def add_line_of_cells_and_scan_lac(self):
from ichnaea.tasks import cell_location_update, scan_lacs
session = self.db_master_session
big = 10000000
small = big / 10
keys = dict(radio=1, mcc=1, mnc=1, lac=1)
measures = [
CellMeasure(lat=ctr + xd, lon=ctr + yd, cid=cell, **keys)
for cell in range(0, 10) for ctr in [cell * big]
for (xd, yd) in [(small, small), (small,
-small), (-small,
small), (-small,
-small)]
]
session.add_all(measures)
cells = [
Cell(lat=ctr,
lon=ctr,
cid=cell,
new_measures=4,
total_measures=1,
**keys) for cell in range(0, 10) for ctr in [cell * big]
]
session.add_all(cells)
session.commit()
result = cell_location_update.delay(min_new=0,
max_new=9999,
batch=len(measures))
self.assertEqual(result.get(), (len(cells), 0))
scan_lacs.delay()
def add_line_of_cells_and_scan_lac(self):
from ichnaea.tasks import cell_location_update, scan_lacs
session = self.db_master_session
big = 1.0
small = big / 10
keys = dict(radio=1, mcc=1, mnc=1, lac=1)
measures = [
CellMeasure(lat=ctr + xd, lon=ctr + yd, cid=cell, **keys)
for cell in range(10)
for ctr in [cell * big]
for (xd, yd) in [(small, small),
(small, -small),
(-small, small),
(-small, -small)]
]
session.add_all(measures)
cells = [
Cell(lat=ctr, lon=ctr, cid=cell,
new_measures=4, total_measures=1, **keys)
for cell in range(10)
for ctr in [cell * big]
]
session.add_all(cells)
session.commit()
result = cell_location_update.delay(min_new=0,
max_new=9999,
batch=len(measures))
self.assertEqual(result.get(), (len(cells), 0))
scan_lacs.delay()
def test_cell_removal_updates_lac(self):
from ichnaea.tasks import remove_cell, scan_lacs
session = self.db_master_session
keys = dict(radio=1, mcc=1, mnc=1, lac=1)
# setup: build LAC as above
self.add_line_of_cells_and_scan_lac()
# confirm we got one
lac = session.query(Cell).filter(
Cell.lac == 1,
Cell.cid == CELLID_LAC).first()
self.assertEqual(lac.lat, 4.5)
self.assertEqual(lac.lon, 4.5)
self.assertEqual(lac.range, 723001)
# Remove cells one by one checking that the LAC
# changes shape along the way.
steps = [
((5.0, 5.0), 644242),
((5.5, 5.5), 565475),
((6.0, 6.0), 486721),
((6.5, 6.5), 408000),
((7.0, 7.0), 329334),
((7.5, 7.5), 250743),
((8.0, 8.0), 172249),
((8.5, 8.5), 93871),
((9.0, 9.0), 15630),
]
for i in range(9):
session.expire(lac)
k = CellKey(cid=i, **keys)
result = remove_cell.delay([k])
self.assertEqual(1, result.get())
result = scan_lacs.delay()
self.assertEqual(1, result.get())
lac = session.query(Cell).filter(
Cell.lac == 1,
Cell.cid == CELLID_LAC).first()
self.assertEqual(lac.lat, steps[i][0][0])
self.assertEqual(lac.lon, steps[i][0][1])
self.assertEqual(lac.range, steps[i][1])
# Remove final cell, check LAC is gone
k = CellKey(cid=9, **keys)
result = remove_cell.delay([k])
self.assertEqual(1, result.get())
result = scan_lacs.delay()
self.assertEqual(0, result.get())
lac = session.query(Cell).filter(
Cell.lac == 1,
Cell.cid == CELLID_LAC).first()
self.assertEqual(lac, None)
def test_cell_removal_updates_lac(self):
from ichnaea.tasks import remove_cell, scan_lacs
session = self.db_master_session
keys = dict(radio=1, mcc=1, mnc=1, lac=1)
# setup: build LAC as above
self.add_line_of_cells_and_scan_lac()
# confirm we got one
lac = session.query(Cell).filter(Cell.lac == 1,
Cell.cid == CELLID_LAC).first()
self.assertEqual(lac.lat, 45000000)
self.assertEqual(lac.lon, 45000000)
self.assertEqual(lac.range, 723001)
# Remove cells one by one checking that the LAC
# changes shape along the way.
steps = [
((50000000, 50000000), 644242),
((55000000, 55000000), 565475),
((60000000, 60000000), 486721),
((65000000, 65000000), 408000),
((70000000, 70000000), 329334),
((75000000, 75000000), 250743),
((80000000, 80000000), 172249),
((85000000, 85000000), 93871),
((90000000, 90000000), 15630),
]
for i in range(0, 9):
session.expire(lac)
k = CellKey(cid=i, **keys)
result = remove_cell.delay([k])
self.assertEqual(1, result.get())
result = scan_lacs.delay()
self.assertEqual(1, result.get())
lac = session.query(Cell).filter(Cell.lac == 1,
Cell.cid == CELLID_LAC).first()
self.assertEqual(lac.lat, steps[i][0][0])
self.assertEqual(lac.lon, steps[i][0][1])
self.assertEqual(lac.range, steps[i][1])
# Remove final cell, check LAC is gone
k = CellKey(cid=9, **keys)
result = remove_cell.delay([k])
self.assertEqual(1, result.get())
result = scan_lacs.delay()
self.assertEqual(0, result.get())
lac = session.query(Cell).filter(Cell.lac == 1,
Cell.cid == CELLID_LAC).first()
self.assertEqual(lac, None)
def test_cell_lac_asymmetric(self):
from ichnaea.tasks import cell_location_update, scan_lacs
session = self.db_master_session
big = 1000000
small = big / 10
keys = dict(radio=1, mcc=1, mnc=1, lac=1)
measures = [
CellMeasure(lat=ctr + xd, lon=ctr + yd, cid=cell, **keys)
for cell in range(0, 6) for ctr in [(2**cell) * big]
for (xd, yd) in [(small, small), (small,
-small), (-small,
small), (-small,
-small)]
]
session.add_all(measures)
cells = [
Cell(lat=ctr,
lon=ctr,
cid=cell,
new_measures=4,
total_measures=1,
**keys) for cell in range(0, 6) for ctr in [(2**cell) * big]
]
session.add_all(cells)
session.commit()
result = cell_location_update.delay(min_new=0,
max_new=9999,
batch=len(measures))
self.assertEqual(result.get(), (len(cells), 0))
scan_lacs.delay()
lac = session.query(Cell).filter(Cell.lac == 1,
Cell.cid == CELLID_LAC).first()
# We produced a sequence of 0.02-degree-on-a-side
# cell bounding boxes centered at
# [0, 0.2, 0.4, 0.8, 1.6, 3.2] degrees.
# So the lower-left corner is at (-0.01, -0.01)
# and the upper-right corner is at (3.21, 3.21)
# we should therefore see a LAC centroid at (1.05, 1.05)
# with a range of 339.540m
self.assertEqual(lac.lat, 10500000)
self.assertEqual(lac.lon, 10500000)
self.assertEqual(lac.range, 339540)
def test_cell_lac_asymmetric(self):
from ichnaea.tasks import cell_location_update, scan_lacs
session = self.db_master_session
big = 0.1
small = big / 10
keys = dict(radio=1, mcc=1, mnc=1, lac=1)
measures = [
CellMeasure(lat=ctr + xd, lon=ctr + yd, cid=cell, **keys)
for cell in range(6)
for ctr in [(2 ** cell) * big]
for (xd, yd) in [(small, small),
(small, -small),
(-small, small),
(-small, -small)]
]
session.add_all(measures)
cells = [
Cell(lat=ctr, lon=ctr, cid=cell,
new_measures=4, total_measures=1, **keys)
for cell in range(6)
for ctr in [(2 ** cell) * big]
]
session.add_all(cells)
session.commit()
result = cell_location_update.delay(min_new=0,
max_new=9999,
batch=len(measures))
self.assertEqual(result.get(), (len(cells), 0))
scan_lacs.delay()
lac = session.query(Cell).filter(
Cell.lac == 1,
Cell.cid == CELLID_LAC).first()
# We produced a sequence of 0.02-degree-on-a-side
# cell bounding boxes centered at
# [0, 0.2, 0.4, 0.8, 1.6, 3.2] degrees.
# So the lower-left corner is at (-0.01, -0.01)
# and the upper-right corner is at (3.21, 3.21)
# we should therefore see a LAC centroid at (1.05, 1.05)
# with a range of 339.540m
self.assertEqual(lac.lat, 1.05)
self.assertEqual(lac.lon, 1.05)
self.assertEqual(lac.range, 339540)
def test_scan_lacs_race_with_cell_location_update(self):
from ichnaea.tasks import cell_location_update, scan_lacs
session = self.db_master_session
# First batch of cell measurements for CID 1
keys = dict(radio=1, mcc=1, mnc=1, lac=1, cid=1)
cell = Cell(new_measures=4, total_measures=1, **keys)
measures = [
CellMeasure(lat=1.0, lon=1.0, **keys),
CellMeasure(lat=1.0, lon=1.0, **keys),
CellMeasure(lat=1.0, lon=1.0, **keys),
CellMeasure(lat=1.0, lon=1.0, **keys),
]
session.add(cell)
session.add_all(measures)
session.commit()
# Periodic cell_location_update runs and updates CID 1
# to have a location, inserts LAC 1 with new_measures=1
# which will be picked up by the next scan_lac.
result = cell_location_update.delay(min_new=1)
self.assertEqual(result.get(), (1, 0))
# Second batch of cell measurements for CID 2
keys['cid'] = 2
cell = Cell(new_measures=4, total_measures=1, **keys)
measures = [
CellMeasure(lat=1.0, lon=1.0, **keys),
CellMeasure(lat=1.0, lon=1.0, **keys),
CellMeasure(lat=1.0, lon=1.0, **keys),
CellMeasure(lat=1.0, lon=1.0, **keys),
]
session.add(cell)
session.add_all(measures)
session.commit()
# Periodic LAC scan runs, picking up LAC 1; this could
# accidentally pick up CID 2, but it should not since it
# has not had its location updated yet. If there's no
# exception here, CID 2 is properly ignored.
scan_lacs.delay()
