def test_point_a_is_none():
a = None
b = (1, 2)
with pytest.raises(ValueError) as e:
euclidean_distance(a, b)
assert str(e.value) == 'First point must be defined.'
def test_mismatching_dimensions():
a = (8, 9)
b = (1.2, 3, -7, 8)
with pytest.raises(ValueError) as e:
euclidean_distance(a, b)
msg = 'Cannot compute distance between points with different number of coordinates.'
assert str(e.value) == msg
def test_valid_int_values():
a = (8, -3, 4)
b = (7, 14, 0)
assert isclose(euclidean_distance(a, b), 17.4928, rel_tol=1e-2)
def test_overlapping_points():
a = (4, 4, 4)
b = (4, 4, 4)
assert euclidean_distance(a, b) == 0
def test_point_b_is_none():
a = (1, 2, 3)
b = None
assert isclose(euclidean_distance(a, b), 3.7416, rel_tol=1e-2)
def test_valid_float_values():
a = (1.2, 3, 4.1)
b = (5, 7.8, -9.0)
assert isclose(euclidean_distance(a, b), 14.4599, rel_tol=1e-2)