def testAllMethods(self):
        keys = ('disable', 'on_taskstart', 'on_taskrun', 'on_taskend',
                'parse_option', 'execute')
        for k in keys:
            method = getattr(self.plugin, k, 'TESTVAL')
            self.assertIsNotNone(method)
            self.assertTrue(callable(method))
If the `delete-safe` option is set to true, move the old libraries
dataset/ETHPy150Open xtrementl/focus/tests/unit/plugin/test_base.py/TestPlugin.testAllMethods--crossover with--dataset/ETHPy150Open moraes/tipfy/manage/newaction.py/InstallPackagesAction.delete_libs