Function test_round_func_round_nearest

tests/test_read.py:180–200

Tests rounding to the nearest integer works well for the RC208 instance, which has Euclidean distances computed from integer coordinates. Since the instance is large, we'll test one particular distance.

()

def test_round_func_round_nearest():
    """
    Tests rounding to the nearest integer works well for the RC208 instance,
    which has Euclidean distances computed from integer coordinates. Since the
    instance is large, we'll test one particular distance.
    """
    data = read("data/RC208.vrp", "round")

    # We're going to test dist(0, 1) and dist(1, 0), which should be the same
    # since the distances are symmetric/Euclidean.
    assert_equal(data.location(0).x, 40)
    assert_equal(data.location(0).y, 50)

    assert_equal(data.location(1).x, 25)
    assert_equal(data.location(1).y, 85)

    # Compute the distance, and assert that it is indeed correctly rounded.
    distances = data.distance_matrix(profile=0)
    expected_dist = round(sqrt((40 - 25) ** 2 + (85 - 50) ** 2))
    assert_equal(distances[0, 1], expected_dist)
    assert_equal(distances[1, 0], expected_dist)


def test_round_func_exact():