/[thuban]/branches/WIP-pyshapelib-bramz/test/test_proj.py
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revision 1827 by bh, Tue Oct 14 16:04:35 2003 UTC revision 1933 by bh, Tue Nov 11 16:37:53 2003 UTC
# Line 80  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 133  class TestProjFileSimple: Line 138  class TestProjFileSimple:
138    
139  class TestProjFile(unittest.TestCase, support.SubscriberMixin):  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()          self.clear_messages()
# Line 208  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 237  class ProjFileReadTests(ProjFileTest): Line 244  class ProjFileReadTests(ProjFileTest):
244          self.assertRaises(SAXParseException, resource.read_proj_file, filename)          self.assertRaises(SAXParseException, resource.read_proj_file, filename)
245    
246      def test_get_system_proj_file(self):      def test_get_system_proj_file(self):
247          """Test resource.get_system_proj_file()          """Test resource.get_system_proj_file(DEFAULT_PROJ_FILE)
248    
249          This is primarily to test whether the system proj file contains          This is primarily to test whether the system proj file contains
250          invalid projection paramers and whether the proj file is not          invalid projection paramers and whether the proj file is not
251          empty          empty
252          """          """
253          projfile, warnings = resource.get_system_proj_file()          projfile, warnings\
254                      = resource.get_system_proj_file(resource.DEFAULT_PROJ_FILE)
255          self.assertEquals(warnings, [])          self.assertEquals(warnings, [])
256          self.assert_(len(projfile.GetProjections()) > 0)          self.assert_(len(projfile.GetProjections()) > 0)
257    
258            # see whether it got cached and we get the same projfile object
259            # when we read the file again
260            projfile2, warnings \
261                       = resource.get_system_proj_file(resource.DEFAULT_PROJ_FILE)
262            self.assert_(projfile is projfile2)
263    
264    
265  class WriteProjFileTests(ProjFileTest):  class WriteProjFileTests(ProjFileTest):
266    
# Line 315  class WriteProjFileTests(ProjFileTest): Line 329  class WriteProjFileTests(ProjFileTest):
329          self.doTestWrite(pf, file_contents)          self.doTestWrite(pf, file_contents)
330    
331    
332  class TestLoadingProjFile(support.FileLoadTestCase):  class ProjFileLoadTestCase(support.FileLoadTestCase):
333    
334        """Base class for the test cases that read specific test files"""
335    
336      file_extension = ".proj"      file_extension = ".proj"
337    
338        def tearDown(self):
339            """Clear the cache explicitly"""
340            resource.clear_proj_file_cache()
341    
342    
343    class TestLoadingProjFile(ProjFileLoadTestCase):
344    
345      file_contents = '''\      file_contents = '''\
346  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
347  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">
# Line 369  class TestLoadingProjFile(support.FileLo Line 393  class TestLoadingProjFile(support.FileLo
393                                 "proj=tmerc", "units=m",                                 "proj=tmerc", "units=m",
394                                 "x_0=400000.000", "y_0=0.000"])                                 "x_0=400000.000", "y_0=0.000"])
395    
396        def test_caching(self):
397            # test whether the projfile cache works
398            projfile, warnings = resource.read_proj_file(self.filename())
399            projfile2, warnings = resource.read_proj_file(self.filename())
400    
401  class TestLoadingProjFileWithEmptyProjectionlist(support.FileLoadTestCase):          # Both projfiles should be the same object
402            self.assert_(projfile2 is projfile)
403    
404            # If we clear the cache we should get a new one.
405            resource.clear_proj_file_cache()
406            projfile3, warnings = resource.read_proj_file(self.filename())
407            self.assert_(projfile3 is not projfile)
408    
409    
410    class TestLoadingProjFileWithEmptyProjectionlist(ProjFileLoadTestCase):
411    
     file_extension = ".proj"  
412      file_contents = '''\      file_contents = '''\
413  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
414  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">
# Line 389  class TestLoadingProjFileWithEmptyProjec Line 425  class TestLoadingProjFileWithEmptyProjec
425          self.assertEquals(len(projfile.GetProjections()), 0)          self.assertEquals(len(projfile.GetProjections()), 0)
426    
427    
428  class TestProjFileWithInvalidParameters(unittest.TestCase,  class TestProjFileWithInvalidParameters(ProjFileLoadTestCase):
                                         support.FileLoadTestCase):  
429    
     file_extension = ".proj"  
430      file_contents = '''\      file_contents = '''\
431  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
432  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">
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