def METHOD_NAME(self):
    tcl = self.interp
    filename = "testEvalFile.tcl"
    fd = open(filename,'w')
    script = """set a 1
    set b 2
    set c [ expr $a + $b ]
    """
    fd.write(script)
    fd.close()
    tcl.evalfile(filename)
    os.remove(filename)
    self.assertEqual(tcl.eval('set a'),'1')
    self.assertEqual(tcl.eval('set b'),'2')
    self.assertEqual(tcl.eval('set c'),'3')