def tearDown(self):
        query = self.run_cloud('--query')
        ret_str = '        {0}:'.format(INSTANCE_NAME)

        # if test instance is still present, delete it
        if ret_str in query:
            self.run_cloud('-d {0} --assume-yes'.format(INSTANCE_NAME))
Plots multiple ROC curves on the same chart. 
dataset/ETHPy150Open saltstack/salt/tests/integration/cloud/providers/joyent.py/JoyentTest.tearDown--crossover with--dataset/ETHPy150Open pivotalsoftware/pymadlib/pymadlib/pyroc.py/plot_multiple_roc