = {}, {}
expression = update.serialize(placeholder_names, expression_attribute_values)
assert expression == "REMOVE #0[0], #0[10]"
assert placeholder_names == {'foo_list': '#0'}
assert expression_attribute_values == {}
with self.assertRaises(ValueError) as e:
Update(self.list_attribute.remove_indexes(0, "a"))
assert str(e.exception) == "Method 'remove_indexes' arguments must be 'int'"
class UpdateExpressionTestCase(TestCase):
def setUp(self):
self.attribute = UnicodeAttribute(attr_name='foo')
def test_set_action(self):
action = self.attribute.set('bar')
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 = :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}}
def test_increment_action(self):
action = self.attribute.set(Path('bar') + 0)
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 = #1 + :0"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'N': '0'}}
def test_increment_action_value(self):
action = self.attribute.set(Value(0) + Path('bar'))
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 = :0 + #1"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'N': '0'}}
def test_decrement_action(self):
action = self.attribute.set(Path('bar') - 0)
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 = #1 - :0"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'N': '0'}}
def test_decrement_action_value(self):
action = self.attribute.set(Value(0) - Path('bar'))
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 = :0 - #1"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'N': '0'}}
def test_append_action(self):
action = self.attribute.set(Path('bar').append(['baz']))
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 = list_append (#1, :0)"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'L': [{'S': 'baz'}]}}
def test_prepend_action(self):
action = self.attribute.set(Path('bar').prepend(['baz']))
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 = list_append (:0, #1)"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'L': [{'S': 'baz'}]}}
def test_conditional_set_action(self):
action = self.attribute.set(Path('bar') | 'baz')
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 = if_not_exists (#1, :0)"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {':0': {'S': 'baz'}}
def test_remove_action(self):
action = self.attribute.remove()
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {}
def test_add_action(self):
action = Path('foo').add(0)
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'N': '0'}}
def test_add_action_set(self):
action = NumberSetAttribute(attr_name='foo').add(0, 1)
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'NS': ['0', '1']}}
def test_add_action_serialized(self):
action = NumberSetAttribute(attr_name='foo').add({'NS': ['0']})
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'NS': ['0']}}
def test_add_action_list(self):
with self.assertRaises(ValueError):
Path('foo').add({'L': [{'N': '0'}]})
def test_delete_action(self):
action = NumberSetAttribute(attr_name='foo').delete(0, 1)
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'NS': ['0', '1']}}
def test_delete_action_set(self):
action = NumberSetAttribute(attr_name='foo').delete(set([0, 1]))
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'NS': ['0', '1']}}
def test_delete_action_serialized(self):
action = NumberSetAttribute(attr_name='foo').delete({'NS': ['0']})
placeholder_names, expression_attribute_values = {}, {}
expression = action.serialize(placeholder_names,
expression_attribute_values)
assert expression == "#0 :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'NS': ['0']}}
def test_delete_action_non_set(self):
with self.assertRaises(ValueError):
Path('foo').delete({'N': '0'})
def test_update(self):
update = Update(self.attribute.set({'S': 'bar'}),
self.attribute.remove(), self.attribute.add({'N':
'0'}),
self.attribute.delete({'NS': ['0']}))
placeholder_names, expression_attribute_values = {}, {}
expression = update.serialize(placeholder_names,
expression_attribute_values)
assert expression == "SET #0 = :0 REMOVE #0 ADD #0 :1 DELETE #0 :2"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {
':0': {
'S': 'bar'
},
':1': {
'N': '0'
},
':2': {
'NS': ['0']
}
}