class UpdateExpressionTestCase(TestCase):
def setUp(self):
self.attribute = UnicodeAttribute(attr_name='foo')
@fail_on(unused_loop=False)
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'}}
@fail_on(unused_loop=False)
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'}}
@fail_on(unused_loop=False)
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'}}
@fail_on(unused_loop=False)
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'}}
@fail_on(unused_loop=False)
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'}}
@fail_on(unused_loop=False)
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'}]}}
@fail_on(unused_loop=False)
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'}]}}
@fail_on(unused_loop=False)
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'}}
@fail_on(unused_loop=False)
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 == {}
@fail_on(unused_loop=False)
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'}}
@fail_on(unused_loop=False)
def test_add_action_set(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']}}
@fail_on(unused_loop=False)
def test_add_action_list(self):
with self.assertRaises(ValueError):
Path('foo').add({'L': [{'N': '0'}]})
@fail_on(unused_loop=False)
def test_delete_action(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']}}
@fail_on(unused_loop=False)
def test_delete_action_non_set(self):
with self.assertRaises(ValueError):
Path('foo').delete({'N': '0'})
@fail_on(unused_loop=False)
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 setUp(self):
self.attribute = UnicodeAttribute(attr_name='foo')
class ConditionExpressionTestCase(TestCase):
def setUp(self):
self.attribute = UnicodeAttribute(attr_name='foo')
@fail_on(unused_loop=False)
def test_equal(self):
condition = self.attribute == 'bar'
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 = :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}}
@fail_on(unused_loop=False)
def test_not_equal(self):
condition = self.attribute != 'bar'
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 <> :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}}
@fail_on(unused_loop=False)
def test_less_than(self):
condition = self.attribute < 'bar'
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 < :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}}
@fail_on(unused_loop=False)
def test_less_than_or_equal(self):
condition = self.attribute <= 'bar'
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 <= :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}}
@fail_on(unused_loop=False)
def test_greater_than(self):
condition = self.attribute > 'bar'
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 > :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}}
@fail_on(unused_loop=False)
def test_greater_than_or_equal(self):
condition = self.attribute >= 'bar'
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 >= :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}}
@fail_on(unused_loop=False)
def test_between(self):
condition = self.attribute.between('bar', 'baz')
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 BETWEEN :0 AND :1"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}, ':1': {'S': 'baz'}}
@fail_on(unused_loop=False)
def test_in(self):
condition = self.attribute.is_in('bar', 'baz')
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 IN (:0, :1)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}, ':1': {'S': 'baz'}}
@fail_on(unused_loop=False)
def test_exists(self):
condition = self.attribute.exists()
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "attribute_exists (#0)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {}
@fail_on(unused_loop=False)
def test_does_not_exist(self):
condition = self.attribute.does_not_exist()
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "attribute_not_exists (#0)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {}
@fail_on(unused_loop=False)
def test_is_type(self):
condition = self.attribute.is_type()
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "attribute_type (#0, :0)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S' : 'S'}}
@fail_on(unused_loop=False)
def test_begins_with(self):
condition = self.attribute.startswith('bar')
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "begins_with (#0, :0)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S' : 'bar'}}
@fail_on(unused_loop=False)
def test_contains(self):
condition = self.attribute.contains('bar')
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "contains (#0, :0)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S' : 'bar'}}
@fail_on(unused_loop=False)
def test_contains_string_set(self):
condition = UnicodeSetAttribute(attr_name='foo').contains('bar')
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "contains (#0, :0)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S' : 'bar'}}
@fail_on(unused_loop=False)
def test_contains_number_set(self):
condition = NumberSetAttribute(attr_name='foo').contains(1)
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "contains (#0, :0)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'N' : '1'}}
@fail_on(unused_loop=False)
def test_contains_list(self):
condition = ListAttribute(attr_name='foo').contains('bar')
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "contains (#0, :0)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S' : 'bar'}}
@fail_on(unused_loop=False)
def test_contains_attribute(self):
condition = ListAttribute(attr_name='foo').contains(Path('bar'))
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "contains (#0, #1)"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {}
@fail_on(unused_loop=False)
def test_size(self):
condition = size(self.attribute) == 3
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "size (#0) = :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'N' : '3'}}
@fail_on(unused_loop=False)
def test_sizes(self):
condition = size(self.attribute) == size(Path('bar'))
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "size (#0) = size (#1)"
assert placeholder_names == {'foo': '#0', 'bar': '#1'}
assert expression_attribute_values == {}
@fail_on(unused_loop=False)
def test_and(self):
condition = (self.attribute < 'bar') & (self.attribute > 'baz')
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "(#0 < :0 AND #0 > :1)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}, ':1': {'S': 'baz'}}
@fail_on(unused_loop=False)
def test_or(self):
condition = (self.attribute < 'bar') | (self.attribute > 'baz')
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "(#0 < :0 OR #0 > :1)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}, ':1': {'S': 'baz'}}
@fail_on(unused_loop=False)
def test_not(self):
condition = ~(self.attribute < 'bar')
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "(NOT #0 < :0)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}}
@fail_on(unused_loop=False)
def test_compound_logic(self):
condition = (~(self.attribute < 'bar') & (self.attribute > 'baz')) | (self.attribute == 'foo')
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "(((NOT #0 < :0) AND #0 > :1) OR #0 = :2)"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S': 'bar'}, ':1': {'S': 'baz'}, ':2': {'S': 'foo'}}
@fail_on(unused_loop=False)
def test_indexing(self):
condition = ListAttribute(attr_name='foo')[0] == 'bar'
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0[0] = :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S' : 'bar'}}
@fail_on(unused_loop=False)
def test_invalid_indexing(self):
with self.assertRaises(TypeError):
self.attribute[0]
@fail_on(unused_loop=False)
def test_double_indexing(self):
condition = ListAttribute(attr_name='foo')[0][1] == 'bar'
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0[0][1] = :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'S' : 'bar'}}
@fail_on(unused_loop=False)
def test_list_comparison(self):
condition = ListAttribute(attr_name='foo') == ['bar', 'baz']
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 = :0"
assert placeholder_names == {'foo': '#0'}
assert expression_attribute_values == {':0': {'L': [{'S' : 'bar'}, {'S': 'baz'}]}}
@fail_on(unused_loop=False)
def test_dotted_attribute_name(self):
self.attribute.attr_name = 'foo.bar'
condition = self.attribute == 'baz'
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0 = :0"
assert placeholder_names == {'foo.bar': '#0'}
assert expression_attribute_values == {':0': {'S': 'baz'}}
@fail_on(unused_loop=False)
def test_map_attribute_indexing(self):
# Simulate initialization from inside an AttributeContainer
my_map_attribute = MapAttribute(attr_name='foo.bar')
my_map_attribute._make_attribute()
my_map_attribute._update_attribute_paths(my_map_attribute.attr_name)
condition = my_map_attribute['foo'] == 'baz'
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0.#1 = :0"
assert placeholder_names == {'foo.bar': '#0', 'foo': '#1'}
assert expression_attribute_values == {':0': {'S': 'baz'}}
@fail_on(unused_loop=False)
def test_map_attribute_dereference(self):
class MyMapAttribute(MapAttribute):
nested_string = self.attribute
# Simulate initialization from inside an AttributeContainer
my_map_attribute = MyMapAttribute(attr_name='foo.bar')
my_map_attribute._make_attribute()
my_map_attribute._update_attribute_paths(my_map_attribute.attr_name)
condition = my_map_attribute.nested_string == 'baz'
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0.#1 = :0"
assert placeholder_names == {'foo.bar': '#0', 'foo': '#1'}
assert expression_attribute_values == {':0': {'S': 'baz'}}
@fail_on(unused_loop=False)
def test_map_attribute_dereference_via_indexing(self):
class MyMapAttribute(MapAttribute):
nested_string = self.attribute
# Simulate initialization from inside an AttributeContainer
my_map_attribute = MyMapAttribute(attr_name='foo.bar')
my_map_attribute._make_attribute()
my_map_attribute._update_attribute_paths(my_map_attribute.attr_name)
condition = my_map_attribute['nested_string'] == 'baz'
placeholder_names, expression_attribute_values = {}, {}
expression = condition.serialize(placeholder_names, expression_attribute_values)
assert expression == "#0.#1 = :0"
assert placeholder_names == {'foo.bar': '#0', 'foo': '#1'}
assert expression_attribute_values == {':0': {'S': 'baz'}}
@fail_on(unused_loop=False)
def test_map_attribute_dereference_via_indexing_missing_attribute(self):
class MyMapAttribute(MapAttribute):
nested_string = self.attribute
# Simulate initialization from inside an AttributeContainer
my_map_attribute = MyMapAttribute(attr_name='foo.bar')
my_map_attribute._make_attribute()
my_map_attribute._update_attribute_paths(my_map_attribute.attr_name)
with self.assertRaises(AttributeError):
my_map_attribute['missing_attribute'] == 'baz'