@classmethod
def teardown_class(cls):
    os.environ['MAMBA_ROOT_PREFIX'] = TestInstall.current_root_prefix
    os.environ['CONDA_PREFIX'] = TestInstall.current_prefix
    shutil.rmtree(TestInstall.root_prefix)
@classmethod
def teardown_class(cls):
    os.environ['MAMBA_ROOT_PREFIX'] = TestInstall.current_root_prefix
    os.environ['CONDA_PREFIX'] = TestInstall.current_prefix
    shutil.rmtree(TestInstall.root_prefix)