--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/contrib/gis/geos/tests/test_io.py	Wed Jan 20 00:34:04 2010 +0100
@@ -0,0 +1,112 @@
+import binascii, ctypes, unittest
+from django.contrib.gis.geos import GEOSGeometry, WKTReader, WKTWriter, WKBReader, WKBWriter, geos_version_info
+
+class GEOSIOTest(unittest.TestCase):
+
+    def test01_wktreader(self):
+        # Creating a WKTReader instance
+        wkt_r = WKTReader()
+        wkt = 'POINT (5 23)'
+
+        # read() should return a GEOSGeometry
+        ref = GEOSGeometry(wkt)
+        g1 = wkt_r.read(wkt)
+        g2 = wkt_r.read(unicode(wkt))
+
+        for geom in (g1, g2):
+            self.assertEqual(ref, geom)
+
+        # Should only accept basestring objects.
+        self.assertRaises(TypeError, wkt_r.read, 1)
+        self.assertRaises(TypeError, wkt_r.read, buffer('foo'))
+
+    def test02_wktwriter(self):
+        # Creating a WKTWriter instance, testing its ptr property.
+        wkt_w = WKTWriter()
+        self.assertRaises(TypeError, wkt_w._set_ptr, WKTReader.ptr_type())
+
+        ref = GEOSGeometry('POINT (5 23)')
+        ref_wkt = 'POINT (5.0000000000000000 23.0000000000000000)'
+        self.assertEqual(ref_wkt, wkt_w.write(ref))
+
+    def test03_wkbreader(self):
+        # Creating a WKBReader instance
+        wkb_r = WKBReader()
+
+        hex = '000000000140140000000000004037000000000000'
+        wkb = buffer(binascii.a2b_hex(hex))
+        ref = GEOSGeometry(hex)
+
+        # read() should return a GEOSGeometry on either a hex string or
+        # a WKB buffer.
+        g1 = wkb_r.read(wkb)
+        g2 = wkb_r.read(hex)
+        for geom in (g1, g2):
+            self.assertEqual(ref, geom)
+
+        bad_input = (1, 5.23, None, False)
+        for bad_wkb in bad_input:
+            self.assertRaises(TypeError, wkb_r.read, bad_wkb)
+        
+    def test04_wkbwriter(self):
+        wkb_w = WKBWriter()
+
+        # Representations of 'POINT (5 23)' in hex -- one normal and
+        # the other with the byte order changed.
+        g = GEOSGeometry('POINT (5 23)')
+        hex1 = '010100000000000000000014400000000000003740'
+        wkb1 = buffer(binascii.a2b_hex(hex1))
+        hex2 = '000000000140140000000000004037000000000000'
+        wkb2 = buffer(binascii.a2b_hex(hex2))
+
+        self.assertEqual(hex1, wkb_w.write_hex(g))
+        self.assertEqual(wkb1, wkb_w.write(g))
+
+        # Ensuring bad byteorders are not accepted.
+        for bad_byteorder in (-1, 2, 523, 'foo', None):
+            # Equivalent of `wkb_w.byteorder = bad_byteorder`
+            self.assertRaises(ValueError, wkb_w._set_byteorder, bad_byteorder)
+            
+        # Setting the byteorder to 0 (for Big Endian)
+        wkb_w.byteorder = 0
+        self.assertEqual(hex2, wkb_w.write_hex(g))
+        self.assertEqual(wkb2, wkb_w.write(g))
+
+        # Back to Little Endian
+        wkb_w.byteorder = 1
+
+        # Now, trying out the 3D and SRID flags.
+        g = GEOSGeometry('POINT (5 23 17)')
+        g.srid = 4326
+        
+        hex3d = '0101000080000000000000144000000000000037400000000000003140'
+        wkb3d = buffer(binascii.a2b_hex(hex3d))
+        hex3d_srid = '01010000A0E6100000000000000000144000000000000037400000000000003140'
+        wkb3d_srid = buffer(binascii.a2b_hex(hex3d_srid))
+
+        # Ensuring bad output dimensions are not accepted
+        for bad_outdim in (-1, 0, 1, 4, 423, 'foo', None):
+            # Equivalent of `wkb_w.outdim = bad_outdim`
+            self.assertRaises(ValueError, wkb_w._set_outdim, bad_outdim)
+
+        # These tests will fail on 3.0.0 because of a bug that was fixed in 3.1:
+        # http://trac.osgeo.org/geos/ticket/216
+        if not geos_version_info()['version'].startswith('3.0.'):
+            # Now setting the output dimensions to be 3
+            wkb_w.outdim = 3
+
+            self.assertEqual(hex3d, wkb_w.write_hex(g))
+            self.assertEqual(wkb3d, wkb_w.write(g))
+
+            # Telling the WKBWriter to inlcude the srid in the representation.
+            wkb_w.srid = True
+            self.assertEqual(hex3d_srid, wkb_w.write_hex(g))
+            self.assertEqual(wkb3d_srid, wkb_w.write(g))
+
+def suite():
+    s = unittest.TestSuite()
+    s.addTest(unittest.makeSuite(GEOSIOTest))
+    return s
+
+def run(verbosity=2):
+    unittest.TextTestRunner(verbosity=verbosity).run(suite())