/[thuban]/branches/WIP-pyshapelib-bramz/test/test_load.py
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revision 1347 by jonathan, Tue Jul 1 16:12:14 2003 UTC revision 1687 by bh, Fri Aug 29 10:02:16 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  from Thuban.Model.color Transparent       LoadCancelled
45    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-0.8.dtd"      dtd = "http://thuban.intevation.org/dtds/thuban-0.9.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 150  class ClassificationTest(LoadSessionTest Line 158  class ClassificationTest(LoadSessionTest
158                  if data[CLASSES][i][GROUP_TYPE] == "default":                  if data[CLASSES][i][GROUP_TYPE] == "default":
159                      g = ClassGroupDefault(props, data[CLASSES][i][GROUP_LABEL])                      g = ClassGroupDefault(props, data[CLASSES][i][GROUP_LABEL])
160                  elif data[CLASSES][i][GROUP_TYPE] == "range":                  elif data[CLASSES][i][GROUP_TYPE] == "range":
161                      g = ClassGroupRange(data[CLASSES][i][GROUP_DATA][0],                      g = ClassGroupRange((data[CLASSES][i][GROUP_DATA][0],
162                                          data[CLASSES][i][GROUP_DATA][1],                                           data[CLASSES][i][GROUP_DATA][1]),
163                                          props, data[CLASSES][i][GROUP_LABEL])                                          props, data[CLASSES][i][GROUP_LABEL])
164                  elif data[CLASSES][i][GROUP_TYPE] == "single":                  elif data[CLASSES][i][GROUP_TYPE] == "single":
165                      g = ClassGroupSingleton(data[CLASSES][i][GROUP_DATA],                      g = ClassGroupSingleton(data[CLASSES][i][GROUP_DATA],
# Line 167  class TestSingleLayer(LoadSessionTest): Line 175  class TestSingleLayer(LoadSessionTest):
175    
176      file_contents = '''\      file_contents = '''\
177  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
178  <!DOCTYPE session SYSTEM "thuban-0.8.dtd">  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">
179  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.8.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9.dtd"
180          title="single map&amp;layer">          title="single map&amp;layer">
181      <fileshapesource filetype="shapefile" id="D1"      <fileshapesource filetype="shapefile" id="D1"
182          filename="../../Data/iceland/political.shp"/>          filename="../../Data/iceland/political.shp"/>
# Line 228  class TestLayerVisibility(LoadSessionTes Line 236  class TestLayerVisibility(LoadSessionTes
236    
237      file_contents = '''\      file_contents = '''\
238  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
239  <!DOCTYPE session SYSTEM "thuban-0.8.dtd">  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">
240  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.8.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9.dtd"
241          title="single map&amp;layer">          title="single map&amp;layer">
242      <fileshapesource filetype="shapefile" id="D1"      <fileshapesource filetype="shapefile" id="D1"
243          filename="../../Data/iceland/political.shp"/>          filename="../../Data/iceland/political.shp"/>
# Line 287  class TestClassification(ClassificationT Line 295  class TestClassification(ClassificationT
295                  <clpoint value="1">                  <clpoint value="1">
296                      <cldata stroke="#000000" stroke_width="10" fill="None"/>                      <cldata stroke="#000000" stroke_width="10" fill="None"/>
297                  </clpoint>                  </clpoint>
298                    <clpoint value="\xc3\xa4\xc3\xb6\xc3\xbc"
299                             label="\xc3\x9cml\xc3\xa4uts">
300                        <cldata fill="None" stroke="#000000" stroke_width="1"/>
301                    </clpoint>
302              </classification>              </classification>
303          </layer>          </layer>
304                  <layer title="My Layer 2" stroke_width="1" fill="None"                  <layer title="My Layer 2" stroke_width="1" fill="None"
# Line 321  class TestClassification(ClassificationT Line 333  class TestClassification(ClassificationT
333    
334          map = self.session.Maps()[0] # only one map in the sample          map = self.session.Maps()[0] # only one map in the sample
335    
336          expected = [("My Layer", 2,          expected = [("My Layer", 3,
337                          [("default", (), "",                          [("default", (), "",
338                              ("#000000", 1, "None")),                              ("#000000", 1, "None")),
339                           ("single", "1", "",                           ("single", "1", "",
340                              ("#000000", 2, "None")),                              ("#000000", 2, "None")),
341                           ("single", "1", "",                           ("single", "1", "",
342                              ("#000000", 10, "None"))]),                              ("#000000", 10, "None")),
343                             ("single", "\xe4\xf6\xfc", "\xdcml\xe4uts",
344                                ("#000000", 1, "None"))]),
345                       ("My Layer 2", 4,                       ("My Layer 2", 4,
346                           [("default", (), "",                           [("default", (), "",
347                              ("#000000", 2, "None")),                              ("#000000", 2, "None")),
# Line 347  class TestLabels(ClassificationTest): Line 361  class TestLabels(ClassificationTest):
361    
362      file_contents = '''\      file_contents = '''\
363  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
364  <!DOCTYPE session SYSTEM "thuban-0.8.dtd">  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">
365  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.8.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9.dtd"
366          title="single map&amp;layer">          title="single map&amp;layer">
367      <fileshapesource filetype="shapefile" id="D1"      <fileshapesource filetype="shapefile" id="D1"
368          filename="../../Data/iceland/political.shp"/>          filename="../../Data/iceland/political.shp"/>
# Line 395  class TestLayerProjection(LoadSessionTes Line 409  class TestLayerProjection(LoadSessionTes
409    
410      file_contents = '''\      file_contents = '''\
411  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
412  <!DOCTYPE session SYSTEM "thuban-0.8.dtd">  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">
413  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.8.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9.dtd"
414          title="single map&amp;layer">          title="single map&amp;layer">
415      <fileshapesource filetype="shapefile" id="D2"      <fileshapesource filetype="shapefile" id="D2"
416          filename="../../Data/iceland/roads-line.shp"/>          filename="../../Data/iceland/roads-line.shp"/>
# Line 428  class TestLayerProjection(LoadSessionTes Line 442  class TestLayerProjection(LoadSessionTes
442                  title="My Layer" stroke_width="1" fill="None">                  title="My Layer" stroke_width="1" fill="None">
443              <projection name="Unknown">              <projection name="Unknown">
444                  <parameter value="proj=lcc"/>                  <parameter value="proj=lcc"/>
445                    <parameter value="lat_1=10"/>
446                    <parameter value="lat_2=20"/>
447                  <parameter value="ellps=clrk66"/>                  <parameter value="ellps=clrk66"/>
448              </projection>              </projection>
449          </layer>          </layer>
# Line 460  class TestLayerProjection(LoadSessionTes Line 476  class TestLayerProjection(LoadSessionTes
476          neq(proj, None)          neq(proj, None)
477          eq(proj.GetName(), "Unknown")          eq(proj.GetName(), "Unknown")
478          eq(proj.GetParameter("proj"), "lcc")          eq(proj.GetParameter("proj"), "lcc")
479            eq(proj.GetParameter("lat_1"), "10")
480            eq(proj.GetParameter("lat_2"), "20")
481          eq(proj.GetParameter("ellps"), "clrk66")          eq(proj.GetParameter("ellps"), "clrk66")
482    
483          self.check_format()          self.check_format()
# Line 469  class TestRasterLayer(LoadSessionTest): Line 487  class TestRasterLayer(LoadSessionTest):
487    
488      file_contents = '''\      file_contents = '''\
489  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
490  <!DOCTYPE session SYSTEM "thuban-0.8.dtd">  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">
491  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.8.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9.dtd"
492          title="single map&amp;layer">          title="single map&amp;layer">
493      <map title="Test Map">      <map title="Test Map">
494          <rasterlayer visible="false" filename="../../Data/iceland/island.tif"          <rasterlayer visible="false" filename="../../Data/iceland/island.tif"
# Line 503  class TestRasterLayer(LoadSessionTest): Line 521  class TestRasterLayer(LoadSessionTest):
521  class TestJoinedTable(LoadSessionTest):  class TestJoinedTable(LoadSessionTest):
522    
523      file_contents = '''<?xml version="1.0" encoding="UTF-8"?>      file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
524  <!DOCTYPE session SYSTEM "thuban-0.8.dtd">  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">
525  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.8.dtd" title="A Joined Table session">  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9.dtd" title="A Joined Table session">
526      <fileshapesource filetype="shapefile" id="D137227612"      <fileshapesource filetype="shapefile" id="D137227612"
527          filename="../../Data/iceland/roads-line.shp"/>          filename="../../Data/iceland/roads-line.shp"/>
528      <filetable filetype="DBF" filename="load_joinedtable.dbf" id="D136171140"      <filetable filetype="DBF" filename="load_joinedtable.dbf" id="D136171140"
529          title="Some Title"/>          title="Some Title"/>
530      <jointable leftcolumn="RDLNTYPE" right="D136171140"      <jointable id="D136169900" title="Joined"
531          title="Joined" rightcolumn="RDTYPE" id="D136169900" left="D137227612"/>          right="D136171140" left="D137227612"
532            leftcolumn="RDLNTYPE" rightcolumn="RDTYPE"
533            jointype="LEFT OUTER"/>
534      <derivedshapesource table="D136169900" shapesource="D137227612"      <derivedshapesource table="D136169900" shapesource="D137227612"
535          id="D136170932"/>          id="D136170932"/>
536      <map title="Test Map">      <map title="Test Map">
# Line 542  class TestJoinedTable(LoadSessionTest): Line 562  class TestJoinedTable(LoadSessionTest):
562          # FIXME: The tests shouldn't assume a certain order of the tables          # FIXME: The tests shouldn't assume a certain order of the tables
563          self.assertEquals(tables[0].Title(), "Some Title")          self.assertEquals(tables[0].Title(), "Some Title")
564          self.assertEquals(tables[1].Title(), "Joined")          self.assertEquals(tables[1].Title(), "Joined")
565            self.assertEquals(tables[1].JoinType(), "LEFT OUTER")
566          self.check_format()          self.check_format()
567    
568    
569    
570    class TestPostGISLayer(LoadSessionTest):
571    
572        file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
573    <!DOCTYPE session SYSTEM "thuban-0.9.dtd">
574    <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9.dtd"
575            title="unnamed session">
576        <dbconnection port="%(port)s" host="%(host)s" user="%(user)s"
577            dbtype="postgis" id="D142684948" dbname="%(dbname)s"/>
578        <dbshapesource tablename="landmarks" id="D143149420" dbconn="D142684948"/>
579        <map title="unnamed map">
580            <layer shapestore="D143149420" visible="true" stroke="#000000"
581                    title="landmarks" stroke_width="1" fill="None"/>
582        </map>
583    </session>
584    '''
585    
586        def setUp(self):
587            """Extend the inherited method to start the postgis server
588    
589            Furthermore, patch the file contents with the real postgis db
590            information
591            """
592            postgissupport.skip_if_no_postgis()
593            self.server = postgissupport.get_test_server()
594            self.postgisdb = self.server.get_default_static_data_db()
595    
596            self.file_contents = self.__class__.file_contents % {
597                "dbname": self.postgisdb.dbname,
598                "user": self.server.user_name,
599                "port": self.server.port,
600                "host": self.server.host}
601            LoadSessionTest.setUp(self)
602    
603        def test(self):
604            """Test loading a session containing a postgis shapestore"""
605            session = load_session(self.filename())
606            self.session = session
607            connections = session.DBConnections()
608            self.assertEquals(len(connections), 1)
609            conn = connections[0]
610            for attr, value in [("host", self.server.host),
611                                ("port", str(self.server.port)),
612                                ("user", self.server.user_name),
613                                ("dbname", self.postgisdb.dbname)]:
614                self.assertEquals(getattr(conn, attr), value)
615            layer = session.Maps()[0].Layers()[0]
616            self.failUnless(layer.ShapeStore().DBConnection() is conn)
617    
618    
619    class TestPostGISLayerPassword(LoadSessionTest):
620    
621        file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
622    <!DOCTYPE session SYSTEM "thuban-0.9.dtd">
623    <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9.dtd"
624            title="unnamed session">
625        <dbconnection port="%(port)s" host="%(host)s" user="%(user)s"
626            dbtype="postgis" id="D142684948" dbname="%(dbname)s"/>
627        <dbshapesource tablename="landmarks" id="D143149420" dbconn="D142684948"/>
628        <map title="unnamed map">
629            <layer shapestore="D143149420" visible="true" stroke="#000000"
630                    title="landmarks" stroke_width="1" fill="None"/>
631        </map>
632    </session>
633    '''
634    
635        def setUp(self):
636            """Extend the inherited method to start the postgis server
637    
638            Furthermore, patch the file contents with the real postgis db
639            information
640            """
641            postgissupport.skip_if_no_postgis()
642            self.server = postgissupport.get_test_server()
643            self.postgisdb = self.server.get_default_static_data_db()
644    
645            self.file_contents = self.__class__.file_contents % {
646                "dbname": self.postgisdb.dbname,
647                "user": self.server.user_name,
648                "port": self.server.port,
649                "host": self.server.host}
650            LoadSessionTest.setUp(self)
651    
652            self.db_connection_callback_called = False
653            self.server.require_authentication(True)
654    
655        def tearDown(self):
656            """Extend the inherited method to switch off postgresql authentication
657            """
658            self.server.require_authentication(False)
659            LoadSessionTest.tearDown(self)
660    
661        def db_connection_callback(self, params, message):
662            """Implementation of Thuban.Model.hooks.query_db_connection_parameters
663            """
664            self.assertEquals(params,
665                              {"dbname": self.postgisdb.dbname,
666                               "user": self.server.user_name,
667                               "port": str(self.server.port),
668                               "host": self.server.host})
669            self.db_connection_callback_called = True
670            params = params.copy()
671            params["password"] = self.server.user_password
672            return params
673    
674        def test_with_callback(self):
675            """Test loading a session with postgis, authentication and a callback
676            """
677            session = load_session(self.filename(),
678                          db_connection_callback = self.db_connection_callback)
679            self.session = session
680            connections = session.DBConnections()
681            self.assertEquals(len(connections), 1)
682            conn = connections[0]
683            for attr, value in [("host", self.server.host),
684                                ("port", str(self.server.port)),
685                                ("user", self.server.user_name),
686                                ("dbname", self.postgisdb.dbname)]:
687                self.assertEquals(getattr(conn, attr), value)
688            layer = session.Maps()[0].Layers()[0]
689            self.failUnless(layer.ShapeStore().DBConnection() is conn)
690            self.failUnless(self.db_connection_callback_called)
691    
692        def test_without_callback(self):
693            """Test loading a session with postgis, authentication and no callback
694            """
695            # A password is required and there's no callback, so we should
696            # get a ConnectionError
697            self.assertRaises(ConnectionError, load_session, self.filename())
698    
699        def test_cancel(self):
700            """Test loading a session with postgis and cancelling authentication
701            """
702            def cancel(*args):
703                self.db_connection_callback_called = True
704                return None
705    
706            # If the user cancels, i.e. if the callbakc returns None, a
707            # LoadCancelled exception is raised.
708            self.assertRaises(LoadCancelled,
709                              load_session, self.filename(), cancel)
710            self.failUnless(self.db_connection_callback_called)
711    
712    
713  class TestLoadError(LoadSessionTest):  class TestLoadError(LoadSessionTest):
714    
715      file_contents = '''\      file_contents = '''\
716  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
717  <!DOCTYPE session SYSTEM "thuban-0.8.dtd">  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">
718  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.8.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9.dtd"
719          title="single map&amp;layer">          title="single map&amp;layer">
720      <fileshapesource id="D1" filename="../../Data/iceland/political.shp"/>      <fileshapesource id="D1" filename="../../Data/iceland/political.shp"/>
721      <map title="Test Map">      <map title="Test Map">
# Line 573  class TestLoadError(LoadSessionTest): Line 738  class TestLoadError(LoadSessionTest):
738          try:          try:
739              self.session = load_session(self.filename())              self.session = load_session(self.filename())
740          except LoadError, value:          except LoadError, value:
741              pass              # Check the actual messge in value to make sure the
742                # LoadError really was about the missing attribute
743                self.assertEquals(str(value),
744                  "Element "
745                  "(u'http://thuban.intevation.org/dtds/thuban-0.9.dtd',"
746                  " u'fileshapesource') requires an attribute 'filetype'")
747          else:          else:
748              self.fail("Missing filetype attribute doesn't raise LoadError")              self.fail("Missing filetype attribute doesn't raise LoadError")
749    
750  if __name__ == "__main__":  if __name__ == "__main__":
751      unittest.main()      support.run_tests()
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