/[thuban]/branches/WIP-pyshapelib-bramz/test/test_transientdb.py
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revision 1041 by bh, Mon May 26 19:26:41 2003 UTC revision 1328 by bh, Tue Jul 1 12:01:58 2003 UTC
# Line 214  class TestTransientTable(unittest.TestCa Line 214  class TestTransientTable(unittest.TestCa
214                                                   auto.Title()))                                                   auto.Title()))
215    
216    
217        def test_transient_joined_table_same_column_name(self):
218            """Test TransientJoinedTable join on columns with same name
219    
220            The transient DB maps the column names used by the tables to
221            another set of names used only inside the SQLite database. There
222            was a bug in the way this mapping was used when joining on
223            fields with the same names in both tables so that the joined
224            table ended up joining on the same column in the same table.
225            """
226            mem_stretches = MemoryTable([("stretch_id", FIELDTYPE_INT)],
227                                        [(i,) for i in range(4)])
228            stretches = AutoTransientTable(self.transientdb, mem_stretches)
229    
230            mem_discharges = MemoryTable([("disch_id", FIELDTYPE_INT),
231                                          ("stretch_id", FIELDTYPE_INT)],
232                                         [(1, 0), (2, 3)])
233            discharges = AutoTransientTable(self.transientdb, mem_discharges)
234    
235            table = TransientJoinedTable(self.transientdb, stretches, "stretch_id",
236                                         discharges, "stretch_id",
237                                         outer_join = True)
238    
239            self.assertEquals(table.NumRows(), 4)
240            self.assertEquals(table.NumColumns(), 2)
241    
242            # HasColumn
243            self.failUnless(table.HasColumn("stretch_id"))
244            self.failUnless(table.HasColumn("disch_id"))
245    
246    
247      def test_transient_table_read_twice(self):      def test_transient_table_read_twice(self):
248          """Test TransientTable.ReadRowAsDict() reading the same record twice"""          """Test TransientTable.ReadRowAsDict() reading the same record twice"""
249          simple = MemoryTable([("type", FIELDTYPE_STRING),          simple = MemoryTable([("type", FIELDTYPE_STRING),

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