/[thuban]/branches/WIP-pyshapelib-bramz/test/test_load.py
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revision 1417 by bh, Tue Jul 15 08:43:53 2003 UTC revision 2373 by jan, Sun Oct 3 20:49:24 2004 UTC
# Line 1  Line 1 
1  # Copyright (c) 2002, 2003 by Intevation GmbH  # Copyright (c) 2002, 2003, 2004 by Intevation GmbH
2  # Authors:  # Authors:
3  # Bernhard Herzog <[email protected]>  # Bernhard Herzog <[email protected]>
4  #  #
# Line 16  files created by Thuban 0.2. Line 16  files created by Thuban 0.2.
16  Maintenance of the test cases:  Maintenance of the test cases:
17    
18  When during a development period the file format is changed with respect  When during a development period the file format is changed with respect
19  to the last released version for the first, the tests here should be  to the last released version for the first time, the tests here should
20  copied to the version specific test file. The round-trip tests which  be copied to the version specific test file.  The round-trip tests which
21  save the session again and compare the XML files should not be copied  save the session again and compare the XML files should not be copied
22  over as they only make sense here to make sure th that the files checked  over as they only make sense here to make sure th that the files checked
23  here are actually ones that may have been written by the current thuban  here are actually ones that may have been written by the current thuban
# 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    import shapelib
42    
43  from Thuban.Model.save import save_session  from Thuban.Model.save import save_session
44  from Thuban.Model.load import load_session, parse_color, LoadError  from Thuban.Model.load import load_session, parse_color, LoadError, \
45         LoadCancelled
46  from Thuban.Model.color import Transparent  from Thuban.Model.color import Transparent
47  from Thuban.Model.classification import ClassGroupProperties, ClassGroupRange,\  from Thuban.Model.classification import ClassGroupProperties, ClassGroupRange,\
48      ClassGroupSingleton, ClassGroupDefault      ClassGroupSingleton, ClassGroupDefault
49    from Thuban.Model.postgisdb import ConnectionError
50    from Thuban.Model.table import DBFTable, MemoryTable, \
51         FIELDTYPE_DOUBLE, FIELDTYPE_INT, FIELDTYPE_STRING, \
52         table_to_dbf
53    from Thuban.Model.label import ALIGN_CENTER, ALIGN_TOP, ALIGN_BOTTOM, \
54         ALIGN_LEFT, ALIGN_RIGHT, ALIGN_BASELINE
55    
56    
57  def filenames_equal(name1, name2):  def filenames_equal(name1, name2):
# Line 80  class LoadSessionTest(support.FileLoadTe Line 89  class LoadSessionTest(support.FileLoadTe
89          self.session = None          self.session = None
90    
91    
92      dtd = "http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"      dtd = "http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
93      thubanids = [((dtd, n), (None, "id")) for n in      thubanids = [((dtd, n), (None, "id")) for n in
94                   ["fileshapesource", "filetable", "jointable",                   ["fileshapesource", "filetable", "jointable",
95                    "derivedshapesource"]]                    "derivedshapesource"]]
# Line 90  class LoadSessionTest(support.FileLoadTe Line 99  class LoadSessionTest(support.FileLoadTe
99                       ("jointable", "right"),                       ("jointable", "right"),
100                       ("derivedshapesource", "table"),                       ("derivedshapesource", "table"),
101                       ("derivedshapesource", "shapesource")]]                       ("derivedshapesource", "shapesource")]]
102    
103        # The filenames in the tests should be understandable on all
104        # currently supported platforms so filenames is an empty list
105        filenames = []
106    
107      del n, m, dtd      del n, m, dtd
108    
109      def check_format(self):      def check_format(self):
# Line 100  class LoadSessionTest(support.FileLoadTe Line 114  class LoadSessionTest(support.FileLoadTe
114          filename = self.temp_file_name(self.id() + ".roundtrip.thuban")          filename = self.temp_file_name(self.id() + ".roundtrip.thuban")
115          save_session(self.session, filename)          save_session(self.session, filename)
116          el1 = sax_eventlist(filename = filename, ids = self.thubanids,          el1 = sax_eventlist(filename = filename, ids = self.thubanids,
117                              idrefs = self.thubanidrefs)                              idrefs = self.thubanidrefs,
118                                filenames = self.filenames)
119          el2 = sax_eventlist(filename = self.filename(), ids = self.thubanids,          el2 = sax_eventlist(filename = self.filename(), ids = self.thubanids,
120                              idrefs = self.thubanidrefs)                              idrefs = self.thubanidrefs,
121                                filenames = self.filenames)
122          if 0:          if 0:
123              for a, b in zip(el1, el2):              for a, b in zip(el1, el2):
124                  print a != b and "***************" or ""                  print a != b and "***************" or ""
# Line 146  class ClassificationTest(LoadSessionTest Line 162  class ClassificationTest(LoadSessionTest
162                  props.SetLineWidth(data[CLASSES][i][GROUP_PROPS][1])                  props.SetLineWidth(data[CLASSES][i][GROUP_PROPS][1])
163                  props.SetFill(                  props.SetFill(
164                      parse_color(data[CLASSES][i][GROUP_PROPS][2]))                      parse_color(data[CLASSES][i][GROUP_PROPS][2]))
165                    if len(data[CLASSES][i][GROUP_PROPS]) > 3:
166                        props.SetSize(data[CLASSES][i][GROUP_PROPS][3])
167    
168                  if data[CLASSES][i][GROUP_TYPE] == "default":                  if data[CLASSES][i][GROUP_TYPE] == "default":
169                      g = ClassGroupDefault(props, data[CLASSES][i][GROUP_LABEL])                      g = ClassGroupDefault(props, data[CLASSES][i][GROUP_LABEL])
# Line 165  class ClassificationTest(LoadSessionTest Line 183  class ClassificationTest(LoadSessionTest
183    
184  class TestSingleLayer(LoadSessionTest):  class TestSingleLayer(LoadSessionTest):
185    
186        # Note: The use of &amp; and non-ascii characters is deliberate. We
187        # want to test whether the loading code handles that correctly.
188      file_contents = '''\      file_contents = '''\
189  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
190  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
191  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
192          title="single map&amp;layer">          title="Stra\xc3\x9fen &amp; Landmarken">
193      <fileshapesource filetype="shapefile" id="D1"      <fileshapesource filetype="shapefile" id="D1"
194          filename="../../Data/iceland/political.shp"/>          filename="../../Data/iceland/political.shp"/>
195      <map title="Test Map">      <map title="\xc3\x9cbersicht">
196          <projection name="Unknown">          <projection epsg="32627" name="WGS 84 / UTM zone 27N">
197              <parameter value="zone=26"/>              <parameter value="datum=WGS84"/>
198                <parameter value="ellps=WGS84"/>
199              <parameter value="proj=utm"/>              <parameter value="proj=utm"/>
200              <parameter value="ellps=clrk66"/>              <parameter value="units=m"/>
201                <parameter value="zone=27"/>
202          </projection>          </projection>
203          <layer shapestore="D1" visible="true"          <layer shapestore="D1" visible="true"
204                  stroke="#000000" title="My Layer" stroke_width="1"                  stroke="#000000" title="K\xc3\xbcste" stroke_width="1"
205                  fill="None"/>                  fill="None"/>
206      </map>      </map>
207  </session>  </session>
# Line 192  class TestSingleLayer(LoadSessionTest): Line 214  class TestSingleLayer(LoadSessionTest):
214          self.session = session          self.session = session
215    
216          # Check the title          # Check the title
217          eq(session.Title(), "single map&layer")          eq(session.Title(), "Stra\xdfen & Landmarken")
218    
219          # the session has one map.          # the session has one map.
220          maps = session.Maps()          maps = session.Maps()
# Line 200  class TestSingleLayer(LoadSessionTest): Line 222  class TestSingleLayer(LoadSessionTest):
222    
223          # Check the map's attributes          # Check the map's attributes
224          map = maps[0]          map = maps[0]
225          eq(map.Title(), "Test Map")          eq(map.Title(), "\xdcbersicht")
226            proj = map.GetProjection()
227            eq(proj.GetName(), "WGS 84 / UTM zone 27N")
228            eq(proj.EPSGCode(), "32627")
229            params = proj.GetAllParameters()
230            params.sort()
231            eq(params, ["datum=WGS84", "ellps=WGS84", "proj=utm", "units=m",
232                        "zone=27"])
233    
234          # the map has a single layer          # the map has a single layer
235          layers = map.Layers()          layers = map.Layers()
# Line 208  class TestSingleLayer(LoadSessionTest): Line 237  class TestSingleLayer(LoadSessionTest):
237    
238          # Check the layer attributes          # Check the layer attributes
239          layer = layers[0]          layer = layers[0]
240          eq(layer.Title(), "My Layer")          eq(layer.Title(), "K\xfcste")
241          self.failUnless(filenames_equal(layer.ShapeStore().FileName(),          self.failUnless(filenames_equal(layer.ShapeStore().FileName(),
242                                          os.path.join(self.temp_dir(),                                          os.path.join(self.temp_dir(),
243                                                       os.pardir, os.pardir,                                                       os.pardir, os.pardir,
# Line 223  class TestSingleLayer(LoadSessionTest): Line 252  class TestSingleLayer(LoadSessionTest):
252          self.session.Destroy()          self.session.Destroy()
253          self.session = None          self.session = None
254    
255        def test_leak(self):
256            """Test load_session for resource leaks
257    
258            The load_session function had a resource leak in that it created
259            cyclic references. The objects would have been eventually
260            collected by the garbage collector but too late. One symptom is
261            that when layers are removed so that the last normal reference
262            owned indirectly by the session to a shape store goes away, the
263            shape store is not actually removed from the session even though
264            the session only keeps weak references because there are still
265            references owned by the cyclic garbage.
266            """
267            session = load_session(self.filename())
268            self.session = session
269    
270            # sanity check
271            self.assertEquals(len(session.ShapeStores()), 1)
272    
273            # remove the map. The shapestore should go away too
274            session.RemoveMap(session.Maps()[0])
275            self.assertEquals(len(session.ShapeStores()), 0)
276    
277    
278    class TestNonAsciiColumnName(LoadSessionTest):
279    
280        file_contents = '''\
281    <?xml version="1.0" encoding="UTF-8"?>
282    <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
283    <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
284            title="Non ASCII column name test">
285        <fileshapesource filetype="shapefile" id="D1"
286            filename="TestNonAsciiColumnName.shp"/>
287        <map title="map">
288            <projection name="Some Projection">
289                <parameter value="datum=WGS84"/>
290                <parameter value="ellps=WGS84"/>
291                <parameter value="proj=utm"/>
292                <parameter value="units=m"/>
293                <parameter value="zone=27"/>
294            </projection>
295            <layer shapestore="D1" visible="true"
296                    stroke="#000000" title="layer" stroke_width="1"
297                    fill="None">
298                <classification field="Fl\xc3\xa4che" field_type="double">
299                    <clnull label="">
300                        <cldata stroke="#000000" stroke_width="1" fill="None"/>
301                    </clnull>
302                </classification>
303            </layer>
304        </map>
305    </session>
306    '''
307    
308        def test(self):
309            """Load a session with a single map with a single layer"""
310    
311            # Create a shapefile and a dbffile with a non-ascii column name
312            dbffile = self.temp_file_name("TestNonAsciiColumnName.dbf")
313            shpfile = self.temp_file_name("TestNonAsciiColumnName.shp")
314            dbf = dbflib.create(dbffile)
315            dbf.add_field('Fl\xe4che', dbflib.FTDouble, 10, 5)
316            dbf.write_record(0, (0.0,))
317            dbf.close()
318            shp = shapelib.create(shpfile, shapelib.SHPT_POLYGON)
319            shp.write_object(-1, shapelib.SHPObject(shapelib.SHPT_POLYGON, 1,
320                                                    [[(0,0), (10, 10), (10, 0),
321                                                      (0, 0)]]))
322            shp.close()
323    
324            try:
325                session = load_session(self.filename())
326            except ValueError, v:
327                # Usually if the field name is not decoded properly the
328                # loading fails because the field type mentioned in the file
329                # is not None as returned from the layer for a non-existing
330                # column name so we check for that and report it as failure.
331                # Other exceptions are errors in the test case.
332                if str(v) == "xml field type differs from database!":
333                    self.fail("Cannot load file with non-ascii column names")
334                else:
335                    raise
336            self.session = session
337    
338            # In case Thuban could load the file anyway (i.e. no ValueError
339            # exception in load_session()), check explicitly whether the
340            # field name was decoded properly. The test will probably lead
341            # to a UnicodeError instead of a test failure so we check that
342            # too
343            layer = session.Maps()[0].Layers()[0]
344            try:
345                self.assertEquals(layer.GetClassificationColumn(), 'Fl\xe4che')
346            except UnicodeError:
347                # FIXME: Obviously this will have to change if Thuban ever
348                # supports unicode properly.
349                self.fail("Column name was not converted to a bytestring")
350    
351            # roundtrip check
352            self.check_format()
353    
354    
355  class TestLayerVisibility(LoadSessionTest):  class TestLayerVisibility(LoadSessionTest):
356    
357      file_contents = '''\      file_contents = '''\
358  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
359  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
360  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
361          title="single map&amp;layer">          title="single map&amp;layer">
362      <fileshapesource filetype="shapefile" id="D1"      <fileshapesource filetype="shapefile" id="D1"
363          filename="../../Data/iceland/political.shp"/>          filename="../../Data/iceland/political.shp"/>
# Line 262  class TestLayerVisibility(LoadSessionTes Line 390  class TestLayerVisibility(LoadSessionTes
390          self.check_format()          self.check_format()
391    
392    
393    class TestSymbolSize(ClassificationTest):
394    
395        file_contents = '''\
396    <?xml version="1.0" encoding="UTF-8"?>
397    <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
398    <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd" title="Thuban sample session">
399        <fileshapesource filetype="shapefile" id="D813968480" filename="../../Data/iceland/cultural_landmark-point.shp"/>
400        <map title="Iceland map">
401            <layer title="cultural_landmark-point" stroke_width="1" shapestore="D813968480" visible="true" stroke="#000000" fill="#000000">
402                <classification field="CLPTLABEL" field_type="string">
403                    <clnull label="">
404                        <cldata stroke="#000000" stroke_width="1" size="3" fill="#000000"/>
405                    </clnull>
406                    <clpoint label="" value="RUINS">
407                        <cldata stroke="#000000" stroke_width="1" size="6" fill="#ffffff"/>
408                    </clpoint>
409                    <clpoint label="" value="FARM">
410                        <cldata stroke="#000000" stroke_width="1" size="9" fill="#ffff00"/>
411                    </clpoint>
412                </classification>
413            </layer>
414        </map>
415    </session>
416    '''
417    
418        def test(self):
419            """Test that the size attribute for point symbols is correctly
420            loaded for a layer."""
421            eq = self.assertEquals
422            session = load_session(self.filename())
423            self.session = session
424    
425            map = session.Maps()[0] # only one map in the sample
426    
427            expected = [("cultural_landmark-point", 2,
428                            [("default", (), "",
429                                ("#000000", 1, "#000000", 3)),
430                             ("single", "RUINS", "",
431                                ("#000000", 1, "#ffffff", 6)),
432                             ("single", "FARM", "",
433                                ("#000000", 1, "#ffff00", 9))])]
434    
435            self.TestLayers(map.Layers(), expected)
436    
437            self.check_format()
438    
439    
440  class TestClassification(ClassificationTest):  class TestClassification(ClassificationTest):
441    
442      file_contents = '''\      file_contents = '''\
443  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
444  <!DOCTYPE session SYSTEM "thuban.dtd">  <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
445  <session title="single map&amp;layer">  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
446          <map title="Test Map">          title="single map&amp;layer">
447                  <projection>      <fileshapesource filetype="shapefile" id="D138389860"
448                          <parameter value="zone=26"/>          filename="../../Data/iceland/political.shp"/>
449                          <parameter value="proj=utm"/>      <fileshapesource filetype="shapefile" id="D138504492"
450                          <parameter value="ellps=clrk66"/>          filename="../../Data/iceland/political.shp"/>
451                  </projection>      <map title="Test Map">
452                  <layer title="My Layer" stroke_width="1" fill="None"          <projection name="">
453                      filename="../../Data/iceland/political.shp"              <parameter value="zone=26"/>
454                      stroke="#000000">              <parameter value="proj=utm"/>
455                <parameter value="ellps=clrk66"/>
456            </projection>
457            <layer shapestore="D138389860" visible="true" stroke="#000000"
458                    title="My Layer" stroke_width="1" fill="None">
459              <classification field="POPYREG" field_type="string">              <classification field="POPYREG" field_type="string">
460                  <clnull>                  <clnull label="">
461                      <cldata stroke="#000000" stroke_width="1" fill="None"/>                      <cldata stroke="#000000" stroke_width="1" fill="None"/>
462                  </clnull>                  </clnull>
463                  <clpoint value="1">                  <clpoint label="" value="1">
464                      <cldata stroke="#000000" stroke_width="2" fill="None"/>                      <cldata stroke="#000000" stroke_width="2" fill="None"/>
465                  </clpoint>                  </clpoint>
466                  <clpoint value="1">                  <clpoint label="" value="1">
467                      <cldata stroke="#000000" stroke_width="10" fill="None"/>                      <cldata stroke="#000000" stroke_width="10" fill="None"/>
468                  </clpoint>                  </clpoint>
469                  <clpoint value="\xc3\xa4\xc3\xb6\xc3\xbc"                  <clpoint label="\xc3\x9cml\xc3\xa4uts"
470                           label="\xc3\x9cml\xc3\xa4uts">                          value="\xc3\xa4\xc3\xb6\xc3\xbc">
471                      <cldata fill="None" stroke="#000000" stroke_width="1"/>                      <cldata stroke="#000000" stroke_width="1" fill="None"/>
472                  </clpoint>                  </clpoint>
473              </classification>              </classification>
474          </layer>          </layer>
475                  <layer title="My Layer 2" stroke_width="1" fill="None"          <layer shapestore="D138504492" visible="true" stroke="#000000"
476                      filename="../../Data/iceland/political.shp"                  title="My Layer 2" stroke_width="2" fill="None">
                     stroke="#000000">  
477              <classification field="AREA" field_type="double">              <classification field="AREA" field_type="double">
478                  <clnull>                  <clnull label="">
479                      <cldata stroke="#000000" stroke_width="2" fill="None"/>                      <cldata stroke="#000000" stroke_width="2" fill="None"/>
480                  </clnull>                  </clnull>
481                  <clrange min="0" max="1">                  <clrange label="" range="[0;1[">
482                      <cldata stroke="#111111" stroke_width="1" fill="None"/>                      <cldata stroke="#111111" stroke_width="1" fill="None"/>
483                  </clrange>                  </clrange>
484                  <clpoint value=".5">                  <clpoint label="" value="0.5">
485                      <cldata stroke="#000000" stroke_width="1" fill="#111111"/>                      <cldata stroke="#000000" stroke_width="1" fill="#111111"/>
486                  </clpoint>                  </clpoint>
487                  <clrange min="-1" max="0">                  <clrange label="" range="[-1;0[">
488                      <cldata stroke="#000000" stroke_width="1" fill="None"/>                      <cldata stroke="#000000" stroke_width="1" fill="None"/>
489                  </clrange>                  </clrange>
490                  <clpoint value="-.5">                  <clpoint label="" value="-0.5">
491                      <cldata stroke="#000000" stroke_width="1" fill="None"/>                      <cldata stroke="#000000" stroke_width="1" fill="None"/>
492                  </clpoint>                  </clpoint>
493              </classification>              </classification>
494          </layer>          </layer>
495          </map>      </map>
496  </session>  </session>
497  '''  '''
498    
# Line 348  class TestClassification(ClassificationT Line 526  class TestClassification(ClassificationT
526    
527          self.TestLayers(map.Layers(), expected)          self.TestLayers(map.Layers(), expected)
528    
529            self.check_format()
530    
531    
532  class TestLabels(ClassificationTest):  class TestLabels(ClassificationTest):
533    
534      file_contents = '''\      file_contents = '''\
535  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
536  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
537  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
538          title="single map&amp;layer">          title="single map&amp;layer">
539      <fileshapesource filetype="shapefile" id="D1"      <fileshapesource filetype="shapefile" id="D1"
540          filename="../../Data/iceland/political.shp"/>          filename="../../Data/iceland/political.shp"/>
# Line 401  class TestLayerProjection(LoadSessionTes Line 581  class TestLayerProjection(LoadSessionTes
581    
582      file_contents = '''\      file_contents = '''\
583  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
584  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
585  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
586          title="single map&amp;layer">          title="single map&amp;layer">
587      <fileshapesource filetype="shapefile" id="D2"      <fileshapesource filetype="shapefile" id="D2"
588          filename="../../Data/iceland/roads-line.shp"/>          filename="../../Data/iceland/roads-line.shp"/>
# Line 434  class TestLayerProjection(LoadSessionTes Line 614  class TestLayerProjection(LoadSessionTes
614                  title="My Layer" stroke_width="1" fill="None">                  title="My Layer" stroke_width="1" fill="None">
615              <projection name="Unknown">              <projection name="Unknown">
616                  <parameter value="proj=lcc"/>                  <parameter value="proj=lcc"/>
617                    <parameter value="lat_1=10"/>
618                    <parameter value="lat_2=20"/>
619                  <parameter value="ellps=clrk66"/>                  <parameter value="ellps=clrk66"/>
620              </projection>              </projection>
621          </layer>          </layer>
# Line 466  class TestLayerProjection(LoadSessionTes Line 648  class TestLayerProjection(LoadSessionTes
648          neq(proj, None)          neq(proj, None)
649          eq(proj.GetName(), "Unknown")          eq(proj.GetName(), "Unknown")
650          eq(proj.GetParameter("proj"), "lcc")          eq(proj.GetParameter("proj"), "lcc")
651            eq(proj.GetParameter("lat_1"), "10")
652            eq(proj.GetParameter("lat_2"), "20")
653          eq(proj.GetParameter("ellps"), "clrk66")          eq(proj.GetParameter("ellps"), "clrk66")
654    
655          self.check_format()          self.check_format()
# Line 475  class TestRasterLayer(LoadSessionTest): Line 659  class TestRasterLayer(LoadSessionTest):
659    
660      file_contents = '''\      file_contents = '''\
661  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
662  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
663  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
664          title="single map&amp;layer">          title="single map&amp;layer">
665      <map title="Test Map">      <map title="Test Map">
666          <rasterlayer visible="false" filename="../../Data/iceland/island.tif"          <rasterlayer visible="false" filename="../../Data/iceland/island.tif"
# Line 509  class TestRasterLayer(LoadSessionTest): Line 693  class TestRasterLayer(LoadSessionTest):
693  class TestJoinedTable(LoadSessionTest):  class TestJoinedTable(LoadSessionTest):
694    
695      file_contents = '''<?xml version="1.0" encoding="UTF-8"?>      file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
696  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
697  <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-1.1-dev.dtd" title="A Joined Table session">
698      <fileshapesource filetype="shapefile" id="D137227612"      <fileshapesource filetype="shapefile" id="D137227612"
699          filename="../../Data/iceland/roads-line.shp"/>          filename="../../Data/iceland/roads-line.shp"/>
700      <filetable filetype="DBF" filename="load_joinedtable.dbf" id="D136171140"      <filetable filetype="DBF" filename="load_joinedtable.dbf" id="D136171140"
# Line 554  class TestJoinedTable(LoadSessionTest): Line 738  class TestJoinedTable(LoadSessionTest):
738          self.check_format()          self.check_format()
739    
740    
741    class TestLabelLayer(LoadSessionTest):
742    
743        # Note that the labels deliberately contain non-ascii characters to
744        # test whether they're supported correctly.
745    
746        file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
747    <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
748    <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd" title="Thuban sample session">
749        <fileshapesource filetype="shapefile" id="D145265052"
750            filename="../../Data/iceland/political.shp"/>
751        <fileshapesource filetype="shapefile" id="D145412868"
752            filename="../../Data/iceland/cultural_landmark-point.shp"/>
753        <map title="Iceland map">
754            <projection name="Unknown">
755                <parameter value="zone=26"/>
756                <parameter value="proj=utm"/>
757                <parameter value="ellps=clrk66"/>
758            </projection>
759            <layer shapestore="D145265052" visible="true" stroke="#000000"
760                    title="political" stroke_width="1" fill="#c0c0c0">
761                <projection name="Geographic">
762                    <parameter value="proj=latlong"/>
763                    <parameter value="to_meter=0.017453"/>
764                    <parameter value="ellps=clrk66"/>
765                </projection>
766            </layer>
767            <layer shapestore="D145412868" visible="true" stroke="#000000"
768                    title="landmarks" stroke_width="1" fill="#ffff00">
769                <projection name="Geographic">
770                    <parameter value="proj=latlong"/>
771                    <parameter value="to_meter=0.017453"/>
772                    <parameter value="ellps=clrk66"/>
773                </projection>
774            </layer>
775            <labellayer>
776                <label x="-21.5" y="64.25" text="RUINS"
777                    halign="left" valign="center"/>
778                <label x="-15.125" y="64.75" text="H\xc3\xbctte"
779                    halign="right" valign="top"/>
780            </labellayer>
781        </map>
782    </session>
783    '''
784    
785        def test(self):
786            """Test loading a session with a label layer"""
787            session = load_session(self.filename())
788            self.session = session
789    
790            label_layer = self.session.Maps()[0].LabelLayer()
791            expected_labels = [(-21.5, 64.25, "RUINS", ALIGN_LEFT, ALIGN_CENTER),
792                               (-15.125, 64.75, "H\xfctte", ALIGN_RIGHT, ALIGN_TOP),
793                               ]
794            for label, values in zip(label_layer.Labels(), expected_labels):
795                self.assertEquals((label.x, label.y, label.text, label.halign,
796                                   label.valign),
797                                  values)
798            self.check_format()
799    
800    
801    class TestPostGISLayer(LoadSessionTest):
802    
803        file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
804    <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
805    <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
806            title="unnamed session">
807        <dbconnection port="%(port)s" host="%(host)s" user="%(user)s"
808            dbtype="postgis" id="D142684948" dbname="%(dbname)s"/>
809        <dbshapesource id="D143149420" dbconn="D142684948"
810            tablename="landmarks_point_id" id_column="point_id"
811            geometry_column="the_geom" />
812        <map title="unnamed map">
813            <layer shapestore="D143149420" visible="true" stroke="#000000"
814                    title="landmarks" stroke_width="1" fill="None"/>
815        </map>
816    </session>
817    '''
818    
819        def setUp(self):
820            """Extend the inherited method to start the postgis server
821    
822            Furthermore, patch the file contents with the real postgis db
823            information
824            """
825            postgissupport.skip_if_no_postgis()
826            self.server = postgissupport.get_test_server()
827            self.postgisdb = self.server.get_default_static_data_db()
828    
829            self.file_contents = self.__class__.file_contents % {
830                "dbname": self.postgisdb.dbname,
831                "user": self.server.user_name,
832                "port": self.server.port,
833                "host": self.server.host}
834            LoadSessionTest.setUp(self)
835    
836        def test(self):
837            """Test loading a session containing a postgis shapestore"""
838            session = load_session(self.filename())
839            self.session = session
840            connections = session.DBConnections()
841            self.assertEquals(len(connections), 1)
842            conn = connections[0]
843            for attr, value in [("host", self.server.host),
844                                ("port", str(self.server.port)),
845                                ("user", self.server.user_name),
846                                ("dbname", self.postgisdb.dbname)]:
847                self.assertEquals(getattr(conn, attr), value)
848            layer = session.Maps()[0].Layers()[0]
849            self.failUnless(layer.ShapeStore().DBConnection() is conn)
850    
851    
852    class TestPostGISLayerPassword(LoadSessionTest):
853    
854        file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
855    <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
856    <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
857            title="unnamed session">
858        <dbconnection port="%(port)s" host="%(host)s" user="%(user)s"
859            dbtype="postgis" id="D142684948" dbname="%(dbname)s"/>
860        <dbshapesource tablename="landmarks" id="D143149420" dbconn="D142684948"/>
861        <map title="unnamed map">
862            <layer shapestore="D143149420" visible="true" stroke="#000000"
863                    title="landmarks" stroke_width="1" fill="None"/>
864        </map>
865    </session>
866    '''
867    
868        def setUp(self):
869            """Extend the inherited method to start the postgis server
870    
871            Furthermore, patch the file contents with the real postgis db
872            information
873            """
874            postgissupport.skip_if_no_postgis()
875            self.server = postgissupport.get_test_server()
876            self.postgisdb = self.server.get_default_static_data_db()
877    
878            self.file_contents = self.__class__.file_contents % {
879                "dbname": self.postgisdb.dbname,
880                "user": self.server.user_name,
881                "port": self.server.port,
882                "host": self.server.host}
883            LoadSessionTest.setUp(self)
884    
885            self.db_connection_callback_called = False
886            self.server.require_authentication(True)
887    
888        def tearDown(self):
889            """Extend the inherited method to switch off postgresql authentication
890            """
891            self.server.require_authentication(False)
892            LoadSessionTest.tearDown(self)
893    
894        def db_connection_callback(self, params, message):
895            """Implementation of Thuban.Model.hooks.query_db_connection_parameters
896            """
897            self.assertEquals(params,
898                              {"dbname": self.postgisdb.dbname,
899                               "user": self.server.user_name,
900                               "port": str(self.server.port),
901                               "host": self.server.host})
902            self.db_connection_callback_called = True
903            params = params.copy()
904            params["password"] = self.server.user_password
905            return params
906    
907        def test_with_callback(self):
908            """Test loading a session with postgis, authentication and a callback
909            """
910            session = load_session(self.filename(),
911                          db_connection_callback = self.db_connection_callback)
912            self.session = session
913            connections = session.DBConnections()
914            self.assertEquals(len(connections), 1)
915            conn = connections[0]
916            for attr, value in [("host", self.server.host),
917                                ("port", str(self.server.port)),
918                                ("user", self.server.user_name),
919                                ("dbname", self.postgisdb.dbname)]:
920                self.assertEquals(getattr(conn, attr), value)
921            layer = session.Maps()[0].Layers()[0]
922            self.failUnless(layer.ShapeStore().DBConnection() is conn)
923            self.failUnless(self.db_connection_callback_called)
924    
925        def test_without_callback(self):
926            """Test loading a session with postgis, authentication and no callback
927            """
928            # A password is required and there's no callback, so we should
929            # get a ConnectionError
930            self.assertRaises(ConnectionError, load_session, self.filename())
931    
932        def test_cancel(self):
933            """Test loading a session with postgis and cancelling authentication
934            """
935            def cancel(*args):
936                self.db_connection_callback_called = True
937                return None
938    
939            # If the user cancels, i.e. if the callbakc returns None, a
940            # LoadCancelled exception is raised.
941            self.assertRaises(LoadCancelled,
942                              load_session, self.filename(), cancel)
943            self.failUnless(self.db_connection_callback_called)
944    
945    
946  class TestLoadError(LoadSessionTest):  class TestLoadError(LoadSessionTest):
947    
948      file_contents = '''\      file_contents = '''\
949  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
950  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
951  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
952          title="single map&amp;layer">          title="single map&amp;layer">
953      <fileshapesource id="D1" filename="../../Data/iceland/political.shp"/>      <fileshapesource id="D1" filename="../../Data/iceland/political.shp"/>
954      <map title="Test Map">      <map title="Test Map">
# Line 582  class TestLoadError(LoadSessionTest): Line 971  class TestLoadError(LoadSessionTest):
971          try:          try:
972              self.session = load_session(self.filename())              self.session = load_session(self.filename())
973          except LoadError, value:          except LoadError, value:
974              pass              # Check the actual messge in value to make sure the
975                # LoadError really was about the missing attribute
976                self.assertEquals(str(value),
977                  "Element "
978                  "(u'http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd',"
979                  " u'fileshapesource') requires an attribute 'filetype'")
980          else:          else:
981              self.fail("Missing filetype attribute doesn't raise LoadError")              self.fail("Missing filetype attribute doesn't raise LoadError")
982    
983  if __name__ == "__main__":  if __name__ == "__main__":
984      unittest.main()      support.run_tests()
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