mirror of
https://github.com/lrnselfreliance/wrolpi.git
synced 2026-10-26 10:51:36 -04:00
826f1cdc42
On a Debian install the onboarding wizard offered the EFI system partition (unlabeled vfat at /boot/efi) as the primary WROLPi drive; choosing it would mount the boot partition over /media/wrolpi. Candidates were filtered by the "EFI" label only, and the Debian installer leaves the ESP unlabeled. /boot/efi is now an excluded mountpoint, and partitions with the EFI system partition type (GPT GUID or MBR 0xef, from lsblk PARTTYPE) are excluded even when unmounted, e.g. on a second internal disk. Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
541 lines
22 KiB
Python
541 lines
22 KiB
Python
"""
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Unit tests for controller.lib.disks module.
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"""
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import json
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from unittest import mock
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import pytest
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from controller.lib.disks import (
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BlockDevice,
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check_shadowed_data,
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get_block_devices,
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get_uuid,
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get_wrolpi_uid_gid,
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validate_mount_point,
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mount_drive,
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unmount_drive,
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is_mount_busy,
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get_mounts,
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)
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class TestBlockDevice:
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"""Tests for BlockDevice dataclass."""
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def test_create_block_device(self):
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"""Should create a BlockDevice instance."""
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device = BlockDevice(
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name="sda1",
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path="/dev/sda1",
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size="100G",
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fstype="ext4",
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mountpoint="/media/data",
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label="DATA",
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uuid="1234-5678",
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model="Samsung SSD",
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)
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assert device.name == "sda1"
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assert device.path == "/dev/sda1"
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assert device.is_wrolpi_drive is False
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def test_block_device_defaults(self):
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"""Should have default values."""
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device = BlockDevice(
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name="sda1",
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path="/dev/sda1",
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size="100G",
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fstype=None,
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mountpoint=None,
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label=None,
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uuid=None,
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model=None,
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)
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assert device.is_wrolpi_drive is False
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class TestGetBlockDevices:
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"""Tests for get_block_devices function."""
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def test_returns_empty_in_docker_mode(self):
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"""Should return empty list in Docker mode."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=True):
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result = get_block_devices()
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assert result == []
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def test_returns_devices_from_lsblk(self):
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"""Should parse lsblk output and return devices."""
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lsblk_output = json.dumps({
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"blockdevices": [
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{
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"name": "sda",
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"path": "/dev/sda",
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"size": "500G",
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"type": "disk",
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"model": "Samsung SSD",
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"children": [
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{
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"name": "sda1",
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"path": "/dev/sda1",
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"size": "500G",
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"type": "part",
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"fstype": "ext4",
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"mountpoint": "/media/data",
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"label": "DATA",
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"uuid": "1234-5678",
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}
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]
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}
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]
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})
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False):
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with mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=0, stdout=lsblk_output)
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result = get_block_devices()
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assert len(result) == 1
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assert result[0].name == "sda1"
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assert result[0].fstype == "ext4"
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assert result[0].model == "Samsung SSD"
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def test_reads_partition_type(self):
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"""The partition type identifies an EFI system partition whatever its label or mount."""
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lsblk_output = json.dumps({"blockdevices": [{
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"name": "sda", "path": "/dev/sda", "size": "500G", "type": "disk", "children": [{
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"name": "sda1", "path": "/dev/sda1", "size": "512M", "type": "part", "fstype": "vfat",
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"parttype": "c12a7328-f81f-11d2-ba4b-00a0c93ec93b",
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}],
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}]})
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False):
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with mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=0, stdout=lsblk_output)
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result = get_block_devices()
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assert "PARTTYPE" in mock_run.call_args.args[0][-1].split(",")
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assert result[0].parttype == "c12a7328-f81f-11d2-ba4b-00a0c93ec93b"
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def test_filters_unsupported_filesystems(self):
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"""Should only return devices with supported filesystems."""
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lsblk_output = json.dumps({
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"blockdevices": [
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{
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"name": "sda",
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"type": "disk",
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"children": [
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{"name": "sda1", "path": "/dev/sda1", "size": "100G", "type": "part", "fstype": "ext4"},
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{"name": "sda2", "path": "/dev/sda2", "size": "100G", "type": "part", "fstype": "xfs"},
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]
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}
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]
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})
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False):
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with mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=0, stdout=lsblk_output)
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result = get_block_devices()
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assert len(result) == 1
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assert result[0].name == "sda1"
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def test_returns_whole_disk_without_partitions(self):
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"""Should return a disk device that has a supported filesystem but no partitions."""
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lsblk_output = json.dumps({
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"blockdevices": [
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{
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"name": "sda",
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"path": "/dev/sda",
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"size": "1.8T",
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"type": "disk",
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"fstype": "ext4",
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"mountpoint": "/media/pi/crucialx9",
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"label": "crucialx9",
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"uuid": "abcd-1234",
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"model": "CT2000X9SSD9",
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}
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]
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})
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False):
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with mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=0, stdout=lsblk_output)
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result = get_block_devices()
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assert len(result) == 1
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assert result[0].name == "sda"
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assert result[0].fstype == "ext4"
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assert result[0].model == "CT2000X9SSD9"
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def test_does_not_return_parent_disk_when_it_has_partitions(self):
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"""Should not include a parent disk that has children partitions."""
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lsblk_output = json.dumps({
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"blockdevices": [
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{
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"name": "sda",
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"path": "/dev/sda",
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"size": "500G",
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"type": "disk",
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"fstype": "ext4",
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"model": "Samsung SSD",
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"children": [
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{
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"name": "sda1",
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"path": "/dev/sda1",
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"size": "500G",
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"type": "part",
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"fstype": "ext4",
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"mountpoint": "/media/data",
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"label": "DATA",
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"uuid": "1234-5678",
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}
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]
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}
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]
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})
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False):
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with mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=0, stdout=lsblk_output)
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result = get_block_devices()
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assert len(result) == 1
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assert result[0].name == "sda1" # Only the partition, not the parent disk
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def test_handles_lsblk_failure(self):
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"""Should return empty list on lsblk failure."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False):
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with mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=1, stdout="", stderr="error")
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result = get_block_devices()
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assert result == []
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class TestGetUuid:
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"""Tests for get_uuid function."""
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def test_returns_uuid_from_blkid(self):
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"""Should return UUID from blkid output."""
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with mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=0, stdout="1234-5678-90ab\n")
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result = get_uuid("/dev/sda1")
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assert result == "1234-5678-90ab"
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def test_returns_none_on_failure(self):
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"""Should return None if blkid fails."""
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with mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=1, stdout="")
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result = get_uuid("/dev/sda1")
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assert result is None
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class TestValidateMountPoint:
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"""Tests for validate_mount_point function."""
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def test_accepts_media_path(self):
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"""Should accept paths under /media."""
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validate_mount_point("/media/wrolpi")
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validate_mount_point("/media/usb")
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validate_mount_point("/media/wrolpi/data")
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def test_rejects_non_media_paths(self):
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"""Should reject paths not under /media."""
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with pytest.raises(ValueError, match="must be under /media"):
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validate_mount_point("/mnt/data")
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with pytest.raises(ValueError, match="must be under /media"):
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validate_mount_point("/home/user")
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with pytest.raises(ValueError, match="must be under /media"):
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validate_mount_point("/")
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def test_rejects_path_traversal(self):
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"""Should reject path traversal attempts."""
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with pytest.raises(ValueError):
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validate_mount_point("/media/../etc")
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class TestMountDrive:
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"""Tests for mount_drive function."""
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def test_returns_error_in_docker_mode(self):
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"""Should return error in Docker mode."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=True):
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result = mount_drive("/dev/sda1", "/media/test")
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assert result["success"] is False
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assert "Docker" in result["error"]
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def test_validates_mount_point(self):
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"""Should validate mount point."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False):
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result = mount_drive("/dev/sda1", "/mnt/test")
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assert result["success"] is False
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assert "must be under /media" in result["error"]
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def test_mounts_drive_successfully(self):
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"""Should mount drive successfully."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False):
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with mock.patch("pathlib.Path.mkdir"):
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with mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=0, stdout="", stderr="")
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result = mount_drive("/dev/sda1", "/media/test")
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assert result["success"] is True
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assert result["mount_point"] == "/media/test"
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def test_handles_mount_failure(self):
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"""Should handle mount failure."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False):
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with mock.patch("pathlib.Path.mkdir"):
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with mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=1, stdout="", stderr="mount failed")
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result = mount_drive("/dev/sda1", "/media/test")
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assert result["success"] is False
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assert "mount failed" in result["error"]
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def test_ntfs_mount_runs_ntfsfix_first(self):
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"""NTFS mounts run ntfsfix -d before mount to clear the Windows dirty flag."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False), \
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mock.patch("controller.lib.disks.get_wrolpi_uid_gid", return_value=(1001, 1001)), \
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mock.patch("pathlib.Path.mkdir"), \
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mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=0, stdout="", stderr="")
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result = mount_drive("/dev/sdb2", "/media/test", fstype="ntfs")
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assert result["success"] is True
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commands = [c[0][0] for c in mock_run.call_args_list]
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assert commands[0][:2] == ["ntfsfix", "-d"]
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assert "/dev/sdb2" in commands[0]
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assert commands[1][0] == "mount"
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def test_ntfsfix_failure_does_not_block_mount(self):
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"""A failed ntfsfix is logged but the mount is still attempted."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False), \
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mock.patch("controller.lib.disks.get_wrolpi_uid_gid", return_value=(1001, 1001)), \
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mock.patch("pathlib.Path.mkdir"), \
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mock.patch("subprocess.run") as mock_run:
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mock_run.side_effect = [
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mock.Mock(returncode=1, stdout="", stderr="ntfsfix failed"), # ntfsfix
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mock.Mock(returncode=0, stdout="", stderr=""), # mount
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]
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result = mount_drive("/dev/sdb2", "/media/test", fstype="ntfs")
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assert result["success"] is True
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def test_ext4_mount_does_not_run_ntfsfix(self):
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"""Non-NTFS mounts must not invoke ntfsfix."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False), \
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mock.patch("pathlib.Path.mkdir"), \
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mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=0, stdout="", stderr="")
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result = mount_drive("/dev/sda1", "/media/test", fstype="ext4")
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assert result["success"] is True
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commands = [c[0][0] for c in mock_run.call_args_list]
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assert len(commands) == 1
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assert commands[0][0] == "mount"
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@pytest.mark.parametrize("fstype,expect_uid_gid", [
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("exfat", True),
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("vfat", True), # FAT32
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("ntfs", True), # ntfs-3g userspace driver
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("ntfs3", True), # in-kernel ntfs3 driver (kernel 5.15+)
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("ext4", False), # POSIX permissions; no uid/gid mount opts
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])
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def test_mount_uid_gid_options_by_fstype(self, fstype, expect_uid_gid):
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"""Foreign-fs mounts (exfat/vfat/ntfs/ntfs3) inject uid/gid; ext4 must not."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False), \
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mock.patch("controller.lib.disks.get_wrolpi_uid_gid", return_value=(1001, 1001)), \
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mock.patch("pathlib.Path.mkdir"), \
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mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=0, stdout="", stderr="")
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result = mount_drive("/dev/sda1", "/media/test", fstype=fstype)
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assert result["success"] is True
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call_args = mock_run.call_args[0][0]
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assert "-o" in call_args
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options = call_args[call_args.index("-o") + 1]
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if expect_uid_gid:
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assert "uid=1001" in options
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assert "gid=1001" in options
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else:
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assert "uid=" not in options
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assert "gid=" not in options
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class TestGetWrolpiUidGid:
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"""Tests for get_wrolpi_uid_gid function."""
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def test_returns_wrolpi_user_ids(self):
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"""Should return uid/gid for wrolpi user when it exists."""
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mock_pwd = mock.Mock()
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mock_pwd.pw_uid = 1001
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mock_grp = mock.Mock()
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mock_grp.gr_gid = 1001
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with mock.patch("controller.lib.disks.pwd.getpwnam", return_value=mock_pwd):
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with mock.patch("controller.lib.disks.grp.getgrnam", return_value=mock_grp):
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uid, gid = get_wrolpi_uid_gid()
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assert uid == 1001
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assert gid == 1001
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def test_returns_fallback_when_user_not_found(self):
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"""Should return 1001:1001 fallback when wrolpi user doesn't exist."""
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with mock.patch("controller.lib.disks.pwd.getpwnam", side_effect=KeyError("wrolpi")):
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uid, gid = get_wrolpi_uid_gid()
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assert uid == 1001
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assert gid == 1001
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|
|
|
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class TestUnmountDrive:
|
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"""Tests for unmount_drive function."""
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|
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def test_returns_error_in_docker_mode(self):
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"""Should return error in Docker mode."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=True):
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result = unmount_drive("/media/test")
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assert result["success"] is False
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assert "Docker" in result["error"]
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def test_unmounts_successfully(self):
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"""Should unmount successfully."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False):
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with mock.patch("controller.lib.disks.is_mount_busy", return_value=False):
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with mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=0)
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result = unmount_drive("/media/test")
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assert result["success"] is True
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|
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def test_checks_if_mount_busy(self):
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"""Should check if mount is busy."""
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with mock.patch("controller.lib.disks.is_docker_mode", return_value=False):
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with mock.patch("controller.lib.disks.is_mount_busy", return_value=True):
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result = unmount_drive("/media/test", lazy=False)
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assert result["success"] is False
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assert "busy" in result["error"]
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|
|
|
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class TestIsMountBusy:
|
|
"""Tests for is_mount_busy function."""
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|
|
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def test_returns_true_if_processes_using(self):
|
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"""Should return True if processes are using mount."""
|
|
with mock.patch("subprocess.run") as mock_run:
|
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mock_run.return_value = mock.Mock(returncode=0, stdout="python /media/test/file.py")
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result = is_mount_busy("/media/test")
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# is_mount_busy returns truthy value (non-empty string) when busy
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assert result
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def test_returns_false_if_no_processes(self):
|
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"""Should return False if no processes using mount."""
|
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with mock.patch("subprocess.run") as mock_run:
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mock_run.return_value = mock.Mock(returncode=1, stdout="")
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result = is_mount_busy("/media/test")
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assert not result
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|
|
|
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class TestGetMounts:
|
|
"""Tests for get_mounts function."""
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|
|
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def test_returns_mounts_under_media(self):
|
|
"""Should return mounts under /media."""
|
|
findmnt_output = json.dumps({
|
|
"filesystems": [
|
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{"target": "/", "source": "/dev/sda1", "fstype": "ext4", "options": "rw"},
|
|
{"target": "/media/wrolpi", "source": "/dev/sdb1", "fstype": "ext4", "options": "rw"},
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{"target": "/media/usb", "source": "/dev/sdc1", "fstype": "vfat", "options": "rw"},
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]
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})
|
|
with mock.patch("subprocess.run") as mock_run:
|
|
mock_run.return_value = mock.Mock(returncode=0, stdout=findmnt_output)
|
|
result = get_mounts()
|
|
assert len(result) == 2
|
|
assert result[0]["mount_point"] == "/media/wrolpi"
|
|
assert result[1]["mount_point"] == "/media/usb"
|
|
|
|
|
|
class TestCheckShadowedData:
|
|
"""Tests for check_shadowed_data."""
|
|
|
|
def test_returns_none_for_missing_target(self, tmp_path):
|
|
assert check_shadowed_data(str(tmp_path / "nope")) is None
|
|
|
|
def test_returns_none_for_empty_target(self, tmp_path):
|
|
target = tmp_path / "wrolpi"
|
|
target.mkdir()
|
|
assert check_shadowed_data(str(target)) is None
|
|
|
|
def test_returns_none_when_only_config_present(self, tmp_path):
|
|
"""A `config/` holding only the CA from generate_certificates.sh is expected pre-mount state."""
|
|
target = tmp_path / "wrolpi"
|
|
target.mkdir()
|
|
(target / "config" / "ssl").mkdir(parents=True)
|
|
(target / "config" / "ssl" / "ca.crt").write_text("cert")
|
|
assert check_shadowed_data(str(target)) is None
|
|
|
|
def test_detects_config_with_user_data(self, tmp_path):
|
|
"""A library kept on the internal disk has its database and configs in `config/`."""
|
|
target = tmp_path / "wrolpi"
|
|
target.mkdir()
|
|
(target / "config" / "ssl").mkdir(parents=True)
|
|
(target / "config" / "ssl" / "ca.crt").write_text("cert")
|
|
(target / "config" / "wrolpi.db").write_bytes(b"x" * 10)
|
|
result = check_shadowed_data(str(target))
|
|
assert result["entries"] == ["config"]
|
|
assert result["size_bytes"] == 14
|
|
|
|
def test_detects_directory_entry(self, tmp_path):
|
|
target = tmp_path / "wrolpi"
|
|
target.mkdir()
|
|
(target / "videos").mkdir()
|
|
(target / "videos" / "a.mp4").write_bytes(b"x" * 100)
|
|
result = check_shadowed_data(str(target))
|
|
assert result == {"size_bytes": 100, "entries": ["videos"]}
|
|
|
|
def test_detects_file_entry(self, tmp_path):
|
|
target = tmp_path / "wrolpi"
|
|
target.mkdir()
|
|
(target / "stray.txt").write_bytes(b"hello")
|
|
result = check_shadowed_data(str(target))
|
|
assert result == {"size_bytes": 5, "entries": ["stray.txt"]}
|
|
|
|
def test_sums_sizes_across_multiple_entries(self, tmp_path):
|
|
target = tmp_path / "wrolpi"
|
|
target.mkdir()
|
|
(target / "config").mkdir() # ignored
|
|
(target / "videos").mkdir()
|
|
(target / "videos" / "a.mp4").write_bytes(b"x" * 200)
|
|
(target / "videos" / "b.mp4").write_bytes(b"x" * 300)
|
|
(target / "zims").mkdir()
|
|
(target / "zims" / "z.zim").write_bytes(b"x" * 500)
|
|
result = check_shadowed_data(str(target))
|
|
assert result["size_bytes"] == 1000
|
|
assert result["entries"] == ["videos", "zims"]
|
|
|
|
def test_does_not_follow_symlinks_to_directories(self, tmp_path):
|
|
"""A symlink at the mount target must not have its target walked.
|
|
|
|
Regression: previously a symlink-to-dir was detected by is_dir()
|
|
(which follows symlinks), then rglob walked the target — so
|
|
`ln -s /etc /media/wrolpi/x` would sum the size of /etc.
|
|
"""
|
|
outside = tmp_path / "outside"
|
|
outside.mkdir()
|
|
# A few large files outside the mount target.
|
|
(outside / "a").write_bytes(b"x" * 10_000)
|
|
(outside / "b").write_bytes(b"x" * 20_000)
|
|
|
|
target = tmp_path / "wrolpi"
|
|
target.mkdir()
|
|
(target / "videos").mkdir()
|
|
(target / "videos" / "movie.mp4").write_bytes(b"x" * 100)
|
|
# Symlink pointing outside the mount target.
|
|
(target / "external").symlink_to(outside)
|
|
|
|
result = check_shadowed_data(str(target))
|
|
# `external` is listed (the user should know it's there) but it
|
|
# contributes 0 to the size — only the real `videos` data counts.
|
|
assert result["entries"] == ["external", "videos"]
|
|
assert result["size_bytes"] == 100
|
|
|
|
def test_does_not_follow_symlinks_to_files(self, tmp_path):
|
|
"""A symlink-to-file is listed but contributes 0 bytes."""
|
|
outside_file = tmp_path / "big.bin"
|
|
outside_file.write_bytes(b"x" * 50_000)
|
|
|
|
target = tmp_path / "wrolpi"
|
|
target.mkdir()
|
|
(target / "link.bin").symlink_to(outside_file)
|
|
|
|
result = check_shadowed_data(str(target))
|
|
assert result["entries"] == ["link.bin"]
|
|
assert result["size_bytes"] == 0
|
|
|
|
|