/[thuban]/branches/WIP-pyshapelib-bramz/test/test_layer.py
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revision 1278 by jonathan, Fri Jun 20 17:46:58 2003 UTC revision 2351 by bh, Sat Sep 25 18:49:20 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  __version__ = "$Revision$" Line 16  __version__ = "$Revision$"
16  import os  import os
17  import unittest  import unittest
18    
19    import mockgeo
20  import support  import support
21  support.initthuban()  support.initthuban()
22    
# Line 23  import shapelib Line 24  import shapelib
24  import dbflib  import dbflib
25    
26  from Thuban.Model.session import Session  from Thuban.Model.session import Session
27  from Thuban.Model.layer import BaseLayer, Layer, RasterLayer, \  from Thuban.Model.layer import BaseLayer, Layer, RasterLayer
28       SHAPETYPE_POLYGON, SHAPETYPE_ARC, SHAPETYPE_POINT  from Thuban.Model.data import SHAPETYPE_POLYGON, SHAPETYPE_ARC, SHAPETYPE_POINT
29  from Thuban.Model.messages import LAYER_LEGEND_CHANGED, \  from Thuban.Model.messages import LAYER_LEGEND_CHANGED, \
30       LAYER_VISIBILITY_CHANGED, LAYER_SHAPESTORE_REPLACED, LAYER_CHANGED       LAYER_VISIBILITY_CHANGED, LAYER_SHAPESTORE_REPLACED, LAYER_CHANGED
 from Thuban.Model.color import Color  
31  from Thuban.Model.table import FIELDTYPE_DOUBLE, FIELDTYPE_STRING, MemoryTable  from Thuban.Model.table import FIELDTYPE_DOUBLE, FIELDTYPE_STRING, MemoryTable
32  from Thuban.Model.proj import Projection  from Thuban.Model.proj import Projection
33  from Thuban.Model.data import DerivedShapeStore  from Thuban.Model.data import DerivedShapeStore
34  from Thuban.Model.classification import Classification, ClassGroupSingleton  from Thuban.Model.classification import Classification, ClassGroupSingleton, \
35         ClassGroupRange
36    
37  import Thuban.Model.resource  import Thuban.Model.resource
38    
# Line 40  class TestLayer(unittest.TestCase, suppo Line 41  class TestLayer(unittest.TestCase, suppo
41    
42      """Test cases for different layer (shape) types"""      """Test cases for different layer (shape) types"""
43    
     def assertFloatTuplesEqual(self, test, value):  
         """Assert equality of two lists of tuples of float"""  
         for i in range(len(test)):  
             self.assertFloatSeqEqual(test[i], value[i])  
   
44      def setUp(self):      def setUp(self):
45          """Create a session self.session and initialize self.layer to None"""          """Create a session self.session and initialize self.layer to None"""
46          self.session = Session("Test session for %s" % self.__class__)          self.session = Session("Test session for %s" % self.__class__)
# Line 52  class TestLayer(unittest.TestCase, suppo Line 48  class TestLayer(unittest.TestCase, suppo
48    
49      def tearDown(self):      def tearDown(self):
50          """Call the layer's Destroy method and set session and layer to None"""          """Call the layer's Destroy method and set session and layer to None"""
51            self.session.Destroy()
52          self.session = None          self.session = None
53          if self.layer is not None:          if self.layer is not None:
54              self.layer.Destroy()              self.layer.Destroy()
# Line 82  class TestLayer(unittest.TestCase, suppo Line 79  class TestLayer(unittest.TestCase, suppo
79          self.assertEquals(layer.GetProjection(), None)          self.assertEquals(layer.GetProjection(), None)
80    
81          # set/get projection          # set/get projection
82          proj = Projection(["proj=utm", "zone=26"])          proj = Projection(["proj=utm", "zone=26", "ellps=clrk66"])
83    
84          layer.SetProjection(proj)          layer.SetProjection(proj)
85          self.failUnless(layer.GetProjection() is proj)          self.failUnless(layer.GetProjection() is proj)
# Line 101  class TestLayer(unittest.TestCase, suppo Line 98  class TestLayer(unittest.TestCase, suppo
98          self.assertEquals(layer.ShapeType(), SHAPETYPE_ARC)          self.assertEquals(layer.ShapeType(), SHAPETYPE_ARC)
99          self.assertEquals(layer.NumShapes(), 839)          self.assertEquals(layer.NumShapes(), 839)
100          shape = layer.Shape(32)          shape = layer.Shape(32)
101          self.assertFloatTuplesEqual(shape.Points(),          self.assertPointListEquals(shape.Points(),
102                                      [(-15.082174301147461, 66.27738189697265),                                     [[(-15.082174301147461, 66.27738189697265),
103                                       (-15.026350021362305, 66.27339172363281)])                                       (-15.026350021362305, 66.27339172363281)]])
104          self.assertFloatSeqEqual(layer.BoundingBox(),          self.assertFloatSeqEqual(layer.BoundingBox(),
105                                   [-24.450359344482422, 63.426830291748047,                                   [-24.450359344482422, 63.426830291748047,
106                                    -13.55668830871582, 66.520111083984375])                                    -13.55668830871582, 66.520111083984375])
107          self.assertEquals(layer.ShapesInRegion((-24.0, 64.0, -23.75, 64.25)),          shapes = layer.ShapesInRegion((-24.0, 64.0, -23.75, 64.25))
108            self.assertEquals([s.ShapeID() for s in shapes],
109                            [613, 726, 838])                            [613, 726, 838])
110    
111          self.assertFloatSeqEqual(layer.ShapesBoundingBox([32]),          self.assertFloatSeqEqual(layer.ShapesBoundingBox([32]),
# Line 115  class TestLayer(unittest.TestCase, suppo Line 113  class TestLayer(unittest.TestCase, suppo
113                             -15.026350021362305, 66.27738189697265])                             -15.026350021362305, 66.27738189697265])
114    
115          shape = layer.Shape(33)          shape = layer.Shape(33)
116          self.assertFloatTuplesEqual(shape.Points(),          self.assertPointListEquals(shape.Points(),
117                                      [(-22.248506546020508, 66.30645751953125),                                     [[(-22.24850654602050, 66.30645751953125),
118                                       (-22.232730865478516, 66.294075012207031),                                       (-22.23273086547851, 66.29407501220703),
119                                       (-22.23158073425293,  66.287689208984375),                                       (-22.23158073425293,  66.2876892089843),
120                                       (-22.246318817138672, 66.270065307617188)])                                       (-22.24631881713867, 66.27006530761718)]])
121    
122          self.assertFloatSeqEqual(layer.ShapesBoundingBox([32, 33]),          self.assertFloatSeqEqual(layer.ShapesBoundingBox([32, 33]),
123                                   [-22.248506546020508, 66.270065307617188,                                   [-22.248506546020508, 66.270065307617188,
# Line 137  class TestLayer(unittest.TestCase, suppo Line 135  class TestLayer(unittest.TestCase, suppo
135          self.assertEquals(layer.ShapeType(), SHAPETYPE_POLYGON)          self.assertEquals(layer.ShapeType(), SHAPETYPE_POLYGON)
136          self.assertEquals(layer.NumShapes(), 156)          self.assertEquals(layer.NumShapes(), 156)
137          shape = layer.Shape(4)          shape = layer.Shape(4)
138          self.assertFloatTuplesEqual(shape.Points(),          self.assertPointListEquals(shape.Points(),
139                                      [(-22.406391143798828, 64.714111328125),                                     [[(-22.40639114379882, 64.714111328125),
140                                       (-22.41621208190918, 64.71600341796875),                                       (-22.41621208190918, 64.7160034179687),
141                                       (-22.406051635742188, 64.719200134277344),                                       (-22.40605163574218, 64.719200134277),
142                                       (-22.406391143798828, 64.714111328125)])                                       (-22.40639114379882, 64.714111328125)]])
143          self.assertFloatSeqEqual(layer.BoundingBox(),          self.assertFloatSeqEqual(layer.BoundingBox(),
144                                   [-24.546524047851562, 63.286754608154297,                                   [-24.546524047851562, 63.286754608154297,
145                                    -13.495815277099609, 66.563774108886719])                                    -13.495815277099609, 66.563774108886719])
146          self.assertEquals(layer.ShapesInRegion((-24.0, 64.0, -23.9, 64.1)),          shapes = layer.ShapesInRegion((-24.0, 64.0, -23.9, 64.1))
147            self.assertEquals([s.ShapeID() for s in shapes],
148                            [91, 92, 144, 146, 148, 150, 152, 153])                            [91, 92, 144, 146, 148, 150, 152, 153])
149    
150      def test_point_layer(self):      def test_point_layer(self):
# Line 157  class TestLayer(unittest.TestCase, suppo Line 156  class TestLayer(unittest.TestCase, suppo
156          self.assertEquals(layer.ShapeType(), SHAPETYPE_POINT)          self.assertEquals(layer.ShapeType(), SHAPETYPE_POINT)
157          self.assertEquals(layer.NumShapes(), 34)          self.assertEquals(layer.NumShapes(), 34)
158          shape = layer.Shape(0)          shape = layer.Shape(0)
159          self.assertFloatTuplesEqual(shape.Points(),          self.assertPointListEquals(shape.Points(),
160                                      [(-22.711074829101562, 66.36572265625)])                                     [[(-22.711074829101562, 66.36572265625)]])
161          self.assertFloatSeqEqual(layer.BoundingBox(),          self.assertFloatSeqEqual(layer.BoundingBox(),
162                                   [-23.806047439575195, 63.405960083007812,                                   [-23.806047439575195, 63.405960083007812,
163                                    -15.12291431427002, 66.36572265625])                                    -15.12291431427002, 66.36572265625])
164          self.assertEquals(layer.ShapesInRegion((-24.0, 64.0, -23.80, 64.1)),          shapes = layer.ShapesInRegion((-24.0, 64.0, -23.80, 64.1))
165            self.assertEquals([s.ShapeID() for s in shapes],
166                            [0, 1, 2, 3, 4, 5, 27, 28, 29, 30, 31])                            [0, 1, 2, 3, 4, 5, 27, 28, 29, 30, 31])
167    
168        def test_arc_layer_with_projection(self):
169            """Test Layer with point shapes and a projection"""
170            # We use mock data here so that we have precise control over the
171            # values
172            table = MemoryTable([("FOO", FIELDTYPE_STRING)], [("bla",)])
173            store = mockgeo.SimpleShapeStore(SHAPETYPE_ARC,
174                                  [[[(9884828.7209840547, 5607720.9774499247),
175                                     (11298336.04640449, 9287823.2044059951)]]],
176                                             table)
177            layer = self.layer = Layer("Test Layer", store)
178    
179            proj = Projection(["proj=lcc", "lon_0=0", "lat_1=20n", "lat_2=60n",
180                               "ellps=clrk66"])
181            layer.SetProjection(proj)
182    
183            self.assertFloatSeqEqual(layer.BoundingBox(),
184                                     (9884828.7209840547, 5607720.9774499247,
185                                      11298336.04640449, 9287823.2044059951))
186            self.assertFloatSeqEqual(layer.LatLongBoundingBox(),
187                                     (90.0, -8.90043373, 120, 11.1616263))
188            shapes = layer.ShapesInRegion((100, -10, 150, +10))
189            self.assertEquals([s.ShapeID() for s in shapes], [0])
190            self.assertFloatSeqEqual(layer.ShapesBoundingBox([0]),
191                                     (90.0, -8.90043373, 120, 11.1616263))
192    
193            self.assertFloatSeqEqual(layer.ClipBoundingBox((-180, -6, 100, +120)),
194                                     (90.0, -6, 100, 11.1616263))
195            shapes = layer.ShapesInRegion((-180, -170, 200, +120))
196            self.assertEquals([s.ShapeID() for s in shapes],[0])
197    
198      def test_empty_layer(self):      def test_empty_layer(self):
199          """Test Layer with empty shape file"""          """Test Layer with empty shape file"""
200          # create an empty shape file          # create an empty shape file
# Line 176  class TestLayer(unittest.TestCase, suppo Line 206  class TestLayer(unittest.TestCase, suppo
206          dbffilename = self.temp_file_name("layer_empty.dbf")          dbffilename = self.temp_file_name("layer_empty.dbf")
207          dbf = dbflib.create(dbffilename)          dbf = dbflib.create(dbffilename)
208          dbf.add_field("NAME", dbflib.FTString, 20, 0)          dbf.add_field("NAME", dbflib.FTString, 20, 0)
209            dbf.close()
210    
211          # Now try to open it.          # Now try to open it.
212          layer = self.layer = Layer("Empty Layer",          layer = self.layer = Layer("Empty Layer",
# Line 193  class TestLayer(unittest.TestCase, suppo Line 224  class TestLayer(unittest.TestCase, suppo
224    
225      def test_raster_layer(self):      def test_raster_layer(self):
226          if not Thuban.Model.resource.has_gdal_support():          if not Thuban.Model.resource.has_gdal_support():
227              return              raise support.SkipTest("No gdal support")
228    
229          filename = self.build_path("island.tif")          filename = self.build_path("island.tif")
230          layer = RasterLayer("Test RasterLayer", filename)          layer = RasterLayer("Test RasterLayer", filename)
231          self.failIf(layer.HasClassification())          self.failIf(layer.HasClassification())
232          self.failIf(layer.HasShapes())          self.failIf(layer.HasShapes())
233          self.assertEquals(layer.GetImageFilename(), filename)          self.assertEquals(layer.GetImageFilename(), os.path.abspath(filename))
234          self.assertFloatSeqEqual(layer.BoundingBox(),          self.assertFloatSeqEqual(layer.BoundingBox(),
235                                   [-24.5500000, 63.2833330,                                   [-24.5500000, 63.2833330,
236                                    -13.4916670, 66.5666670])                                    -13.4916670, 66.5666670])
# Line 217  class TestLayer(unittest.TestCase, suppo Line 248  class TestLayer(unittest.TestCase, suppo
248              layer.SetShapeStore(derived)              layer.SetShapeStore(derived)
249              self.assert_(layer.ShapeStore() is derived)              self.assert_(layer.ShapeStore() is derived)
250    
251              # check that an exception is raised when the number              self.assertEquals(layer.ShapeType(), SHAPETYPE_ARC)
252              # of shapes differ from the number of rows in a table.              self.assertEquals(layer.NumShapes(), 839)
253              layer2 = Layer("Test Layer",              shape = layer.Shape(32)
254                             self.open_shapefile("political.shp"))              self.assertPointListEquals(shape.Points(),
255              store2 = layer2.ShapeStore()                                         [[(-15.082174301147, 66.277381896972),
256              self.assertRaises(ValueError,                                           (-15.026350021362, 66.273391723632)]])
257                                DerivedShapeStore, store2, store.Table())              self.assertFloatSeqEqual(layer.BoundingBox(),
258                                         [-24.450359344482422, 63.426830291748047,
259                                          -13.55668830871582, 66.520111083984375])
260                shapes = layer.ShapesInRegion((-24.0, 64.0, -23.75, 64.25))
261                self.assertEquals([s.ShapeID() for s in shapes],
262                                  [613, 726, 838])
263    
264                self.assertFloatSeqEqual(layer.ShapesBoundingBox([32]),
265                                         [-15.082174301147461, 66.27339172363281,
266                                          -15.026350021362305, 66.27738189697265])
267    
268          finally:          finally:
269              store = derived = None              store = derived = None
             layer2.Destroy()  
             store2 = None  
270    
271    
272  class SetShapeStoreTests(unittest.TestCase, support.SubscriberMixin):  class SetShapeStoreTests(unittest.TestCase, support.SubscriberMixin):
# Line 241  class SetShapeStoreTests(unittest.TestCa Line 279  class SetShapeStoreTests(unittest.TestCa
279                                            "cultural_landmark-point.dbf")                                            "cultural_landmark-point.dbf")
280          self.store = self.session.OpenShapefile(self.shapefilename)          self.store = self.session.OpenShapefile(self.shapefilename)
281          self.layer = Layer("test layer", self.store)          self.layer = Layer("test layer", self.store)
282          self.classification = Classification(field = "CLPTLABEL")          self.classification = Classification()
283          self.classification.AppendGroup(ClassGroupSingleton("FARM"))          self.classification.AppendGroup(ClassGroupSingleton("FARM"))
284            self.layer.SetClassificationColumn("CLPTLABEL")
285          self.layer.SetClassification(self.classification)          self.layer.SetClassification(self.classification)
286          self.layer.UnsetModified()          self.layer.UnsetModified()
287          self.layer.Subscribe(LAYER_SHAPESTORE_REPLACED,          self.layer.Subscribe(LAYER_SHAPESTORE_REPLACED,
# Line 264  class SetShapeStoreTests(unittest.TestCa Line 303  class SetShapeStoreTests(unittest.TestCa
303          """          """
304          cls = self.layer.GetClassification()          cls = self.layer.GetClassification()
305          self.assert_(cls is self.classification)          self.assert_(cls is self.classification)
306          self.assertEquals(cls.GetField(), "CLPTLABEL")          field = self.layer.GetClassificationColumn()
307          self.assertEquals(cls.GetFieldType(), FIELDTYPE_STRING)          self.assertEquals(field, "CLPTLABEL")
308            self.assertEquals(self.layer.GetFieldType(field), FIELDTYPE_STRING)
309          self.assertEquals(self.layer.GetClassification().GetNumGroups(), 1)          self.assertEquals(self.layer.GetClassification().GetNumGroups(), 1)
310          self.failIf(self.layer.WasModified())          self.failIf(self.layer.WasModified())
311    
# Line 308  class SetShapeStoreTests(unittest.TestCa Line 348  class SetShapeStoreTests(unittest.TestCa
348                               (self.layer, LAYER_SHAPESTORE_REPLACED)])                               (self.layer, LAYER_SHAPESTORE_REPLACED)])
349    
350    
351  class TestLayerLegend(unittest.TestCase, support.SubscriberMixin):  class TestLayerModification(unittest.TestCase, support.SubscriberMixin):
352    
353      """Test cases for Layer method that modify the layer.      """Test cases for Layer method that modify the layer.
354      """      """
# Line 320  class TestLayerLegend(unittest.TestCase, Line 360  class TestLayerLegend(unittest.TestCase,
360          """          """
361          self.clear_messages()          self.clear_messages()
362          self.session = Session("Test session for %s" % self.__class__)          self.session = Session("Test session for %s" % self.__class__)
363          filename = os.path.join("..", "Data", "iceland", "political.shp")          self.filename = os.path.join("..", "Data", "iceland", "political.shp")
364          self.layer = Layer("Test Layer",          self.layer = Layer("Test Layer",
365                             self.session.OpenShapefile(filename))                             self.session.OpenShapefile(self.filename))
366          self.layer.Subscribe(LAYER_LEGEND_CHANGED, self.subscribe_with_params,          self.layer.Subscribe(LAYER_LEGEND_CHANGED, self.subscribe_with_params,
367                               LAYER_LEGEND_CHANGED)                               LAYER_LEGEND_CHANGED)
368          self.layer.Subscribe(LAYER_VISIBILITY_CHANGED,          self.layer.Subscribe(LAYER_VISIBILITY_CHANGED,
369                               self.subscribe_with_params,                               self.subscribe_with_params,
370                               LAYER_VISIBILITY_CHANGED)                               LAYER_VISIBILITY_CHANGED)
371            self.layer.Subscribe(LAYER_CHANGED, self.subscribe_with_params,
372                                 LAYER_CHANGED)
373    
374      def tearDown(self):      def tearDown(self):
375          """Clear the list of received messages and explictly destroy self.layer          """Clear the list of received messages and explictly destroy self.layer
# Line 338  class TestLayerLegend(unittest.TestCase, Line 380  class TestLayerLegend(unittest.TestCase,
380          self.session = None          self.session = None
381          self.clear_messages()          self.clear_messages()
382    
383      def test_initial_settings(self):      def test_sanity(self):
384          """Test Layer's initial legend attributes"""          """TestLayerModification Sanity Checks"""
385          # test default settings          # test default settings
386          self.failIf(self.layer.WasModified())          self.failIf(self.layer.WasModified())
         #self.assertEquals(self.layer.fill, None)  
         #self.assertEquals(self.layer.stroke.hex(), "#000000")  
         #self.assertEquals(self.layer.stroke_width, 1)  
387          self.assertEquals(self.layer.Visible(), 1)          self.assertEquals(self.layer.Visible(), 1)
388          # no messages should have been produced          # no messages should have been produced
389          self.check_messages([])          self.check_messages([])
# Line 359  class TestLayerLegend(unittest.TestCase, Line 398  class TestLayerLegend(unittest.TestCase,
398          # the layer.          # the layer.
399          self.failIf(self.layer.WasModified())          self.failIf(self.layer.WasModified())
400    
401            def test_set_classification(self):
402  #          """Test Layer.SetClassification"""
403  # the tree info now contains Color objects which are difficult to test          classification = Classification()
404  #          classification.AppendGroup(ClassGroupRange((0.0, 0.1)))
405  #   def test_tree_info(self):  
406  #       """Test Layer.TreeInfo"""          self.layer.SetClassification(classification)
407  #       self.assertEquals(self.layer.TreeInfo(),          self.layer.SetClassificationColumn("AREA")
408  #                         ("Layer 'Test Layer'",  
409  #                          ['Shown',          self.check_messages([(self.layer, LAYER_CHANGED),
410  #                           'Shapes: 156',                               (self.layer, LAYER_CHANGED)])
411  #                           ('Extent (lat-lon):'          self.failUnless(self.layer.WasModified())
412  #                            ' (-24.5465, 63.2868, -13.4958, 66.5638)'),  
413  #                           'Shapetype: Polygon',          self.clear_messages()
414  #                           'Fill: None',          self.layer.UnsetModified()
415  #                           'Outline: (0.000, 0.000, 0.000)']))  
416            # change only the classification column. This should issue a
417            # LAYER_CHANGED message as well.
418            self.layer.SetClassificationColumn("PERIMETER")
419    
420            self.check_messages([(self.layer, LAYER_CHANGED)])
421            self.failUnless(self.layer.WasModified())
422    
423    
424        def test_tree_info(self):
425            """Test Layer.TreeInfo"""
426            self.assertEquals(self.layer.TreeInfo(),
427                              ("Layer 'Test Layer'",
428                               ['Filename: %s' % os.path.abspath(self.filename),
429                                'Shown',
430                                'Shapes: 156',
431                       'Extent (lat-lon): (-24.5465, 63.2868, -13.4958, 66.5638)',
432                                'Shapetype: Polygon',
433                                self.layer.GetClassification()]))
434    
435    
436  if __name__ == "__main__":  if __name__ == "__main__":
Legend:
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  Added in v.2351
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