/[thuban]/branches/WIP-pyshapelib-bramz/test/test_load.py
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revision 1642 by bh, Mon Aug 25 10:54:31 2003 UTC revision 1846 by bh, Tue Oct 21 10:49:53 2003 UTC
# Line 34  import unittest Line 34  import unittest
34  import support  import support
35  support.initthuban()  support.initthuban()
36    
37    import postgissupport
38  from xmlsupport import sax_eventlist  from xmlsupport import sax_eventlist
39    
40  import dbflib  import dbflib
41    
42  from Thuban.Model.save import save_session  from Thuban.Model.save import save_session
43  from Thuban.Model.load import load_session, parse_color, LoadError  from Thuban.Model.load import load_session, parse_color, LoadError, \
44         LoadCancelled
45  from Thuban.Model.color import Transparent  from Thuban.Model.color import Transparent
46  from Thuban.Model.classification import ClassGroupProperties, ClassGroupRange,\  from Thuban.Model.classification import ClassGroupProperties, ClassGroupRange,\
47      ClassGroupSingleton, ClassGroupDefault      ClassGroupSingleton, ClassGroupDefault
48    from Thuban.Model.postgisdb import ConnectionError
49    
50  def filenames_equal(name1, name2):  def filenames_equal(name1, name2):
51      """Return true if the filenames name1 and name2 are equal.      """Return true if the filenames name1 and name2 are equal.
# Line 80  class LoadSessionTest(support.FileLoadTe Line 82  class LoadSessionTest(support.FileLoadTe
82          self.session = None          self.session = None
83    
84    
85      dtd = "http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"      dtd = "http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd"
86      thubanids = [((dtd, n), (None, "id")) for n in      thubanids = [((dtd, n), (None, "id")) for n in
87                   ["fileshapesource", "filetable", "jointable",                   ["fileshapesource", "filetable", "jointable",
88                    "derivedshapesource"]]                    "derivedshapesource"]]
# Line 90  class LoadSessionTest(support.FileLoadTe Line 92  class LoadSessionTest(support.FileLoadTe
92                       ("jointable", "right"),                       ("jointable", "right"),
93                       ("derivedshapesource", "table"),                       ("derivedshapesource", "table"),
94                       ("derivedshapesource", "shapesource")]]                       ("derivedshapesource", "shapesource")]]
95        filenames = [((dtd, n), (None, m)) for n, m in
96                     [("fileshapesource", "filename"),
97                      ("rasterlayer", "filename"),
98                      ("filetable", "filename")]]
99      del n, m, dtd      del n, m, dtd
100    
101      def check_format(self):      def check_format(self):
# Line 100  class LoadSessionTest(support.FileLoadTe Line 106  class LoadSessionTest(support.FileLoadTe
106          filename = self.temp_file_name(self.id() + ".roundtrip.thuban")          filename = self.temp_file_name(self.id() + ".roundtrip.thuban")
107          save_session(self.session, filename)          save_session(self.session, filename)
108          el1 = sax_eventlist(filename = filename, ids = self.thubanids,          el1 = sax_eventlist(filename = filename, ids = self.thubanids,
109                              idrefs = self.thubanidrefs)                              idrefs = self.thubanidrefs,
110                                filenames = self.filenames)
111          el2 = sax_eventlist(filename = self.filename(), ids = self.thubanids,          el2 = sax_eventlist(filename = self.filename(), ids = self.thubanids,
112                              idrefs = self.thubanidrefs)                              idrefs = self.thubanidrefs,
113                                filenames = self.filenames)
114          if 0:          if 0:
115              for a, b in zip(el1, el2):              for a, b in zip(el1, el2):
116                  print a != b and "***************" or ""                  print a != b and "***************" or ""
# Line 165  class ClassificationTest(LoadSessionTest Line 173  class ClassificationTest(LoadSessionTest
173    
174  class TestSingleLayer(LoadSessionTest):  class TestSingleLayer(LoadSessionTest):
175    
176        # Note: The use of & and non-ascii characters is deliberate. We
177        # want to test whether the loading code handles that correctly.
178      file_contents = '''\      file_contents = '''\
179  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
180  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.0.dtd">
181  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd"
182          title="single map&amp;layer">          title="single map&amp;layer">
183      <fileshapesource filetype="shapefile" id="D1"      <fileshapesource filetype="shapefile" id="D1"
184          filename="../../Data/iceland/political.shp"/>          filename="../../Data/iceland/political.shp"/>
185      <map title="Test Map">      <map title="Test Map">
186          <projection name="Unknown">          <projection epsg="32627" name="WGS 84 / UTM zone 27N">
187              <parameter value="zone=26"/>              <parameter value="datum=WGS84"/>
188                <parameter value="ellps=WGS84"/>
189              <parameter value="proj=utm"/>              <parameter value="proj=utm"/>
190              <parameter value="ellps=clrk66"/>              <parameter value="units=m"/>
191                <parameter value="zone=27"/>
192          </projection>          </projection>
193          <layer shapestore="D1" visible="true"          <layer shapestore="D1" visible="true"
194                  stroke="#000000" title="My Layer" stroke_width="1"                  stroke="#000000" title="My Layer" stroke_width="1"
# Line 201  class TestSingleLayer(LoadSessionTest): Line 213  class TestSingleLayer(LoadSessionTest):
213          # Check the map's attributes          # Check the map's attributes
214          map = maps[0]          map = maps[0]
215          eq(map.Title(), "Test Map")          eq(map.Title(), "Test Map")
216            proj = map.GetProjection()
217            eq(proj.GetName(), "WGS 84 / UTM zone 27N")
218            eq(proj.EPSGCode(), "32627")
219            params = proj.GetAllParameters()
220            params.sort()
221            eq(params, ["datum=WGS84", "ellps=WGS84", "proj=utm", "units=m",
222                        "zone=27"])
223    
224          # the map has a single layer          # the map has a single layer
225          layers = map.Layers()          layers = map.Layers()
# Line 228  class TestLayerVisibility(LoadSessionTes Line 247  class TestLayerVisibility(LoadSessionTes
247    
248      file_contents = '''\      file_contents = '''\
249  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
250  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.0.dtd">
251  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd"
252          title="single map&amp;layer">          title="single map&amp;layer">
253      <fileshapesource filetype="shapefile" id="D1"      <fileshapesource filetype="shapefile" id="D1"
254          filename="../../Data/iceland/political.shp"/>          filename="../../Data/iceland/political.shp"/>
# Line 353  class TestLabels(ClassificationTest): Line 372  class TestLabels(ClassificationTest):
372    
373      file_contents = '''\      file_contents = '''\
374  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
375  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.0.dtd">
376  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd"
377          title="single map&amp;layer">          title="single map&amp;layer">
378      <fileshapesource filetype="shapefile" id="D1"      <fileshapesource filetype="shapefile" id="D1"
379          filename="../../Data/iceland/political.shp"/>          filename="../../Data/iceland/political.shp"/>
# Line 401  class TestLayerProjection(LoadSessionTes Line 420  class TestLayerProjection(LoadSessionTes
420    
421      file_contents = '''\      file_contents = '''\
422  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
423  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.0.dtd">
424  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd"
425          title="single map&amp;layer">          title="single map&amp;layer">
426      <fileshapesource filetype="shapefile" id="D2"      <fileshapesource filetype="shapefile" id="D2"
427          filename="../../Data/iceland/roads-line.shp"/>          filename="../../Data/iceland/roads-line.shp"/>
# Line 434  class TestLayerProjection(LoadSessionTes Line 453  class TestLayerProjection(LoadSessionTes
453                  title="My Layer" stroke_width="1" fill="None">                  title="My Layer" stroke_width="1" fill="None">
454              <projection name="Unknown">              <projection name="Unknown">
455                  <parameter value="proj=lcc"/>                  <parameter value="proj=lcc"/>
456                    <parameter value="lat_1=10"/>
457                    <parameter value="lat_2=20"/>
458                  <parameter value="ellps=clrk66"/>                  <parameter value="ellps=clrk66"/>
459              </projection>              </projection>
460          </layer>          </layer>
# Line 466  class TestLayerProjection(LoadSessionTes Line 487  class TestLayerProjection(LoadSessionTes
487          neq(proj, None)          neq(proj, None)
488          eq(proj.GetName(), "Unknown")          eq(proj.GetName(), "Unknown")
489          eq(proj.GetParameter("proj"), "lcc")          eq(proj.GetParameter("proj"), "lcc")
490            eq(proj.GetParameter("lat_1"), "10")
491            eq(proj.GetParameter("lat_2"), "20")
492          eq(proj.GetParameter("ellps"), "clrk66")          eq(proj.GetParameter("ellps"), "clrk66")
493    
494          self.check_format()          self.check_format()
# Line 475  class TestRasterLayer(LoadSessionTest): Line 498  class TestRasterLayer(LoadSessionTest):
498    
499      file_contents = '''\      file_contents = '''\
500  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
501  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.0.dtd">
502  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd"
503          title="single map&amp;layer">          title="single map&amp;layer">
504      <map title="Test Map">      <map title="Test Map">
505          <rasterlayer visible="false" filename="../../Data/iceland/island.tif"          <rasterlayer visible="false" filename="../../Data/iceland/island.tif"
# Line 509  class TestRasterLayer(LoadSessionTest): Line 532  class TestRasterLayer(LoadSessionTest):
532  class TestJoinedTable(LoadSessionTest):  class TestJoinedTable(LoadSessionTest):
533    
534      file_contents = '''<?xml version="1.0" encoding="UTF-8"?>      file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
535  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.0.dtd">
536  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd" title="A Joined Table session">  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd" title="A Joined Table session">
537      <fileshapesource filetype="shapefile" id="D137227612"      <fileshapesource filetype="shapefile" id="D137227612"
538          filename="../../Data/iceland/roads-line.shp"/>          filename="../../Data/iceland/roads-line.shp"/>
539      <filetable filetype="DBF" filename="load_joinedtable.dbf" id="D136171140"      <filetable filetype="DBF" filename="load_joinedtable.dbf" id="D136171140"
# Line 554  class TestJoinedTable(LoadSessionTest): Line 577  class TestJoinedTable(LoadSessionTest):
577          self.check_format()          self.check_format()
578    
579    
580    
581    class TestPostGISLayer(LoadSessionTest):
582    
583        file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
584    <!DOCTYPE session SYSTEM "thuban-1.0.dtd">
585    <session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd"
586            title="unnamed session">
587        <dbconnection port="%(port)s" host="%(host)s" user="%(user)s"
588            dbtype="postgis" id="D142684948" dbname="%(dbname)s"/>
589        <dbshapesource tablename="landmarks" id="D143149420" dbconn="D142684948"/>
590        <map title="unnamed map">
591            <layer shapestore="D143149420" visible="true" stroke="#000000"
592                    title="landmarks" stroke_width="1" fill="None"/>
593        </map>
594    </session>
595    '''
596    
597        def setUp(self):
598            """Extend the inherited method to start the postgis server
599    
600            Furthermore, patch the file contents with the real postgis db
601            information
602            """
603            postgissupport.skip_if_no_postgis()
604            self.server = postgissupport.get_test_server()
605            self.postgisdb = self.server.get_default_static_data_db()
606    
607            self.file_contents = self.__class__.file_contents % {
608                "dbname": self.postgisdb.dbname,
609                "user": self.server.user_name,
610                "port": self.server.port,
611                "host": self.server.host}
612            LoadSessionTest.setUp(self)
613    
614        def test(self):
615            """Test loading a session containing a postgis shapestore"""
616            session = load_session(self.filename())
617            self.session = session
618            connections = session.DBConnections()
619            self.assertEquals(len(connections), 1)
620            conn = connections[0]
621            for attr, value in [("host", self.server.host),
622                                ("port", str(self.server.port)),
623                                ("user", self.server.user_name),
624                                ("dbname", self.postgisdb.dbname)]:
625                self.assertEquals(getattr(conn, attr), value)
626            layer = session.Maps()[0].Layers()[0]
627            self.failUnless(layer.ShapeStore().DBConnection() is conn)
628    
629    
630    class TestPostGISLayerPassword(LoadSessionTest):
631    
632        file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
633    <!DOCTYPE session SYSTEM "thuban-1.0.dtd">
634    <session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd"
635            title="unnamed session">
636        <dbconnection port="%(port)s" host="%(host)s" user="%(user)s"
637            dbtype="postgis" id="D142684948" dbname="%(dbname)s"/>
638        <dbshapesource tablename="landmarks" id="D143149420" dbconn="D142684948"/>
639        <map title="unnamed map">
640            <layer shapestore="D143149420" visible="true" stroke="#000000"
641                    title="landmarks" stroke_width="1" fill="None"/>
642        </map>
643    </session>
644    '''
645    
646        def setUp(self):
647            """Extend the inherited method to start the postgis server
648    
649            Furthermore, patch the file contents with the real postgis db
650            information
651            """
652            postgissupport.skip_if_no_postgis()
653            self.server = postgissupport.get_test_server()
654            self.postgisdb = self.server.get_default_static_data_db()
655    
656            self.file_contents = self.__class__.file_contents % {
657                "dbname": self.postgisdb.dbname,
658                "user": self.server.user_name,
659                "port": self.server.port,
660                "host": self.server.host}
661            LoadSessionTest.setUp(self)
662    
663            self.db_connection_callback_called = False
664            self.server.require_authentication(True)
665    
666        def tearDown(self):
667            """Extend the inherited method to switch off postgresql authentication
668            """
669            self.server.require_authentication(False)
670            LoadSessionTest.tearDown(self)
671    
672        def db_connection_callback(self, params, message):
673            """Implementation of Thuban.Model.hooks.query_db_connection_parameters
674            """
675            self.assertEquals(params,
676                              {"dbname": self.postgisdb.dbname,
677                               "user": self.server.user_name,
678                               "port": str(self.server.port),
679                               "host": self.server.host})
680            self.db_connection_callback_called = True
681            params = params.copy()
682            params["password"] = self.server.user_password
683            return params
684    
685        def test_with_callback(self):
686            """Test loading a session with postgis, authentication and a callback
687            """
688            session = load_session(self.filename(),
689                          db_connection_callback = self.db_connection_callback)
690            self.session = session
691            connections = session.DBConnections()
692            self.assertEquals(len(connections), 1)
693            conn = connections[0]
694            for attr, value in [("host", self.server.host),
695                                ("port", str(self.server.port)),
696                                ("user", self.server.user_name),
697                                ("dbname", self.postgisdb.dbname)]:
698                self.assertEquals(getattr(conn, attr), value)
699            layer = session.Maps()[0].Layers()[0]
700            self.failUnless(layer.ShapeStore().DBConnection() is conn)
701            self.failUnless(self.db_connection_callback_called)
702    
703        def test_without_callback(self):
704            """Test loading a session with postgis, authentication and no callback
705            """
706            # A password is required and there's no callback, so we should
707            # get a ConnectionError
708            self.assertRaises(ConnectionError, load_session, self.filename())
709    
710        def test_cancel(self):
711            """Test loading a session with postgis and cancelling authentication
712            """
713            def cancel(*args):
714                self.db_connection_callback_called = True
715                return None
716    
717            # If the user cancels, i.e. if the callbakc returns None, a
718            # LoadCancelled exception is raised.
719            self.assertRaises(LoadCancelled,
720                              load_session, self.filename(), cancel)
721            self.failUnless(self.db_connection_callback_called)
722    
723    
724  class TestLoadError(LoadSessionTest):  class TestLoadError(LoadSessionTest):
725    
726      file_contents = '''\      file_contents = '''\
727  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
728  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.0.dtd">
729  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd"
730          title="single map&amp;layer">          title="single map&amp;layer">
731      <fileshapesource id="D1" filename="../../Data/iceland/political.shp"/>      <fileshapesource id="D1" filename="../../Data/iceland/political.shp"/>
732      <map title="Test Map">      <map title="Test Map">
# Line 586  class TestLoadError(LoadSessionTest): Line 753  class TestLoadError(LoadSessionTest):
753              # LoadError really was about the missing attribute              # LoadError really was about the missing attribute
754              self.assertEquals(str(value),              self.assertEquals(str(value),
755                "Element "                "Element "
756                "(u'http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd',"                "(u'http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd',"
757                " u'fileshapesource') requires an attribute 'filetype'")                " u'fileshapesource') requires an attribute 'filetype'")
758          else:          else:
759              self.fail("Missing filetype attribute doesn't raise LoadError")              self.fail("Missing filetype attribute doesn't raise LoadError")
760    
761  if __name__ == "__main__":  if __name__ == "__main__":
762      unittest.main()      support.run_tests()
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