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#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import unicode_literals
import mmap
import sys
from maxminddb.compat import byte_from_int, int_from_byte
from maxminddb.decoder import Decoder
if sys.version_info[:2] == (2, 6):
import unittest2 as unittest
else:
import unittest
if sys.version_info[0] == 2:
unittest.TestCase.assertRaisesRegex = unittest.TestCase.assertRaisesRegexp
unittest.TestCase.assertRegex = unittest.TestCase.assertRegexpMatches
class TestDecoder(unittest.TestCase):
def test_arrays(self):
arrays = {
b'\x00\x04': [],
b'\x01\x04\x43\x46\x6f\x6f': ['Foo'],
b'\x02\x04\x43\x46\x6f\x6f\x43\xe4\xba\xba': ['Foo', '人'],
}
self.validate_type_decoding('arrays', arrays)
def test_boolean(self):
booleans = {
b"\x00\x07": False,
b"\x01\x07": True,
}
self.validate_type_decoding('booleans', booleans)
def test_double(self):
doubles = {
b"\x68\x00\x00\x00\x00\x00\x00\x00\x00": 0.0,
b"\x68\x3F\xE0\x00\x00\x00\x00\x00\x00": 0.5,
b"\x68\x40\x09\x21\xFB\x54\x44\x2E\xEA": 3.14159265359,
b"\x68\x40\x5E\xC0\x00\x00\x00\x00\x00": 123.0,
b"\x68\x41\xD0\x00\x00\x00\x07\xF8\xF4": 1073741824.12457,
b"\x68\xBF\xE0\x00\x00\x00\x00\x00\x00": -0.5,
b"\x68\xC0\x09\x21\xFB\x54\x44\x2E\xEA": -3.14159265359,
b"\x68\xC1\xD0\x00\x00\x00\x07\xF8\xF4": -1073741824.12457,
}
self.validate_type_decoding('double', doubles)
def test_float(self):
floats = {
b"\x04\x08\x00\x00\x00\x00": 0.0,
b"\x04\x08\x3F\x80\x00\x00": 1.0,
b"\x04\x08\x3F\x8C\xCC\xCD": 1.1,
b"\x04\x08\x40\x48\xF5\xC3": 3.14,
b"\x04\x08\x46\x1C\x3F\xF6": 9999.99,
b"\x04\x08\xBF\x80\x00\x00": -1.0,
b"\x04\x08\xBF\x8C\xCC\xCD": -1.1,
b"\x04\x08\xC0\x48\xF5\xC3": -3.14,
b"\x04\x08\xC6\x1C\x3F\xF6": -9999.99
}
self.validate_type_decoding('float', floats)
def test_int32(self):
int32 = {
b"\x00\x01": 0,
b"\x04\x01\xff\xff\xff\xff": -1,
b"\x01\x01\xff": 255,
b"\x04\x01\xff\xff\xff\x01": -255,
b"\x02\x01\x01\xf4": 500,
b"\x04\x01\xff\xff\xfe\x0c": -500,
b"\x02\x01\xff\xff": 65535,
b"\x04\x01\xff\xff\x00\x01": -65535,
b"\x03\x01\xff\xff\xff": 16777215,
b"\x04\x01\xff\x00\x00\x01": -16777215,
b"\x04\x01\x7f\xff\xff\xff": 2147483647,
b"\x04\x01\x80\x00\x00\x01": -2147483647,
}
self.validate_type_decoding('int32', int32)
def test_map(self):
maps = {
b'\xe0': {},
b'\xe1\x42\x65\x6e\x43\x46\x6f\x6f': {
'en': 'Foo'
},
b'\xe2\x42\x65\x6e\x43\x46\x6f\x6f\x42\x7a\x68\x43\xe4\xba\xba': {
'en': 'Foo',
'zh': '人'
},
(b'\xe1\x44\x6e\x61\x6d\x65\xe2\x42\x65\x6e'
b'\x43\x46\x6f\x6f\x42\x7a\x68\x43\xe4\xba\xba'): {
'name': {
'en': 'Foo',
'zh': '人'
}
},
(b'\xe1\x49\x6c\x61\x6e\x67\x75\x61\x67\x65\x73'
b'\x02\x04\x42\x65\x6e\x42\x7a\x68'): {
'languages': ['en', 'zh']
},
}
self.validate_type_decoding('maps', maps)
def test_pointer(self):
pointers = {
b'\x20\x00': 0,
b'\x20\x05': 5,
b'\x20\x0a': 10,
b'\x23\xff': 1023,
b'\x28\x03\xc9': 3017,
b'\x2f\xf7\xfb': 524283,
b'\x2f\xff\xff': 526335,
b'\x37\xf7\xf7\xfe': 134217726,
b'\x37\xff\xff\xff': 134744063,
b'\x38\x7f\xff\xff\xff': 2147483647,
b'\x38\xff\xff\xff\xff': 4294967295,
}
self.validate_type_decoding('pointers', pointers)
strings = {
b"\x40": '',
b"\x41\x31": '1',
b"\x43\xE4\xBA\xBA": '人',
(b"\x5b\x31\x32\x33\x34"
b"\x35\x36\x37\x38\x39\x30\x31\x32\x33\x34\x35"
b"\x36\x37\x38\x39\x30\x31\x32\x33\x34\x35\x36\x37"):
'123456789012345678901234567',
(b"\x5c\x31\x32\x33\x34"
b"\x35\x36\x37\x38\x39\x30\x31\x32\x33\x34\x35"
b"\x36\x37\x38\x39\x30\x31\x32\x33\x34\x35\x36"
b"\x37\x38"): '1234567890123456789012345678',
(b"\x5d\x00\x31\x32\x33"
b"\x34\x35\x36\x37\x38\x39\x30\x31\x32\x33\x34"
b"\x35\x36\x37\x38\x39\x30\x31\x32\x33\x34\x35"
b"\x36\x37\x38\x39"): '12345678901234567890123456789',
(b"\x5d\x01\x31\x32\x33"
b"\x34\x35\x36\x37\x38\x39\x30\x31\x32\x33\x34"
b"\x35\x36\x37\x38\x39\x30\x31\x32\x33\x34\x35"
b"\x36\x37\x38\x39\x30"): '123456789012345678901234567890',
b'\x5e\x00\xd7' + 500 * b'\x78': 'x' * 500,
b'\x5e\x06\xb3' + 2000 * b'\x78': 'x' * 2000,
b'\x5f\x00\x10\x53' + 70000 * b'\x78': 'x' * 70000,
}
def test_string(self):
self.validate_type_decoding('string', self.strings)
def test_byte(self):
# Python 2.6 doesn't support dictionary comprehension
b = dict((byte_from_int(0xc0 ^ int_from_byte(k[0])) + k[1:],
v.encode('utf-8')) for k, v in self.strings.items())
self.validate_type_decoding('byte', b)
def test_uint16(self):
uint16 = {
b"\xa0": 0,
b"\xa1\xff": 255,
b"\xa2\x01\xf4": 500,
b"\xa2\x2a\x78": 10872,
b"\xa2\xff\xff": 65535,
}
self.validate_type_decoding('uint16', uint16)
def test_uint32(self):
uint32 = {
b"\xc0": 0,
b"\xc1\xff": 255,
b"\xc2\x01\xf4": 500,
b"\xc2\x2a\x78": 10872,
b"\xc2\xff\xff": 65535,
b"\xc3\xff\xff\xff": 16777215,
b"\xc4\xff\xff\xff\xff": 4294967295,
}
self.validate_type_decoding('uint32', uint32)
def generate_large_uint(self, bits):
ctrl_byte = b'\x02' if bits == 64 else b'\x03'
uints = {
b'\x00' + ctrl_byte: 0,
b'\x02' + ctrl_byte + b'\x01\xf4': 500,
b'\x02' + ctrl_byte + b'\x2a\x78': 10872,
}
for power in range(bits // 8 + 1):
expected = 2**(8 * power) - 1
input = byte_from_int(power) + ctrl_byte + (b'\xff' * power)
uints[input] = expected
return uints
def test_uint64(self):
self.validate_type_decoding('uint64', self.generate_large_uint(64))
def test_uint128(self):
self.validate_type_decoding('uint128', self.generate_large_uint(128))
def validate_type_decoding(self, type, tests):
for input, expected in tests.items():
self.check_decoding(type, input, expected)
def check_decoding(self, type, input, expected, name=None):
name = name or expected
db = mmap.mmap(-1, len(input))
db.write(input)
decoder = Decoder(db, pointer_test=True)
(
actual,
_, ) = decoder.decode(0)
if type in ('float', 'double'):
self.assertAlmostEqual(expected, actual, places=3, msg=type)
else:
self.assertEqual(expected, actual, type)
def test_real_pointers(self):
with open('tests/data/test-data/maps-with-pointers.raw',
'r+b') as db_file:
mm = mmap.mmap(db_file.fileno(), 0)
decoder = Decoder(mm, 0)
self.assertEqual(({
'long_key': 'long_value1'
}, 22), decoder.decode(0))
self.assertEqual(({
'long_key': 'long_value2'
}, 37), decoder.decode(22))
self.assertEqual(({
'long_key2': 'long_value1'
}, 50), decoder.decode(37))
self.assertEqual(({
'long_key2': 'long_value2'
}, 55), decoder.decode(50))
self.assertEqual(({
'long_key': 'long_value1'
}, 57), decoder.decode(55))
self.assertEqual(({
'long_key2': 'long_value2'
}, 59), decoder.decode(57))
mm.close()
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