def test_reverse_coordinates_2tuple(self):
"""
Tests the function reverse_coordinate_order for a 2-tuple.
"""
reversed_order = shapes.reverse_coordinate_order((0, 1))
self.assertEqual(reversed_order[0], 1)
self.assertEqual(reversed_order[1], 0)
def test_radius_for_multipolygon(self):
"""
Test case for a rectangle.
"""
multipolygon = Location.objects.get(pk=8)
actual = shapes.calculate_multipoly_radius_km(multipolygon.geom)
point = shapes.reverse_coordinate_order(multipolygon.geom.centroid)
expected = vincenty(point, (20, 50)).kilometers
self.assertEqual(actual, expected)
def test_radius_for_rectangle(self):
"""
Tests the function calculate_polygon_radius_km for a rectangle.
"""
rectangle = Location.objects.get(pk=3)
actual = shapes.calculate_polygon_radius_km(rectangle.geom)
point = shapes.reverse_coordinate_order(rectangle.geom.centroid)
expected = vincenty(point, (0, 1)).kilometers
self.assertEqual(actual, expected)
def test_radius_for_multipoly(self):
"""
Test case for a multipolygon.
"""
multipolygon = Location.objects.get(pk=8)
actual = multipolygon.radius_km
point = shapes.reverse_coordinate_order(multipolygon.geom.centroid)
expected = vincenty(point, (20, 50)).kilometers
self.assertTrue(actual, expected)
def test_radius_for_polygon(self):
"""
Tests the function calculate_polygon_radius_km for a nonrectangular
polygon.
"""
polygon = Location.objects.get(pk=7)
actual = shapes.calculate_polygon_radius_km(polygon.geom)
point = shapes.reverse_coordinate_order(polygon.geom.centroid)
expected = vincenty(point, (8, 0)).kilometers
self.assertEqual(actual, expected)
def test_reverse_coordinates_4tuple(self):
"""
Tests the function reverse_coordinate_order for a 4-tuple.
"""
with self.assertRaises(ValueError):
shapes.reverse_coordinate_order((1, 2, 3, 1))
