def test_23bit_file_offset_too_small(self):
trie = Trie()
# The high bit of the child offset stores a lookahead barrier, so the
# file has to be smaller than 8M, not 16. Python has a recursion limit
# of 1000, so we can't really insert a 8M character long string.
# Instead, insert one 130-character string where each char has 32k
# 16bit result IDs. 129 isn't enough to overflow the offsets.
results_32k = [j for j in range(32767)]
for i in range(130):
trie.insert('a' * i, results_32k)
with self.assertRaisesRegex(
OverflowError,
"Trie child offset too large to store in 23 bits, set SEARCH_FILE_OFFSET_BYTES = 4 in your conf.py."
):
trie.serialize(
Serializer(file_offset_bytes=3,
result_id_bytes=2,
name_size_bytes=1))
# This should work
trie.serialize(
Serializer(file_offset_bytes=4,
result_id_bytes=2,
name_size_bytes=1))
def test_16bit_result_count(self):
trie = Trie()
for i in range(128):
trie.insert("__init__", i)
# It's __init_subclass__ (one underscore, not two), but here I want to
# trigger the case of both a high amount of results and some children
# as well.
for i in [203, 215, 267]:
trie.insert("__init__subclass__", i)
for i in trie_type_sizes:
with self.subTest(**i):
serialized = trie.serialize(Serializer(**i))
self.compare(
Deserializer(**i), serialized, """
__init__ [{}]
subclass__ [203, 215, 267]
""".format(', '.join([str(i) for i in range(128)])))
# Verify just the smallest and largest size, everything else
# should fit in between
if i['file_offset_bytes'] == 3 and i['result_id_bytes'] == 2:
self.assertEqual(len(serialized), 377)
elif i['file_offset_bytes'] == 4 and i['result_id_bytes'] == 4:
self.assertEqual(len(serialized), 657)
else:
self.assertGreater(len(serialized), 377)
self.assertLess(len(serialized), 657)
def test_unicode(self):
trie = Trie()
trie.insert("hýždě", 0)
trie.insert("hárá", 1)
serialized = trie.serialize(
Serializer(file_offset_bytes=3,
result_id_bytes=2,
name_size_bytes=1))
self.compare(
Deserializer(file_offset_bytes=3,
result_id_bytes=2,
name_size_bytes=1), serialized, """
h0xc3
0xbd
0xc5
| 0xbe
| d0xc4
| 0x9b
| [0]
0xa1
r0xc3
| 0xa1
| [1]
""")
self.assertEqual(len(serialized), 82)
def test_empty(self):
trie = Trie()
for i in trie_type_sizes:
with self.subTest(**i):
serialized = trie.serialize(Serializer(**i))
self.compare(Deserializer(**i), serialized, "")
self.assertEqual(len(serialized), 6)
def test_24bit_result_id_too_small(self):
trie = Trie()
trie.insert("a", 16 * 1024 * 1024)
with self.assertRaisesRegex(
OverflowError,
"Trie result ID too large to store in 24 bits, set SEARCH_RESULT_ID_BYTES = 4 in your conf.py."
):
trie.serialize(
Serializer(file_offset_bytes=3,
result_id_bytes=3,
name_size_bytes=1))
# This should work
trie.serialize(
Serializer(file_offset_bytes=3,
result_id_bytes=4,
name_size_bytes=1))
def test_single(self):
trie = Trie()
trie.insert("magnum", 1337)
trie.insert("magnum", 21)
serialized = trie.serialize()
self.compare(serialized, """
magnum [1337, 21]
""")
self.assertEqual(len(serialized), 46)
def test_single(self):
trie = Trie()
trie.insert("magnum", 1337)
trie.insert("magnum", 21)
for i in trie_type_sizes:
with self.subTest(**i):
serialized = trie.serialize(Serializer(**i))
self.compare(Deserializer(**i), serialized, """
magnum [1337, 21]
""")
# Verify just the smallest and largest size, everything else
# should fit in between
if i['file_offset_bytes'] == 3 and i['result_id_bytes'] == 2:
self.assertEqual(len(serialized), 46)
elif i['file_offset_bytes'] == 4 and i['result_id_bytes'] == 4:
self.assertEqual(len(serialized), 56)
else:
self.assertGreater(len(serialized), 46)
self.assertLess(len(serialized), 56)
def test_unicode(self):
trie = Trie()
trie.insert("hýždě", 0)
trie.insert("hárá", 1)
serialized = trie.serialize()
self.compare(
serialized, """
h0xc3
0xbd
0xc5
| 0xbe
| d0xc4
| 0x9b
| [0]
0xa1
r0xc3
| 0xa1
| [1]
""")
self.assertEqual(len(serialized), 82)
def test_multiple(self):
trie = Trie()
trie.insert("math", 0)
trie.insert("math::vector", 1, lookahead_barriers=[4])
trie.insert("vector", 1)
trie.insert("math::range", 2)
trie.insert("range", 2)
trie.insert("math::min", 3)
trie.insert("min", 3)
trie.insert("math::max", 4)
trie.insert("max", 4)
trie.insert("math::minmax", 5)
trie.insert("minmax", 5)
trie.insert("math::vector::minmax", 6, lookahead_barriers=[4, 12])
trie.insert("vector::minmax", 6, lookahead_barriers=[6])
trie.insert("minmax", 6)
trie.insert("math::vector::min", 7)
trie.insert("vector::min", 7)
trie.insert("min", 7)
trie.insert("math::vector::max", 8)
trie.insert("vector::max", 8)
trie.insert("max", 8)
trie.insert("math::range::min", 9, lookahead_barriers=[4, 11])
trie.insert("range::min", 9, lookahead_barriers=[5])
trie.insert("min", 9)
trie.insert("math::range::max", 10)
trie.insert("range::max", 10)
trie.insert("max", 10)
serialized = trie.serialize()
self.compare(
serialized, """
math [0]
||| :$
||| :vector [1]
||| | :$
||| | :min [7]
||| | | max [6]
||| | ax [8]
||| range [2]
||| | :$
||| | :min [9]
||| | ax [10]
||| min [3]
||| || max [5]
||| |ax [4]
||x [4, 8, 10]
|in [3, 7, 9]
|| max [5, 6]
vector [1]
| :$
| :min [7]
| | max [6]
| ax [8]
range [2]
| :$
| :min [9]
| ax [10]
""")
self.assertEqual(len(serialized), 340)
def test_empty(self):
trie = Trie()
serialized = trie.serialize()
self.compare(serialized, "")
self.assertEqual(len(serialized), 6)
def test_multiple(self):
trie = Trie()
trie.insert("math", 0)
trie.insert("math::vector", 1, lookahead_barriers=[4])
trie.insert("vector", 1)
trie.insert("math::range", 2)
trie.insert("range", 2)
trie.insert("math::min", 3)
trie.insert("min", 3)
trie.insert("math::max", 4)
trie.insert("max", 4)
trie.insert("math::minmax", 5)
trie.insert("minmax", 5)
trie.insert("math::vector::minmax", 6, lookahead_barriers=[4, 12])
trie.insert("vector::minmax", 6, lookahead_barriers=[6])
trie.insert("minmax", 6)
trie.insert("math::vector::min", 7)
trie.insert("vector::min", 7)
trie.insert("min", 7)
trie.insert("math::vector::max", 8)
trie.insert("vector::max", 8)
trie.insert("max", 8)
trie.insert("math::range::min", 9, lookahead_barriers=[4, 11])
trie.insert("range::min", 9, lookahead_barriers=[5])
trie.insert("min", 9)
trie.insert("math::range::max", 10)
trie.insert("range::max", 10)
trie.insert("max", 10)
for i in trie_type_sizes:
with self.subTest(**i):
serialized = trie.serialize(Serializer(**i))
self.compare(
Deserializer(**i), serialized, """
math [0]
||| :$
||| :vector [1]
||| | :$
||| | :min [7]
||| | | max [6]
||| | ax [8]
||| range [2]
||| | :$
||| | :min [9]
||| | ax [10]
||| min [3]
||| || max [5]
||| |ax [4]
||x [4, 8, 10]
|in [3, 7, 9]
|| max [5, 6]
vector [1]
| :$
| :min [7]
| | max [6]
| ax [8]
range [2]
| :$
| :min [9]
| ax [10]
""")
# Verify just the smallest and largest size, everything else
# should fit in between
if i['file_offset_bytes'] == 3 and i['result_id_bytes'] == 2:
self.assertEqual(len(serialized), 340)
elif i['file_offset_bytes'] == 4 and i['result_id_bytes'] == 4:
self.assertEqual(len(serialized), 428)
else:
self.assertGreater(len(serialized), 340)
self.assertLess(len(serialized), 428)