/[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 1982 by bh, Thu Nov 27 15:25:34 2003 UTC
# Line 55  class TestProjection(unittest.TestCase, Line 55  class TestProjection(unittest.TestCase,
55                                   (3620891.3077618643, 0.0,                                   (3620891.3077618643, 0.0,
56                                    3875381.8535437919, 252962.10480170773),                                    3875381.8535437919, 252962.10480170773),
57                                   epsilon = 1e-5)                                   epsilon = 1e-5)
58            self.assertFloatSeqEqual(proj.InverseBBox((3620891.3077618643, 0.0,
59                                                       3875381.8535437919,
60                                                       252962.10480170773)),
61                                     (-0.018341599754143501, 0.0,
62                                      2.017992992681688, 2.0377390677846736),
63                                     epsilon = 1e-5)
64    
65          # GetName()          # GetName()
66          self.assertEquals(proj.GetName(), _("Unknown"))          self.assertEquals(proj.GetName(), _("Unknown"))
# Line 80  class TestProjection(unittest.TestCase, Line 86  class TestProjection(unittest.TestCase,
86          self.assertEquals(proj.GetParameter("south"), "south")          self.assertEquals(proj.GetParameter("south"), "south")
87    
88      def test_get_projection_units_geo(self):      def test_get_projection_units_geo(self):
89          """Test Projection.GetProjectedUnits() for geographic projection"""          """Test Projection.GetProjectedUnits() for geographic projection.
90            Test for the alias 'longlat' as well.
91            """
92          proj = Projection(["proj=latlong", "to_meter=0.017453292519943295",          proj = Projection(["proj=latlong", "to_meter=0.017453292519943295",
93                             "ellps=clrk66"])                             "ellps=clrk66"])
94          self.assertEquals(proj.GetProjectedUnits(), PROJ_UNITS_DEGREES)          self.assertEquals(proj.GetProjectedUnits(), PROJ_UNITS_DEGREES)
95            proj = Projection(["proj=longlat", "to_meter=0.017453292519943295",
96                               "ellps=clrk66"])
97            self.assertEquals(proj.GetProjectedUnits(), PROJ_UNITS_DEGREES)
98    
99      def test_get_projection_units_normal(self):      def test_get_projection_units_normal(self):
100          """Test Projection.GetProjectedUnits() for normal projection"""          """Test Projection.GetProjectedUnits() for normal projection"""
# Line 133  class TestProjFileSimple: Line 144  class TestProjFileSimple:
144    
145  class TestProjFile(unittest.TestCase, support.SubscriberMixin):  class TestProjFile(unittest.TestCase, support.SubscriberMixin):
146    
147      """Test cases for reading and writing projection files.      """Test cases for ProjFile objects"""
     """  
148    
149      def setUp(self):      def setUp(self):
150          self.clear_messages()          self.clear_messages()
# Line 208  class ProjFileTest(unittest.TestCase, su Line 218  class ProjFileTest(unittest.TestCase, su
218    
219  class ProjFileReadTests(ProjFileTest):  class ProjFileReadTests(ProjFileTest):
220    
221      """Test read ProjFile objects from files"""      """Test read ProjFile objects from files
222    
223        The files only cover error handling and the system projection file.
224        """
225    
226      def test_read_non_existing_file(self):      def test_read_non_existing_file(self):
227          """Test read_proj_file with non-existing file"""          """Test read_proj_file with non-existing file"""
# Line 222  class ProjFileReadTests(ProjFileTest): Line 235  class ProjFileReadTests(ProjFileTest):
235          As currently written this only works on unix-like systems and          As currently written this only works on unix-like systems and
236          not e.g. on MS Windows.          not e.g. on MS Windows.
237          """          """
238            if os.name != "posix":
239                raise support.SkipTest("Test only works on posix systems")
240          filename = self.filename()          filename = self.filename()
241          file = open(filename, "w")          file = open(filename, "w")
242          file.close()          file.close()
# Line 237  class ProjFileReadTests(ProjFileTest): Line 252  class ProjFileReadTests(ProjFileTest):
252          self.assertRaises(SAXParseException, resource.read_proj_file, filename)          self.assertRaises(SAXParseException, resource.read_proj_file, filename)
253    
254      def test_get_system_proj_file(self):      def test_get_system_proj_file(self):
255          """Test resource.get_system_proj_file()          """Test resource.get_system_proj_file(DEFAULT_PROJ_FILE)
256    
257          This is primarily to test whether the system proj file contains          This is primarily to test whether the system proj file contains
258          invalid projection paramers and whether the proj file is not          invalid projection paramers and whether the proj file is not
259          empty          empty
260          """          """
261          projfile, warnings = resource.get_system_proj_file()          projfile, warnings\
262                      = resource.get_system_proj_file(resource.DEFAULT_PROJ_FILE)
263          self.assertEquals(warnings, [])          self.assertEquals(warnings, [])
264          self.assert_(len(projfile.GetProjections()) > 0)          self.assert_(len(projfile.GetProjections()) > 0)
265    
266            # see whether it got cached and we get the same projfile object
267            # when we read the file again
268            projfile2, warnings \
269                       = resource.get_system_proj_file(resource.DEFAULT_PROJ_FILE)
270            self.assert_(projfile is projfile2)
271    
272    
273  class WriteProjFileTests(ProjFileTest):  class WriteProjFileTests(ProjFileTest):
274    
# Line 315  class WriteProjFileTests(ProjFileTest): Line 337  class WriteProjFileTests(ProjFileTest):
337          self.doTestWrite(pf, file_contents)          self.doTestWrite(pf, file_contents)
338    
339    
340  class TestLoadingProjFile(support.FileLoadTestCase):  class ProjFileLoadTestCase(support.FileLoadTestCase):
341    
342        """Base class for the test cases that read specific test files"""
343    
344      file_extension = ".proj"      file_extension = ".proj"
345    
346        def tearDown(self):
347            """Clear the cache explicitly"""
348            resource.clear_proj_file_cache()
349    
350    
351    class TestLoadingProjFile(ProjFileLoadTestCase):
352    
353      file_contents = '''\      file_contents = '''\
354  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
355  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">
# Line 369  class TestLoadingProjFile(support.FileLo Line 401  class TestLoadingProjFile(support.FileLo
401                                 "proj=tmerc", "units=m",                                 "proj=tmerc", "units=m",
402                                 "x_0=400000.000", "y_0=0.000"])                                 "x_0=400000.000", "y_0=0.000"])
403    
404        def test_caching(self):
405            # test whether the projfile cache works
406            projfile, warnings = resource.read_proj_file(self.filename())
407            projfile2, warnings = resource.read_proj_file(self.filename())
408    
409            # Both projfiles should be the same object
410            self.assert_(projfile2 is projfile)
411    
412  class TestLoadingProjFileWithEmptyProjectionlist(support.FileLoadTestCase):          # If we clear the cache we should get a new one.
413            resource.clear_proj_file_cache()
414            projfile3, warnings = resource.read_proj_file(self.filename())
415            self.assert_(projfile3 is not projfile)
416    
417    
418    class TestLoadingProjFileWithEmptyProjectionlist(ProjFileLoadTestCase):
419    
     file_extension = ".proj"  
420      file_contents = '''\      file_contents = '''\
421  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
422  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">
# Line 389  class TestLoadingProjFileWithEmptyProjec Line 433  class TestLoadingProjFileWithEmptyProjec
433          self.assertEquals(len(projfile.GetProjections()), 0)          self.assertEquals(len(projfile.GetProjections()), 0)
434    
435    
436  class TestProjFileWithInvalidParameters(unittest.TestCase,  class TestProjFileWithInvalidParameters(ProjFileLoadTestCase):
                                         support.FileLoadTestCase):  
437    
     file_extension = ".proj"  
438      file_contents = '''\      file_contents = '''\
439  <?xml version="1.0" encoding="UTF-8"?>  <?xml version="1.0" encoding="UTF-8"?>
440  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">  <!DOCTYPE projectionlist SYSTEM "projfile.dtd">
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