def test_get_edge_direction_up_left(self):
"""Ensures correct output from _get_edge_direction.
In this case, direction is up-left.
"""
this_direction_name = polygons._get_edge_direction(
first_row=FIRST_VERTEX_ROW,
second_row=SECOND_VERTEX_ROW_UP_LEFT,
first_column=FIRST_VERTEX_COLUMN,
second_column=SECOND_VERTEX_COLUMN_UP_LEFT)
self.assertTrue(this_direction_name == polygons.UP_LEFT_DIRECTION_NAME)
def test_get_edge_direction_down(self):
"""Ensures correct output from _get_edge_direction.
In this case, direction is down.
"""
this_direction_name = polygons._get_edge_direction(
first_row=FIRST_VERTEX_ROW,
second_row=SECOND_VERTEX_ROW_DOWN,
first_column=FIRST_VERTEX_COLUMN,
second_column=SECOND_VERTEX_COLUMN_DOWN)
self.assertTrue(this_direction_name == polygons.DOWN_DIRECTION_NAME)