from datetime import datetime, timedelta
from distutils.version import StrictVersion
from typing import List, Tuple
from uuid import uuid4
import pytest
from ereuse_devicehub.client import UserClient
from ereuse_devicehub.db import db
from ereuse_devicehub.devicehub import Devicehub
from ereuse_devicehub.resources.device.exceptions import NeedsId
from ereuse_devicehub.resources.device.models import Device, Microtower, SolidStateDrive
from ereuse_devicehub.resources.device.sync import MismatchBetweenTagsAndHid
from ereuse_devicehub.resources.enums import Bios, RatingSoftware, SnapshotSoftware
from ereuse_devicehub.resources.event.models import EraseBasic, Event, Snapshot, SnapshotRequest, \
WorkbenchRate
from ereuse_devicehub.resources.tag import Tag
from ereuse_devicehub.resources.user.models import User
from tests.conftest import file
def assert_similar_device(device1: dict, device2: dict):
"""
Like :class:`ereuse_devicehub.resources.device.models.Device.
is_similar()` but adapted for testing.
"""
assert isinstance(device1, dict) and device1
assert isinstance(device2, dict) and device2
for key in 'serialNumber', 'model', 'manufacturer', 'type':
assert device1.get(key, None) == device2.get(key, None)
def assert_similar_components(components1: List[dict], components2: List[dict]):
"""
Asserts that the components in components1 are
similar than the components in components2.
"""
assert len(components1) == len(components2)
for c1, c2 in zip(components1, components2):
assert_similar_device(c1, c2)
def snapshot_and_check(user: UserClient,
input_snapshot: dict,
event_types: Tuple[str] = tuple(),
perform_second_snapshot=True) -> dict:
"""
Performs a Snapshot and then checks if the result is ok:
- There have been performed the types of events and in the same
order as described in the passed-in ``event_types``.
- The inputted devices are similar to the resulted ones.
- There is no Remove event after the first Add.
- All input components are now inside the parent device.
Optionally, it can perform a second Snapshot which should
perform an exact result, except for the events.
:return: The last resulting snapshot.
"""
snapshot, _ = user.post(res=Snapshot, data=input_snapshot)
assert tuple(e['type'] for e in snapshot['events']) == event_types
# Ensure there is no Remove event after the first Add
found_add = False
for event in snapshot['events']:
if event['type'] == 'Add':
found_add = True
if found_add:
assert event['type'] != 'Receive', 'All Remove events must be before the Add ones'
assert input_snapshot['device']
assert_similar_device(input_snapshot['device'], snapshot['device'])
assert_similar_components(input_snapshot['components'], snapshot['components'])
assert all(c['parent'] == snapshot['device']['id'] for c in snapshot['components']), \
'Components must be in their parent'
if perform_second_snapshot:
input_snapshot['uuid'] = uuid4()
return snapshot_and_check(user, input_snapshot, event_types, perform_second_snapshot=False)
else:
return snapshot
@pytest.mark.usefixtures('auth_app_context')
def test_snapshot_model():
"""
Tests creating a Snapshot with its relationships ensuring correct
DB mapping.
"""
device = Microtower(serial_number='a1')
# noinspection PyArgumentList
snapshot = Snapshot(uuid=uuid4(),
date=datetime.now(),
version='1.0',
software=SnapshotSoftware.DesktopApp,
elapsed=timedelta(seconds=25))
snapshot.device = device
snapshot.request = SnapshotRequest(request={'foo': 'bar'})
snapshot.events.add(WorkbenchRate(processor=0.1,
ram=1.0,
bios=Bios.A,
labelling=False,
graphic_card=0.1,
data_storage=4.1,
algorithm_software=RatingSoftware.Ereuse,
algorithm_version=StrictVersion('1.0'),
device=device))
db.session.add(snapshot)
db.session.commit()
device = Microtower.query.one() # type: Microtower
e1, e2 = device.events
assert isinstance(e1, Snapshot), 'Creation order must be preserved: 1. snapshot, 2. WR'
assert isinstance(e2, WorkbenchRate)
db.session.delete(device)
db.session.commit()
assert Snapshot.query.one_or_none() is None
assert SnapshotRequest.query.one_or_none() is None
assert User.query.one() is not None
assert Microtower.query.one_or_none() is None
assert Device.query.one_or_none() is None
def test_snapshot_schema(app: Devicehub):
with app.app_context():
s = file('basic.snapshot')
app.resources['Snapshot'].schema.load(s)
def test_snapshot_post(user: UserClient):
"""
Tests the post snapshot endpoint (validation, etc), data correctness,
and relationship correctness.
"""
snapshot = snapshot_and_check(user, file('basic.snapshot'),
event_types=('WorkbenchRate',),
perform_second_snapshot=False)
assert snapshot['software'] == 'Workbench'
assert snapshot['version'] == '11.0'
assert snapshot['uuid'] == 'f5efd26e-8754-46bc-87bf-fbccc39d60d9'
assert snapshot['elapsed'] == 4
assert snapshot['author']['id'] == user.user['id']
assert 'events' not in snapshot['device']
assert 'author' not in snapshot['device']
device, _ = user.get(res=Device, item=snapshot['device']['id'])
assert snapshot['components'] == device['components']
assert tuple(c['type'] for c in snapshot['components']) == ('GraphicCard', 'RamModule')
rate, _ = user.get(res=Event, item=snapshot['events'][0]['id'])
assert rate['device']['id'] == snapshot['device']['id']
assert rate['components'] == snapshot['components']
assert rate['snapshot']['id'] == snapshot['id']
def test_snapshot_component_add_remove(user: UserClient):
"""
Tests adding and removing components and some don't generate HID.
All computers generate HID.
"""
def get_events_info(events: List[dict]) -> tuple:
return tuple(
(
e['type'],
[c['serialNumber'] for c in e['components']]
)
for e in user.get_many(res=Event, resources=events, key='id')
)
# We add the first device (2 times). The distribution of components
# (represented with their S/N) should be:
# PC 1: p1c1s, p1c2s, p1c3s. PC 2: ΓΈ
s1 = file('1-device-with-components.snapshot')
snapshot1 = snapshot_and_check(user, s1, perform_second_snapshot=False)
pc1_id = snapshot1['device']['id']
pc1, _ = user.get(res=Device, item=pc1_id)
# Parent contains components
assert tuple(c['serialNumber'] for c in pc1['components']) == ('p1c1s', 'p1c2s', 'p1c3s')
# Components contain parent
assert all(c['parent'] == pc1_id for c in pc1['components'])
# pc has Snapshot as event
assert len(pc1['events']) == 1
assert pc1['events'][0]['type'] == Snapshot.t
# p1c1s has Snapshot
p1c1s, _ = user.get(res=Device, item=pc1['components'][0]['id'])
assert tuple(e['type'] for e in p1c1s['events']) == ('Snapshot',)
# We register a new device
# It has the processor of the first one (p1c2s)
# PC 1: p1c1s, p1c3s. PC 2: p2c1s, p1c2s
# Events PC1: Snapshot, Remove. PC2: Snapshot
s2 = file('2-second-device-with-components-of-first.snapshot')
# num_events = 2 = Remove, Add
snapshot2 = snapshot_and_check(user, s2, event_types=('Remove',),
perform_second_snapshot=False)
pc2_id = snapshot2['device']['id']
pc1, _ = user.get(res=Device, item=pc1_id)
pc2, _ = user.get(res=Device, item=pc2_id)
# PC1
assert tuple(c['serialNumber'] for c in pc1['components']) == ('p1c1s', 'p1c3s')
assert all(c['parent'] == pc1_id for c in pc1['components'])
assert tuple(e['type'] for e in pc1['events']) == ('Snapshot', 'Remove')
# PC2
assert tuple(c['serialNumber'] for c in pc2['components']) == ('p1c2s', 'p2c1s')
assert all(c['parent'] == pc2_id for c in pc2['components'])
assert tuple(e['type'] for e in pc2['events']) == ('Snapshot',)
# p1c2s has two Snapshots, a Remove and an Add
p1c2s, _ = user.get(res=Device, item=pc2['components'][0]['id'])
assert tuple(e['type'] for e in p1c2s['events']) == ('Snapshot', 'Snapshot', 'Remove')
# We register the first device again, but removing motherboard
# and moving processor from the second device to the first.
# We have created 1 Remove (from PC2's processor back to PC1)
# PC 0: p1c2s, p1c3s. PC 1: p2c1s
s3 = file('3-first-device-but-removing-motherboard-and-adding-processor-from-2.snapshot')
snapshot_and_check(user, s3, ('Remove',), perform_second_snapshot=False)
pc1, _ = user.get(res=Device, item=pc1_id)
pc2, _ = user.get(res=Device, item=pc2_id)
# PC1
assert {c['serialNumber'] for c in pc1['components']} == {'p1c2s', 'p1c3s'}
assert all(c['parent'] == pc1_id for c in pc1['components'])
assert tuple(get_events_info(pc1['events'])) == (
# id, type, components, snapshot
('Snapshot', ['p1c1s', 'p1c2s', 'p1c3s']), # first Snapshot1
('Remove', ['p1c2s']), # Remove Processor in Snapshot2
('Snapshot', ['p1c2s', 'p1c3s']) # This Snapshot3
)
# PC2
assert tuple(c['serialNumber'] for c in pc2['components']) == ('p2c1s',)
assert all(c['parent'] == pc2_id for c in pc2['components'])
assert tuple(e['type'] for e in pc2['events']) == (
'Snapshot', # Second Snapshot
'Remove' # the processor we added in 2.
)
# p1c2s has Snapshot, Remove and Add
p1c2s, _ = user.get(res=Device, item=pc1['components'][0]['id'])
assert tuple(get_events_info(p1c2s['events'])) == (
('Snapshot', ['p1c1s', 'p1c2s', 'p1c3s']), # First Snapshot to PC1
('Snapshot', ['p1c2s', 'p2c1s']), # Second Snapshot to PC2
('Remove', ['p1c2s']), # ...which caused p1c2s to be removed form PC1
('Snapshot', ['p1c2s', 'p1c3s']), # The third Snapshot to PC1
('Remove', ['p1c2s']) # ...which caused p1c2 to be removed from PC2
)
# We register the first device but without the processor,
# adding a graphic card and adding a new component
s4 = file('4-first-device-but-removing-processor.snapshot-and-adding-graphic-card')
snapshot_and_check(user, s4, perform_second_snapshot=False)
pc1, _ = user.get(res=Device, item=pc1_id)
pc2, _ = user.get(res=Device, item=pc2_id)
# PC 0: p1c3s, p1c4s. PC1: p2c1s
assert {c['serialNumber'] for c in pc1['components']} == {'p1c3s', 'p1c4s'}
assert all(c['parent'] == pc1_id for c in pc1['components'])
# This last Snapshot only
assert get_events_info(pc1['events'])[-1] == ('Snapshot', ['p1c3s', 'p1c4s'])
# PC2
# We haven't changed PC2
assert tuple(c['serialNumber'] for c in pc2['components']) == ('p2c1s',)
assert all(c['parent'] == pc2_id for c in pc2['components'])
def _test_snapshot_computer_no_hid(user: UserClient):
"""
Tests inserting a computer that doesn't generate a HID, neither
some of its components.
"""
# PC with 2 components. PC doesn't have HID and neither 1st component
s = file('basic.snapshot')
del s['device']['model']
del s['components'][0]['model']
user.post(s, res=Snapshot, status=NeedsId)
# The system tells us that it could not register the device because
# the device (computer) cannot generate a HID.
# In such case we need to specify an ``id`` so the system can
# recognize the device. The ``id`` can reference to the same
# device, it already existed in the DB, or to a placeholder,
# if the device is new in the DB.
user.post(s, res=Device)
s['device']['id'] = 1 # Assign the ID of the placeholder
user.post(s, res=Snapshot)
def test_snapshot_mismatch_id():
"""Tests uploading a device with an ID from another device."""
# Note that this won't happen as in this new algorithm_version
# the ID is not used in the Snapshot process
pass
def test_snapshot_tag_inner_tag(tag_id: str, user: UserClient, app: Devicehub):
"""Tests a posting Snapshot with a local tag."""
b = file('basic.snapshot')
b['device']['tags'] = [{'type': 'Tag', 'id': tag_id}]
snapshot_and_check(user, b, event_types=('WorkbenchRate',))
with app.app_context():
tag, *_ = Tag.query.all() # type: Tag
assert tag.device_id == 1, 'Tag should be linked to the first device'
def test_snapshot_tag_inner_tag_mismatch_between_tags_and_hid(user: UserClient, tag_id: str):
"""Ensures one device cannot 'steal' the tag from another one."""
pc1 = file('basic.snapshot')
pc1['device']['tags'] = [{'type': 'Tag', 'id': tag_id}]
user.post(pc1, res=Snapshot)
pc2 = file('1-device-with-components.snapshot')
user.post(pc2, res=Snapshot) # PC2 uploads well
pc2['device']['tags'] = [{'type': 'Tag', 'id': tag_id}] # Set tag from pc1 to pc2
user.post(pc2, res=Snapshot, status=MismatchBetweenTagsAndHid)
def test_erase(user: UserClient):
"""Tests a Snapshot with EraseSectors."""
s = file('erase-sectors.snapshot')
snapshot = snapshot_and_check(user, s, ('EraseSectors',), perform_second_snapshot=True)
storage, *_ = snapshot['components']
assert storage['type'] == 'SolidStateDrive', 'Components must be ordered by input order'
storage, _ = user.get(res=SolidStateDrive, item=storage['id']) # Let's get storage events too
# order: creation time descending
_snapshot1, erasure1, _snapshot2, erasure2 = storage['events']
assert erasure1['type'] == erasure2['type'] == 'EraseSectors'
assert _snapshot1['type'] == _snapshot2['type'] == 'Snapshot'
assert snapshot == user.get(res=Event, item=_snapshot2['id'])[0]
erasure, _ = user.get(res=EraseBasic, item=erasure1['id'])
assert len(erasure['steps']) == 2
assert erasure['steps'][0]['startTime'] == '2018-06-01T08:15:00+00:00'
assert erasure['steps'][0]['endTime'] == '2018-06-01T09:16:00+00:00'
assert erasure['steps'][1]['startTime'] == '2018-06-01T08:16:00+00:00'
assert erasure['steps'][1]['endTime'] == '2018-06-01T09:17:00+00:00'
assert erasure['device']['id'] == storage['id']
for step in erasure['steps']:
assert step['type'] == 'StepZero'
assert step['error'] is False
assert step['secureRandomSteps'] == 1
assert step['cleanWithZeros'] is True
assert 'num' not in step