def testInnerJoinDiffFieldDiff(self):
     comparator = Comparator(self.planet1, self.planet3, "eu")
     inner = comparator.innerJoinDiff()
     self.assertEqual(inner, {})
 def testInnerJoinDiffFieldMatch(self):
     comparator = Comparator(self.Star1, self.Star2, "eu")
     inner = comparator.innerJoinDiff()
     self.assertEqual(inner, {'mass': (100, 112)})