aa3e379ff1
* Additional sweep to update Python versions and supported Python versions. * Fixed requirements and CONTRIBUTING. * Trying a different line skip to see if it fixes CI. CI is failing on test file generation again. * Once again re-rendering tests to see if it fixes CI. [no important files changed]
139 lines
4.2 KiB
Python
139 lines
4.2 KiB
Python
# These tests are auto-generated with test data from:
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# https://github.com/exercism/problem-specifications/tree/main/exercises/variable-length-quantity/canonical-data.json
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# File last updated on 2023-07-16
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import unittest
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from variable_length_quantity import (
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decode,
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encode,
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)
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class VariableLengthQuantityTest(unittest.TestCase):
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def test_zero(self):
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self.assertEqual(encode([0x0]), [0x0])
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def test_arbitrary_single_byte(self):
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self.assertEqual(encode([0x40]), [0x40])
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def test_largest_single_byte(self):
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self.assertEqual(encode([0x7F]), [0x7F])
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def test_smallest_double_byte(self):
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self.assertEqual(encode([0x80]), [0x81, 0x0])
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def test_arbitrary_double_byte(self):
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self.assertEqual(encode([0x2000]), [0xC0, 0x0])
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def test_largest_double_byte(self):
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self.assertEqual(encode([0x3FFF]), [0xFF, 0x7F])
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def test_smallest_triple_byte(self):
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self.assertEqual(encode([0x4000]), [0x81, 0x80, 0x0])
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def test_arbitrary_triple_byte(self):
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self.assertEqual(encode([0x100000]), [0xC0, 0x80, 0x0])
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def test_largest_triple_byte(self):
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self.assertEqual(encode([0x1FFFFF]), [0xFF, 0xFF, 0x7F])
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def test_smallest_quadruple_byte(self):
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self.assertEqual(encode([0x200000]), [0x81, 0x80, 0x80, 0x0])
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def test_arbitrary_quadruple_byte(self):
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self.assertEqual(encode([0x8000000]), [0xC0, 0x80, 0x80, 0x0])
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def test_largest_quadruple_byte(self):
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self.assertEqual(encode([0xFFFFFFF]), [0xFF, 0xFF, 0xFF, 0x7F])
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def test_smallest_quintuple_byte(self):
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self.assertEqual(encode([0x10000000]), [0x81, 0x80, 0x80, 0x80, 0x0])
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def test_arbitrary_quintuple_byte(self):
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self.assertEqual(encode([0xFF000000]), [0x8F, 0xF8, 0x80, 0x80, 0x0])
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def test_maximum_32_bit_integer_input(self):
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self.assertEqual(encode([0xFFFFFFFF]), [0x8F, 0xFF, 0xFF, 0xFF, 0x7F])
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def test_two_single_byte_values(self):
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self.assertEqual(encode([0x40, 0x7F]), [0x40, 0x7F])
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def test_two_multi_byte_values(self):
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self.assertEqual(
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encode([0x4000, 0x123456]), [0x81, 0x80, 0x0, 0xC8, 0xE8, 0x56]
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)
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def test_many_multi_byte_values(self):
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self.assertEqual(
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encode([0x2000, 0x123456, 0xFFFFFFF, 0x0, 0x3FFF, 0x4000]),
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[
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0xC0,
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0x0,
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0xC8,
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0xE8,
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0x56,
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0xFF,
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0xFF,
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0xFF,
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0x7F,
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0x0,
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0xFF,
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0x7F,
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0x81,
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0x80,
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0x0,
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],
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)
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def test_one_byte(self):
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self.assertEqual(decode([0x7F]), [0x7F])
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def test_two_bytes(self):
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self.assertEqual(decode([0xC0, 0x0]), [0x2000])
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def test_three_bytes(self):
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self.assertEqual(decode([0xFF, 0xFF, 0x7F]), [0x1FFFFF])
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def test_four_bytes(self):
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self.assertEqual(decode([0x81, 0x80, 0x80, 0x0]), [0x200000])
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def test_maximum_32_bit_integer(self):
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self.assertEqual(decode([0x8F, 0xFF, 0xFF, 0xFF, 0x7F]), [0xFFFFFFFF])
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def test_incomplete_sequence_causes_error(self):
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with self.assertRaises(ValueError) as err:
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decode([0xFF])
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self.assertEqual(type(err.exception), ValueError)
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self.assertEqual(err.exception.args[0], "incomplete sequence")
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def test_incomplete_sequence_causes_error_even_if_value_is_zero(self):
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with self.assertRaises(ValueError) as err:
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decode([0x80])
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self.assertEqual(type(err.exception), ValueError)
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self.assertEqual(err.exception.args[0], "incomplete sequence")
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def test_multiple_values(self):
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self.assertEqual(
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decode(
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[
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0xC0,
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0x0,
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0xC8,
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0xE8,
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0x56,
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0xFF,
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0xFF,
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0xFF,
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0x7F,
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0x0,
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0xFF,
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0x7F,
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0x81,
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0x80,
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0x0,
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]
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),
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[0x2000, 0x123456, 0xFFFFFFF, 0x0, 0x3FFF, 0x4000],
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)
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