Files
locutus/test/test_umount.py
Alexander Wainwright 0bd9f78346 Add unmount command
2025-06-24 14:21:02 +10:00

98 lines
2.6 KiB
Python

import argparse
import pytest
import subprocess
from unittest import mock
from locutus.umount import run_umount
def make_args(mountpoint):
args = argparse.Namespace()
args.mountpoint = mountpoint
return args
@mock.patch('os.path.isdir', return_value=True)
@mock.patch('subprocess.run')
def test_umount_borg_success(mock_run, mock_isdir, capsys):
mock_run.return_value.returncode = 0
args = make_args('/mnt/test')
rc = run_umount(args)
assert rc == 0
out = capsys.readouterr().out
assert 'Unmounted /mnt/test' in out
cmd_args = mock_run.call_args[0][0]
assert cmd_args == ['borg', 'umount', '/mnt/test']
@mock.patch('os.path.isdir', return_value=True)
@mock.patch('subprocess.run')
def test_umount_fusermount_success(mock_run, mock_isdir, capsys):
# Simulate borg umount fails, fusermount -u succeeds
def side_effect(cmd, **kwargs):
if cmd[0] == 'borg':
raise subprocess.CalledProcessError(1, cmd)
return mock.Mock(returncode=0)
mock_run.side_effect = side_effect
args = make_args('/mnt/backup')
rc = run_umount(args)
assert rc == 0
out = capsys.readouterr().out
assert 'Unmounted /mnt/backup' in out
# Second call is fusermount -u
assert mock_run.call_args_list[1][0][0] == [
'fusermount',
'-u',
'/mnt/backup',
]
@mock.patch('os.path.isdir', return_value=True)
@mock.patch('subprocess.run', side_effect=Exception('fail'))
def test_umount_all_fail(mock_run, mock_isdir, capsys):
args = make_args('/mnt/doesnotunmount')
rc = run_umount(args)
assert rc == 2
err = capsys.readouterr().err
assert 'Failed to unmount' in err
@mock.patch('os.path.isdir', return_value=False)
def test_umount_bad_mountpoint(mock_isdir, capsys):
args = make_args('/not/a/dir')
rc = run_umount(args)
assert rc == 1
err = capsys.readouterr().err
assert 'does not exist or is not a directory' in err
def test_umount_usage_message(capsys):
args = argparse.Namespace()
rc = run_umount(args)
assert rc == 1
err = capsys.readouterr().err
assert 'Usage:' in err
@mock.patch('os.path.isdir', return_value=True)
@mock.patch('subprocess.run')
def test_umount_fusermount_inner_exception(mock_run, mock_isdir, capsys):
# borg umount fails (CalledProcessError), fusermount -u raises generic Exception
def side_effect(cmd, **kwargs):
if cmd[0] == 'borg':
raise subprocess.CalledProcessError(1, cmd)
if cmd[0] == 'fusermount':
raise Exception('fusermount explosion!')
return mock.Mock(returncode=0)
mock_run.side_effect = side_effect
args = make_args('/mnt/boom')
rc = run_umount(args)
assert rc == 1
err = capsys.readouterr().err
assert 'Failed to unmount /mnt/boom: fusermount explosion!' in err