add test comparing geometry handling between ogr and shape plugin - currently fails

tests/python_tests/ogr_and_shape_geometries_test.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python
+
+from nose.tools import *
+
+from utilities import execution_path, Todo
+
+import os, sys, glob, mapnik
+
+def setup():
+    # All of the paths used are relative, if we run the tests
+    # from another directory we need to chdir()
+    os.chdir(execution_path('.'))
+
+# TODO - fix truncation in shapefile...
+polys = ["POLYGON ((30 10, 10 20, 20 40, 40 40, 30 10))",
+         "POLYGON ((35 10, 10 20, 15 40, 45 45, 35 10),(20 30, 35 35, 30 20, 20 30))",
+         "MULTIPOLYGON (((30 20, 10 40, 45 40, 30 20)),((15 5, 40 10, 10 20, 5 10, 15 5)))"
+         "MULTIPOLYGON (((40 40, 20 45, 45 30, 40 40)),((20 35, 45 20, 30 5, 10 10, 10 30, 20 35),(30 20, 20 25, 20 15, 30 20)))"
+        ]
+
+plugins = mapnik.DatasourceCache.instance().plugin_names()
+if 'shape' in plugins and 'ogr' in plugins:
+
+    def test_geometries_are_interpreted_equivalently():
+        shapefile = '../data/shp/wkt_poly.shp'
+        ds1 = mapnik.Ogr(file=shapefile,layer_by_index=0)
+        ds2 = mapnik.Shapefile(file=shapefile)
+        fs1 = ds1.featureset()
+        fs2 = ds2.featureset()
+        count = 0;
+        while(True):
+            count += 1
+            feat1 = fs1.next()
+            feat2 = fs2.next()
+            if not feat1:
+                break
+            #import pdb;pdb.set_trace()
+            #print feat1
+            eq_(str(feat1),str(feat2))
+            eq_(feat1.geometries().to_wkt(),feat2.geometries().to_wkt())
+
+if __name__ == "__main__":
+    setup()
+    [eval(run)() for run in dir() if 'test_' in run]