def test_update_visio_range_when_number_neighbors_is_greater_than_maximum_neighbors(
            self):
        glowworm1 = Glowworm(self.landscape_position1, self.gso_parameters)
        glowworm2 = Glowworm(self.landscape_position7, self.gso_parameters)
        glowworm1.luciferin = 5.0
        glowworm1.vision_range = 3.0
        glowworm1.max_vision_range = 3.0
        glowworm2.luciferin = 5.0
        glowworm2.vision_range = 3.0
        glowworm2.max_vision_range = 3.0

        for _ in range(23):
            glowworm1.neighbors.append(glowworm2)

        assert 23 == len(glowworm1.neighbors)

        glowworm1.update_vision_range()

        assert_almost_equals(1.5600000000000001, glowworm1.vision_range)
    def test_update_visio_range_when_number_neighbors_is_less_than_maximum_neighbors(
            self):
        glowworm1 = Glowworm(self.landscape_position1, self.gso_parameters)
        glowworm2 = Glowworm(self.landscape_position7, self.gso_parameters)
        glowworm3 = Glowworm(self.landscape_position8, self.gso_parameters)
        glowworm1.luciferin = 3.0
        glowworm1.vision_range = 2.0
        glowworm1.max_vision_range = 1.0
        glowworm2.luciferin = 4.0
        glowworm2.vision_range = 2.0
        glowworm2.max_vision_range = 1.0
        glowworm3.luciferin = 5.0
        glowworm3.vision_range = 2.0
        glowworm3.max_vision_range = 1.0

        glowworm1.neighbors = [glowworm2, glowworm3]

        glowworm1.update_vision_range()

        assert_almost_equals(1.0, glowworm1.vision_range)