def test_record_int_serialization_overflow_value():
r1 = Record(tree_conf, 42, overflow_page=5)
data = r1.dump()
r2 = Record(tree_conf, data=data)
assert r1 == r2
assert r1.value == r2.value
assert r1.overflow_page == r2.overflow_page
def test_record_str_serialization():
tree_conf = TreeConf(4096, 4, 40, 40, StrSerializer())
r1 = Record(tree_conf, '0', b'0')
data = r1.dump()
r2 = Record(tree_conf, data=data)
assert r1 == r2
assert r1.value == r2.value
assert r1.overflow_page == r2.overflow_page
def test_leaf_node_serialization():
n1 = LeafNode(tree_conf, next_page=66)
n1.insert_entry(Record(tree_conf, 42, b'42'))
n1.insert_entry(Record(tree_conf, 43, b'43'))
assert n1.entries == [
Record(tree_conf, 42, b'42'),
Record(tree_conf, 43, b'43'),
]
data = n1.dump()
n2 = Node.from_page_data(tree_conf, data)
assert n2.entries == n1.entries
assert n2.next_page == n1.next_page
def test_record_repr():
r1 = Record(tree_conf, 42, b'foo')
assert repr(r1) == "<Record: 42 value=b'foo'>"
r1.value = None
assert repr(r1) == "<Record: 42 unknown value>"
r1.overflow_page = 5
assert repr(r1) == "<Record: 42 overflowing value>"
r1.value = b'0123456789abcdefDO NOT SHOW'
r1.overflow_page = None
assert repr(r1) == "<Record: 42 value=b'0123456789abcdef'>"
def test_record_slots():
r1 = Record(tree_conf, 42, b'foo')
with pytest.raises(AttributeError):
r1.foo = False
def test_record_either_value_or_overflow_page():
r1 = Record(tree_conf, 42, b'foo')
r1.overflow_page = 10
with pytest.raises(AssertionError):
r1.dump()