mapnik/tests/python_tests/postgis_test.py
2013-05-22 09:22:47 -07:00

656 lines
28 KiB
Python

#!/usr/bin/env python
from nose.tools import *
import atexit
import time
from utilities import execution_path
from subprocess import Popen, PIPE
import os, mapnik
from Queue import Queue
import threading
MAPNIK_TEST_DBNAME = 'mapnik-tmp-postgis-test-db'
POSTGIS_TEMPLATE_DBNAME = 'template_postgis'
SHAPEFILE = os.path.join(execution_path('.'),'../data/shp/world_merc.shp')
def setup():
# All of the paths used are relative, if we run the tests
# from another directory we need to chdir()
os.chdir(execution_path('.'))
def call(cmd,silent=False):
stdin, stderr = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE).communicate()
if not stderr:
return stdin.strip()
elif not silent and not 'NOTICE' in stderr:
raise RuntimeError(stderr.strip())
def psql_can_connect():
"""Test ability to connect to a postgis template db with no options.
Basically, to run these tests your user must have full read
access over unix sockets without supplying a password. This
keeps these tests simple and focused on postgis not on postgres
auth issues.
"""
try:
call('psql %s -c "select postgis_version()"' % POSTGIS_TEMPLATE_DBNAME)
return True
except RuntimeError, e:
print 'Notice: skipping postgis tests (connection)'
return False
def shp2pgsql_on_path():
"""Test for presence of shp2pgsql on the user path.
We require this program to load test data into a temporarily database.
"""
try:
call('shp2pgsql')
return True
except RuntimeError, e:
print 'Notice: skipping postgis tests (shp2pgsql)'
return False
def createdb_and_dropdb_on_path():
"""Test for presence of dropdb/createdb on user path.
We require these programs to setup and teardown the testing db.
"""
try:
call('createdb --help')
call('dropdb --help')
return True
except RuntimeError, e:
print 'Notice: skipping postgis tests (createdb/dropdb)'
return False
insert_table_1 = """
CREATE TABLE test(gid serial PRIMARY KEY, geom geometry);
INSERT INTO test(geom) values (GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test(geom) values (GeomFromEWKT('SRID=4326;POINT(-2 2)'));
INSERT INTO test(geom) values (GeomFromEWKT('SRID=4326;MULTIPOINT(2 1,1 2)'));
INSERT INTO test(geom) values (GeomFromEWKT('SRID=4326;LINESTRING(0 0,1 1,1 2)'));
INSERT INTO test(geom) values (GeomFromEWKT('SRID=4326;MULTILINESTRING((1 0,0 1,3 2),(3 2,5 4))'));
INSERT INTO test(geom) values (GeomFromEWKT('SRID=4326;POLYGON((0 0,4 0,4 4,0 4,0 0),(1 1, 2 1, 2 2, 1 2,1 1))'));
INSERT INTO test(geom) values (GeomFromEWKT('SRID=4326;MULTIPOLYGON(((1 1,3 1,3 3,1 3,1 1),(1 1,2 1,2 2,1 2,1 1)), ((-1 -1,-1 -2,-2 -2,-2 -1,-1 -1)))'));
INSERT INTO test(geom) values (GeomFromEWKT('SRID=4326;GEOMETRYCOLLECTION(POLYGON((1 1, 2 1, 2 2, 1 2,1 1)),POINT(2 3),LINESTRING(2 3,3 4))'));
"""
insert_table_2 = """
CREATE TABLE test2(manual_id int4 PRIMARY KEY, geom geometry);
INSERT INTO test2(manual_id, geom) values (0, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test2(manual_id, geom) values (1, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test2(manual_id, geom) values (1000, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test2(manual_id, geom) values (-1000, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test2(manual_id, geom) values (2147483647, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test2(manual_id, geom) values (-2147483648, GeomFromEWKT('SRID=4326;POINT(0 0)'));
"""
insert_table_3 = """
CREATE TABLE test3(non_id bigint, manual_id int4, geom geometry);
INSERT INTO test3(non_id, manual_id, geom) values (9223372036854775807, 0, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test3(non_id, manual_id, geom) values (9223372036854775807, 1, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test3(non_id, manual_id, geom) values (9223372036854775807, 1000, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test3(non_id, manual_id, geom) values (9223372036854775807, -1000, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test3(non_id, manual_id, geom) values (9223372036854775807, 2147483647, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test3(non_id, manual_id, geom) values (9223372036854775807, -2147483648, GeomFromEWKT('SRID=4326;POINT(0 0)'));
"""
insert_table_4 = """
CREATE TABLE test4(non_id int4, manual_id int8 PRIMARY KEY, geom geometry);
INSERT INTO test4(non_id, manual_id, geom) values (0, 0, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test4(non_id, manual_id, geom) values (0, 1, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test4(non_id, manual_id, geom) values (0, 1000, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test4(non_id, manual_id, geom) values (0, -1000, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test4(non_id, manual_id, geom) values (0, 2147483647, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test4(non_id, manual_id, geom) values (0, -2147483648, GeomFromEWKT('SRID=4326;POINT(0 0)'));
"""
insert_table_5 = """
CREATE TABLE test5(non_id int4, manual_id numeric PRIMARY KEY, geom geometry);
INSERT INTO test5(non_id, manual_id, geom) values (0, -1, GeomFromEWKT('SRID=4326;POINT(0 0)'));
INSERT INTO test5(non_id, manual_id, geom) values (0, 1, GeomFromEWKT('SRID=4326;POINT(0 0)'));
"""
insert_table_5b = '''
CREATE TABLE "tableWithMixedCase"(gid serial PRIMARY KEY, geom geometry);
INSERT INTO "tableWithMixedCase"(geom) values (ST_MakePoint(0,0));
INSERT INTO "tableWithMixedCase"(geom) values (ST_MakePoint(0,1));
INSERT INTO "tableWithMixedCase"(geom) values (ST_MakePoint(1,0));
INSERT INTO "tableWithMixedCase"(geom) values (ST_MakePoint(1,1));
'''
insert_table_6 = '''
CREATE TABLE test6(first_id int4, second_id int4,PRIMARY KEY (first_id,second_id), geom geometry);
INSERT INTO test6(first_id, second_id, geom) values (0, 0, GeomFromEWKT('SRID=4326;POINT(0 0)'));
'''
insert_table_7 = '''
CREATE TABLE test7(gid serial PRIMARY KEY, geom geometry);
INSERT INTO test7(gid, geom) values (1, GeomFromEWKT('SRID=4326;GEOMETRYCOLLECTION(MULTILINESTRING((10 10,20 20,10 40),(40 40,30 30,40 20,30 10)),LINESTRING EMPTY)'));
'''
insert_table_8 = '''
CREATE TABLE test8(gid serial PRIMARY KEY,int_field bigint, geom geometry);
INSERT INTO test8(gid, int_field, geom) values (1, 2147483648, ST_MakePoint(1,1));
INSERT INTO test8(gid, int_field, geom) values (2, 922337203685477580, ST_MakePoint(1,1));
'''
insert_table_9 = '''
CREATE TABLE test9(gid serial PRIMARY KEY, name varchar, geom geometry);
INSERT INTO test9(gid, name, geom) values (1, 'name', ST_MakePoint(1,1));
INSERT INTO test9(gid, name, geom) values (2, '', ST_MakePoint(1,1));
INSERT INTO test9(gid, name, geom) values (3, null, ST_MakePoint(1,1));
'''
insert_table_10 = '''
CREATE TABLE test10(gid serial PRIMARY KEY, bool_field boolean, geom geometry);
INSERT INTO test10(gid, bool_field, geom) values (1, TRUE, ST_MakePoint(1,1));
INSERT INTO test10(gid, bool_field, geom) values (2, FALSE, ST_MakePoint(1,1));
INSERT INTO test10(gid, bool_field, geom) values (3, null, ST_MakePoint(1,1));
'''
def postgis_setup():
call('dropdb %s' % MAPNIK_TEST_DBNAME,silent=True)
call('createdb -T %s %s' % (POSTGIS_TEMPLATE_DBNAME,MAPNIK_TEST_DBNAME),silent=False)
call('shp2pgsql -s 3857 -g geom -W LATIN1 %s world_merc | psql -q %s' % (SHAPEFILE,MAPNIK_TEST_DBNAME), silent=True)
call('''psql -q %s -c "CREATE TABLE \"empty\" (key serial);SELECT AddGeometryColumn('','empty','geom','-1','GEOMETRY',4);"''' % MAPNIK_TEST_DBNAME,silent=False)
call('''psql -q %s -c "%s"''' % (MAPNIK_TEST_DBNAME,insert_table_1),silent=False)
call('''psql -q %s -c "%s"''' % (MAPNIK_TEST_DBNAME,insert_table_2),silent=False)
call('''psql -q %s -c "%s"''' % (MAPNIK_TEST_DBNAME,insert_table_3),silent=False)
call('''psql -q %s -c "%s"''' % (MAPNIK_TEST_DBNAME,insert_table_4),silent=False)
call('''psql -q %s -c "%s"''' % (MAPNIK_TEST_DBNAME,insert_table_5),silent=False)
call("""psql -q %s -c '%s'""" % (MAPNIK_TEST_DBNAME,insert_table_5b),silent=False)
call('''psql -q %s -c "%s"''' % (MAPNIK_TEST_DBNAME,insert_table_6),silent=False)
call('''psql -q %s -c "%s"''' % (MAPNIK_TEST_DBNAME,insert_table_7),silent=False)
call('''psql -q %s -c "%s"''' % (MAPNIK_TEST_DBNAME,insert_table_8),silent=False)
call('''psql -q %s -c "%s"''' % (MAPNIK_TEST_DBNAME,insert_table_9),silent=False)
call('''psql -q %s -c "%s"''' % (MAPNIK_TEST_DBNAME,insert_table_10),silent=False)
def postgis_takedown():
pass
# fails as the db is in use: https://github.com/mapnik/mapnik/issues/960
#call('dropdb %s' % MAPNIK_TEST_DBNAME)
if 'postgis' in mapnik.DatasourceCache.plugin_names() \
and createdb_and_dropdb_on_path() \
and psql_can_connect() \
and shp2pgsql_on_path():
# initialize test database
postgis_setup()
def test_feature():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='world_merc')
fs = ds.featureset()
feature = fs.next()
eq_(feature['gid'],1)
eq_(feature['fips'],u'AC')
eq_(feature['iso2'],u'AG')
eq_(feature['iso3'],u'ATG')
eq_(feature['un'],28)
eq_(feature['name'],u'Antigua and Barbuda')
eq_(feature['area'],44)
eq_(feature['pop2005'],83039)
eq_(feature['region'],19)
eq_(feature['subregion'],29)
eq_(feature['lon'],-61.783)
eq_(feature['lat'],17.078)
eq_(ds.describe()['geometry_type'],mapnik.DataGeometryType.Polygon)
def test_subquery():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='(select * from world_merc) as w')
fs = ds.featureset()
feature = fs.next()
eq_(feature['gid'],1)
eq_(feature['fips'],u'AC')
eq_(feature['iso2'],u'AG')
eq_(feature['iso3'],u'ATG')
eq_(feature['un'],28)
eq_(feature['name'],u'Antigua and Barbuda')
eq_(feature['area'],44)
eq_(feature['pop2005'],83039)
eq_(feature['region'],19)
eq_(feature['subregion'],29)
eq_(feature['lon'],-61.783)
eq_(feature['lat'],17.078)
eq_(ds.describe()['geometry_type'],mapnik.DataGeometryType.Polygon)
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='(select gid,geom,fips as _fips from world_merc) as w')
fs = ds.featureset()
feature = fs.next()
eq_(feature['gid'],1)
eq_(feature['_fips'],u'AC')
eq_(len(feature),2)
eq_(ds.describe()['geometry_type'],mapnik.DataGeometryType.Polygon)
def test_empty_db():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='empty')
fs = ds.featureset()
feature = None
try:
feature = fs.next()
except StopIteration:
pass
eq_(feature,None)
eq_(ds.describe()['geometry_type'],mapnik.DataGeometryType.Collection)
def test_geometry_detection():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='test',
geometry_field='geom')
eq_(ds.describe()['geometry_type'],mapnik.DataGeometryType.Collection)
# will fail with postgis 2.0 because it automatically adds a geometry_columns entry
#ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='test',
# geometry_field='geom',
# row_limit=1)
#eq_(ds.describe()['geometry_type'],mapnik.DataGeometryType.Point)
@raises(RuntimeError)
def test_that_nonexistant_query_field_throws(**kwargs):
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='empty')
eq_(len(ds.fields()),1)
eq_(ds.fields(),['key'])
eq_(ds.field_types(),['int'])
query = mapnik.Query(ds.envelope())
for fld in ds.fields():
query.add_property_name(fld)
# also add an invalid one, triggering throw
query.add_property_name('bogus')
fs = ds.features(query)
def test_auto_detection_of_unique_feature_id_32_bit():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='test2',
geometry_field='geom',
autodetect_key_field=True)
fs = ds.featureset()
eq_(fs.next()['manual_id'],0)
eq_(fs.next()['manual_id'],1)
eq_(fs.next()['manual_id'],1000)
eq_(fs.next()['manual_id'],-1000)
eq_(fs.next()['manual_id'],2147483647)
eq_(fs.next()['manual_id'],-2147483648)
fs = ds.featureset()
eq_(fs.next().id(),0)
eq_(fs.next().id(),1)
eq_(fs.next().id(),1000)
eq_(fs.next().id(),-1000)
eq_(fs.next().id(),2147483647)
eq_(fs.next().id(),-2147483648)
def test_auto_detection_will_fail_since_no_primary_key():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='test3',
geometry_field='geom',
autodetect_key_field=False)
fs = ds.featureset()
feat = fs.next()
eq_(feat['manual_id'],0)
# will fail: https://github.com/mapnik/mapnik/issues/895
#eq_(feat['non_id'],9223372036854775807)
eq_(fs.next()['manual_id'],1)
eq_(fs.next()['manual_id'],1000)
eq_(fs.next()['manual_id'],-1000)
eq_(fs.next()['manual_id'],2147483647)
eq_(fs.next()['manual_id'],-2147483648)
# since no valid primary key will be detected the fallback
# is auto-incrementing counter
fs = ds.featureset()
eq_(fs.next().id(),1)
eq_(fs.next().id(),2)
eq_(fs.next().id(),3)
eq_(fs.next().id(),4)
eq_(fs.next().id(),5)
eq_(fs.next().id(),6)
@raises(RuntimeError)
def test_auto_detection_will_fail_and_should_throw():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='test3',
geometry_field='geom',
autodetect_key_field=True)
fs = ds.featureset()
def test_auto_detection_of_unique_feature_id_64_bit():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='test4',
geometry_field='geom',
autodetect_key_field=True)
fs = ds.featureset()
eq_(fs.next()['manual_id'],0)
eq_(fs.next()['manual_id'],1)
eq_(fs.next()['manual_id'],1000)
eq_(fs.next()['manual_id'],-1000)
eq_(fs.next()['manual_id'],2147483647)
eq_(fs.next()['manual_id'],-2147483648)
fs = ds.featureset()
eq_(fs.next().id(),0)
eq_(fs.next().id(),1)
eq_(fs.next().id(),1000)
eq_(fs.next().id(),-1000)
eq_(fs.next().id(),2147483647)
eq_(fs.next().id(),-2147483648)
def test_disabled_auto_detection_and_subquery():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='''(select geom, 'a'::varchar as name from test2) as t''',
geometry_field='geom',
autodetect_key_field=False)
fs = ds.featureset()
feat = fs.next()
eq_(feat.id(),1)
eq_(feat['name'],'a')
feat = fs.next()
eq_(feat.id(),2)
eq_(feat['name'],'a')
feat = fs.next()
eq_(feat.id(),3)
eq_(feat['name'],'a')
feat = fs.next()
eq_(feat.id(),4)
eq_(feat['name'],'a')
feat = fs.next()
eq_(feat.id(),5)
eq_(feat['name'],'a')
feat = fs.next()
eq_(feat.id(),6)
eq_(feat['name'],'a')
def test_auto_detection_and_subquery_including_key():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='''(select geom, manual_id from test2) as t''',
geometry_field='geom',
autodetect_key_field=True)
fs = ds.featureset()
eq_(fs.next()['manual_id'],0)
eq_(fs.next()['manual_id'],1)
eq_(fs.next()['manual_id'],1000)
eq_(fs.next()['manual_id'],-1000)
eq_(fs.next()['manual_id'],2147483647)
eq_(fs.next()['manual_id'],-2147483648)
fs = ds.featureset()
eq_(fs.next().id(),0)
eq_(fs.next().id(),1)
eq_(fs.next().id(),1000)
eq_(fs.next().id(),-1000)
eq_(fs.next().id(),2147483647)
eq_(fs.next().id(),-2147483648)
@raises(RuntimeError)
def test_auto_detection_of_invalid_numeric_primary_key():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='''(select geom, manual_id::numeric from test2) as t''',
geometry_field='geom',
autodetect_key_field=True)
@raises(RuntimeError)
def test_auto_detection_of_invalid_multiple_keys():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='''test6''',
geometry_field='geom',
autodetect_key_field=True)
@raises(RuntimeError)
def test_auto_detection_of_invalid_multiple_keys_subquery():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='''(select first_id,second_id,geom from test6) as t''',
geometry_field='geom',
autodetect_key_field=True)
def test_manually_specified_feature_id_field():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='test4',
geometry_field='geom',
key_field='manual_id',
autodetect_key_field=True)
fs = ds.featureset()
eq_(fs.next()['manual_id'],0)
eq_(fs.next()['manual_id'],1)
eq_(fs.next()['manual_id'],1000)
eq_(fs.next()['manual_id'],-1000)
eq_(fs.next()['manual_id'],2147483647)
eq_(fs.next()['manual_id'],-2147483648)
fs = ds.featureset()
eq_(fs.next().id(),0)
eq_(fs.next().id(),1)
eq_(fs.next().id(),1000)
eq_(fs.next().id(),-1000)
eq_(fs.next().id(),2147483647)
eq_(fs.next().id(),-2147483648)
def test_numeric_type_feature_id_field():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='test5',
geometry_field='geom',
autodetect_key_field=False)
fs = ds.featureset()
eq_(fs.next()['manual_id'],-1)
eq_(fs.next()['manual_id'],1)
fs = ds.featureset()
eq_(fs.next().id(),1)
eq_(fs.next().id(),2)
def test_querying_table_with_mixed_case():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='"tableWithMixedCase"',
geometry_field='geom',
autodetect_key_field=True)
fs = ds.featureset()
for id in range(1,5):
eq_(fs.next().id(),id)
def test_querying_subquery_with_mixed_case():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='(SeLeCt * FrOm "tableWithMixedCase") as MixedCaseQuery',
geometry_field='geom',
autodetect_key_field=True)
fs = ds.featureset()
for id in range(1,5):
eq_(fs.next().id(),id)
def test_bbox_token_in_subquery1():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='''
(SeLeCt * FrOm "tableWithMixedCase" where geom && !bbox! ) as MixedCaseQuery''',
geometry_field='geom',
autodetect_key_field=True)
fs = ds.featureset()
for id in range(1,5):
eq_(fs.next().id(),id)
def test_bbox_token_in_subquery2():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='''
(SeLeCt * FrOm "tableWithMixedCase" where ST_Intersects(geom,!bbox!) ) as MixedCaseQuery''',
geometry_field='geom',
autodetect_key_field=True)
fs = ds.featureset()
for id in range(1,5):
eq_(fs.next().id(),id)
def test_empty_geom():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='test7',
geometry_field='geom')
fs = ds.featureset()
eq_(fs.next()['gid'],1)
def create_ds():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,
table='test',
max_size=20)
fs = ds.all_features()
def test_threaded_create(NUM_THREADS=100):
for i in range(NUM_THREADS):
t = threading.Thread(target=create_ds)
t.start()
t.join()
def create_ds_and_error():
try:
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,
table='asdfasdfasdfasdfasdf',
max_size=20)
fs = ds.all_features()
except: pass
def test_threaded_create2(NUM_THREADS=10):
for i in range(NUM_THREADS):
t = threading.Thread(target=create_ds_and_error)
t.start()
t.join()
def test_that_64bit_int_fields_work():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,
table='test8',
geometry_field='geom')
eq_(len(ds.fields()),2)
eq_(ds.fields(),['gid','int_field'])
eq_(ds.field_types(),['int','int'])
fs = ds.featureset()
feat = fs.next()
eq_(feat.id(),1)
eq_(feat['gid'],1)
eq_(feat['int_field'],2147483648)
feat = fs.next()
eq_(feat.id(),2)
eq_(feat['gid'],2)
eq_(feat['int_field'],922337203685477580)
def test_persist_connection_off():
# NOTE: max_size should be equal or greater than
# the pool size. There's currently no API to
# check nor set that size, but the current
# default is 20, so we use that value. See
# http://github.com/mapnik/mapnik/issues/863
max_size = 20
for i in range(0, max_size+1):
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,
max_size=1, # unused
persist_connection=False,
table='(select ST_MakePoint(0,0) as g, pg_backend_pid() as p, 1 as v) as w',
geometry_field='g')
fs = ds.featureset()
eq_(fs.next()['v'], 1)
def test_null_comparision():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='test9',
geometry_field='geom')
fs = ds.featureset()
feat = fs.next()
eq_(feat['gid'],1)
eq_(feat['name'],'name')
eq_(mapnik.Expression("[name] = 'name'").evaluate(feat),True)
eq_(mapnik.Expression("[name] = ''").evaluate(feat),False)
eq_(mapnik.Expression("[name] = null").evaluate(feat),False)
eq_(mapnik.Expression("[name] = true").evaluate(feat),False)
eq_(mapnik.Expression("[name] = false").evaluate(feat),False)
eq_(mapnik.Expression("[name] != 'name'").evaluate(feat),False)
eq_(mapnik.Expression("[name] != ''").evaluate(feat),True)
eq_(mapnik.Expression("[name] != null").evaluate(feat),True)
eq_(mapnik.Expression("[name] != true").evaluate(feat),True)
eq_(mapnik.Expression("[name] != false").evaluate(feat),True)
feat = fs.next()
eq_(feat['gid'],2)
eq_(feat['name'],'')
eq_(mapnik.Expression("[name] = 'name'").evaluate(feat),False)
eq_(mapnik.Expression("[name] = ''").evaluate(feat),True)
eq_(mapnik.Expression("[name] = null").evaluate(feat),False)
eq_(mapnik.Expression("[name] = true").evaluate(feat),False)
eq_(mapnik.Expression("[name] = false").evaluate(feat),False)
eq_(mapnik.Expression("[name] != 'name'").evaluate(feat),True)
eq_(mapnik.Expression("[name] != ''").evaluate(feat),False)
eq_(mapnik.Expression("[name] != null").evaluate(feat),True)
eq_(mapnik.Expression("[name] != true").evaluate(feat),True)
eq_(mapnik.Expression("[name] != false").evaluate(feat),True)
feat = fs.next()
eq_(feat['gid'],3)
eq_(feat['name'],None) # null
eq_(mapnik.Expression("[name] = 'name'").evaluate(feat),False)
eq_(mapnik.Expression("[name] = ''").evaluate(feat),False)
eq_(mapnik.Expression("[name] = null").evaluate(feat),True)
eq_(mapnik.Expression("[name] = true").evaluate(feat),False)
eq_(mapnik.Expression("[name] = false").evaluate(feat),False)
eq_(mapnik.Expression("[name] != 'name'").evaluate(feat),True)
eq_(mapnik.Expression("[name] != ''").evaluate(feat),True)
eq_(mapnik.Expression("[name] != null").evaluate(feat),False)
eq_(mapnik.Expression("[name] != true").evaluate(feat),True)
eq_(mapnik.Expression("[name] != false").evaluate(feat),True)
def test_null_comparision2():
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='test10',
geometry_field='geom')
fs = ds.featureset()
feat = fs.next()
eq_(feat['gid'],1)
eq_(feat['bool_field'],True)
eq_(mapnik.Expression("[bool_field] = 'name'").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] = ''").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] = null").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] = true").evaluate(feat),True)
eq_(mapnik.Expression("[bool_field] = false").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] != 'name'").evaluate(feat),True)
eq_(mapnik.Expression("[bool_field] != ''").evaluate(feat),True) # in 2.1.x used to be False
eq_(mapnik.Expression("[bool_field] != null").evaluate(feat),True) # in 2.1.x used to be False
eq_(mapnik.Expression("[bool_field] != true").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] != false").evaluate(feat),True)
feat = fs.next()
eq_(feat['gid'],2)
eq_(feat['bool_field'],False)
eq_(mapnik.Expression("[bool_field] = 'name'").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] = ''").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] = null").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] = true").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] = false").evaluate(feat),True)
eq_(mapnik.Expression("[bool_field] != 'name'").evaluate(feat),True)
eq_(mapnik.Expression("[bool_field] != ''").evaluate(feat),True)
eq_(mapnik.Expression("[bool_field] != null").evaluate(feat),True) # in 2.1.x used to be False
eq_(mapnik.Expression("[bool_field] != true").evaluate(feat),True)
eq_(mapnik.Expression("[bool_field] != false").evaluate(feat),False)
feat = fs.next()
eq_(feat['gid'],3)
eq_(feat['bool_field'],None) # null
eq_(mapnik.Expression("[bool_field] = 'name'").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] = ''").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] = null").evaluate(feat),True)
eq_(mapnik.Expression("[bool_field] = true").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] = false").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] != 'name'").evaluate(feat),True) # in 2.1.x used to be False
eq_(mapnik.Expression("[bool_field] != ''").evaluate(feat),True) # in 2.1.x used to be False
eq_(mapnik.Expression("[bool_field] != null").evaluate(feat),False)
eq_(mapnik.Expression("[bool_field] != true").evaluate(feat),True) # in 2.1.x used to be False
eq_(mapnik.Expression("[bool_field] != false").evaluate(feat),True) # in 2.1.x used to be False
# https://github.com/mapnik/mapnik/issues/1816
def test_exception_message_reporting():
try:
ds = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='doesnotexist')
except Exception, e:
eq_(e.message != 'unidentifiable C++ exception', True)
def test_null_id_field():
opts = {'type':'postgis',
'dbname':MAPNIK_TEST_DBNAME,
'geometry_field':'geom',
'table':"(select null::bigint as osm_id, GeomFromEWKT('SRID=4326;POINT(0 0)') as geom) as tmp"}
ds = mapnik.Datasource(**opts)
fs = ds.featureset()
feat = fs.next()
eq_(feat.id(),1L)
eq_(feat['osm_id'],None)
@raises(StopIteration)
def test_null_key_field():
opts = {'type':'postgis',
"key_field": 'osm_id',
'dbname':MAPNIK_TEST_DBNAME,
'geometry_field':'geom',
'table':"(select null::bigint as osm_id, GeomFromEWKT('SRID=4326;POINT(0 0)') as geom) as tmp"}
ds = mapnik.Datasource(**opts)
fs = ds.featureset()
feat = fs.next() ## should throw since key_field is null: StopIteration: No more features.
atexit.register(postgis_takedown)
if __name__ == "__main__":
setup()
[eval(run)() for run in dir() if 'test_' in run]