for j in range(K.dimension())]
self.assert_solution_exists(L, K, e1, e2)
+
+ def test_negative_value_Z_operator(self):
+ """
+ Test the example given in Gowda/Ravindran of a Z-matrix with
+ negative game value on the nonnegative orthant.
+ """
+ K = NonnegativeOrthant(2)
+ e1 = [1,1]
+ e2 = e1
+ L = [[1,-2],[-2,1]]
+ G = SymmetricLinearGame(L, K, e1, e2)
+ self.assertTrue(G.solution().game_value() < -options.ABS_TOL)