old_contents: from ppb_vector import Vector2
  from math import isclose
  import pytest  # type: ignore
  from hypothesis import assume, given, note
  from utils import angle_isclose, vectors
  
  
  @pytest.mark.parametrize("left, right, expected", [
      (Vector2(1, 1), Vector2(0, -1), -135),
      (Vector2(1, 1), Vector2(-1, 0), 135),
      (Vector2(0, 1), Vector2(0, -1), 180),
      (Vector2(-1, -1), Vector2(1, 0), 135),
      (Vector2(-1, -1), Vector2(-1, 0), -45),
      (Vector2(1, 0), Vector2(0, 1), 90),
      (Vector2(1, 0), Vector2(1, 0), 0),
  ])
  def test_angle(left, right, expected):
      lr = left.angle(right)
      rl = right.angle(left)
      assert -180 < lr <= 180
      assert -180 < rl <= 180
      assert isclose(lr, expected)
      assert isclose(rl, 180 if expected == 180 else -expected)
  
  
  @given(
      left=vectors(),
      right=vectors(),
  )
  def test_angle_prop(left, right):
      lr = left.angle(right)
      rl = right.angle(left)
      assert -180 < lr <= 180
      assert -180 < rl <= 180
      assert angle_isclose(lr, -rl)
  
new_contents: from ppb_vector import Vector2
  from math import isclose
  import pytest  # type: ignore
  from hypothesis import assume, given, note
  from utils import angle_isclose, vectors
  
  
  @pytest.mark.parametrize("left, right, expected", [
      (Vector2(1, 1), Vector2(0, -1), -135),
      (Vector2(1, 1), Vector2(-1, 0), 135),
      (Vector2(0, 1), Vector2(0, -1), 180),
      (Vector2(-1, -1), Vector2(1, 0), 135),
      (Vector2(-1, -1), Vector2(-1, 0), -45),
      (Vector2(1, 0), Vector2(0, 1), 90),
      (Vector2(1, 0), Vector2(1, 0), 0),
  ])
  def test_angle(left, right, expected):
      lr = left.angle(right)
      rl = right.angle(left)
      assert -180 < lr <= 180
      assert -180 < rl <= 180
      assert isclose(lr, expected)
      assert isclose(rl, 180 if expected == 180 else -expected)
  
  
  @given(
      left=vectors(),
      right=vectors(),
  )
  def test_angle_range(left, right):
      lr = left.angle(right)
      rl = right.angle(left)
      assert -180 < lr <= 180
      assert -180 < rl <= 180
      assert angle_isclose(lr, -rl)
  
subject: Rename test_angle_prop to test_angle_range