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dotfiles/tests/test_zfs.py
Richie Cahill 825672a450 added tests
2025-10-31 22:37:54 -04:00

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"""Test zfs."""
import json
from datetime import UTC, datetime
from unittest.mock import call
import pytest
from pytest_mock import MockerFixture
from python.zfs import Dataset, Snapshot, Zpool, get_datasets
from python.zfs.dataset import _zfs_list
from python.zfs.zpool import _zpool_list
DATASET = "python.zfs.dataset"
ZPOOL = "python.zfs.zpool"
SAMPLE_SNAPSHOT_DATA = {
"createtxg": "123",
"properties": {
"creation": {"value": "1620000000"},
"defer_destroy": {"value": "off"},
"guid": {"value": "456"},
"objsetid": {"value": "789"},
"referenced": {"value": "1024"},
"used": {"value": "512"},
"userrefs": {"value": "0"},
"version": {"value": "1"},
"written": {"value": "2048"},
},
"name": "pool/dataset@snap1",
}
SAMPLE_DATASET_DATA = {
"output_version": {"vers_major": 0, "vers_minor": 1, "command": "zfs list"},
"datasets": {
"pool/dataset": {
"properties": {
"aclinherit": {"value": "restricted"},
"aclmode": {"value": "discard"},
"acltype": {"value": "off"},
"available": {"value": "1000000"},
"canmount": {"value": "on"},
"checksum": {"value": "on"},
"clones": {"value": ""},
"compression": {"value": "lz4"},
"copies": {"value": "1"},
"createtxg": {"value": "1234"},
"creation": {"value": "1620000000"},
"dedup": {"value": "off"},
"devices": {"value": "on"},
"encryption": {"value": "off"},
"exec": {"value": "on"},
"filesystem_limit": {"value": "none"},
"guid": {"value": "5678"},
"keystatus": {"value": "none"},
"logbias": {"value": "latency"},
"mlslabel": {"value": "none"},
"mounted": {"value": "yes"},
"mountpoint": {"value": "/pool/dataset"},
"quota": {"value": "0"},
"readonly": {"value": "off"},
"recordsize": {"value": "131072"},
"redundant_metadata": {"value": "all"},
"referenced": {"value": "512000"},
"refquota": {"value": "0"},
"refreservation": {"value": "0"},
"reservation": {"value": "0"},
"setuid": {"value": "on"},
"sharenfs": {"value": "off"},
"snapdir": {"value": "hidden"},
"snapshot_limit": {"value": "none"},
"sync": {"value": "standard"},
"used": {"value": "1024000"},
"usedbychildren": {"value": "512000"},
"usedbydataset": {"value": "256000"},
"usedbysnapshots": {"value": "256000"},
"version": {"value": "5"},
"volmode": {"value": "default"},
"volsize": {"value": "none"},
"vscan": {"value": "off"},
"written": {"value": "4096"},
"xattr": {"value": "on"},
}
}
},
}
SAMPLE_ZPOOL_DATA = {
"output_version": {"vers_major": 0, "vers_minor": 1, "command": "zpool list"},
"pools": {
"testpool": {
"properties": {
"allocated": {"value": "1000000"},
"altroot": {"value": "none"},
"ashift": {"value": "12"},
"autoexpand": {"value": "off"},
"autoreplace": {"value": "off"},
"autotrim": {"value": "off"},
"capacity": {"value": "50"},
"comment": {"value": "test pool"},
"dedupratio": {"value": "1.00x"},
"delegation": {"value": "on"},
"expandsize": {"value": "0"},
"failmode": {"value": "wait"},
"fragmentation": {"value": "20"},
"free": {"value": "1000000"},
"freeing": {"value": "0"},
"guid": {"value": "12345678"},
"health": {"value": "ONLINE"},
"leaked": {"value": "0"},
"readonly": {"value": "off"},
"size": {"value": "2000000"},
}
}
},
}
def test_dataset_initialization(mocker: MockerFixture) -> None:
"""Test Dataset class initialization with mocked ZFS data."""
mocker.patch(f"{DATASET}._zfs_list", return_value=SAMPLE_DATASET_DATA)
dataset = Dataset("pool/dataset")
assert dataset.__dict__ == {
"aclinherit": "restricted",
"aclmode": "discard",
"acltype": "off",
"available": 1000000,
"canmount": "on",
"checksum": "on",
"clones": "",
"compression": "lz4",
"copies": 1,
"createtxg": 1234,
"creation": datetime(2021, 5, 3, 0, 0, tzinfo=UTC),
"dedup": "off",
"devices": "on",
"encryption": "off",
"exec": "on",
"filesystem_limit": "none",
"guid": 5678,
"keystatus": "none",
"logbias": "latency",
"mlslabel": "none",
"mounted": "yes",
"mountpoint": "/pool/dataset",
"name": "pool/dataset",
"quota": 0,
"readonly": "off",
"recordsize": 131072,
"redundant_metadata": "all",
"referenced": 512000,
"refquota": 0,
"refreservation": 0,
"reservation": 0,
"setuid": "on",
"sharenfs": "off",
"snapdir": "hidden",
"snapshot_limit": "none",
"sync": "standard",
"used": 1024000,
"usedbychildren": 512000,
"usedbydataset": 256000,
"usedbysnapshots": 256000,
"version": 5,
"volmode": "default",
"volsize": "none",
"vscan": "off",
"written": 4096,
"xattr": "on",
}
def test_snapshot_initialization() -> None:
"""Test Snapshot class initialization with mocked ZFS data."""
snapshot = Snapshot(SAMPLE_SNAPSHOT_DATA)
assert snapshot.__dict__ == {
"createtxg": 123,
"creation": datetime(2021, 5, 3, 0, 0, tzinfo=UTC),
"defer_destroy": "off",
"guid": 456,
"name": "snap1",
"objsetid": 789,
"referenced": 1024,
"used": 512,
"userrefs": 0,
"version": 1,
"written": 2048,
}
def test_zfs_list_version_check(mocker: MockerFixture) -> None:
"""Test version validation in _zfs_list."""
mocker.patch(
f"{DATASET}.bash_wrapper",
return_value=(
json.dumps({"output_version": {"vers_major": 1, "vers_minor": 0, "command": "zfs list"}}),
0,
),
)
with pytest.raises(RuntimeError) as excinfo:
_zfs_list("zfs list invalid -pHj -o all")
assert "Datasets are not in the correct format" in str(excinfo.value)
def test_get_datasets(mocker: MockerFixture) -> None:
"""Test get_datasets."""
mock_bash = mocker.patch(f"{DATASET}.bash_wrapper", return_value=("pool/dataset\npool/other\ninvalid", 0))
mock_dataset = mocker.patch(f"{DATASET}.Dataset")
get_datasets()
mock_bash.assert_called_once_with("zfs list -Hp -t filesystem -o name")
calls = [call("pool/dataset"), call("pool/other")]
mock_dataset.assert_has_calls(calls)
def test_zpool_initialization(mocker: MockerFixture) -> None:
"""Test Zpool class initialization with mocked ZFS data."""
mocker.patch(f"{ZPOOL}._zpool_list", return_value=SAMPLE_ZPOOL_DATA)
zpool = Zpool("testpool")
assert zpool.__dict__ == {
"name": "testpool",
"allocated": 1000000,
"altroot": "none",
"ashift": 12,
"autoexpand": "off",
"autoreplace": "off",
"autotrim": "off",
"capacity": 50,
"comment": "test pool",
"dedupratio": "1.00x",
"delegation": "on",
"expandsize": "0",
"failmode": "wait",
"fragmentation": 20,
"free": "1000000",
"freeing": 0,
"guid": 12345678,
"health": "ONLINE",
"leaked": 0,
"readonly": "off",
"size": 2000000,
}
def test_zpool_repr(mocker: MockerFixture) -> None:
"""Test Zpool string representation."""
mocker.patch(f"{ZPOOL}._zpool_list", return_value=SAMPLE_ZPOOL_DATA)
zpool = Zpool("testpool")
repr_string = repr(zpool)
expected_attrs = [
"name",
"allocated",
"altroot",
"ashift",
"autoexpand",
"autoreplace",
"autotrim",
"capacity",
"comment",
"dedupratio",
"delegation",
"expandsize",
"failmode",
"fragmentation",
"freeing",
"guid",
"health",
"leaked",
"readonly",
"size",
]
for attr in expected_attrs:
assert f"{attr}=" in repr_string
def test_zpool_list(mocker: MockerFixture) -> None:
"""Test version validation in _zpool_list."""
mocker.patch(
f"{ZPOOL}.bash_wrapper",
return_value=(json.dumps({"output_version": {"vers_major": 0, "vers_minor": 1, "command": "zpool list"}}), 0),
)
result = _zpool_list("zpool list invalid -pHj -o all")
assert result == {"output_version": {"command": "zpool list", "vers_major": 0, "vers_minor": 1}}
def test_zpool_list_version_check(mocker: MockerFixture) -> None:
"""Test version validation in _zpool_list."""
mocker.patch(
f"{ZPOOL}.bash_wrapper",
return_value=(json.dumps({"output_version": {"vers_major": 1, "vers_minor": 0, "command": "zpool list"}}), 0),
)
with pytest.raises(RuntimeError) as excinfo:
_zpool_list("zpool list invalid -pHj -o all")
assert "Datasets are not in the correct format" in str(excinfo.value)
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