WIP-pyshapelib-bramz/test/test_transientdb.py

# Copyright (c) 2002, 2003 by Intevation GmbH
# Authors:
# Bernhard Herzog <[email protected]>
#
# This program is free software under the GPL (>=v2)
# Read the file COPYING coming with Thuban for details.

"""
Test the Transient DB classes
"""

__version__ = "$Revision$"
# $Source$
# $Id$

import os
import unittest

import support
support.initthuban()

from Thuban.Model.table import DBFTable, MemoryTable, FIELDTYPE_STRING, \
                               FIELDTYPE_INT
from Thuban.Model.transientdb import TransientDatabase, TransientTable, \
     TransientJoinedTable, AutoTransientTable


class TestTransientTable(unittest.TestCase, support.FileTestMixin):

    def setUp(self):
        """Create a transient database as self.transientdb"""
        filename = self.temp_file_name("transient_table.sqlite")
        if os.path.exists(filename):
            os.remove(filename)
        journal = filename + "-journal"
        if os.path.exists(journal):
            print "removing journal", journal
            os.remove(journal)
        self.transientdb = TransientDatabase(filename)

    def tearDown(self):
        self.transientdb.close()

    def run_iceland_political_tests(self, table):
        """Run some tests on tablte

        Assume that table holds the data of the file
        ../Data/iceland/political.dbf sample file.
        """
        self.assertEquals(table.NumRows(), 156)
        self.assertEquals(table.NumColumns(), 8)

        # Check one each of the possible field types. The width and
        # decimal precision is always 0.
        columns = table.Columns()
        self.assertEquals(columns[0].name, 'AREA')
        self.assertEquals(columns[0].type, 'double')
        self.assertEquals(columns[3].name, 'PONET_ID')
        self.assertEquals(columns[3].type, 'int')
        self.assertEquals(columns[6].name, 'POPYCOUN')
        self.assertEquals(columns[6].type, 'string')

        # Read an `interesting' record
        self.assertEquals(table.ReadRowAsDict(144),
                          {'POPYCOUN': 'IC', 'POPYADMIN': '', 'PONET_': 146,
                           'AREA': 19.462,
                           'POPYTYPE': 1, 'PERIMETER': 88.518000000000001,
                           'POPYREG': '1',
                           'PONET_ID': 145})

        # field_range may induce a copy to the transient database.
        # Therefore we put it last so that we can execute this method
        # twice to check whether the other methods still work after the
        # copy
        self.assertEquals(table.ValueRange("AREA"), (0.0, 19.462))

        unique = table.UniqueValues("PONET_ID")
        unique.sort()
        self.assertEquals(unique, range(1, 157))

    def test_transient_table(self):
        """Test TransientTable(dbftable)

        The TransientTable should copy the data to the
        TransientDatabase.
        """
        orig_table = DBFTable(os.path.join("..", "Data", "iceland",
                                           "political.dbf"))
        table = TransientTable(self.transientdb, orig_table)
        self.run_iceland_political_tests(table)

        # The transient_table method should return the table itself
        self.assert_(table is table.transient_table())


    def test_auto_transient_table(self):
        """Test AutoTransientTable(dbftable)

        The AutoTransientTable should copy the data to the
        TransientDatabase on demand.
        """
        orig_table = DBFTable(os.path.join("..", "Data", "iceland",
                                           "political.dbf"))
        table = AutoTransientTable(self.transientdb, orig_table)

        # Run the tests twice so that we execute them once when the data
        # has not been copied to the transient db yet and once when it
        # has. This assumes that run_iceland_political_tests does at
        # least one call to a method that copies to the transient db at
        # its end.
        self.run_iceland_political_tests(table)
        self.run_iceland_political_tests(table)


    def test_transient_joined_table(self):
        """Test TransientJoinedTable"""
        simple = MemoryTable([("type", FIELDTYPE_STRING),
                              ("code", FIELDTYPE_INT)],
                             [("OTHER/UNKNOWN", 0),
                              ("RUINS", 1),
                              ("FARM", 2),
                              ("BUILDING", 3),
                              ("HUT", 4),
                              ("LIGHTHOUSE", 5)])
        auto = AutoTransientTable(self.transientdb, simple)
        filename = os.path.join("..", "Data", "iceland",
                                "cultural_landmark-point.dbf")
        landmarks = AutoTransientTable(self.transientdb, DBFTable(filename))

        table = TransientJoinedTable(self.transientdb, landmarks, "CLPTLABEL",
                                     auto, "type")

        self.assertEquals(table.NumRows(), 34)
        self.assertEquals(table.NumColumns(), 8)
        self.assertEquals(table.field_info(0), ('double', 'AREA', 0, 0))
        self.assertEquals(table.field_info(7), ('int', 'code', 0, 0))
        self.assertEquals(table.field_info(4), ('string', 'CLPTLABEL', 0, 0))

        # Read an `interesting' record
        self.assertEquals(table.read_record(22),
                          {'PERIMETER': 0.0, 'CLPOINT_': 23,
                           'AREA': 0.0, 'CLPTLABEL': 'RUINS',
                           'CLPOINT_ID': 38, 'CLPTFLAG': 0,
                           'code': 1, 'type': 'RUINS'})

        # The transient_table method should return the table itself
        self.assert_(table is table.transient_table())


    def test_transient_table_read_twice(self):
        """Test TransientTable.read_record() reading the same record twice"""
        simple = MemoryTable([("type", FIELDTYPE_STRING),
                              ("code", FIELDTYPE_INT)],
                             [("OTHER/UNKNOWN", 0),
                              ("RUINS", 1),
                              ("FARM", 2),
                              ("BUILDING", 3),
                              ("HUT", 4),
                              ("LIGHTHOUSE", 5)])
        table = TransientTable(self.transientdb, simple)

        # There was a bug where reading the same record twice would
        # raise an exception in the second call because of an
        # unitialized local variable, so for passing the test it's
        # enough if reading simply succeeds. OTOH, while we're at it we
        # might as well check whether the results are equal anyway :)
        result1 = table.read_record(3)
        result2 = table.read_record(3)
        self.assertEquals(result1, result2)


if __name__ == "__main__":
    support.run_tests()
1	bh	765	# Copyright (c) 2002, 2003 by Intevation GmbH
2			# Authors:
3			# Bernhard Herzog <[email protected]>
4			#
5			# This program is free software under the GPL (>=v2)
6			# Read the file COPYING coming with Thuban for details.
7
8			"""
9			Test the Transient DB classes
10			"""
11
12			__version__ = "$Revision$"
13			# $Source$
14			# $Id$
15
16			import os
17			import unittest
18
19			import support
20			support.initthuban()
21
22	jan	805	from Thuban.Model.table import DBFTable, MemoryTable, FIELDTYPE_STRING, \
23			FIELDTYPE_INT
24	bh	765	from Thuban.Model.transientdb import TransientDatabase, TransientTable, \
25			TransientJoinedTable, AutoTransientTable
26
27
28			class TestTransientTable(unittest.TestCase, support.FileTestMixin):
29
30			def setUp(self):
31			"""Create a transient database as self.transientdb"""
32			filename = self.temp_file_name("transient_table.sqlite")
33			if os.path.exists(filename):
34			os.remove(filename)
35			journal = filename + "-journal"
36			if os.path.exists(journal):
37			print "removing journal", journal
38			os.remove(journal)
39			self.transientdb = TransientDatabase(filename)
40
41			def tearDown(self):
42			self.transientdb.close()
43
44			def run_iceland_political_tests(self, table):
45			"""Run some tests on tablte
46
47			Assume that table holds the data of the file
48			../Data/iceland/political.dbf sample file.
49			"""
50	bh	818	self.assertEquals(table.NumRows(), 156)
51			self.assertEquals(table.NumColumns(), 8)
52	bh	765
53			# Check one each of the possible field types. The width and
54			# decimal precision is always 0.
55	bh	818	columns = table.Columns()
56			self.assertEquals(columns[0].name, 'AREA')
57			self.assertEquals(columns[0].type, 'double')
58			self.assertEquals(columns[3].name, 'PONET_ID')
59			self.assertEquals(columns[3].type, 'int')
60			self.assertEquals(columns[6].name, 'POPYCOUN')
61			self.assertEquals(columns[6].type, 'string')
62	bh	765
63			# Read an `interesting' record
64	bh	818	self.assertEquals(table.ReadRowAsDict(144),
65	bh	765	{'POPYCOUN': 'IC', 'POPYADMIN': '', 'PONET_': 146,
66			'AREA': 19.462,
67			'POPYTYPE': 1, 'PERIMETER': 88.518000000000001,
68			'POPYREG': '1',
69			'PONET_ID': 145})
70
71			# field_range may induce a copy to the transient database.
72			# Therefore we put it last so that we can execute this method
73			# twice to check whether the other methods still work after the
74			# copy
75	bh	818	self.assertEquals(table.ValueRange("AREA"), (0.0, 19.462))
76	bh	765
77	bh	818	unique = table.UniqueValues("PONET_ID")
78	bh	765	unique.sort()
79			self.assertEquals(unique, range(1, 157))
80
81			def test_transient_table(self):
82			"""Test TransientTable(dbftable)
83
84			The TransientTable should copy the data to the
85			TransientDatabase.
86			"""
87			orig_table = DBFTable(os.path.join("..", "Data", "iceland",
88			"political.dbf"))
89			table = TransientTable(self.transientdb, orig_table)
90			self.run_iceland_political_tests(table)
91
92			# The transient_table method should return the table itself
93			self.assert_(table is table.transient_table())
94
95
96			def test_auto_transient_table(self):
97			"""Test AutoTransientTable(dbftable)
98
99			The AutoTransientTable should copy the data to the
100			TransientDatabase on demand.
101			"""
102			orig_table = DBFTable(os.path.join("..", "Data", "iceland",
103			"political.dbf"))
104			table = AutoTransientTable(self.transientdb, orig_table)
105
106			# Run the tests twice so that we execute them once when the data
107			# has not been copied to the transient db yet and once when it
108			# has. This assumes that run_iceland_political_tests does at
109			# least one call to a method that copies to the transient db at
110			# its end.
111			self.run_iceland_political_tests(table)
112			self.run_iceland_political_tests(table)
113
114
115			def test_transient_joined_table(self):
116			"""Test TransientJoinedTable"""
117	jan	805	simple = MemoryTable([("type", FIELDTYPE_STRING),
118	bh	765	("code", FIELDTYPE_INT)],
119			[("OTHER/UNKNOWN", 0),
120			("RUINS", 1),
121			("FARM", 2),
122			("BUILDING", 3),
123			("HUT", 4),
124			("LIGHTHOUSE", 5)])
125			auto = AutoTransientTable(self.transientdb, simple)
126			filename = os.path.join("..", "Data", "iceland",
127			"cultural_landmark-point.dbf")
128			landmarks = AutoTransientTable(self.transientdb, DBFTable(filename))
129
130			table = TransientJoinedTable(self.transientdb, landmarks, "CLPTLABEL",
131			auto, "type")
132
133	bh	818	self.assertEquals(table.NumRows(), 34)
134			self.assertEquals(table.NumColumns(), 8)
135	bh	765	self.assertEquals(table.field_info(0), ('double', 'AREA', 0, 0))
136			self.assertEquals(table.field_info(7), ('int', 'code', 0, 0))
137			self.assertEquals(table.field_info(4), ('string', 'CLPTLABEL', 0, 0))
138
139			# Read an `interesting' record
140			self.assertEquals(table.read_record(22),
141			{'PERIMETER': 0.0, 'CLPOINT_': 23,
142			'AREA': 0.0, 'CLPTLABEL': 'RUINS',
143			'CLPOINT_ID': 38, 'CLPTFLAG': 0,
144			'code': 1, 'type': 'RUINS'})
145
146			# The transient_table method should return the table itself
147			self.assert_(table is table.transient_table())
148
149
150	bh	785	def test_transient_table_read_twice(self):
151			"""Test TransientTable.read_record() reading the same record twice"""
152	jan	805	simple = MemoryTable([("type", FIELDTYPE_STRING),
153	bh	785	("code", FIELDTYPE_INT)],
154			[("OTHER/UNKNOWN", 0),
155			("RUINS", 1),
156			("FARM", 2),
157			("BUILDING", 3),
158			("HUT", 4),
159			("LIGHTHOUSE", 5)])
160			table = TransientTable(self.transientdb, simple)
161	bh	765
162	bh	785	# There was a bug where reading the same record twice would
163			# raise an exception in the second call because of an
164			# unitialized local variable, so for passing the test it's
165			# enough if reading simply succeeds. OTOH, while we're at it we
166			# might as well check whether the results are equal anyway :)
167			result1 = table.read_record(3)
168			result2 = table.read_record(3)
169			self.assertEquals(result1, result2)
170
171	bh	818
172	bh	765	if __name__ == "__main__":
173			support.run_tests()
Name	Value
svn:eol-style	native
svn:keywords	Author Date Id Revision