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79 lines
3.9 KiB
Python
79 lines
3.9 KiB
Python
import pytest
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from supervision.geometry.core import Point, Position, Vector
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def test_position_list_returns_enum_values_in_definition_order() -> None:
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"""Position.list returns stable string values for public option lists."""
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assert Position.list() == [position.value for position in Position]
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@pytest.mark.parametrize(
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("vector", "point", "expected_result"),
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[
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(Vector(start=Point(x=0, y=0), end=Point(x=5, y=5)), Point(x=-1, y=1), 10.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=5, y=5)), Point(x=6, y=6), 0.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=5, y=5)), Point(x=3, y=6), 15.0),
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(Vector(start=Point(x=5, y=5), end=Point(x=0, y=0)), Point(x=-1, y=1), -10.0),
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(Vector(start=Point(x=5, y=5), end=Point(x=0, y=0)), Point(x=6, y=6), 0.0),
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(Vector(start=Point(x=5, y=5), end=Point(x=0, y=0)), Point(x=3, y=6), -15.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=1, y=0)), Point(x=0, y=0), 0.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=1, y=0)), Point(x=0, y=-1), -1.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=1, y=0)), Point(x=0, y=1), 1.0),
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(Vector(start=Point(x=1, y=0), end=Point(x=0, y=0)), Point(x=0, y=0), 0.0),
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(Vector(start=Point(x=1, y=0), end=Point(x=0, y=0)), Point(x=0, y=-1), 1.0),
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(Vector(start=Point(x=1, y=0), end=Point(x=0, y=0)), Point(x=0, y=1), -1.0),
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(Vector(start=Point(x=1, y=1), end=Point(x=1, y=3)), Point(x=0, y=0), 2.0),
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(Vector(start=Point(x=1, y=1), end=Point(x=1, y=3)), Point(x=1, y=4), 0.0),
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(Vector(start=Point(x=1, y=1), end=Point(x=1, y=3)), Point(x=2, y=4), -2.0),
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(Vector(start=Point(x=1, y=3), end=Point(x=1, y=1)), Point(x=0, y=0), -2.0),
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(Vector(start=Point(x=1, y=3), end=Point(x=1, y=1)), Point(x=1, y=4), 0.0),
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(Vector(start=Point(x=1, y=3), end=Point(x=1, y=1)), Point(x=2, y=4), 2.0),
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],
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)
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def test_vector_cross_product(
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vector: Vector, point: Point, expected_result: float
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) -> None:
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"""
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Verify that Vector.cross_product correctly calculates the scalar value.
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Scenario: Computing the cross product between a vector and a point.
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Expected: Correct scalar value is returned, which is used to determine which side
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of a line a point lies on (essential for line crossing counting).
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"""
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result = vector.cross_product(point=point)
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assert result == expected_result
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@pytest.mark.parametrize(
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("vector", "expected_result"),
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[
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(Vector(start=Point(x=0, y=0), end=Point(x=0, y=0)), 0.0),
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(Vector(start=Point(x=1, y=0), end=Point(x=0, y=0)), 1.0),
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(Vector(start=Point(x=0, y=1), end=Point(x=0, y=0)), 1.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=1, y=0)), 1.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=0, y=1)), 1.0),
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(Vector(start=Point(x=-1, y=0), end=Point(x=0, y=0)), 1.0),
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(Vector(start=Point(x=0, y=-1), end=Point(x=0, y=0)), 1.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=-1, y=0)), 1.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=0, y=-1)), 1.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=3, y=4)), 5.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=-3, y=4)), 5.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=3, y=-4)), 5.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=-3, y=-4)), 5.0),
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(Vector(start=Point(x=0, y=0), end=Point(x=4, y=3)), 5.0),
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(Vector(start=Point(x=3, y=4), end=Point(x=0, y=0)), 5.0),
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(Vector(start=Point(x=4, y=3), end=Point(x=0, y=0)), 5.0),
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],
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)
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def test_vector_magnitude(vector: Vector, expected_result: float) -> None:
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"""
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Verify that Vector.magnitude correctly calculates Euclidean distance.
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Scenario: Calculating the magnitude (length) of a vector.
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Expected: Correct Euclidean distance between start and end points is returned,
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fundamental for various spatial calculations.
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"""
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result = vector.magnitude
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assert result == expected_result
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