/[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 2551 by jonathan, Thu Jan 27 14:19:41 2005 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  def filenames_equal(name1, name2):  def filenames_equal(name1, name2):
57      """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 88  class LoadSessionTest(support.FileLoadTe
88          self.session = None          self.session = None
89    
90    
91      dtd = "http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"      dtd = "http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
92      thubanids = [((dtd, n), (None, "id")) for n in      thubanids = [((dtd, n), (None, "id")) for n in
93                   ["fileshapesource", "filetable", "jointable",                   ["fileshapesource", "filetable", "jointable",
94                    "derivedshapesource"]]                    "derivedshapesource"]]
# Line 90  class LoadSessionTest(support.FileLoadTe Line 98  class LoadSessionTest(support.FileLoadTe
98                       ("jointable", "right"),                       ("jointable", "right"),
99                       ("derivedshapesource", "table"),                       ("derivedshapesource", "table"),
100                       ("derivedshapesource", "shapesource")]]                       ("derivedshapesource", "shapesource")]]
101    
102        # The filenames in the tests should be understandable on all
103        # currently supported platforms so filenames is an empty list
104        filenames = []
105    
106      del n, m, dtd      del n, m, dtd
107    
108      def check_format(self):      def check_format(self):
# Line 100  class LoadSessionTest(support.FileLoadTe Line 113  class LoadSessionTest(support.FileLoadTe
113          filename = self.temp_file_name(self.id() + ".roundtrip.thuban")          filename = self.temp_file_name(self.id() + ".roundtrip.thuban")
114          save_session(self.session, filename)          save_session(self.session, filename)
115          el1 = sax_eventlist(filename = filename, ids = self.thubanids,          el1 = sax_eventlist(filename = filename, ids = self.thubanids,
116                              idrefs = self.thubanidrefs)                              idrefs = self.thubanidrefs,
117                                filenames = self.filenames)
118          el2 = sax_eventlist(filename = self.filename(), ids = self.thubanids,          el2 = sax_eventlist(filename = self.filename(), ids = self.thubanids,
119                              idrefs = self.thubanidrefs)                              idrefs = self.thubanidrefs,
120                                filenames = self.filenames)
121          if 0:          if 0:
122              for a, b in zip(el1, el2):              for a, b in zip(el1, el2):
123                  print a != b and "***************" or ""                  print a != b and "***************" or ""
124                  print a                  print a
125                  print b                  print b
126    
127          self.assertEquals(el1, el2,          self.assertEquals(el1, el2,
128                            "loaded file not equivalent to the saved file")                            "loaded file not equivalent to the saved file")
129    
# 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" use_mask="true" filename="../../Data/iceland/island.tif"
667                  title="My RasterLayer"/>                  title="My RasterLayer"/>
668      </map>      </map>
669  </session>  </session>
# Line 496  class TestRasterLayer(LoadSessionTest): Line 680  class TestRasterLayer(LoadSessionTest):
680    
681          layer = map.Layers()[0] # one layer in the sample          layer = map.Layers()[0] # one layer in the sample
682    
683            layer.SetUseMask(True)
684    
685          eq(layer.Title(), "My RasterLayer")          eq(layer.Title(), "My RasterLayer")
686          self.failIf(layer.Visible())          self.failIf(layer.Visible())
687          self.failUnless(filenames_equal(layer.GetImageFilename(),          self.failUnless(filenames_equal(layer.GetImageFilename(),
# Line 509  class TestRasterLayer(LoadSessionTest): Line 695  class TestRasterLayer(LoadSessionTest):
695  class TestJoinedTable(LoadSessionTest):  class TestJoinedTable(LoadSessionTest):
696    
697      file_contents = '''<?xml version="1.0" encoding="UTF-8"?>      file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
698  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
699  <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">
700      <fileshapesource filetype="shapefile" id="D137227612"      <fileshapesource filetype="shapefile" id="D137227612"
701          filename="../../Data/iceland/roads-line.shp"/>          filename="../../Data/iceland/roads-line.shp"/>
702      <filetable filetype="DBF" filename="load_joinedtable.dbf" id="D136171140"      <filetable filetype="DBF" filename="load_joinedtable.dbf" id="D136171140"
# Line 554  class TestJoinedTable(LoadSessionTest): Line 740  class TestJoinedTable(LoadSessionTest):
740          self.check_format()          self.check_format()
741    
742    
743    class TestLabelLayer(LoadSessionTest):
744    
745        # Note that the labels deliberately contain non-ascii characters to
746        # test whether they're supported correctly.
747    
748        file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
749    <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
750    <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd" title="Thuban sample session">
751        <fileshapesource filetype="shapefile" id="D145265052"
752            filename="../../Data/iceland/political.shp"/>
753        <fileshapesource filetype="shapefile" id="D145412868"
754            filename="../../Data/iceland/cultural_landmark-point.shp"/>
755        <map title="Iceland map">
756            <projection name="Unknown">
757                <parameter value="zone=26"/>
758                <parameter value="proj=utm"/>
759                <parameter value="ellps=clrk66"/>
760            </projection>
761            <layer shapestore="D145265052" visible="true" stroke="#000000"
762                    title="political" stroke_width="1" fill="#c0c0c0">
763                <projection name="Geographic">
764                    <parameter value="proj=latlong"/>
765                    <parameter value="to_meter=0.017453"/>
766                    <parameter value="ellps=clrk66"/>
767                </projection>
768            </layer>
769            <layer shapestore="D145412868" visible="true" stroke="#000000"
770                    title="landmarks" stroke_width="1" fill="#ffff00">
771                <projection name="Geographic">
772                    <parameter value="proj=latlong"/>
773                    <parameter value="to_meter=0.017453"/>
774                    <parameter value="ellps=clrk66"/>
775                </projection>
776            </layer>
777            <labellayer>
778                <label x="-21.5" y="64.25" text="RUINS"
779                    halign="left" valign="center"/>
780                <label x="-15.125" y="64.75" text="H\xc3\xbctte"
781                    halign="right" valign="top"/>
782            </labellayer>
783        </map>
784    </session>
785    '''
786    
787        def test(self):
788            """Test loading a session with a label layer"""
789            session = load_session(self.filename())
790            self.session = session
791    
792            label_layer = self.session.Maps()[0].LabelLayer()
793            expected_labels = [(-21.5, 64.25, "RUINS", ALIGN_LEFT, ALIGN_CENTER),
794                               (-15.125, 64.75, "H\xfctte", ALIGN_RIGHT, ALIGN_TOP),
795                               ]
796            for label, values in zip(label_layer.Labels(), expected_labels):
797                self.assertEquals((label.x, label.y, label.text, label.halign,
798                                   label.valign),
799                                  values)
800            self.check_format()
801    
802    
803    class TestPostGISLayer(LoadSessionTest):
804    
805        file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
806    <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
807    <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
808            title="unnamed session">
809        <dbconnection port="%(port)s" host="%(host)s" user="%(user)s"
810            dbtype="postgis" id="D142684948" dbname="%(dbname)s"/>
811        <dbshapesource id="D143149420" dbconn="D142684948"
812            tablename="landmarks_point_id" id_column="point_id"
813            geometry_column="the_geom" />
814        <map title="unnamed map">
815            <layer shapestore="D143149420" visible="true" stroke="#000000"
816                    title="landmarks" stroke_width="1" fill="None"/>
817        </map>
818    </session>
819    '''
820    
821        def setUp(self):
822            """Extend the inherited method to start the postgis server
823    
824            Furthermore, patch the file contents with the real postgis db
825            information
826            """
827            postgissupport.skip_if_no_postgis()
828            self.server = postgissupport.get_test_server()
829            self.postgisdb = self.server.get_default_static_data_db()
830    
831            self.file_contents = self.__class__.file_contents % {
832                "dbname": self.postgisdb.dbname,
833                "user": self.server.user_name,
834                "port": self.server.port,
835                "host": self.server.host}
836            LoadSessionTest.setUp(self)
837    
838        def test(self):
839            """Test loading a session containing a postgis shapestore"""
840            session = load_session(self.filename())
841            self.session = session
842            connections = session.DBConnections()
843            self.assertEquals(len(connections), 1)
844            conn = connections[0]
845            for attr, value in [("host", self.server.host),
846                                ("port", str(self.server.port)),
847                                ("user", self.server.user_name),
848                                ("dbname", self.postgisdb.dbname)]:
849                self.assertEquals(getattr(conn, attr), value)
850            layer = session.Maps()[0].Layers()[0]
851            self.failUnless(layer.ShapeStore().DBConnection() is conn)
852    
853    
854    class TestPostGISLayerPassword(LoadSessionTest):
855    
856        file_contents = '''<?xml version="1.0" encoding="UTF-8"?>
857    <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
858    <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
859            title="unnamed session">
860        <dbconnection port="%(port)s" host="%(host)s" user="%(user)s"
861            dbtype="postgis" id="D142684948" dbname="%(dbname)s"/>
862        <dbshapesource tablename="landmarks" id="D143149420" dbconn="D142684948"/>
863        <map title="unnamed map">
864            <layer shapestore="D143149420" visible="true" stroke="#000000"
865                    title="landmarks" stroke_width="1" fill="None"/>
866        </map>
867    </session>
868    '''
869    
870        def setUp(self):
871            """Extend the inherited method to start the postgis server
872    
873            Furthermore, patch the file contents with the real postgis db
874            information
875            """
876            postgissupport.skip_if_no_postgis()
877            self.server = postgissupport.get_test_server()
878            self.postgisdb = self.server.get_default_static_data_db()
879    
880            self.file_contents = self.__class__.file_contents % {
881                "dbname": self.postgisdb.dbname,
882                "user": self.server.user_name,
883                "port": self.server.port,
884                "host": self.server.host}
885            LoadSessionTest.setUp(self)
886    
887            self.db_connection_callback_called = False
888            self.server.require_authentication(True)
889    
890        def tearDown(self):
891            """Extend the inherited method to switch off postgresql authentication
892            """
893            self.server.require_authentication(False)
894            LoadSessionTest.tearDown(self)
895    
896        def db_connection_callback(self, params, message):
897            """Implementation of Thuban.Model.hooks.query_db_connection_parameters
898            """
899            self.assertEquals(params,
900                              {"dbname": self.postgisdb.dbname,
901                               "user": self.server.user_name,
902                               "port": str(self.server.port),
903                               "host": self.server.host})
904            self.db_connection_callback_called = True
905            params = params.copy()
906            params["password"] = self.server.user_password
907            return params
908    
909        def test_with_callback(self):
910            """Test loading a session with postgis, authentication and a callback
911            """
912            session = load_session(self.filename(),
913                          db_connection_callback = self.db_connection_callback)
914            self.session = session
915            connections = session.DBConnections()
916            self.assertEquals(len(connections), 1)
917            conn = connections[0]
918            for attr, value in [("host", self.server.host),
919                                ("port", str(self.server.port)),
920                                ("user", self.server.user_name),
921                                ("dbname", self.postgisdb.dbname)]:
922                self.assertEquals(getattr(conn, attr), value)
923            layer = session.Maps()[0].Layers()[0]
924            self.failUnless(layer.ShapeStore().DBConnection() is conn)
925            self.failUnless(self.db_connection_callback_called)
926    
927        def test_without_callback(self):
928            """Test loading a session with postgis, authentication and no callback
929            """
930            # A password is required and there's no callback, so we should
931            # get a ConnectionError
932            self.assertRaises(ConnectionError, load_session, self.filename())
933    
934        def test_cancel(self):
935            """Test loading a session with postgis and cancelling authentication
936            """
937            def cancel(*args):
938                self.db_connection_callback_called = True
939                return None
940    
941            # If the user cancels, i.e. if the callbakc returns None, a
942            # LoadCancelled exception is raised.
943            self.assertRaises(LoadCancelled,
944                              load_session, self.filename(), cancel)
945            self.failUnless(self.db_connection_callback_called)
946    
947    
948  class TestLoadError(LoadSessionTest):  class TestLoadError(LoadSessionTest):
949    
950      file_contents = '''\      file_contents = '''\
951  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
952  <!DOCTYPE session SYSTEM "thuban-0.9.dtd">  <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
953  <session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd"  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd"
954          title="single map&amp;layer">          title="single map&amp;layer">
955      <fileshapesource id="D1" filename="../../Data/iceland/political.shp"/>      <fileshapesource id="D1" filename="../../Data/iceland/political.shp"/>
956      <map title="Test Map">      <map title="Test Map">
# Line 586  class TestLoadError(LoadSessionTest): Line 977  class TestLoadError(LoadSessionTest):
977              # LoadError really was about the missing attribute              # LoadError really was about the missing attribute
978              self.assertEquals(str(value),              self.assertEquals(str(value),
979                "Element "                "Element "
980                "(u'http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd',"                "(u'http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd',"
981                " u'fileshapesource') requires an attribute 'filetype'")                " u'fileshapesource') requires an attribute 'filetype'")
982          else:          else:
983              self.fail("Missing filetype attribute doesn't raise LoadError")              self.fail("Missing filetype attribute doesn't raise LoadError")
984    
985    class Shapefile_CallBack:
986    
987        def __init__(self, params):
988            """Initialize the callback return values.
989              
990               params must be a dictionary of the potential CB modes (keys),
991               with lists of tuples of return values as values.
992               Depending on the test the callback can be called multiple,
993               each time a return value is poped from the list
994            """
995    
996            self.params = params
997    
998    
999        def s_cb(self, filename, mode = None, second_try= 0):
1000            if self.params.has_key(mode):
1001                return self.params[mode].pop(0)
1002            else:
1003                raise LoadError
1004            
1005    class TestAltPath(LoadSessionTest):
1006    
1007        """Test the various cases in the alternative path feature.
1008    
1009           The test checks the reasonable cases:
1010           - First recognition of a path error, fixed with user interaction.
1011           - First recognition of a path error, load cancelled.
1012           - Path error fixed from list, confirmed by user.
1013           - Path error fixed from list, changed by user.
1014           - Path error fixed from list, cancelled by user.
1015           - Path error wrongly fixed from list, manual fix forced.
1016        """
1017    
1018        file_contents = '''\
1019    <?xml version="1.0" encoding="UTF-8"?>
1020    <!DOCTYPE session SYSTEM "thuban-1.1.dtd">
1021    <session xmlns="http://thuban.intevation.org/dtds/thuban-1.1-dev.dtd" title="AltPath Test session">
1022        <fileshapesource filetype="shapefile" id="D1108450956" filename="../../Data/iceland/political.shp"/>
1023        <fileshapesource filetype="shapefile" id="D1108900076" filename="../Data/iceland/roads-line.shp"/>
1024        <fileshapesource filetype="shapefile" id="D1108947244" filename="../../Data/iceland/cultural_landmark-point.shp"/>
1025        <map title="not the iceland map">
1026            <layer title="political" stroke_width="1" shapestore="D1108450956" visible="true" stroke="#000000" fill="#c0c0c0"/>
1027            <layer title="roads-line" stroke_width="1" shapestore="D1108900076" visible="true" stroke="#000000" fill="None"/>
1028            <layer title="something else" stroke_width="1" shapestore="D1108947244" visible="true" stroke="#000000" fill="None"/>
1029        </map>
1030    </session>
1031    '''
1032    
1033        def checkSession(self, session):
1034            """Check if session has been loaded successfully."""
1035            
1036            eq = self.assertEquals
1037    
1038            map = session.Maps()[0]
1039            layers = map.Layers()
1040    
1041            eq("AltPath Test session", session.Title())
1042            eq("not the iceland map", map.Title())
1043            eq(3,len(layers))
1044            eq("political",layers[0].Title())
1045            eq("roads-line",layers[1].Title())
1046            eq("something else",layers[2].Title())
1047    
1048        def test_01_single_path_error_fix(self):
1049            """Test single file path error fix."""
1050            # The usual initial case
1051            s_cb = Shapefile_CallBack({
1052                        "search": [("../Data/iceland/roads-line.shp",0)],
1053                        "check": [(None, None)]})
1054            self.session = load_session(self.filename(),
1055                                        shapefile_callback =s_cb.s_cb)
1056            self.checkSession(self.session)
1057            
1058        def test_02_path_error_fix_from_list(self):
1059            """Test single file path error fix."""
1060            # This represents the usual case for "from_list"
1061            s_cb = Shapefile_CallBack({
1062                    "search": [("../Data/iceland/roads-line.shp",1)],
1063                    "check": [(os.path.abspath("../Data/iceland/roads-line.shp"),1)]
1064                   })
1065            self.session = load_session(self.filename(),
1066                                        shapefile_callback =s_cb.s_cb)
1067            self.checkSession(self.session)
1068    
1069        def test_03_single_path_error_cancelled(self):
1070            """Test alternative path cancelled."""
1071            s_cb = Shapefile_CallBack({
1072                        "search": [(None,0)],
1073                        "check": [(None, None)]})
1074            self.assertRaises(LoadCancelled,
1075                                load_session, self.filename(), None, s_cb.s_cb)
1076    
1077        def test_04_path_error_fix_from_list_cancelled(self):
1078            """Test alternative path from list cancelled."""
1079            s_cb = Shapefile_CallBack({
1080                    "search": [("../Data/iceland/roads-line.shp",1)],
1081                    "check": [(None,1)]
1082                   })
1083            self.assertRaises(LoadCancelled,
1084                                load_session, self.filename(), None, s_cb.s_cb)
1085    
1086        def test_05_path_error_fix_from_list_changed(self):
1087            """Test alternative path from list changed."""
1088            s_cb = Shapefile_CallBack({
1089                    "search": [("../Data/iceland/roads-line.shp",1)],
1090                    "check": [("../Data/iceland/roads-line.shp",0)]
1091                   })
1092            self.session = load_session(self.filename(),
1093                                        shapefile_callback =s_cb.s_cb)
1094            self.checkSession(self.session)
1095    
1096        def test_06_path_error_fix_from_list_fails(self):
1097            """Test alternative path recovery from list."""
1098            s_cb = Shapefile_CallBack({
1099                    "search": [("../wrong/iceland/roads-line.shp",1),
1100                                ("../Data/iceland/roads-line.shp",0)],
1101                    "check": [(None,None)]
1102                   })
1103            self.session = load_session(self.filename(),
1104                                        shapefile_callback =s_cb.s_cb)
1105            self.assertRaises(IndexError,
1106                                s_cb.s_cb, None, "search")
1107            
1108    
1109    
1110  if __name__ == "__main__":  if __name__ == "__main__":
1111      unittest.main()      support.run_tests()
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