mirror of
https://git.quad4.io/RNS-Things/MeshChatX.git
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Ivan
47 lines
1.3 KiB
Python
47 lines
1.3 KiB
Python
# SPDX-License-Identifier: 0BSD
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"""Property tests for hex colour parsing."""
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import pytest
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from hypothesis import given, settings
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from hypothesis import strategies as st
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from meshchatx.src.backend.colour_utils import ColourUtils
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@settings(max_examples=200, deadline=None)
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@given(t=st.text(max_size=200))
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def test_hex_colour_only_value_error_or_returns_bytes(t):
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try:
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out = ColourUtils.hex_colour_to_byte_array(t)
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except ValueError:
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return
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except Exception as e:
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raise AssertionError(f"unexpected exception: {type(e).__name__}: {e}") from e
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assert isinstance(out, bytes)
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@settings(max_examples=150, deadline=None)
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@given(
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h=st.from_regex(r"[0-9a-fA-F]{2,64}", fullmatch=True).filter(
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lambda x: len(x) % 2 == 0
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)
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)
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def test_hex_colour_even_length_hex_round_trip(h):
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out = ColourUtils.hex_colour_to_byte_array(h)
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out_hash = ColourUtils.hex_colour_to_byte_array("#" + h)
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assert out == out_hash
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assert len(out) == len(h) // 2
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@settings(max_examples=80, deadline=None)
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@given(
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h=st.from_regex(r"[0-9a-fA-F]{1,63}", fullmatch=True).filter(
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lambda x: len(x) % 2 == 1
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)
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)
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def test_hex_colour_odd_length_raises(h):
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with pytest.raises(ValueError):
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ColourUtils.hex_colour_to_byte_array(h)
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