'Case where the mount works the first time.'

def test_ensure_share_mounted(self):

    self._set_driver()
    self.mock_object(self._driver._remotefsclient, 'mount')
    drv = self._driver
    drv.configuration.nfs_mount_attempts = 3
    drv.shares = {self.TEST_NFS_EXPORT1: ''}
    drv._ensure_share_mounted(self.TEST_NFS_EXPORT1)
    drv._remotefsclient.mount.called_once()
