/[thuban]/branches/WIP-pyshapelib-bramz/test/test_transientdb.py
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revision 1328 by bh, Tue Jul 1 12:01:58 2003 UTC revision 1332 by frank, Tue Jul 1 15:40:52 2003 UTC
# Line 244  class TestTransientTable(unittest.TestCa Line 244  class TestTransientTable(unittest.TestCa
244          self.failUnless(table.HasColumn("disch_id"))          self.failUnless(table.HasColumn("disch_id"))
245    
246    
247        def test_transient_joined_table_with_equal_column_names(self):
248            """Test TransientJoinedTable join on tables with equal column names
249    
250            The join of two tables contains all fields from both tables instead
251            th field the join was performed on. This special field is included
252            once. If a name collision occurs for the field names, underscores are
253            appended as long as any collision is resolved.      
254            """
255            mem_stretches = MemoryTable([("stretch_id", FIELDTYPE_INT),
256                                         ("name", FIELDTYPE_INT)],
257                                        [(0, 10), (1, 11), (2, 12), (3, 13) ])
258            stretches = AutoTransientTable(self.transientdb, mem_stretches)
259    
260            mem_discharges = MemoryTable([("disch_id", FIELDTYPE_INT),
261                                          ("stretch_id", FIELDTYPE_INT),
262                                          ("name", FIELDTYPE_INT)],
263                                         [(1, 0, 1), (2, 3, 2)])
264            discharges = AutoTransientTable(self.transientdb, mem_discharges)
265    
266            table = TransientJoinedTable(self.transientdb, stretches, "stretch_id",
267                                         discharges, "stretch_id",
268                                         outer_join = True)
269    
270            self.assertEquals(table.NumRows(), 4)
271            self.assertEquals(table.NumColumns(), 4)
272    
273            # HasColumn
274            self.failUnless(table.HasColumn("stretch_id"))
275            self.failUnless(table.HasColumn("disch_id"))
276            self.failUnless(table.HasColumn("name"))
277            self.failUnless(table.HasColumn("name_"))
278    
279    
280      def test_transient_table_read_twice(self):      def test_transient_table_read_twice(self):
281          """Test TransientTable.ReadRowAsDict() reading the same record twice"""          """Test TransientTable.ReadRowAsDict() reading the same record twice"""
282          simple = MemoryTable([("type", FIELDTYPE_STRING),          simple = MemoryTable([("type", FIELDTYPE_STRING),
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