44 lines
1 KiB
Python
44 lines
1 KiB
Python
from rbt import RBTree
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import logging
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import pytest
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logger = logging.getLogger(__name__)
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@pytest.mark.parametrize(
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"values, delete_order",
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[
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([0, 1, -1], [0, -1, 1]),
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([0, 1, 2, 3, 4, 5], [4, 2, 1, 0, 5, 3]),
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(
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[32, 1, 2, 3, 4, 5, 0, -2, -4, -3, -1],
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[-4, -3, 1, 2, 5, 3, -2, 4, 32, -1, 0],
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),
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([0, 1, 2, -2, -3, -1], [-3, 2, 1, 0, -1, -2]),
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([0, 1, 2, 3, 4, 5, -1], [4, 2, 1, 0, 5, 3, -1]),
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],
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)
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def test_delete_minimal(values, delete_order):
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tree = RBTree()
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for value in values:
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tree.insert(value)
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for value in delete_order:
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logger.info("Deleting %s", value)
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before = str(tree)
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tree.delete(value)
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after = str(tree)
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try:
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assert tree.is_correct
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except AssertionError:
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logger.info(
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f"[FAIL] Delete {value} from {values} in order {delete_order}"
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)
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logger.info(f"Before:\n{before}")
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logger.info(f"After:\n{after}")
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raise
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