/[thuban]/branches/WIP-pyshapelib-bramz/test/test_load.py

Diff of /branches/WIP-pyshapelib-bramz/test/test_load.py

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-revision 1846 by bh,
Tue Oct 21 10:49:53 2003 UTC
+revision 1931 by bh,
Tue Nov 11 13:24:45 2003 UTC
 Line 179 
 class TestSingleLayer(LoadSessionTest):
  <?xml version="1.0" encoding="UTF-8"?>
  <!DOCTYPE session SYSTEM "thuban-1.0.dtd">
  <session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd"
-         title="single map&amp;layer">
+         title="Stra\xc3\x9fen &amp; Landmarken">
      <fileshapesource filetype="shapefile" id="D1"
          filename="../../Data/iceland/political.shp"/>
-     <map title="Test Map">
+     <map title="\xc3\x9cbersicht">
          <projection epsg="32627" name="WGS 84 / UTM zone 27N">
              <parameter value="datum=WGS84"/>
              <parameter value="ellps=WGS84"/>
 Line 191 
 class TestSingleLayer(LoadSessionTest):
              <parameter value="zone=27"/>
          </projection>
          <layer shapestore="D1" visible="true"
-                 stroke="#000000" title="My Layer" stroke_width="1"
+                 stroke="#000000" title="K\xc3\xbcste" stroke_width="1"
                  fill="None"/>
      </map>
  </session>
 Line 204 
 class TestSingleLayer(LoadSessionTest):
          self.session = session
          # Check the title
-         eq(session.Title(), "single map&layer")
+         eq(session.Title(), "Stra\xdfen & Landmarken")
          # the session has one map.
          maps = session.Maps()
 Line 212 
 class TestSingleLayer(LoadSessionTest):
          # Check the map's attributes
          map = maps[0]
-         eq(map.Title(), "Test Map")
+         eq(map.Title(), "\xdcbersicht")
          proj = map.GetProjection()
          eq(proj.GetName(), "WGS 84 / UTM zone 27N")
          eq(proj.EPSGCode(), "32627")
 Line 227 
 class TestSingleLayer(LoadSessionTest):
          # Check the layer attributes
          layer = layers[0]
-         eq(layer.Title(), "My Layer")
+         eq(layer.Title(), "K\xfcste")
          self.failUnless(filenames_equal(layer.ShapeStore().FileName(),
                                          os.path.join(self.temp_dir(),
                                                       os.pardir, os.pardir,
 Line 242 
 class TestSingleLayer(LoadSessionTest):
          self.session.Destroy()
          self.session = None
+     def test_leak(self):
+         """Test load_session for resource leaks
+         The load_session function had a resource leak in that it created
+         cyclic references. The objects would have been eventually
+         collected by the garbage collector but too late. One symptom is
+         that when layers are removed so that the last normal reference
+         owned indirectly by the session to a shape store goes away, the
+         shape store is not actually removed from the session even though
+         the session only keeps weak references because there are still
+         references owned by the cyclic garbage.
+         """
+         session = load_session(self.filename())
+         self.session = session
+         # sanity check
+         self.assertEquals(len(session.ShapeStores()), 1)
+         # remove the map. The shapestore should go away too
+         session.RemoveMap(session.Maps()[0])
+         self.assertEquals(len(session.ShapeStores()), 0)
  class TestLayerVisibility(LoadSessionTest):

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