new_contents: import unittest
  import copy
  
  from xie.graphics.shape import Pane
  
  class PaneTestCase(unittest.TestCase):
  	def setUp(self):
  		self.generateTestData()
  
  	def tearDown(self):
  		pass
  
  	def generateTestData(self):
  		self.pane_1=Pane(38, 32, 101, 50)
  		self.pane_2=Pane(22, 50, 122, 89)
  		self.pane_3=Pane(5, 20, 31, 32)
  		self.pane_4=Pane(2, 1, 5, 88)
  
  		self.point_1=(47, 51)
  		self.point_2=(77, 43)
  
  	def testPaneEquality(self):
  		self.assertEqual(self.pane_1, copy.deepcopy(self.pane_1))
  		self.assertEqual(self.pane_2, copy.deepcopy(self.pane_2))
  		self.assertEqual(self.pane_3, copy.deepcopy(self.pane_3))
  		self.assertEqual(self.pane_4, copy.deepcopy(self.pane_4))
  
  	def test_transformRelativePointByTargetPane(self):
  		transformedPoint_1=self.pane_1.transformRelativePointByTargetPane(self.point_1, self.pane_4)
  		self.assertEqual(transformedPoint_1, (2, 89))
  
  		transformedPoint_2=self.pane_1.transformRelativePointByTargetPane(self.point_2, self.pane_4)
  		self.assertEqual(transformedPoint_2, (4, 51))
  
  	def test_transformRelativePaneByTargetPane(self):
  		transformedPane_1=self.pane_1.transformRelativePaneByTargetPane(self.pane_2, self.pane_4)
  		self.assertEqual(transformedPane_1, Pane(1, 84, 7, 265))
  
  		transformedPane_2=self.pane_1.transformRelativePaneByTargetPane(self.pane_3, self.pane_4)
  		self.assertEqual(transformedPane_2, Pane(0, -54, 2, 1))
  
  
  
subject: Add test cases for Pane.