def test_item_size_computation(self):
from ddbmock.database.item import Item
item1 = Item()
item2 = Item(ITEM_TYPE)
# cache init
self.assertIsNone(item1.size)
self.assertIsNone(item2.size)
# compute size
s1 = item1.get_size()
s2 = item2.get_size()
self.assertEqual(0, s1)
self.assertEqual(114, s2)
# check cache
self.assertEqual(s1, item1.size)
self.assertEqual(s2, item2.size)
# any call to "update item" invalidates the cache
item1.apply_actions({})
item2.apply_actions({})
self.assertIsNone(item1.size)
self.assertIsNone(item2.size)
def test_item_unit_computation(self):
# full chain test (~functional)
from ddbmock.database.item import Item
item1 = Item(ITEM_BIG)
item2 = Item(ITEM_TYPE)
self.assertEqual(123, item1.get_size().as_units()) # If I tell you the '123' is not on purpose, you won't believe me, will you ? Especially when Pi is involved
self.assertEqual(1, item2.get_size().as_units())
def test_expected_field_exists_value(self):
from ddbmock.database.item import Item
from ddbmock.errors import ConditionalCheckFailedException
# ok
item = Item({FIELDNAME: VALUE_S})
item.assert_match_expected(
{FIELDNAME: {
'Exists': True,
'Value': VALUE_S
}})
# exitence mismatch
item = Item({})
self.assertRaises(ConditionalCheckFailedException,
item.assert_match_expected,
{FIELDNAME: {
'Exists': True,
'Value': VALUE_S
}})
# type mismatch
item = Item({FIELDNAME: VALUE_S})
self.assertRaises(ConditionalCheckFailedException,
item.assert_match_expected,
{FIELDNAME: {
'Exists': True,
'Value': VALUE_N
}})
def test_item_size_computation(self):
from ddbmock.database.item import Item
item1 = Item()
item2 = Item(ITEM_TYPE)
# cache init
self.assertIsNone(item1.size)
self.assertIsNone(item2.size)
# compute size
s1 = item1.get_size()
s2 = item2.get_size()
self.assertEqual(0, s1)
self.assertEqual(114, s2)
# check cache
self.assertEqual(s1, item1.size)
self.assertEqual(s2, item2.size)
# any call to "update item" invalidates the cache
item1.apply_actions({})
item2.apply_actions({})
self.assertIsNone(item1.size)
self.assertIsNone(item2.size)
def test_expected_field_does_not_exist(self):
from ddbmock.database.item import Item
from ddbmock.errors import ConditionalCheckFailedException
# ok
item = Item({})
item.assert_match_expected({
FIELDNAME: {u'Exists': False}
})
# mismatch
item = Item({FIELDNAME: VALUE_SS})
self.assertRaises(ConditionalCheckFailedException,
item.assert_match_expected,
{FIELDNAME: {u'Exists': False}})
def test_expected_field_exists_value(self):
from ddbmock.database.item import Item
from ddbmock.errors import ConditionalCheckFailedException
# ok
item = Item({FIELDNAME: VALUE_S})
item.assert_match_expected({
FIELDNAME: {'Exists': True, 'Value': VALUE_S}
})
# exitence mismatch
item = Item({})
self.assertRaises(ConditionalCheckFailedException,
item.assert_match_expected,
{FIELDNAME: {'Exists': True, 'Value': VALUE_S}})
# type mismatch
item = Item({FIELDNAME: VALUE_S})
self.assertRaises(ConditionalCheckFailedException,
item.assert_match_expected,
{FIELDNAME: {'Exists': True, 'Value': VALUE_N}})
def test_size_computation(self):
from ddbmock.database.item import Item
item = Item(ITEM_TYPE)
self.assertEqual(0, item.get_field_size(u"toto"))
self.assertEqual(8, item.get_field_size(u"N"))
self.assertEqual(15, item.get_field_size(u"S"))
self.assertEqual(12, item.get_field_size(u"B"))
self.assertEqual(16, item.get_field_size(u"NS"))
self.assertEqual(30, item.get_field_size(u"SS"))
self.assertEqual(24, item.get_field_size(u"BS"))
def test_item_unit_computation(self):
# full chain test (~functional)
from ddbmock.database.item import Item
item1 = Item(ITEM_BIG)
item2 = Item(ITEM_TYPE)
self.assertEqual(
123,
item1.get_size().as_units()
) # If I tell you the '123' is not on purpose, you won't believe me, will you ? Especially when Pi is involved
self.assertEqual(1, item2.get_size().as_units())
def test_size_computation(self):
from ddbmock.database.item import Item
item = Item(ITEM_TYPE)
self.assertEqual(0, item.get_field_size(u"toto"))
self.assertEqual(8, item.get_field_size(u"N"))
self.assertEqual(15, item.get_field_size(u"S"))
self.assertEqual(12, item.get_field_size(u"B"))
self.assertEqual(16, item.get_field_size(u"NS"))
self.assertEqual(30, item.get_field_size(u"SS"))
self.assertEqual(24, item.get_field_size(u"BS"))
def test_expected_field_does_not_exist(self):
from ddbmock.database.item import Item
from ddbmock.errors import ConditionalCheckFailedException
# ok
item = Item({})
item.assert_match_expected({FIELDNAME: {u'Exists': False}})
# mismatch
item = Item({FIELDNAME: VALUE_SS})
self.assertRaises(ConditionalCheckFailedException,
item.assert_match_expected,
{FIELDNAME: {
u'Exists': False
}})
def test_action_put(self):
from ddbmock.database.item import Item
item = Item({})
item._apply_action(FIELDNAME, {"Action": "PUT", "Value": VALUE_S})
self.assertEqual([(FIELDNAME, VALUE_S)], item.items())
def test_action_type_mismatch(self):
from ddbmock.database.item import Item
from ddbmock.errors import ValidationException
# delete from set, set of same type
item = Item({
FIELDNAME: VALUE_SS,
})
self.assertRaises(ValidationException,
item._apply_action,
FIELDNAME, {"Action": "DELETE", "Value": VALUE_S})
self.assertEqual([(FIELDNAME, VALUE_SS)], item.items())
self.assertRaises(ValidationException,
item._apply_action,
FIELDNAME, {"Action": "DELETE", "Value": VALUE_NS})
self.assertEqual([(FIELDNAME, VALUE_SS)], item.items())
# delete value from scalar field (fail)
item = Item({
FIELDNAME: VALUE_S,
})
self.assertRaises(ValidationException,
item._apply_action,
FIELDNAME, {"Action": "DELETE", "Value": VALUE_S})
self.assertEqual([(FIELDNAME, VALUE_S)], item.items())
# add to scalar non number field
item = Item({FIELDNAME: VALUE_S})
self.assertRaises(ValidationException,
item._apply_action,
FIELDNAME, {"Action": "ADD", "Value": VALUE_S})
self.assertEqual([(FIELDNAME, VALUE_S)], item.items())
# add to set of different type
item = Item({FIELDNAME: VALUE_SS})
self.assertRaises(ValidationException,
item._apply_action,
FIELDNAME, {"Action": "ADD", "Value": VALUE_NS})
self.assertEqual([(FIELDNAME, VALUE_SS)], item.items())
# add non number to non existing field
item = Item({})
self.assertRaises(ValidationException,
item._apply_action,
FIELDNAME, {"Action": "ADD", "Value": VALUE_S})
self.assertEqual([], item.items())
def test_action_add(self):
from ddbmock.database.item import Item
# add value to int field
item = Item({FIELDNAME: VALUE_N})
item._apply_action(FIELDNAME, {"Action": "ADD", "Value": VALUE_N})
self.assertEqual([(FIELDNAME, VALUE_N_X2)], item.items())
# push value to any set
item = Item({FIELDNAME: VALUE_SS})
item._apply_action(FIELDNAME, {"Action": "ADD", "Value": VALUE_SS_DEL})
self.assertEqual([(FIELDNAME, VALUE_SS_RES)], item.items())
# field does not exist
item = Item({})
item._apply_action(FIELDNAME, {"Action": "ADD", "Value": VALUE_NS})
self.assertEqual([(FIELDNAME, VALUE_NS)], item.items())
def test_action_delete(self):
from ddbmock.database.item import Item
# field does not exist (just ignores)
item = Item({})
item._apply_action(FIELDNAME, {"Action": "DELETE", "Value": VALUE_S})
self.assertEqual([], item.items())
# delete scalar value
item = Item({
FIELDNAME: VALUE_S,
})
item._apply_action(FIELDNAME, {"Action": "DELETE"})
self.assertEqual([], item.items())
# delete set from set
item = Item({
FIELDNAME: VALUE_SS,
})
item._apply_action(FIELDNAME, {"Action": "DELETE", "Value": VALUE_SS_DEL})
self.assertEqual([(FIELDNAME, VALUE_SS_SUR)], item.items())
# delete set all from set
item = Item({
FIELDNAME: VALUE_SS,
})
item._apply_action(FIELDNAME, {"Action": "DELETE", "Value": VALUE_SS})
self.assertEqual([], item.items())
def test_action_put(self):
from ddbmock.database.item import Item
item = Item({})
item._apply_action(FIELDNAME, {"Action": "PUT", "Value": VALUE_S})
self.assertEqual([(FIELDNAME, VALUE_S)], item.items())
def test_action_delete(self):
from ddbmock.database.item import Item
# field does not exist (just ignores)
item = Item({})
item._apply_action(FIELDNAME, {"Action": "DELETE", "Value": VALUE_S})
self.assertEqual([], item.items())
# delete scalar value
item = Item({
FIELDNAME: VALUE_S,
})
item._apply_action(FIELDNAME, {"Action": "DELETE"})
self.assertEqual([], item.items())
# delete set from set
item = Item({
FIELDNAME: VALUE_SS,
})
item._apply_action(FIELDNAME, {
"Action": "DELETE",
"Value": VALUE_SS_DEL
})
self.assertEqual([(FIELDNAME, VALUE_SS_SUR)], item.items())
# delete set all from set
item = Item({
FIELDNAME: VALUE_SS,
})
item._apply_action(FIELDNAME, {"Action": "DELETE", "Value": VALUE_SS})
self.assertEqual([], item.items())
def test_action_add(self):
from ddbmock.database.item import Item
# add value to int field
item = Item({FIELDNAME: VALUE_N})
item._apply_action(FIELDNAME, {"Action": "ADD", "Value": VALUE_N})
self.assertEqual([(FIELDNAME, VALUE_N_X2)], item.items())
# push value to any set
item = Item({FIELDNAME: VALUE_SS})
item._apply_action(FIELDNAME, {"Action": "ADD", "Value": VALUE_SS_DEL})
self.assertEqual([(FIELDNAME, VALUE_SS_RES)], item.items())
# field does not exist
item = Item({})
item._apply_action(FIELDNAME, {"Action": "ADD", "Value": VALUE_NS})
self.assertEqual([(FIELDNAME, VALUE_NS)], item.items())
# add string set to non existing field
item = Item({})
item._apply_action(FIELDNAME, {"Action": "ADD", "Value": VALUE_SS})
self.assertEqual([(FIELDNAME, VALUE_SS)], item.items())
def test_action_type_mismatch(self):
from ddbmock.database.item import Item
from ddbmock.errors import ValidationException
# delete from set, set of same type
item = Item({
FIELDNAME: VALUE_SS,
})
self.assertRaises(ValidationException, item._apply_action, FIELDNAME, {
"Action": "DELETE",
"Value": VALUE_S
})
self.assertEqual([(FIELDNAME, VALUE_SS)], item.items())
self.assertRaises(ValidationException, item._apply_action, FIELDNAME, {
"Action": "DELETE",
"Value": VALUE_NS
})
self.assertEqual([(FIELDNAME, VALUE_SS)], item.items())
# delete value from scalar field (fail)
item = Item({
FIELDNAME: VALUE_S,
})
self.assertRaises(ValidationException, item._apply_action, FIELDNAME, {
"Action": "DELETE",
"Value": VALUE_S
})
self.assertEqual([(FIELDNAME, VALUE_S)], item.items())
# add to scalar non number field
item = Item({FIELDNAME: VALUE_S})
self.assertRaises(ValidationException, item._apply_action, FIELDNAME, {
"Action": "ADD",
"Value": VALUE_S
})
self.assertEqual([(FIELDNAME, VALUE_S)], item.items())
# add to set of different type
item = Item({FIELDNAME: VALUE_SS})
self.assertRaises(ValidationException, item._apply_action, FIELDNAME, {
"Action": "ADD",
"Value": VALUE_NS
})
self.assertEqual([(FIELDNAME, VALUE_SS)], item.items())
# add non number to non existing field
item = Item({})
self.assertRaises(ValidationException, item._apply_action, FIELDNAME, {
"Action": "ADD",
"Value": VALUE_S
})
self.assertEqual([], item.items())