Files
python/exercises/practice/variable-length-quantity/variable_length_quantity_test.py
BethanyG e7a6b0dc7d [JinJa2] Corrected the macro used for comments on the test file. (#3373)
* Corrected the macro for comments on the test file.
* Added current_date (utcnow()) variable available for template macros.
* Removed unnecessary datetime import from macros file.
* Regenerated all practice exercise test files to add timestamp.
* Changed `datetime.now(tz=timezone.utc)` to `datetime.now(tz=timezone.utc).date()`
* Second regeneration to remove `timestamp` and just keep `date` for test files.
[no important files changed]
2023-07-14 15:52:15 -07:00

139 lines
4.2 KiB
Python

import unittest
from variable_length_quantity import (
decode,
encode,
)
# These tests are auto-generated with test data from:
# https://github.com/exercism/problem-specifications/tree/main/exercises/variable-length-quantity/canonical-data.json
# File last updated on 2023-07-14
class VariableLengthQuantityTest(unittest.TestCase):
def test_zero(self):
self.assertEqual(encode([0x0]), [0x0])
def test_arbitrary_single_byte(self):
self.assertEqual(encode([0x40]), [0x40])
def test_largest_single_byte(self):
self.assertEqual(encode([0x7F]), [0x7F])
def test_smallest_double_byte(self):
self.assertEqual(encode([0x80]), [0x81, 0x0])
def test_arbitrary_double_byte(self):
self.assertEqual(encode([0x2000]), [0xC0, 0x0])
def test_largest_double_byte(self):
self.assertEqual(encode([0x3FFF]), [0xFF, 0x7F])
def test_smallest_triple_byte(self):
self.assertEqual(encode([0x4000]), [0x81, 0x80, 0x0])
def test_arbitrary_triple_byte(self):
self.assertEqual(encode([0x100000]), [0xC0, 0x80, 0x0])
def test_largest_triple_byte(self):
self.assertEqual(encode([0x1FFFFF]), [0xFF, 0xFF, 0x7F])
def test_smallest_quadruple_byte(self):
self.assertEqual(encode([0x200000]), [0x81, 0x80, 0x80, 0x0])
def test_arbitrary_quadruple_byte(self):
self.assertEqual(encode([0x8000000]), [0xC0, 0x80, 0x80, 0x0])
def test_largest_quadruple_byte(self):
self.assertEqual(encode([0xFFFFFFF]), [0xFF, 0xFF, 0xFF, 0x7F])
def test_smallest_quintuple_byte(self):
self.assertEqual(encode([0x10000000]), [0x81, 0x80, 0x80, 0x80, 0x0])
def test_arbitrary_quintuple_byte(self):
self.assertEqual(encode([0xFF000000]), [0x8F, 0xF8, 0x80, 0x80, 0x0])
def test_maximum_32_bit_integer_input(self):
self.assertEqual(encode([0xFFFFFFFF]), [0x8F, 0xFF, 0xFF, 0xFF, 0x7F])
def test_two_single_byte_values(self):
self.assertEqual(encode([0x40, 0x7F]), [0x40, 0x7F])
def test_two_multi_byte_values(self):
self.assertEqual(
encode([0x4000, 0x123456]), [0x81, 0x80, 0x0, 0xC8, 0xE8, 0x56]
)
def test_many_multi_byte_values(self):
self.assertEqual(
encode([0x2000, 0x123456, 0xFFFFFFF, 0x0, 0x3FFF, 0x4000]),
[
0xC0,
0x0,
0xC8,
0xE8,
0x56,
0xFF,
0xFF,
0xFF,
0x7F,
0x0,
0xFF,
0x7F,
0x81,
0x80,
0x0,
],
)
def test_one_byte(self):
self.assertEqual(decode([0x7F]), [0x7F])
def test_two_bytes(self):
self.assertEqual(decode([0xC0, 0x0]), [0x2000])
def test_three_bytes(self):
self.assertEqual(decode([0xFF, 0xFF, 0x7F]), [0x1FFFFF])
def test_four_bytes(self):
self.assertEqual(decode([0x81, 0x80, 0x80, 0x0]), [0x200000])
def test_maximum_32_bit_integer(self):
self.assertEqual(decode([0x8F, 0xFF, 0xFF, 0xFF, 0x7F]), [0xFFFFFFFF])
def test_incomplete_sequence_causes_error(self):
with self.assertRaises(ValueError) as err:
decode([0xFF])
self.assertEqual(type(err.exception), ValueError)
self.assertEqual(err.exception.args[0], "incomplete sequence")
def test_incomplete_sequence_causes_error_even_if_value_is_zero(self):
with self.assertRaises(ValueError) as err:
decode([0x80])
self.assertEqual(type(err.exception), ValueError)
self.assertEqual(err.exception.args[0], "incomplete sequence")
def test_multiple_values(self):
self.assertEqual(
decode(
[
0xC0,
0x0,
0xC8,
0xE8,
0x56,
0xFF,
0xFF,
0xFF,
0x7F,
0x0,
0xFF,
0x7F,
0x81,
0x80,
0x0,
]
),
[0x2000, 0x123456, 0xFFFFFFF, 0x0, 0x3FFF, 0x4000],
)