def test_union_intersecting(self):
"""Tests union of two intersecting rectanges"""
# Arrange
r1 = Rect(min_x=0, min_y=0, max_x=3, max_y=3)
r2 = Rect(min_x=-2, min_y=-2, max_x=2, max_y=2)
# Act
rect = r1.union(r2)
# Assert
self.assertEqual(Rect(min_x=-2, min_y=-2, max_x=3, max_y=3), rect)
def test_union_contains(self):
"""Tests union of two rectanges where one contains the other"""
# Arrange
r1 = Rect(min_x=1, min_y=1, max_x=3, max_y=3)
r2 = Rect(min_x=-2, min_y=-2, max_x=5, max_y=5)
# Act
rect = r1.union(r2)
# Assert
self.assertEqual(Rect(min_x=-2, min_y=-2, max_x=5, max_y=5), rect)
def test_union_disjoint(self):
"""Tests union of two disjoint (non-intersecting) rectanges"""
# Arrange
r1 = Rect(min_x=0, min_y=-1, max_x=3, max_y=3)
r2 = Rect(min_x=2, min_y=5, max_x=6, max_y=8)
# Act
rect = r1.union(r2)
# Assert
self.assertEqual(Rect(min_x=0, min_y=-1, max_x=6, max_y=8), rect)
