import pytest
from compute import project_perspective


def test_project_perspective_default():
    # Arrange
    point = (100.0, 100.0, 100.0)
    distance = 200.0

    # Act
    result = project_perspective(point, distance=distance, scale=1.0)

    # Assert: factor = 200 / (200 + 100) = 200 / 300 = 2/3
    assert result == (100.0 * (2 / 3), 100.0 * (2 / 3))