/[thuban]/branches/WIP-pyshapelib-bramz/test/test_proj.py
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revision 1821 by bh, Tue Oct 14 13:54:03 2003 UTC revision 1888 by jan, Thu Oct 30 09:31:56 2003 UTC
# Line 23  support.initthuban() Line 23  support.initthuban()
23  from Thuban import _  from Thuban import _
24  from Thuban.Model.proj import Projection, ProjFile, \  from Thuban.Model.proj import Projection, ProjFile, \
25       PROJ_UNITS_METERS, PROJ_UNITS_DEGREES       PROJ_UNITS_METERS, PROJ_UNITS_DEGREES
26    from Thuban.Model.messages import PROJECTION_ADDED, PROJECTION_REMOVED, \
27         PROJECTION_REPLACED
28  import Thuban.Model.resource as resource  import Thuban.Model.resource as resource
29    
30  from xmlsupport import sax_eventlist  from xmlsupport import sax_eventlist
# Line 79  class TestProjection(unittest.TestCase, Line 80  class TestProjection(unittest.TestCase,
80          self.assertEquals(proj.GetParameter("south"), "south")          self.assertEquals(proj.GetParameter("south"), "south")
81    
82      def test_get_projection_units_geo(self):      def test_get_projection_units_geo(self):
83          """Test Projection.GetProjectedUnits() for geographic projection"""          """Test Projection.GetProjectedUnits() for geographic projection.
84            Test for the alias 'longlat' as well.
85            """
86          proj = Projection(["proj=latlong", "to_meter=0.017453292519943295",          proj = Projection(["proj=latlong", "to_meter=0.017453292519943295",
87                             "ellps=clrk66"])                             "ellps=clrk66"])
88          self.assertEquals(proj.GetProjectedUnits(), PROJ_UNITS_DEGREES)          self.assertEquals(proj.GetProjectedUnits(), PROJ_UNITS_DEGREES)
89            proj = Projection(["proj=longlat", "to_meter=0.017453292519943295",
90                               "ellps=clrk66"])
91            self.assertEquals(proj.GetProjectedUnits(), PROJ_UNITS_DEGREES)
92    
93      def test_get_projection_units_normal(self):      def test_get_projection_units_normal(self):
94          """Test Projection.GetProjectedUnits() for normal projection"""          """Test Projection.GetProjectedUnits() for normal projection"""
# Line 130  class TestProjFileSimple: Line 136  class TestProjFileSimple:
136          self.assertEquals(proj_file.GetFilename(), "other_name")          self.assertEquals(proj_file.GetFilename(), "other_name")
137    
138    
139  class TestProjFile(unittest.TestCase):  class TestProjFile(unittest.TestCase, support.SubscriberMixin):
140    
141      """Test cases for reading and writing projection files.      """Test cases for ProjFile objects"""
     """  
142    
143      def setUp(self):      def setUp(self):
144            self.clear_messages()
145          self.proj0 = Projection(["proj=tmerc", "ellps=clrk66"])          self.proj0 = Projection(["proj=tmerc", "ellps=clrk66"])
146          self.proj1 = Projection(["proj=utm", "ellps=clrk66"])          self.proj1 = Projection(["proj=utm", "ellps=clrk66"])
147          self.proj2 = Projection(["proj=lcc", "ellps=clrk66",          self.proj2 = Projection(["proj=lcc", "ellps=clrk66",
148                                   "lat_1=0", "lat_2=20"])                                   "lat_1=0", "lat_2=20"])
149            self.proj_file = ProjFile("some_filename")
150            for msg in [PROJECTION_ADDED, PROJECTION_REMOVED, PROJECTION_REPLACED]:
151                self.proj_file.Subscribe(msg, self.subscribe_with_params, msg)
152    
153        def tearDown(self):
154            self.clear_messages()
155            self.proj_file.Destroy()
156    
157      def test_add_remove(self):      def test_add_remove(self):
158          """Test ProjFile.Add() and ProjFile.Remove()"""          """Test ProjFile.Add() and ProjFile.Remove()"""
159          proj_file = ProjFile("some_filename")          self.proj_file.Add(self.proj0)
160          proj_file.Add(self.proj0)          self.proj_file.Add(self.proj1)
161          proj_file.Add(self.proj1)          self.assertEquals(self.proj_file.GetProjections(),
162          self.assertEquals(proj_file.GetProjections(), [self.proj0, self.proj1])                            [self.proj0, self.proj1])
163          proj_file.Remove(self.proj0)          self.check_messages([(self.proj0, PROJECTION_ADDED),
164          self.assertEquals(proj_file.GetProjections(), [self.proj1])                               (self.proj1, PROJECTION_ADDED)])
165            self.clear_messages()
166    
167            self.proj_file.Remove(self.proj0)
168            self.assertEquals(self.proj_file.GetProjections(), [self.proj1])
169            self.check_messages([(self.proj0, PROJECTION_REMOVED)])
170    
171      def test_remove_non_existing(self):      def test_remove_non_existing(self):
172          """Test ProjFile.Remove(<proj not in projfile>)"""          """Test ProjFile.Remove(<proj not in projfile>)"""
173          proj_file = ProjFile("some_filename")          self.assertRaises(ValueError, self.proj_file.Remove, self.proj0)
174          self.assertRaises(ValueError, proj_file.Remove, self.proj0)          # Nothing happened, so no messages should have been sent
175            self.check_messages([])
176    
177      def test_replace(self):      def test_replace(self):
178          """Test ProjFile.Replace()"""          """Test ProjFile.Replace()"""
179          proj_file = ProjFile("some_filename")          self.proj_file.Add(self.proj0)
180          proj_file.Add(self.proj0)          self.proj_file.Add(self.proj1)
181          proj_file.Add(self.proj1)          self.clear_messages()
182    
183          # Replace()          # Replace()
184          proj_file.Replace(self.proj0, self.proj2)          self.proj_file.Replace(self.proj0, self.proj2)
185          self.assertEquals(proj_file.GetProjections(), [self.proj2, self.proj1])          self.assertEquals(self.proj_file.GetProjections(),
186                              [self.proj2, self.proj1])
187            self.check_messages([(self.proj0, self.proj2, PROJECTION_REPLACED)])
188    
189      def test_replace_non_existing(self):      def test_replace_non_existing(self):
190          """Test ProjFile.Replace(<proj not in projfile>, <some proj>)"""          """Test ProjFile.Replace(<proj not in projfile>, <some proj>)"""
191          proj_file = ProjFile("some_filename")          self.proj_file.Add(self.proj0)
192          proj_file.Add(self.proj0)          self.proj_file.Add(self.proj1)
193          proj_file.Add(self.proj1)          self.clear_messages()
194          self.assertRaises(ValueError,          self.assertRaises(ValueError,
195                            proj_file.Replace, self.proj2, self.proj0)                            self.proj_file.Replace, self.proj2, self.proj0)
196            # All projections should still be there
197            self.assertEquals(self.proj_file.GetProjections(),
198                              [self.proj0, self.proj1])
199            # Nothing happened, so no messages should have been sent
200            self.check_messages([])
201    
202    
203  class ProjFileTest(unittest.TestCase, support.FileTestMixin,  class ProjFileTest(unittest.TestCase, support.FileTestMixin,
# Line 186  class ProjFileTest(unittest.TestCase, su Line 212  class ProjFileTest(unittest.TestCase, su
212    
213  class ProjFileReadTests(ProjFileTest):  class ProjFileReadTests(ProjFileTest):
214    
215      """Test read ProjFile objects from files"""      """Test read ProjFile objects from files
216    
217        The files only cover error handling and the system projection file.
218        """
219    
220      def test_read_non_existing_file(self):      def test_read_non_existing_file(self):
221          """Test read_proj_file with non-existing file"""          """Test read_proj_file with non-existing file"""
# Line 225  class ProjFileReadTests(ProjFileTest): Line 254  class ProjFileReadTests(ProjFileTest):
254          self.assertEquals(warnings, [])          self.assertEquals(warnings, [])
255          self.assert_(len(projfile.GetProjections()) > 0)          self.assert_(len(projfile.GetProjections()) > 0)
256    
257            # see whether it got cached and we get the same projfile object
258            # when we read the file again
259            projfile2, warnings = resource.get_system_proj_file()
260            self.assert_(projfile is projfile2)
261    
262    
263  class WriteProjFileTests(ProjFileTest):  class WriteProjFileTests(ProjFileTest):
264    
# Line 293  class WriteProjFileTests(ProjFileTest): Line 327  class WriteProjFileTests(ProjFileTest):
327          self.doTestWrite(pf, file_contents)          self.doTestWrite(pf, file_contents)
328    
329    
330  class TestLoadingProjFile(support.FileLoadTestCase):  class ProjFileLoadTestCase(support.FileLoadTestCase):
331    
332        """Base class for the test cases that read specific test files"""
333    
334      file_extension = ".proj"      file_extension = ".proj"
335    
336        def tearDown(self):
337            """Clear the cache explicitly"""
338            resource.clear_proj_file_cache()
339    
340    
341    class TestLoadingProjFile(ProjFileLoadTestCase):
342    
343      file_contents = '''\      file_contents = '''\
344  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
345  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">
# Line 347  class TestLoadingProjFile(support.FileLo Line 391  class TestLoadingProjFile(support.FileLo
391                                 "proj=tmerc", "units=m",                                 "proj=tmerc", "units=m",
392                                 "x_0=400000.000", "y_0=0.000"])                                 "x_0=400000.000", "y_0=0.000"])
393    
394        def test_caching(self):
395            # test whether the projfile cache works
396            projfile, warnings = resource.read_proj_file(self.filename())
397            projfile2, warnings = resource.read_proj_file(self.filename())
398    
399  class TestLoadingProjFileWithEmptyProjectionlist(support.FileLoadTestCase):          # Both projfiles should be the same object
400            self.assert_(projfile2 is projfile)
401    
402            # If we clear the cache we should get a new one.
403            resource.clear_proj_file_cache()
404            projfile3, warnings = resource.read_proj_file(self.filename())
405            self.assert_(projfile3 is not projfile)
406    
407    
408    class TestLoadingProjFileWithEmptyProjectionlist(ProjFileLoadTestCase):
409    
     file_extension = ".proj"  
410      file_contents = '''\      file_contents = '''\
411  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
412  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">
# Line 367  class TestLoadingProjFileWithEmptyProjec Line 423  class TestLoadingProjFileWithEmptyProjec
423          self.assertEquals(len(projfile.GetProjections()), 0)          self.assertEquals(len(projfile.GetProjections()), 0)
424    
425    
426  class TestProjFileWithInvalidParameters(unittest.TestCase,  class TestProjFileWithInvalidParameters(ProjFileLoadTestCase):
                                         support.FileLoadTestCase):  
427    
     file_extension = ".proj"  
428      file_contents = '''\      file_contents = '''\
429  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
430  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">
# Line 410  class TestProjFileWithInvalidParameters( Line 464  class TestProjFileWithInvalidParameters(
464    
465    
466  if __name__ == "__main__":  if __name__ == "__main__":
467      unittest.main()      support.run_tests()
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