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# Copyright (C) 2003 by Intevation GmbH
# Authors:
# Bernhard Herzog <bh@intevation.de>
#
# This program is free software under the GPL (>=v2)
# Read the file COPYING coming with the software for details.
"""Test Thuban.Model.wellknowntext"""
__version__ = "$Revision: 1605 $"
# $Source$
# $Id: test_wellknowntext.py 1605 2003-08-19 11:00:40Z bh $
import unittest
import support
support.initthuban()
from Thuban.Model.wellknowntext import parse_wkt_thuban
class TestWKT(unittest.TestCase, support.FloatComparisonMixin):
def test_point(self):
"""Test WKT parsing of POINT geometries"""
wkt = "SRID=1;POINT(6554860 967048)"
self.assertPointListEquals(parse_wkt_thuban(wkt),
[[(6554860, 967048)]])
def test_multilinestring(self):
"""Test WKT parsing of MULTILINESTRING geometries"""
wkt = ("MULTILINESTRING(("
"(6489598.51 867720.64,"
"6489593.90 867837.42),"
"(6489624.12 867714.83,"
"6489629.83 867621.31,"
"6489616.35 867552.57,"
"6489608.31 867507.10),"
"(6489902.89 868153.54,"
"6489880.85 868167.12,"
"6489837.96 868136.41,"
"6489788.94 868071.37)))")
self.assertPointListEquals(parse_wkt_thuban(wkt),
[[(6489598.51, 867720.64),
(6489593.90, 867837.42)],
[(6489624.12, 867714.83),
(6489629.83, 867621.31),
(6489616.35, 867552.57),
(6489608.31, 867507.10)],
[(6489902.89, 868153.54),
(6489880.85, 868167.12),
(6489837.96, 868136.41),
(6489788.94, 868071.37)]])
def test_polygon(self):
"""Test WKT parsing of POLYGON geometries"""
wkt = ("SRID=1;POLYGON((6545639.323878 961209.599602,"
"6545630.08526 961213.426864,6545617.99819 961184.249912,"
"6545627.236809 961180.422651,6545639.323878 961209.599602))")
self.assertPointListEquals(parse_wkt_thuban(wkt),
[[(6545639.323878, 961209.599602),
(6545630.08526, 961213.426864),
(6545617.99819, 961184.249912),
(6545627.236809, 961180.422651),
(6545639.323878, 961209.599602)]])
def test_errors(self):
"""Test WKT parsing error detection"""
# empty strings cause value errors
self.assertRaises(ValueError, parse_wkt_thuban, "")
# strings with only an SRID cause value errors
self.assertRaises(ValueError, parse_wkt_thuban, "SRID=1")
# Missing parentheses cause value errors
self.assertRaises(ValueError, parse_wkt_thuban, "POINT(10 20")
if __name__ == "__main__":
support.run_tests()
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