#format python
""" 
Seminar:FourBoxes problem in [yong27/2003-01-10]
"""
import unittest

class Rect:
    def set(self,x1,y1,x2,y2):
        self.xr=range(x1,x2)
        self.yr=range(y1,y2)
        self.tiles=[]
        for x in self.xr:
            for y in self.yr:
                self.tiles.append((x,y))
    def getTiles(self):
        return self.tiles
    def __add__(self, aRect):
        for tile in aRect.tiles:
            if tile not in self.tiles:
                self.tiles.append(tile)
        self.tiles.sort()
        return self
    def size(self):
        return len(self.tiles)
    
class RectTest(unittest.TestCase):
    def testGetTiles(self):
        a=Rect()
        a.set(1,2,4,4)
        expected=[(1,2),(1,3),(2,2),(2,3),(3,2),(3,3)]
        self.assertEquals(expected, a.getTiles())
    def testAdd(self):
        a=Rect(); a.set(1,2,4,4)
        b=Rect(); b.set(0,2,3,4)
        expected=[(0,2),(0,3),(1,2),(1,3),(2,2),(2,3),(3,2),(3,3)]
        total=a+b
        self.assertEquals(expected, total.getTiles())
    def testAddThree(self):
        a=Rect(); a.set(1,2,4,4)
        b=Rect(); b.set(0,2,3,4)
        c=Rect(); c.set(3,2,5,4)
        expected=[(0,2),(0,3),(1,2),(1,3),(2,2),(2,3),(3,2),(3,3),(4,2),(4,3)]
        total=a+b+c
        self.assertEquals(expected, total.getTiles())
    def testGetSize(self):
        a=Rect()
        a.set(1,2,4,4)
        self.assertEquals(6, a.size())
    def testGetSizeTwo(self):
        a=Rect(); a.set(1,2,4,4)
        b=Rect(); b.set(0,2,3,4)
        total=a+b
        self.assertEquals(8, total.size())
    def testProblem(self):
        a=Rect(); a.set(1,2,4,4)
        b=Rect(); b.set(2,3,5,7)
        c=Rect(); c.set(3,1,6,5)
        d=Rect(); d.set(7,3,8,6)
        total=a+b+c+d
        self.assertEquals(26, total.size())

if __name__=='__main__':
    unittest.main(argv=('','-v'))