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# Copyright (c) 2002, 2003, 2004 by Intevation GmbH |
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# Authors: |
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# Bernhard Herzog <[email protected]> |
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# |
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# This program is free software under the GPL (>=v2) |
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# Read the file COPYING coming with Thuban for details. |
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|
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""" |
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Test saving a thuban session as XML |
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""" |
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|
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__version__ = "$Revision$" |
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# $Source$ |
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# $Id$ |
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|
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import os |
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import unittest |
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from StringIO import StringIO |
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|
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import xmlsupport |
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import postgissupport |
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|
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import support |
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support.initthuban() |
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|
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import dbflib |
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|
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from Thuban.Lib.fileutil import relative_filename |
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from Thuban.Model.save import XMLWriter, save_session, sort_data_stores |
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from Thuban.Model.session import Session |
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from Thuban.Model.map import Map |
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from Thuban.Model.layer import Layer, RasterLayer |
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from Thuban.Model.proj import Projection |
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from Thuban.Model.table import DBFTable |
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from Thuban.Model.transientdb import TransientJoinedTable |
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from Thuban.Model.data import DerivedShapeStore |
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|
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from Thuban.Model.classification import ClassGroupSingleton, ClassGroupRange, \ |
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ClassGroupProperties |
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|
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from Thuban.Model.range import Range |
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|
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from Thuban.Model.postgisdb import PostGISConnection, PostGISShapeStore |
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|
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|
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class XMLWriterTest(unittest.TestCase): |
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|
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def testEncode(self): |
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"""Test XMLWriter.encode""" |
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writer = XMLWriter() |
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eq = self.assertEquals |
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|
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eq(writer.encode("hello world"), "hello world") |
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eq(writer.encode(unicode("hello world")), unicode("hello world")) |
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|
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eq(writer.encode("\x80\x90\xc2\x100"), |
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"\xc2\x80\xc2\x90\xc3\x82\x100") |
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eq(writer.encode(u"\x80\x90\xc2\x100"), |
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"\xc2\x80\xc2\x90\xc3\x82\x100") |
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eq(writer.encode(u"\xFF5E"), "\xc3\xbf5E") |
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|
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eq(writer.encode('&"\'<>'), "&"'<>") |
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eq(writer.encode(unicode('&"\'<>')), "&"'<>") |
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|
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class SaveSessionTest(unittest.TestCase, support.FileTestMixin, |
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xmlsupport.ValidationTest): |
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|
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dtd = "http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd" |
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thubanids = [((dtd, n), (None, "id")) for n in |
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["fileshapesource", "filetable", "jointable", |
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"derivedshapesource", "dbshapesource", "dbconnection"]] |
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thubanidrefs = [((dtd, n), (None, m)) for n, m in |
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[("layer", "shapestore"), |
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("jointable", "left"), |
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("jointable", "right"), |
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("derivedshapesource", "table"), |
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("derivedshapesource", "shapesource"), |
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("dbshapesource", "dbconn")]] |
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del n, m, dtd |
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|
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def tearDown(self): |
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"""Call self.session.Destroy |
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|
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Test cases that create session should bind it to self.session so |
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that it gets destroyed properly |
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""" |
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if hasattr(self, "session"): |
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self.session.Destroy() |
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self.session = None |
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|
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def compare_xml(self, xml1, xml2): |
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list1 = xmlsupport.sax_eventlist(xml1, ids = self.thubanids, |
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idrefs = self.thubanidrefs) |
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list2 = xmlsupport.sax_eventlist(xml2, ids = self.thubanids, |
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idrefs = self.thubanidrefs) |
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if list1 != list2: |
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for a, b in zip(list1, list2): |
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if a != b: |
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self.fail("%r != %r" % (a, b)) |
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|
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|
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def testEmptySession(self): |
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"""Save an empty session""" |
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session = Session("empty session") |
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filename = self.temp_file_name("save_emptysession.thuban") |
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save_session(session, filename) |
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session.Destroy() |
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|
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file = open(filename) |
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written_contents = file.read() |
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file.close() |
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self.compare_xml(written_contents, |
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'<?xml version="1.0" encoding="UTF-8"?>\n' |
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'<!DOCTYPE session SYSTEM "thuban-1.1.dtd">\n' |
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'<session title="empty session" ' |
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'xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd">' |
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'\n</session>\n') |
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|
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self.validate_data(written_contents) |
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|
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def testSingleLayer(self): |
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"""Save a session with a single map with a single layer""" |
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# deliberately put an apersand in the title :) |
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session = Session("single map&layer") |
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proj = Projection(["proj=utm", "zone=27", "ellps=WGS84", |
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"datum=WGS84", "units=m"], |
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name = "WGS 84 / UTM zone 27N", |
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epsg = "32627") |
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map = Map("Test Map", projection = proj) |
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session.AddMap(map) |
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# use shapefile from the example data |
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shpfile = os.path.join(os.path.dirname(__file__), |
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os.pardir, "Data", "iceland", "political.shp") |
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layer = Layer("My Layer", session.OpenShapefile(shpfile)) |
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map.AddLayer(layer) |
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|
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filename = self.temp_file_name("save_singlemap.thuban") |
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save_session(session, filename) |
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|
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file = open(filename) |
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written_contents = file.read() |
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file.close() |
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expected_template = '''<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE session SYSTEM "thuban-1.1.dtd"> |
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<session title="single map&layer" |
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xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"> |
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<fileshapesource id="D1" |
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filename="../../Data/iceland/political.shp" |
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filetype="shapefile"/> |
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<map title="Test Map"> |
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<projection epsg="32627" name="WGS 84 / UTM zone 27N"> |
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<parameter value="proj=utm"/> |
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<parameter value="zone=27"/> |
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<parameter value="ellps=WGS84"/> |
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<parameter value="datum=WGS84"/> |
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<parameter value="units=m"/> |
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</projection> |
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<layer title="My Layer" shapestore="D1" |
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fill="None" stroke="#000000" stroke_width="1" visible="%s"/> |
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</map> |
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</session>''' |
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|
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expected_contents = expected_template % "true" |
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|
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self.compare_xml(written_contents, expected_contents) |
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|
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self.validate_data(written_contents) |
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|
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# Repeat with an invisible layer |
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layer.SetVisible(False) |
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save_session(session, filename) |
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|
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file = open(filename) |
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written_contents = file.read() |
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file.close() |
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expected_contents = expected_template % "false" |
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self.compare_xml(written_contents, expected_contents) |
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self.validate_data(written_contents) |
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|
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session.Destroy() |
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|
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def testLayerProjection(self): |
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"""Test saving layers with projections""" |
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# deliberately put an apersand in the title :) |
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session = self.session = Session("single map&layer") |
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proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"]) |
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map = Map("Test Map", projection = proj) |
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session.AddMap(map) |
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# use shapefile from the example data |
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shpfile = os.path.join(os.path.dirname(__file__), |
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os.pardir, "Data", "iceland", "political.shp") |
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layer = Layer("My Layer", session.OpenShapefile(shpfile)) |
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proj = Projection(["proj=lcc", "ellps=clrk66", |
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"lat_1=0", "lat_2=20"], |
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"Layer Projection") |
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layer.SetProjection(proj) |
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map.AddLayer(layer) |
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|
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filename = self.temp_file_name("save_layerproj.thuban") |
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save_session(session, filename) |
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|
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file = open(filename) |
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written_contents = file.read() |
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file.close() |
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expected_contents = '''<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE session SYSTEM "thuban-1.1.dtd"> |
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<session title="single map&layer" |
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xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"> |
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<fileshapesource id="D1" |
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filename="../../Data/iceland/political.shp" |
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filetype="shapefile"/> |
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<map title="Test Map"> |
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<projection name="Unknown"> |
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<parameter value="zone=26"/> |
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<parameter value="proj=utm"/> |
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<parameter value="ellps=clrk66"/> |
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</projection> |
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<layer title="My Layer" shapestore="D1" |
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fill="None" stroke="#000000" stroke_width="1" visible="true"> |
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<projection name="Layer Projection"> |
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<parameter value="proj=lcc"/> |
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<parameter value="ellps=clrk66"/> |
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<parameter value="lat_1=0"/> |
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<parameter value="lat_2=20"/> |
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</projection> |
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</layer> |
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</map> |
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</session>''' |
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#print written_contents |
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#print "********************************************" |
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#print expected_contents |
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self.compare_xml(written_contents, expected_contents) |
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|
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self.validate_data(written_contents) |
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|
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def testRasterLayer(self): |
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|
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MASK_NONE = RasterLayer.MASK_NONE |
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MASK_BIT = RasterLayer.MASK_BIT |
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MASK_ALPHA = RasterLayer.MASK_ALPHA |
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|
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for opacity, masktype, opname, maskname in \ |
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[(1, MASK_BIT, '', ''), |
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(.2, MASK_BIT, 'opacity="0.2"', ''), |
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(1, MASK_ALPHA, '', 'masktype="alpha"'), |
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(.5, MASK_ALPHA, 'opacity="0.5"', 'masktype="alpha"'), |
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(1, MASK_NONE, '', 'masktype="none"'), |
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(0, MASK_NONE, 'opacity="0"', 'masktype="none"') ]: |
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|
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|
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# deliberately put an apersand in the title :) |
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session = Session("single map&layer") |
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map = Map("Test Map") |
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session.AddMap(map) |
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# use shapefile from the example data |
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imgfile = os.path.join(os.path.dirname(__file__), |
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os.pardir, "Data", "iceland", "island.tif") |
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layer = RasterLayer("My RasterLayer", imgfile) |
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|
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layer.SetOpacity(opacity) |
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layer.SetMaskType(masktype) |
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|
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map.AddLayer(layer) |
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|
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filename = self.temp_file_name("%s.thuban" % self.id()) |
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save_session(session, filename) |
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session.Destroy() |
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|
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file = open(filename) |
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written_contents = file.read() |
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file.close() |
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expected_contents = '''<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE session SYSTEM "thuban-1.1.dtd"> |
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<session title="single map&layer" |
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xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"> |
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<map title="Test Map"> |
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<rasterlayer title="My RasterLayer" |
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filename="../../Data/iceland/island.tif" |
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visible="true" %s %s> |
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</rasterlayer> |
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</map> |
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</session>''' % (opname, maskname) |
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#print written_contents |
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#print "********************************************" |
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#print expected_contents |
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self.compare_xml(written_contents, expected_contents) |
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|
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self.validate_data(written_contents) |
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|
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def testClassifiedLayer(self): |
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"""Save a session with a single map with classifications""" |
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# deliberately put an apersand in the title :) |
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session = Session("Map with Classifications") |
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proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"]) |
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map = Map("Test Map", projection = proj) |
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session.AddMap(map) |
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# use shapefile from the example data |
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shpfile = os.path.join(os.path.dirname(__file__), |
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os.pardir, "Data", "iceland", "political.shp") |
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layer = Layer("My Layer", session.OpenShapefile(shpfile)) |
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map.AddLayer(layer) |
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layer2 = Layer("My Layer", layer.ShapeStore()) |
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map.AddLayer(layer2) |
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|
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clazz = layer.GetClassification() |
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|
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layer.SetClassificationColumn("AREA") |
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|
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clazz.AppendGroup(ClassGroupSingleton(42, ClassGroupProperties(), |
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"single")) |
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clazz.AppendGroup(ClassGroupSingleton("text", ClassGroupProperties(), |
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"single-text")) |
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|
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clazz.AppendGroup(ClassGroupRange((0, 42), |
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ClassGroupProperties(), |
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"range")) |
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|
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range = ClassGroupRange(Range("[0;42]")) |
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range.SetProperties(ClassGroupProperties()) |
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range.SetLabel("new-range") |
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clazz.AppendGroup(range) |
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|
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|
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clazz = layer2.GetClassification() |
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layer2.SetClassificationColumn("POPYCOUN") |
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|
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# Classification with Latin 1 text |
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clazz.AppendGroup(ClassGroupSingleton('\xe4\xf6\xfc', # ae, oe, ue |
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ClassGroupProperties(), |
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'\xdcml\xe4uts')) # Uemlaeuts |
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|
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|
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filename = self.temp_file_name("%s.thuban" % self.id()) |
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save_session(session, filename) |
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|
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file = open(filename) |
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written_contents = file.read() |
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file.close() |
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expected_contents = '''<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE session SYSTEM "thuban-1.1.dtd"> |
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<session title="Map with Classifications" |
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xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"> |
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<fileshapesource id="D1" |
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filename="../../Data/iceland/political.shp" |
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filetype="shapefile"/> |
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<map title="Test Map"> |
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<projection name="Unknown"> |
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<parameter value="zone=26"/> |
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<parameter value="proj=utm"/> |
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<parameter value="ellps=clrk66"/> |
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</projection> |
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<layer title="My Layer" shapestore="D1" |
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fill="None" stroke="#000000" stroke_width="1" visible="true"> |
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<classification field="AREA" field_type="double"> |
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<clnull label=""> |
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<cldata fill="None" stroke="#000000" stroke_width="1"/> |
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</clnull> |
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<clpoint value="42" label="single"> |
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<cldata fill="None" stroke="#000000" stroke_width="1"/> |
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</clpoint> |
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<clpoint value="text" label="single-text"> |
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<cldata fill="None" stroke="#000000" stroke_width="1"/> |
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</clpoint> |
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<clrange range="[0;42[" label="range"> |
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<cldata fill="None" stroke="#000000" stroke_width="1"/> |
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</clrange> |
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<clrange range="[0;42]" label="new-range"> |
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<cldata fill="None" stroke="#000000" stroke_width="1"/> |
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</clrange> |
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</classification> |
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</layer> |
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<layer title="My Layer" shapestore="D1" |
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fill="None" stroke="#000000" stroke_width="1" visible="true"> |
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<classification field="POPYCOUN" field_type="string"> |
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<clnull label=""> |
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<cldata fill="None" stroke="#000000" stroke_width="1"/> |
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</clnull> |
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<clpoint value="\xc3\xa4\xc3\xb6\xc3\xbc" |
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label="\xc3\x9cml\xc3\xa4uts"> |
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<cldata fill="None" stroke="#000000" stroke_width="1"/> |
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</clpoint> |
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</classification> |
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</layer> |
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</map> |
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</session>''' |
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|
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#print written_contents |
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#print "********************************************" |
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#print expected_contents |
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self.compare_xml(written_contents, expected_contents) |
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|
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self.validate_data(written_contents) |
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|
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session.Destroy() |
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|
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def test_dbf_table(self): |
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"""Test saving a session with a dbf table link""" |
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session = self.session = Session("a DBF Table session") |
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# use shapefile from the example data |
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dbffile = os.path.join(os.path.dirname(__file__), |
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os.pardir, "Data", "iceland", "political.dbf") |
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table = session.AddTable(DBFTable(dbffile)) |
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|
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filename = self.temp_file_name("save_singletable.thuban") |
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save_session(session, filename) |
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|
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file = open(filename) |
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written_contents = file.read() |
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file.close() |
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expected_contents = '''<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE session SYSTEM "thuban-1.1.dtd"> |
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<session title="a DBF Table session" |
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xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"> |
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<filetable id="D1" filename="../../Data/iceland/political.dbf" |
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filetype="DBF" title="political"/> |
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</session>''' |
| 417 |
|
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self.compare_xml(written_contents, expected_contents) |
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self.validate_data(written_contents) |
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|
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def test_joined_table(self): |
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"""Test saving a session with joined table""" |
| 423 |
# Create a simple table to use in the join |
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dbffile = self.temp_file_name("save_joinedtable.dbf") |
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dbf = dbflib.create(dbffile) |
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dbf.add_field("RDTYPE", dbflib.FTInteger, 10, 0) |
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dbf.add_field("TEXT", dbflib.FTString, 10, 0) |
| 428 |
dbf.write_record(0, {'RDTYPE': 8, "TEXT": "foo"}) |
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dbf.write_record(1, {'RDTYPE': 2, "TEXT": "bar"}) |
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dbf.write_record(2, {'RDTYPE': 3, "TEXT": "baz"}) |
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dbf.close() |
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|
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# Create the session and a map |
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session = Session("A Joined Table session") |
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try: |
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map = Map("Test Map") |
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session.AddMap(map) |
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|
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# Add the dbf file to the session |
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dbftable = session.AddTable(DBFTable(dbffile)) |
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|
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# Create a layer with the shapefile to use in the join |
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shpfile = os.path.join(os.path.abspath(os.path.dirname(__file__)), |
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os.pardir, "Data", "iceland", |
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"roads-line.shp") |
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layer = Layer("My Layer", session.OpenShapefile(shpfile)) |
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map.AddLayer(layer) |
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|
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# Do the join |
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store = layer.ShapeStore() |
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#for col in store.Table().Columns(): |
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# print col.name |
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joined = TransientJoinedTable(session.TransientDB(), |
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store.Table(), "RDLNTYPE", |
| 455 |
dbftable, "RDTYPE", |
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outer_join = True) |
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store = session.AddShapeStore(DerivedShapeStore(store, joined)) |
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layer.SetShapeStore(store) |
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|
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# Save the session |
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filename = self.temp_file_name("save_joinedtable.thuban") |
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save_session(session, filename) |
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|
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# Read it back and compare |
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file = open(filename) |
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written_contents = file.read() |
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file.close() |
| 468 |
expected_contents = '''<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE session SYSTEM "thuban-1.1.dtd"> |
| 470 |
<session title="A Joined Table session" |
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xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"> |
| 472 |
<fileshapesource filename="../../Data/iceland/roads-line.shp" |
| 473 |
filetype="shapefile" id="D142197204"/> |
| 474 |
<filetable filename="save_joinedtable.dbf" |
| 475 |
title="save_joinedtable" |
| 476 |
filetype="DBF" id="D141881756"/> |
| 477 |
<jointable id="D142180284" |
| 478 |
title="Join of roads-line and save_joinedtable" |
| 479 |
leftcolumn="RDLNTYPE" left="D142197204" |
| 480 |
rightcolumn="RDTYPE" right="D141881756" |
| 481 |
jointype="LEFT OUTER" /> |
| 482 |
<derivedshapesource id="D141915644" |
| 483 |
table="D142180284" |
| 484 |
shapesource="D142197204"/> |
| 485 |
<map title="Test Map"> |
| 486 |
<layer title="My Layer" |
| 487 |
shapestore="D141915644" visible="true" |
| 488 |
stroke="#000000" stroke_width="1" fill="None"/> |
| 489 |
</map> |
| 490 |
</session>''' |
| 491 |
|
| 492 |
self.compare_xml(written_contents, expected_contents) |
| 493 |
self.validate_data(written_contents) |
| 494 |
finally: |
| 495 |
session.Destroy() |
| 496 |
session = None |
| 497 |
|
| 498 |
|
| 499 |
def test_save_postgis(self): |
| 500 |
"""Test saving a session with a postgis connection""" |
| 501 |
|
| 502 |
class NonConnection(PostGISConnection): |
| 503 |
"""connection class that doesn't actually connect """ |
| 504 |
def connect(self): |
| 505 |
pass |
| 506 |
|
| 507 |
class NonConnectionStore(PostGISShapeStore): |
| 508 |
"""Shapestore that doesn't try to access the server""" |
| 509 |
def _fetch_table_information(self): |
| 510 |
# pretend that we've found a geometry column |
| 511 |
self.geometry_column = "the_geom" |
| 512 |
def IDColumn(self): |
| 513 |
"""Return an object with a name attribute with value 'gid'""" |
| 514 |
class dummycol: |
| 515 |
name = "gid" |
| 516 |
return dummycol |
| 517 |
|
| 518 |
session = Session("A PostGIS Session") |
| 519 |
try: |
| 520 |
dbconn = NonConnection(dbname="plugh", host="xyzzy", port="42", |
| 521 |
user="grue") |
| 522 |
session.AddDBConnection(dbconn) |
| 523 |
map = Map("Test Map") |
| 524 |
session.AddMap(map) |
| 525 |
store = NonConnectionStore(dbconn, "roads") |
| 526 |
session.AddShapeStore(store) |
| 527 |
layer = Layer("Roads to Nowhere", store) |
| 528 |
map.AddLayer(layer) |
| 529 |
|
| 530 |
# Save the session |
| 531 |
filename = self.temp_file_name(self.id() + ".thuban") |
| 532 |
save_session(session, filename) |
| 533 |
|
| 534 |
# Read it back and compare |
| 535 |
file = open(filename) |
| 536 |
written = file.read() |
| 537 |
file.close() |
| 538 |
expected = '''<?xml version="1.0" encoding="UTF-8"?> |
| 539 |
<!DOCTYPE session SYSTEM "thuban-1.1.dtd"> |
| 540 |
<session title="A PostGIS Session" |
| 541 |
xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"> |
| 542 |
<dbconnection id="DB" |
| 543 |
dbtype="postgis" dbname="plugh" |
| 544 |
host="xyzzy" port="42" |
| 545 |
user="grue"/> |
| 546 |
<dbshapesource id="roads" dbconn="DB" tablename="roads" |
| 547 |
id_column="gid" geometry_column="the_geom"/> |
| 548 |
<map title="Test Map"> |
| 549 |
<layer title="Roads to Nowhere" |
| 550 |
shapestore="roads" visible="true" |
| 551 |
stroke="#000000" stroke_width="1" fill="None"/> |
| 552 |
</map> |
| 553 |
</session>''' |
| 554 |
self.compare_xml(written, expected) |
| 555 |
self.validate_data(written) |
| 556 |
finally: |
| 557 |
session.Destroy() |
| 558 |
|
| 559 |
|
| 560 |
class MockDataStore: |
| 561 |
|
| 562 |
"""A very simple data store that only has dependencies""" |
| 563 |
|
| 564 |
def __init__(self, name, *dependencies): |
| 565 |
self.name = name |
| 566 |
self.dependencies = dependencies |
| 567 |
|
| 568 |
def __repr__(self): |
| 569 |
return self.name |
| 570 |
|
| 571 |
def Dependencies(self): |
| 572 |
return self.dependencies |
| 573 |
|
| 574 |
|
| 575 |
class TestStoreSort(unittest.TestCase): |
| 576 |
|
| 577 |
def check_sort(self, containers, sorted): |
| 578 |
"""Check whether the list of data containers is sorted""" |
| 579 |
# check whether sorted is in the right order |
| 580 |
seen = {} |
| 581 |
for container in sorted: |
| 582 |
self.failIf(id(container) in seen, |
| 583 |
"Container %r at least twice in %r" % (container, |
| 584 |
sorted)) |
| 585 |
for dep in container.Dependencies(): |
| 586 |
self.assert_(id(dep) in seen, |
| 587 |
"Dependency %r of %r not yet seen" % (dep, |
| 588 |
container)) |
| 589 |
seen[id(container)] = 1 |
| 590 |
# check whether all of containers is in sorted |
| 591 |
for container in containers: |
| 592 |
self.assert_(id(container) in seen, |
| 593 |
"Container %r in containers but not in sorted") |
| 594 |
self.assertEquals(len(containers), len(sorted)) |
| 595 |
|
| 596 |
def test_sort_data_stores(self): |
| 597 |
"""Test Thuban.Model.save.sort_data_stores""" |
| 598 |
d1 = MockDataStore("d1") |
| 599 |
d2 = MockDataStore("d2") |
| 600 |
d3 = MockDataStore("d3", d1) |
| 601 |
d4 = MockDataStore("d4", d1, d3) |
| 602 |
|
| 603 |
containers = [d4, d1, d2, d3] |
| 604 |
self.check_sort(containers, sort_data_stores(containers)) |
| 605 |
containers = [d1, d3, d2, d4] |
| 606 |
self.check_sort(containers, sort_data_stores(containers)) |
| 607 |
|
| 608 |
|
| 609 |
|
| 610 |
if __name__ == "__main__": |
| 611 |
# Fake the __file__ global because it's needed by a test |
| 612 |
import sys |
| 613 |
__file__ = sys.argv[0] |
| 614 |
support.run_tests() |
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