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revision 765 by bh, Tue Apr 29 12:42:14 2003 UTC revision 842 by bh, Tue May 6 17:13:00 2003 UTC
# Line 19  import unittest Line 19  import unittest
19  import support  import support
20  support.initthuban()  support.initthuban()
21    
22  from Thuban.Model.table import DBFTable, FIELDTYPE_STRING, FIELDTYPE_INT  from Thuban.Model.table import DBFTable, MemoryTable, FIELDTYPE_STRING, \
23                                   FIELDTYPE_INT, FIELDTYPE_DOUBLE
24  from Thuban.Model.transientdb import TransientDatabase, TransientTable, \  from Thuban.Model.transientdb import TransientDatabase, TransientTable, \
25       TransientJoinedTable, AutoTransientTable       TransientJoinedTable, AutoTransientTable
26    
27    
 class SimpleTable:  
   
     """Very simple table implementation that operates on a list of tuples"""  
   
     def __init__(self, fields, data):  
         """Initialize the SimpleTable  
   
         Parameters:  
         fields -- List of (name, field_type) pairs  
         data -- List of tuples, one for each row of data  
         """  
         self.fields = fields  
         self.data = data  
   
     def field_count(self):  
         return len(self.fields)  
   
     def field_info(self, index):  
         name, type = self.fields[index]  
         return (type, name, 0, 0)  
   
     def record_count(self):  
         return len(self.data)  
   
     def read_record(self, index):  
         return dict([(self.fields[i][0], self.data[index][i])  
                       for i in range(len(self.fields))])  
   
   
28  class TestTransientTable(unittest.TestCase, support.FileTestMixin):  class TestTransientTable(unittest.TestCase, support.FileTestMixin):
29    
30      def setUp(self):      def setUp(self):
# Line 75  class TestTransientTable(unittest.TestCa Line 47  class TestTransientTable(unittest.TestCa
47          Assume that table holds the data of the file          Assume that table holds the data of the file
48          ../Data/iceland/political.dbf sample file.          ../Data/iceland/political.dbf sample file.
49          """          """
50          self.assertEquals(table.record_count(), 156)          self.assertEquals(table.NumRows(), 156)
51          self.assertEquals(table.field_count(), 8)          self.assertEquals(table.NumColumns(), 8)
52    
53          # Check one each of the possible field types. The width and          # Check one each of the possible field types. The width and
54          # decimal precision is always 0.          # decimal precision is always 0.
55          self.assertEquals(table.field_info(0), ('double', 'AREA', 0, 0))          columns = table.Columns()
56          self.assertEquals(table.field_info(3), ('int', 'PONET_ID', 0, 0))          self.assertEquals(columns[0].name, 'AREA')
57          self.assertEquals(table.field_info(6), ('string', 'POPYCOUN', 0, 0))          self.assertEquals(columns[0].type, FIELDTYPE_DOUBLE)
58            self.assertEquals(columns[3].name, 'PONET_ID')
59            self.assertEquals(columns[3].type, FIELDTYPE_INT)
60            self.assertEquals(columns[6].name, 'POPYCOUN')
61            self.assertEquals(columns[6].type, FIELDTYPE_STRING)
62    
63            # HasColumn
64            self.failUnless(table.HasColumn("AREA"))
65            self.failUnless(table.HasColumn(1))
66            # HasColumn for non-exisiting columns
67            self.failIf(table.HasColumn("non_existing_name"))
68            self.failIf(table.HasColumn(100))
69    
70          # Read an `interesting' record          # Read an `interesting' record
71          self.assertEquals(table.read_record(144),          self.assertEquals(table.ReadRowAsDict(144),
72                            {'POPYCOUN': 'IC', 'POPYADMIN': '', 'PONET_': 146,                            {'POPYCOUN': 'IC', 'POPYADMIN': '', 'PONET_': 146,
73                             'AREA': 19.462,                             'AREA': 19.462,
74                             'POPYTYPE': 1, 'PERIMETER': 88.518000000000001,                             'POPYTYPE': 1, 'PERIMETER': 88.518000000000001,
75                             'POPYREG': '1',                             'POPYREG': '1',
76                             'PONET_ID': 145})                             'PONET_ID': 145})
77    
78          # field_range may induce a copy to the transient database.          # ValueRange may induce a copy to the transient database.
79          # Therefore we put it last so that we can execute this method          # Therefore we put it last so that we can execute this method
80          # twice to check whether the other methods still work after the          # twice to check whether the other methods still work after the
81          # copy          # copy
82          self.assertEquals(table.field_range("AREA"),          self.assertEquals(table.ValueRange("AREA"), (0.0, 19.462))
                           ((0.0, None), (19.462, None)))  
83    
84          unique = table.GetUniqueValues("PONET_ID")          unique = table.UniqueValues("PONET_ID")
85          unique.sort()          unique.sort()
86          self.assertEquals(unique, range(1, 157))          self.assertEquals(unique, range(1, 157))
87    
# Line 139  class TestTransientTable(unittest.TestCa Line 121  class TestTransientTable(unittest.TestCa
121    
122      def test_transient_joined_table(self):      def test_transient_joined_table(self):
123          """Test TransientJoinedTable"""          """Test TransientJoinedTable"""
124          simple = SimpleTable([("type", FIELDTYPE_STRING),          simple = MemoryTable([("type", FIELDTYPE_STRING),
125                                ("code", FIELDTYPE_INT)],                                ("code", FIELDTYPE_INT)],
126                               [("OTHER/UNKNOWN", 0),                               [("OTHER/UNKNOWN", 0),
127                                ("RUINS", 1),                                ("RUINS", 1),
# Line 155  class TestTransientTable(unittest.TestCa Line 137  class TestTransientTable(unittest.TestCa
137          table = TransientJoinedTable(self.transientdb, landmarks, "CLPTLABEL",          table = TransientJoinedTable(self.transientdb, landmarks, "CLPTLABEL",
138                                       auto, "type")                                       auto, "type")
139    
140          self.assertEquals(table.record_count(), 34)          self.assertEquals(table.NumRows(), 34)
141          self.assertEquals(table.field_count(), 8)          self.assertEquals(table.NumColumns(), 8)
142          self.assertEquals(table.field_info(0), ('double', 'AREA', 0, 0))          self.assertEquals(table.Column(0).type, FIELDTYPE_DOUBLE)
143          self.assertEquals(table.field_info(7), ('int', 'code', 0, 0))          self.assertEquals(table.Column(0).name, 'AREA')
144          self.assertEquals(table.field_info(4), ('string', 'CLPTLABEL', 0, 0))          self.assertEquals(table.Column(7).type, FIELDTYPE_INT)
145            self.assertEquals(table.Column(7).name, 'code')
146            self.assertEquals(table.Column(4).type, FIELDTYPE_STRING)
147            self.assertEquals(table.Column(4).name, 'CLPTLABEL')
148            # HasColumn
149            self.failUnless(table.HasColumn("AREA"))
150            self.failUnless(table.HasColumn(1))
151            # HasColumn for non-exisiting columns
152            self.failIf(table.HasColumn("non_existing_name"))
153            self.failIf(table.HasColumn(100))
154    
155          # Read an `interesting' record          # Read an `interesting' record
156          self.assertEquals(table.read_record(22),          self.assertEquals(table.ReadRowAsDict(22),
157                            {'PERIMETER': 0.0, 'CLPOINT_': 23,                            {'PERIMETER': 0.0, 'CLPOINT_': 23,
158                             'AREA': 0.0, 'CLPTLABEL': 'RUINS',                             'AREA': 0.0, 'CLPTLABEL': 'RUINS',
159                             'CLPOINT_ID': 38, 'CLPTFLAG': 0,                             'CLPOINT_ID': 38, 'CLPTFLAG': 0,
# Line 172  class TestTransientTable(unittest.TestCa Line 163  class TestTransientTable(unittest.TestCa
163          self.assert_(table is table.transient_table())          self.assert_(table is table.transient_table())
164    
165    
166        def test_transient_table_read_twice(self):
167            """Test TransientTable.ReadRowAsDict() reading the same record twice"""
168            simple = MemoryTable([("type", FIELDTYPE_STRING),
169                                  ("code", FIELDTYPE_INT)],
170                                 [("OTHER/UNKNOWN", 0),
171                                  ("RUINS", 1),
172                                  ("FARM", 2),
173                                  ("BUILDING", 3),
174                                  ("HUT", 4),
175                                  ("LIGHTHOUSE", 5)])
176            table = TransientTable(self.transientdb, simple)
177    
178            # There was a bug where reading the same record twice would
179            # raise an exception in the second call because of an
180            # unitialized local variable, so for passing the test it's
181            # enough if reading simply succeeds. OTOH, while we're at it we
182            # might as well check whether the results are equal anyway :)
183            result1 = table.ReadRowAsDict(3)
184            result2 = table.ReadRowAsDict(3)
185            self.assertEquals(result1, result2)
186    
187    
188        def test_transient_table_query(self):
189            """Test TransientTable.SimpleQuery()"""
190            simple = MemoryTable([("type", FIELDTYPE_STRING),
191                                  ("value", FIELDTYPE_DOUBLE),
192                                  ("code", FIELDTYPE_INT)],
193                                 [("OTHER/UNKNOWN", -1.5, 11),
194                                  ("RUINS", 0.0, 1),
195                                  ("FARM", 3.141, 2),
196                                  ("BUILDING", 2.5, 3),
197                                  ("HUT", 1e6, 4),
198                                  ("LIGHTHOUSE", -0.01, 5)])
199            table = TransientTable(self.transientdb, simple)
200    
201            # A column and a value
202            self.assertEquals(table.SimpleQuery(table.Column(0), "==", "RUINS"),
203                              [1])
204            self.assertEquals(table.SimpleQuery(table.Column(2), "!=", 2),
205                              [0, 1, 3, 4, 5])
206            self.assertEquals(table.SimpleQuery(table.Column(1), "<", 1.0),
207                              [0, 1, 5])
208            self.assertEquals(table.SimpleQuery(table.Column(1), "<=", -1.5),
209                              [0])
210            self.assertEquals(table.SimpleQuery(table.Column(2), ">", 3),
211                              [0, 4, 5])
212            self.assertEquals(table.SimpleQuery(table.Column(2), ">=", 3),
213                              [0, 3, 4, 5])
214    
215            # Two columns as operands
216            self.assertEquals(table.SimpleQuery(table.Column(1),
217                                                "<=", table.Column(2)),
218                              [0, 1, 3, 5])
219    
220            # Test whether invalid operators raise a ValueError
221            self.assertRaises(ValueError,
222                              table.SimpleQuery,
223                              table.Column(1), "<<", table.Column(2))
224    
225    
226  if __name__ == "__main__":  if __name__ == "__main__":
227      support.run_tests()      support.run_tests()
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