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# Copyright (c) 2002, 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 Thuban for details.
"""
Test loading a thuban session from a files generated by Thuban 0.2 and earlier
"""
__version__ = "$Revision: 1357 $"
# $Source$
# $Id: test_load_0_2.py 1357 2003-07-02 09:38:27Z jonathan $
import os
import unittest
import support
support.initthuban()
from Thuban.Model.load import load_session, parse_color
from Thuban.Model.color import Transparent
from Thuban.Model.classification import ClassGroupProperties, ClassGroupRange,\
ClassGroupSingleton, ClassGroupDefault
def filenames_equal(name1, name2):
"""Return true if the filenames name1 and name2 are equal.
On systems where it is available, simply use os.path.samefile,
otherwise return whether the normalized versions of the filenames
according to os.path.normpath are equal.
"""
if hasattr(os.path, "samefile"):
return os.path.samefile(name1, name2)
return os.path.normpath(name1) == os.path.normpath(name2)
class LoadSessionTest(support.FileLoadTestCase):
"""Base class for .thuban file loading tests
Basically the same as the FileLoadTestCase, except that all tests
use the '.thuban' extension by default and that setUp and tearDown
handle sessions.
"""
file_extension = ".thuban"
def setUp(self):
"""Create the test files"""
support.FileLoadTestCase.setUp(self)
self.session = None
def tearDown(self):
if self.session is not None:
self.session.Destroy()
self.session = None
class ClassificationTest(LoadSessionTest):
"""
Base class for tests that do some detailed checking of classifications
"""
def TestLayers(self, layers, expected):
TITLE = 0
NUM_GROUPS = 1
CLASSES = 2
GROUP_TYPE = 0
GROUP_DATA = 1
GROUP_LABEL = 2
GROUP_PROPS = 3
eq = self.assertEquals
eq(len(layers), len(expected))
for layer, data in zip(layers, expected):
eq(layer.Title(), data[TITLE])
clazz = layer.GetClassification()
eq(clazz.GetNumGroups(), data[NUM_GROUPS])
eq(clazz.GetNumGroups() + 1, len(data[CLASSES]))
i = 0
for group in clazz:
props = ClassGroupProperties()
props.SetLineColor(
parse_color(data[CLASSES][i][GROUP_PROPS][0]))
props.SetLineWidth(data[CLASSES][i][GROUP_PROPS][1])
props.SetFill(
parse_color(data[CLASSES][i][GROUP_PROPS][2]))
if data[CLASSES][i][GROUP_TYPE] == "default":
g = ClassGroupDefault(props, data[CLASSES][i][GROUP_LABEL])
elif data[CLASSES][i][GROUP_TYPE] == "range":
g = ClassGroupRange((data[CLASSES][i][GROUP_DATA][0],
data[CLASSES][i][GROUP_DATA][1]),
props, data[CLASSES][i][GROUP_LABEL])
elif data[CLASSES][i][GROUP_TYPE] == "single":
g = ClassGroupSingleton(data[CLASSES][i][GROUP_DATA],
props, data[CLASSES][i][GROUP_LABEL])
eq(group, g)
i += 1
class TestSingleLayer(LoadSessionTest):
file_contents = '''\
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE session SYSTEM "thuban.dtd">
<session title="single map&layer">
<map title="Test Map">
<projection>
<parameter value="zone=26"/>
<parameter value="proj=utm"/>
<parameter value="ellps=clrk66"/>
</projection>
<layer title="My Layer" stroke_width="1" fill="None"
filename="../../Data/iceland/political.shp"
stroke="#000000"/>
</map>
</session>
'''
def test(self):
"""Load a Thuban 0.2 session with a single map with a single layer"""
eq = self.assertEquals
session = load_session(self.filename())
self.session = session
# Check the title
eq(session.Title(), "single map&layer")
# the session has one map.
maps = session.Maps()
eq(len(maps), 1)
# Check the map's attributes
map = maps[0]
eq(map.Title(), "Test Map")
# the map has a single layer
layers = map.Layers()
eq(len(layers), 1)
# Check the layer attributes
layer = layers[0]
eq(layer.Title(), "My Layer")
self.failUnless(filenames_equal(layer.ShapeStore().FileName(),
os.path.join(self.temp_dir(),
os.pardir, os.pardir,
"Data", "iceland",
"political.shp")))
eq(layer.GetClassification().GetDefaultFill(), Transparent)
eq(layer.GetClassification().GetDefaultLineColor().hex(), "#000000")
eq(layer.Visible(), True)
self.session.Destroy()
self.session = None
class TestClassification(ClassificationTest):
file_contents = '''\
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE session SYSTEM "thuban.dtd">
<session title="single map&layer">
<map title="Test Map">
<projection>
<parameter value="zone=26"/>
<parameter value="proj=utm"/>
<parameter value="ellps=clrk66"/>
</projection>
<layer title="My Layer" stroke_width="1" fill="None"
filename="../../Data/iceland/political.shp"
stroke="#000000">
<classification field="POPYREG" field_type="string">
<clnull>
<cldata stroke="#000000" stroke_width="1" fill="None"/>
</clnull>
<clpoint value="1">
<cldata stroke="#000000" stroke_width="2" fill="None"/>
</clpoint>
<clpoint value="1">
<cldata stroke="#000000" stroke_width="10" fill="None"/>
</clpoint>
</classification>
</layer>
<layer title="My Layer 2" stroke_width="1" fill="None"
filename="../../Data/iceland/political.shp"
stroke="#000000">
<classification field="AREA" field_type="double">
<clnull>
<cldata stroke="#000000" stroke_width="2" fill="None"/>
</clnull>
<clrange min="0" max="1">
<cldata stroke="#111111" stroke_width="1" fill="None"/>
</clrange>
<clpoint value=".5">
<cldata stroke="#000000" stroke_width="1" fill="#111111"/>
</clpoint>
<clrange min="-1" max="0">
<cldata stroke="#000000" stroke_width="1" fill="None"/>
</clrange>
<clpoint value="-.5">
<cldata stroke="#000000" stroke_width="1" fill="None"/>
</clpoint>
</classification>
</layer>
</map>
</session>
'''
def test(self):
"""Load a Thuban 0.2 session with a map and classified layers."""
session = load_session(self.filename())
self.session = session
map = self.session.Maps()[0] # only one map in the sample
expected = [("My Layer", 2,
[("default", (), "",
("#000000", 1, "None")),
("single", "1", "",
("#000000", 2, "None")),
("single", "1", "",
("#000000", 10, "None"))]),
("My Layer 2", 4,
[("default", (), "",
("#000000", 2, "None")),
("range", (0, 1), "",
("#111111", 1, "None")),
("single", .5, "",
("#000000", 1, "#111111")),
("range", (-1, 0), "",
("#000000", 1, "None")),
("single", -.5, "",
("#000000", 1, "None"))])]
self.TestLayers(map.Layers(), expected)
if __name__ == "__main__":
unittest.main()
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