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# Copyright (c) 2023, Manfred Moitzi
# License: MIT License
import pytest
from ezdxf.addons.hpgl2.tokenizer import pe_encode, pe_decode, fractional_bits
class TestPolylineEncoding:
def test_8_bit(self):
s = pe_encode(10525)
assert s[0] == 121
assert s[1] == 71
assert s[2] == 196
def test_7_bit(self):
s = pe_encode(10525, base=32)
assert s[0] == 89
assert s[1] == 80
assert s[2] == 115
class TestPolylineDecoding:
def test_8_bit(self):
s = pe_encode(10525) + pe_encode(-10525)
values, index = list(pe_decode(s))
assert values[0] == 10525
assert values[1] == -10525
assert index == len(s)
def test_7_bit(self):
s = pe_encode(10525, base=32) + pe_encode(-10525, base=32)
values, index = pe_decode(s, base=32)
assert values[0] == 10525
assert values[1] == -10525
assert index == len(s)
def test_8_bit_float(self):
n = fractional_bits(3)
s = pe_encode(10.525, frac_bits=n) + pe_encode(-10.525, frac_bits=n)
values, index = list(pe_decode(s, frac_bits=n))
assert round(values[0], 3) == 10.525
assert round(values[1], 3) == -10.525
assert index == len(s)
if __name__ == "__main__":
pytest.main([__file__])
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