be794198e1
* Corrected small typos around resistor bands. * Due to failing CI, alterations to the test generator script were needed. The generated vs submitted diff now skips the first three lines of the file so that the generation date is not picked up and flagged as needing regeneration. Sadly, a workaround was also needed to prevent Python difflib from noting the difference anyways and producing an empty "false positive" diff. All templates and test files also needed to be altered to ensure that the first three lines of every test file will always be the autogeneration comment and date. Hopefully, this will now stop the CI failures without creating any subtle additional bugs. * Touch up to bowling template. Added back the error raising utility. * Touch up to two-bucket template to add back in error raising utility. [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 2023-07-19
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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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