new_contents: import unittest
  
  from geometry.angle import AngleInRadians, AngleInDegrees
  
  class UnitTestAngle(unittest.TestCase):
      def setUp(self):
          pass
  
      def test_conversion(self):
          """Radians to degrees."""
          a_rads = AngleInRadians(value = AngleInRadians.PI_HALF)
          a_degrees = AngleInDegrees.from_radians(angle_in_radians=a_rads)
          self.assertAlmostEqual(a_degrees.value, 90)
          a_rads = AngleInRadians(value = AngleInRadians.THREE_HALFS_OF_PI)
          a_degrees = AngleInDegrees.from_radians(angle_in_radians=a_rads)
          self.assertAlmostEqual(a_degrees.value, 270)
  
subject: Test Angles