/[thuban]/branches/WIP-pyshapelib-bramz/test/test_layer.py
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revision 1262 by jonathan, Fri Jun 20 14:15:30 2003 UTC revision 1681 by bh, Thu Aug 28 14:37:36 2003 UTC
# 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 77  class TestLayer(unittest.TestCase, suppo Line 74  class TestLayer(unittest.TestCase, suppo
74          self.failUnless(layer.Visible())          self.failUnless(layer.Visible())
75    
76          self.failIf(layer.HasClassification())          self.failIf(layer.HasClassification())
77            self.failIf(layer.HasShapes())
78    
79          self.assertEquals(layer.GetProjection(), None)          self.assertEquals(layer.GetProjection(), None)
80    
81          # set/get projection          # set/get projection
# Line 94  class TestLayer(unittest.TestCase, suppo Line 93  class TestLayer(unittest.TestCase, suppo
93          """Test Layer with arc shapes"""          """Test Layer with arc shapes"""
94          layer = self.layer = Layer("Test Layer",          layer = self.layer = Layer("Test Layer",
95                                     self.open_shapefile("roads-line.shp"))                                     self.open_shapefile("roads-line.shp"))
96            self.failUnless(layer.HasClassification())
97            self.failUnless(layer.HasShapes())
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 111  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 128  class TestLayer(unittest.TestCase, suppo Line 130  class TestLayer(unittest.TestCase, suppo
130          """Test Layer with polygon shapes"""          """Test Layer with polygon shapes"""
131          layer = self.layer = Layer("Test Layer",          layer = self.layer = Layer("Test Layer",
132                                     self.open_shapefile("political.shp"))                                     self.open_shapefile("political.shp"))
133            self.failUnless(layer.HasClassification())
134            self.failUnless(layer.HasShapes())
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):
151          """Test Layer with point shapes"""          """Test Layer with point shapes"""
152          layer = self.layer = Layer("Test Layer",          layer = self.layer = Layer("Test Layer",
153                             self.open_shapefile("cultural_landmark-point.shp"))                             self.open_shapefile("cultural_landmark-point.shp"))
154            self.failUnless(layer.HasClassification())
155            self.failUnless(layer.HasShapes())
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_point_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_POINT, [[[(10,10)]]], table)
174            layer = self.layer = Layer("Test Layer", store)
175    
176            # Rotation by 45 degrees counter clockwise. This detects a bug
177            # in the ShapesInRegion method which transforms the bounding box
178            # by only transforming two opposite corners because they have
179            # the same x or y coordinates after application of the
180            # projection or its inverse.
181            proj = mockgeo.AffineProjection((1, 1, -1, 1, 0, 0))
182            layer.SetProjection(proj)
183    
184            self.assertEquals(layer.BoundingBox(), (10, 10, 10, 10))
185            self.assertEquals(layer.LatLongBoundingBox(), (10.0, 0.0, 10.0, 0.0))
186            shapes = layer.ShapesInRegion((0, 0, 20, 20))
187            self.assertEquals([s.ShapeID() for s in shapes], [0])
188    
189      def test_empty_layer(self):      def test_empty_layer(self):
190          """Test Layer with empty shape file"""          """Test Layer with empty shape file"""
191          # create an empty shape file          # create an empty shape file
# Line 185  class TestLayer(unittest.TestCase, suppo Line 214  class TestLayer(unittest.TestCase, suppo
214    
215      def test_raster_layer(self):      def test_raster_layer(self):
216          if not Thuban.Model.resource.has_gdal_support():          if not Thuban.Model.resource.has_gdal_support():
217              return              raise support.SkipTest("No gdal support")
218    
219          filename = self.build_path("island.tif")          filename = self.build_path("island.tif")
220          layer = RasterLayer("Test RasterLayer", filename)          layer = RasterLayer("Test RasterLayer", filename)
221          self.assertEquals(layer.GetImageFilename(), filename)          self.failIf(layer.HasClassification())
222            self.failIf(layer.HasShapes())
223            self.assertEquals(layer.GetImageFilename(), os.path.abspath(filename))
224          self.assertFloatSeqEqual(layer.BoundingBox(),          self.assertFloatSeqEqual(layer.BoundingBox(),
225                                   [-24.5500000, 63.2833330,                                   [-24.5500000, 63.2833330,
226                                    -13.4916670, 66.5666670])                                    -13.4916670, 66.5666670])
# Line 207  class TestLayer(unittest.TestCase, suppo Line 238  class TestLayer(unittest.TestCase, suppo
238              layer.SetShapeStore(derived)              layer.SetShapeStore(derived)
239              self.assert_(layer.ShapeStore() is derived)              self.assert_(layer.ShapeStore() is derived)
240    
241              # check that an exception is raised when the number              self.assertEquals(layer.ShapeType(), SHAPETYPE_ARC)
242              # of shapes differ from the number of rows in a table.              self.assertEquals(layer.NumShapes(), 839)
243              layer2 = Layer("Test Layer",              shape = layer.Shape(32)
244                             self.open_shapefile("political.shp"))              self.assertPointListEquals(shape.Points(),
245              store2 = layer2.ShapeStore()                                         [[(-15.082174301147, 66.277381896972),
246              self.assertRaises(ValueError,                                           (-15.026350021362, 66.273391723632)]])
247                                DerivedShapeStore, store2, store.Table())              self.assertFloatSeqEqual(layer.BoundingBox(),
248                                         [-24.450359344482422, 63.426830291748047,
249                                          -13.55668830871582, 66.520111083984375])
250                shapes = layer.ShapesInRegion((-24.0, 64.0, -23.75, 64.25))
251                self.assertEquals([s.ShapeID() for s in shapes],
252                                  [613, 726, 838])
253    
254                self.assertFloatSeqEqual(layer.ShapesBoundingBox([32]),
255                                         [-15.082174301147461, 66.27339172363281,
256                                          -15.026350021362305, 66.27738189697265])
257    
258          finally:          finally:
259              store = derived = None              store = derived = None
             layer2.Destroy()  
             store2 = None  
260    
261    
262  class SetShapeStoreTests(unittest.TestCase, support.SubscriberMixin):  class SetShapeStoreTests(unittest.TestCase, support.SubscriberMixin):
# Line 231  class SetShapeStoreTests(unittest.TestCa Line 269  class SetShapeStoreTests(unittest.TestCa
269                                            "cultural_landmark-point.dbf")                                            "cultural_landmark-point.dbf")
270          self.store = self.session.OpenShapefile(self.shapefilename)          self.store = self.session.OpenShapefile(self.shapefilename)
271          self.layer = Layer("test layer", self.store)          self.layer = Layer("test layer", self.store)
272          self.classification = Classification(field = "CLPTLABEL")          self.classification = Classification()
273          self.classification.AppendGroup(ClassGroupSingleton("FARM"))          self.classification.AppendGroup(ClassGroupSingleton("FARM"))
274            self.layer.SetClassificationColumn("CLPTLABEL")
275          self.layer.SetClassification(self.classification)          self.layer.SetClassification(self.classification)
276          self.layer.UnsetModified()          self.layer.UnsetModified()
277          self.layer.Subscribe(LAYER_SHAPESTORE_REPLACED,          self.layer.Subscribe(LAYER_SHAPESTORE_REPLACED,
# Line 254  class SetShapeStoreTests(unittest.TestCa Line 293  class SetShapeStoreTests(unittest.TestCa
293          """          """
294          cls = self.layer.GetClassification()          cls = self.layer.GetClassification()
295          self.assert_(cls is self.classification)          self.assert_(cls is self.classification)
296          self.assertEquals(cls.GetField(), "CLPTLABEL")          field = self.layer.GetClassificationColumn()
297          self.assertEquals(cls.GetFieldType(), FIELDTYPE_STRING)          self.assertEquals(field, "CLPTLABEL")
298            self.assertEquals(self.layer.GetFieldType(field), FIELDTYPE_STRING)
299          self.assertEquals(self.layer.GetClassification().GetNumGroups(), 1)          self.assertEquals(self.layer.GetClassification().GetNumGroups(), 1)
300          self.failIf(self.layer.WasModified())          self.failIf(self.layer.WasModified())
301    
# Line 298  class SetShapeStoreTests(unittest.TestCa Line 338  class SetShapeStoreTests(unittest.TestCa
338                               (self.layer, LAYER_SHAPESTORE_REPLACED)])                               (self.layer, LAYER_SHAPESTORE_REPLACED)])
339    
340    
341  class TestLayerLegend(unittest.TestCase, support.SubscriberMixin):  class TestLayerModification(unittest.TestCase, support.SubscriberMixin):
342    
343      """Test cases for Layer method that modify the layer.      """Test cases for Layer method that modify the layer.
344      """      """
# Line 318  class TestLayerLegend(unittest.TestCase, Line 358  class TestLayerLegend(unittest.TestCase,
358          self.layer.Subscribe(LAYER_VISIBILITY_CHANGED,          self.layer.Subscribe(LAYER_VISIBILITY_CHANGED,
359                               self.subscribe_with_params,                               self.subscribe_with_params,
360                               LAYER_VISIBILITY_CHANGED)                               LAYER_VISIBILITY_CHANGED)
361            self.layer.Subscribe(LAYER_CHANGED, self.subscribe_with_params,
362                                 LAYER_CHANGED)
363    
364      def tearDown(self):      def tearDown(self):
365          """Clear the list of received messages and explictly destroy self.layer          """Clear the list of received messages and explictly destroy self.layer
# Line 328  class TestLayerLegend(unittest.TestCase, Line 370  class TestLayerLegend(unittest.TestCase,
370          self.session = None          self.session = None
371          self.clear_messages()          self.clear_messages()
372    
373      def test_initial_settings(self):      def test_sanity(self):
374          """Test Layer's initial legend attributes"""          """TestLayerModification Sanity Checks"""
375          # test default settings          # test default settings
376          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)  
377          self.assertEquals(self.layer.Visible(), 1)          self.assertEquals(self.layer.Visible(), 1)
378          # no messages should have been produced          # no messages should have been produced
379          self.check_messages([])          self.check_messages([])
# Line 349  class TestLayerLegend(unittest.TestCase, Line 388  class TestLayerLegend(unittest.TestCase,
388          # the layer.          # the layer.
389          self.failIf(self.layer.WasModified())          self.failIf(self.layer.WasModified())
390    
391            def test_set_classification(self):
392            """Test Layer.SetClassification"""
393            classification = Classification()
394            classification.AppendGroup(ClassGroupRange((0.0, 0.1)))
395    
396            self.layer.SetClassification(classification)
397            self.layer.SetClassificationColumn("AREA")
398    
399            self.check_messages([(self.layer, LAYER_CHANGED),
400                                 (self.layer, LAYER_CHANGED)])
401            self.failUnless(self.layer.WasModified())
402    
403            self.clear_messages()
404            self.layer.UnsetModified()
405    
406            # change only the classification column. This should issue a
407            # LAYER_CHANGED message as well.
408            self.layer.SetClassificationColumn("PERIMETER")
409    
410            self.check_messages([(self.layer, LAYER_CHANGED)])
411            self.failUnless(self.layer.WasModified())
412    
413    
414  #  #
415  # the tree info now contains Color objects which are difficult to test  # the tree info now contains Color objects which are difficult to test
416  #  #
Legend:
Removed from v.1262  
changed lines
  Added in v.1681
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