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, FIELDTYPE_DOUBLE
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, FIELDTYPE_DOUBLE)
        self.assertEquals(columns[3].name, 'PONET_ID')
        self.assertEquals(columns[3].type, FIELDTYPE_INT)
        self.assertEquals(columns[6].name, 'POPYCOUN')
        self.assertEquals(columns[6].type, FIELDTYPE_STRING)

        # HasColumn
        self.failUnless(table.HasColumn("AREA"))
        self.failUnless(table.HasColumn(1))
        # HasColumn for non-exisiting columns
        self.failIf(table.HasColumn("non_existing_name"))
        self.failIf(table.HasColumn(100))

        # Reading rows and values.
        self.assertEquals(table.ReadRowAsDict(144),
                          {'POPYCOUN': 'IC', 'POPYADMIN': '', 'PONET_': 146,
                           'AREA': 19.462,
                           'POPYTYPE': 1, 'PERIMETER': 88.518000000000001,
                           'POPYREG': '1',
                           'PONET_ID': 145})
        self.assertEquals(table.ReadValue(144, "AREA"), 19.462)
        self.assertEquals(table.ReadValue(144, 3), 145)

        # ValueRange 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())

        # The title is simply copied over from the original table
        self.assertEquals(table.Title(), orig_table.Title())

        # The TransientTable class itself doesn't implement the
        # Dependencies method, so we don't test it.


    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_auto_transient_table_query(self):
        """Test AutoTransientTable.SimpleQuery()"""
        orig_table = DBFTable(os.path.join("..", "Data", "iceland",
                                           "political.dbf"))
        table = AutoTransientTable(self.transientdb, orig_table)
        # Only a simple test here. The AutoTransientTable simply
        # delegates to its transient table so it should be OK that the
        # real test for it is in test_transient_table_query. However,
        # it's important to check that the column handling works
        # correctly because the AutoTransientTable and it's underlying
        # transient table use different column object types.
        self.assertEquals(table.SimpleQuery(table.Column("AREA"), ">", 10.0),
                          [144])

        # test using a Column object as the right parameter
        self.assertEquals(table.SimpleQuery(table.Column("POPYTYPE"),
                                            "==",
                                            table.Column("POPYREG")),
                          range(156))

    def test_auto_transient_table_dependencies(self):
        """Test AutoTransientTable.Dependencies()"""
        orig_table = DBFTable(os.path.join("..", "Data", "iceland",
                                           "political.dbf"))
        table = AutoTransientTable(self.transientdb, orig_table)
        self.assertEquals(table.Dependencies(), (orig_table,))

    def test_auto_transient_table_title(self):
        """Test AutoTransientTable.Title()"""
        orig_table = DBFTable(os.path.join("..", "Data", "iceland",
                                           "political.dbf"))
        table = AutoTransientTable(self.transientdb, orig_table)
        # The title is of course the same as that of the original table
        self.assertEquals(table.Title(), orig_table.Title())

    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.Column(0).type, FIELDTYPE_DOUBLE)
        self.assertEquals(table.Column(0).name, 'AREA')
        self.assertEquals(table.Column(7).type, FIELDTYPE_INT)
        self.assertEquals(table.Column(7).name, 'code')
        self.assertEquals(table.Column(4).type, FIELDTYPE_STRING)
        self.assertEquals(table.Column(4).name, 'CLPTLABEL')
        # HasColumn
        self.failUnless(table.HasColumn("AREA"))
        self.failUnless(table.HasColumn(1))
        # HasColumn for non-exisiting columns
        self.failIf(table.HasColumn("non_existing_name"))
        self.failIf(table.HasColumn(100))

        # Reading rows and values
        self.assertEquals(table.ReadRowAsDict(22),
                          {'PERIMETER': 0.0, 'CLPOINT_': 23,
                           'AREA': 0.0, 'CLPTLABEL': 'RUINS',
                           'CLPOINT_ID': 38, 'CLPTFLAG': 0,
                           'code': 1, 'type': 'RUINS'})
        self.assertEquals(table.ReadValue(22, "type"), 'RUINS')
        self.assertEquals(table.ReadValue(22, 7), 1)

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

        # The TransientJoinedTable depends on both input tables
        self.assertEquals(table.Dependencies(), (landmarks, auto))

        # The title is constructed from the titles of the input tables.
        self.assertEquals(table.Title(),
                          "Join of %s and %s" % (landmarks.Title(),
                                                 auto.Title()))


    def test_transient_table_read_twice(self):
        """Test TransientTable.ReadRowAsDict() 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.ReadRowAsDict(3)
        result2 = table.ReadRowAsDict(3)
        self.assertEquals(result1, result2)


    def test_transient_table_query(self):
        """Test TransientTable.SimpleQuery()"""
        simple = MemoryTable([("type", FIELDTYPE_STRING),
                              ("value", FIELDTYPE_DOUBLE),
                              ("code", FIELDTYPE_INT)],
                             [("OTHER/UNKNOWN", -1.5, 11),
                              ("RUINS", 0.0, 1),
                              ("FARM", 3.141, 2),
                              ("BUILDING", 2.5, 3),
                              ("HUT", 1e6, 4),
                              ("LIGHTHOUSE", -0.01, 5)])
        table = TransientTable(self.transientdb, simple)

        # A column and a value
        self.assertEquals(table.SimpleQuery(table.Column(0), "==", "RUINS"),
                          [1])
        self.assertEquals(table.SimpleQuery(table.Column(2), "!=", 2),
                          [0, 1, 3, 4, 5])
        self.assertEquals(table.SimpleQuery(table.Column(1), "<", 1.0),
                          [0, 1, 5])
        self.assertEquals(table.SimpleQuery(table.Column(1), "<=", -1.5),
                          [0])
        self.assertEquals(table.SimpleQuery(table.Column(2), ">", 3),
                          [0, 4, 5])
        self.assertEquals(table.SimpleQuery(table.Column(2), ">=", 3),
                          [0, 3, 4, 5])

        # Two columns as operands
        self.assertEquals(table.SimpleQuery(table.Column(1),
                                            "<=", table.Column(2)),
                          [0, 1, 3, 5])

        # Test whether invalid operators raise a ValueError
        self.assertRaises(ValueError,
                          table.SimpleQuery,
                          table.Column(1), "<<", table.Column(2))


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	bh	839	FIELDTYPE_INT, FIELDTYPE_DOUBLE
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	bh	839	self.assertEquals(columns[0].type, FIELDTYPE_DOUBLE)
58	bh	818	self.assertEquals(columns[3].name, 'PONET_ID')
59	bh	839	self.assertEquals(columns[3].type, FIELDTYPE_INT)
60	bh	818	self.assertEquals(columns[6].name, 'POPYCOUN')
61	bh	839	self.assertEquals(columns[6].type, FIELDTYPE_STRING)
62	bh	765
63	bh	839	# 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	bh	849	# Reading rows and values.
71	bh	818	self.assertEquals(table.ReadRowAsDict(144),
72	bh	765	{'POPYCOUN': 'IC', 'POPYADMIN': '', 'PONET_': 146,
73			'AREA': 19.462,
74			'POPYTYPE': 1, 'PERIMETER': 88.518000000000001,
75			'POPYREG': '1',
76			'PONET_ID': 145})
77	bh	849	self.assertEquals(table.ReadValue(144, "AREA"), 19.462)
78			self.assertEquals(table.ReadValue(144, 3), 145)
79	bh	765
80	bh	839	# ValueRange may induce a copy to the transient database.
81	bh	765	# Therefore we put it last so that we can execute this method
82			# twice to check whether the other methods still work after the
83			# copy
84	bh	818	self.assertEquals(table.ValueRange("AREA"), (0.0, 19.462))
85	bh	765
86	bh	818	unique = table.UniqueValues("PONET_ID")
87	bh	765	unique.sort()
88			self.assertEquals(unique, range(1, 157))
89
90			def test_transient_table(self):
91			"""Test TransientTable(dbftable)
92
93			The TransientTable should copy the data to the
94			TransientDatabase.
95			"""
96			orig_table = DBFTable(os.path.join("..", "Data", "iceland",
97			"political.dbf"))
98			table = TransientTable(self.transientdb, orig_table)
99			self.run_iceland_political_tests(table)
100
101			# The transient_table method should return the table itself
102			self.assert_(table is table.transient_table())
103
104	bh	998	# The title is simply copied over from the original table
105			self.assertEquals(table.Title(), orig_table.Title())
106
107	bh	984	# The TransientTable class itself doesn't implement the
108			# Dependencies method, so we don't test it.
109	bh	765
110	bh	984
111	bh	765	def test_auto_transient_table(self):
112			"""Test AutoTransientTable(dbftable)
113
114			The AutoTransientTable should copy the data to the
115			TransientDatabase on demand.
116			"""
117			orig_table = DBFTable(os.path.join("..", "Data", "iceland",
118			"political.dbf"))
119			table = AutoTransientTable(self.transientdb, orig_table)
120
121			# Run the tests twice so that we execute them once when the data
122			# has not been copied to the transient db yet and once when it
123			# has. This assumes that run_iceland_political_tests does at
124			# least one call to a method that copies to the transient db at
125			# its end.
126			self.run_iceland_political_tests(table)
127			self.run_iceland_political_tests(table)
128
129	bh	845	def test_auto_transient_table_query(self):
130			"""Test AutoTransientTable.SimpleQuery()"""
131			orig_table = DBFTable(os.path.join("..", "Data", "iceland",
132			"political.dbf"))
133			table = AutoTransientTable(self.transientdb, orig_table)
134	jonathan	948	# Only a simple test here. The AutoTransientTable simply
135	bh	845	# delegates to its transient table so it should be OK that the
136			# real test for it is in test_transient_table_query. However,
137			# it's important to check that the column handling works
138			# correctly because the AutoTransientTable and it's underlying
139			# transient table use different column object types.
140			self.assertEquals(table.SimpleQuery(table.Column("AREA"), ">", 10.0),
141			[144])
142	bh	765
143	jonathan	948	# test using a Column object as the right parameter
144	bh	984	self.assertEquals(table.SimpleQuery(table.Column("POPYTYPE"),
145	jonathan	948	"==",
146			table.Column("POPYREG")),
147			range(156))
148
149	bh	984	def test_auto_transient_table_dependencies(self):
150			"""Test AutoTransientTable.Dependencies()"""
151			orig_table = DBFTable(os.path.join("..", "Data", "iceland",
152			"political.dbf"))
153			table = AutoTransientTable(self.transientdb, orig_table)
154			self.assertEquals(table.Dependencies(), (orig_table,))
155
156	bh	998	def test_auto_transient_table_title(self):
157			"""Test AutoTransientTable.Title()"""
158			orig_table = DBFTable(os.path.join("..", "Data", "iceland",
159			"political.dbf"))
160			table = AutoTransientTable(self.transientdb, orig_table)
161			# The title is of course the same as that of the original table
162			self.assertEquals(table.Title(), orig_table.Title())
163
164	bh	765	def test_transient_joined_table(self):
165			"""Test TransientJoinedTable"""
166	jan	805	simple = MemoryTable([("type", FIELDTYPE_STRING),
167	bh	765	("code", FIELDTYPE_INT)],
168			[("OTHER/UNKNOWN", 0),
169			("RUINS", 1),
170			("FARM", 2),
171			("BUILDING", 3),
172			("HUT", 4),
173			("LIGHTHOUSE", 5)])
174			auto = AutoTransientTable(self.transientdb, simple)
175			filename = os.path.join("..", "Data", "iceland",
176			"cultural_landmark-point.dbf")
177			landmarks = AutoTransientTable(self.transientdb, DBFTable(filename))
178
179			table = TransientJoinedTable(self.transientdb, landmarks, "CLPTLABEL",
180			auto, "type")
181
182	bh	818	self.assertEquals(table.NumRows(), 34)
183			self.assertEquals(table.NumColumns(), 8)
184	bh	839	self.assertEquals(table.Column(0).type, FIELDTYPE_DOUBLE)
185			self.assertEquals(table.Column(0).name, 'AREA')
186			self.assertEquals(table.Column(7).type, FIELDTYPE_INT)
187			self.assertEquals(table.Column(7).name, 'code')
188			self.assertEquals(table.Column(4).type, FIELDTYPE_STRING)
189			self.assertEquals(table.Column(4).name, 'CLPTLABEL')
190			# HasColumn
191			self.failUnless(table.HasColumn("AREA"))
192			self.failUnless(table.HasColumn(1))
193			# HasColumn for non-exisiting columns
194			self.failIf(table.HasColumn("non_existing_name"))
195			self.failIf(table.HasColumn(100))
196	bh	765
197	bh	849	# Reading rows and values
198	bh	839	self.assertEquals(table.ReadRowAsDict(22),
199	bh	765	{'PERIMETER': 0.0, 'CLPOINT_': 23,
200			'AREA': 0.0, 'CLPTLABEL': 'RUINS',
201			'CLPOINT_ID': 38, 'CLPTFLAG': 0,
202			'code': 1, 'type': 'RUINS'})
203	bh	849	self.assertEquals(table.ReadValue(22, "type"), 'RUINS')
204			self.assertEquals(table.ReadValue(22, 7), 1)
205	bh	765
206			# The transient_table method should return the table itself
207			self.assert_(table is table.transient_table())
208
209	bh	984	# The TransientJoinedTable depends on both input tables
210			self.assertEquals(table.Dependencies(), (landmarks, auto))
211	bh	765
212	bh	998	# The title is constructed from the titles of the input tables.
213			self.assertEquals(table.Title(),
214			"Join of %s and %s" % (landmarks.Title(),
215			auto.Title()))
216	bh	984
217	bh	998
218	bh	785	def test_transient_table_read_twice(self):
219	bh	842	"""Test TransientTable.ReadRowAsDict() reading the same record twice"""
220	jan	805	simple = MemoryTable([("type", FIELDTYPE_STRING),
221	bh	785	("code", FIELDTYPE_INT)],
222			[("OTHER/UNKNOWN", 0),
223			("RUINS", 1),
224			("FARM", 2),
225			("BUILDING", 3),
226			("HUT", 4),
227			("LIGHTHOUSE", 5)])
228			table = TransientTable(self.transientdb, simple)
229	bh	765
230	bh	785	# There was a bug where reading the same record twice would
231			# raise an exception in the second call because of an
232			# unitialized local variable, so for passing the test it's
233			# enough if reading simply succeeds. OTOH, while we're at it we
234			# might as well check whether the results are equal anyway :)
235	bh	839	result1 = table.ReadRowAsDict(3)
236			result2 = table.ReadRowAsDict(3)
237	bh	785	self.assertEquals(result1, result2)
238
239	bh	818
240	bh	842	def test_transient_table_query(self):
241			"""Test TransientTable.SimpleQuery()"""
242			simple = MemoryTable([("type", FIELDTYPE_STRING),
243			("value", FIELDTYPE_DOUBLE),
244			("code", FIELDTYPE_INT)],
245			[("OTHER/UNKNOWN", -1.5, 11),
246			("RUINS", 0.0, 1),
247			("FARM", 3.141, 2),
248			("BUILDING", 2.5, 3),
249			("HUT", 1e6, 4),
250			("LIGHTHOUSE", -0.01, 5)])
251			table = TransientTable(self.transientdb, simple)
252
253			# A column and a value
254			self.assertEquals(table.SimpleQuery(table.Column(0), "==", "RUINS"),
255			[1])
256			self.assertEquals(table.SimpleQuery(table.Column(2), "!=", 2),
257			[0, 1, 3, 4, 5])
258			self.assertEquals(table.SimpleQuery(table.Column(1), "<", 1.0),
259			[0, 1, 5])
260			self.assertEquals(table.SimpleQuery(table.Column(1), "<=", -1.5),
261			[0])
262			self.assertEquals(table.SimpleQuery(table.Column(2), ">", 3),
263			[0, 4, 5])
264			self.assertEquals(table.SimpleQuery(table.Column(2), ">=", 3),
265			[0, 3, 4, 5])
266
267			# Two columns as operands
268			self.assertEquals(table.SimpleQuery(table.Column(1),
269			"<=", table.Column(2)),
270			[0, 1, 3, 5])
271
272			# Test whether invalid operators raise a ValueError
273			self.assertRaises(ValueError,
274			table.SimpleQuery,
275			table.Column(1), "<<", table.Column(2))
276
277
278	bh	765	if __name__ == "__main__":
279			support.run_tests()
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