WIP-pyshapelib-bramz/test/test_session.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 Session class
"""

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

import os
import unittest

import support
support.initthuban()

from Thuban.Model.messages import CHANGED, MAPS_CHANGED, FILENAME_CHANGED, \
     MAP_PROJECTION_CHANGED, MAP_LAYERS_CHANGED, \
     LAYER_VISIBILITY_CHANGED, LAYER_CHANGED, TABLE_REMOVED
from Thuban.Model.session import Session
from Thuban.Model.map import Map
from Thuban.Model.layer import Layer
from Thuban.Model.proj import Projection
from Thuban.Model.color import Color
from Thuban.Model.table import MemoryTable, FIELDTYPE_STRING, \
                               FIELDTYPE_INT, FIELDTYPE_DOUBLE
from Thuban.Model.data import DerivedShapeStore
from Thuban.Model.transientdb import TransientJoinedTable

class TestSessionSimple(unittest.TestCase):

    """Very simple test cases for Session"""

    def setUp(self):
        """Initialize self.session to None"""
        self.session = None

    def tearDown(self):
        """Call self.session.Destroy() and reset self.session to None"""
        self.session.Destroy()
        self.session = None

    def test_initial_state(self):
        """Test Session's initial state"""
        session = self.session = Session("Test Session")
        self.assertEquals(session.Title(), "Test Session")
        self.assertEquals(session.Maps(), [])
        self.assertEquals(session.Tables(), [])
        self.assertEquals(session.ShapeStores(), [])
        self.assertEquals(session.filename, None)
        self.failIf(session.HasMaps())
        self.failIf(session.WasModified())

    def test_add_table(self):
        """Test Session.AddTable()"""
        session = self.session = Session("Test Session")
        memtable = 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 = session.AddTable(memtable)
        self.assertEquals(session.Tables(), [table])

    def test_open_table_file(self):
        """Test Session.OpenTableFile()"""
        session = self.session = Session("Test Session")
        filename = os.path.join("..", "Data", "iceland",
                                "roads-line.dbf")
        table = session.OpenTableFile(filename)
        self.assertEquals(session.Tables(), [table])

    def test_open_shapefile(self):
        """Test Session.OpenShapefile()"""
        session = self.session = Session("Test Session")
        filename = os.path.join("..", "Data", "iceland",
                                "roads-line.shp")
        store = session.OpenShapefile(filename)
        self.assertEquals(store.FileName(), os.path.abspath(filename))
        # The filetype of a shapefile is "shapefile"
        self.assertEquals(store.FileType(), "shapefile")
        # The shapestore itself depends on nothing else
        self.assertEquals(store.Dependencies(), ())
        # The shapestore's table depends on the shapestore
        self.assertEquals(store.Table().Dependencies(), (store,))

        self.assertEquals(session.Tables(), [store.Table()])

    def test_add_shapestore(self):
        """Test Session.AddShapeStore()"""
        session = self.session = Session("Test Session")
        filename = os.path.join("..", "Data", "iceland",
                                "roads-line.shp")
        try:
            store = session.OpenShapefile(filename)
            derived = DerivedShapeStore(store, store.Table())
            session.AddShapeStore(derived)
            self.assertEquals(session.ShapeStores(), [store, derived])
        finally:
            store = derived = None


    def test_unreferenced_tables(self):
        """Test Session.UnreferencedTables()"""
        session = self.session = Session("Test Session")
        filename = os.path.join("..", "Data", "iceland",
                                "roads-line.shp")
        try:
            store = session.OpenShapefile(filename)
            filename = os.path.join("..", "Data", "iceland",
                                    "roads-line.dbf")
            table = session.OpenTableFile(filename)
            self.assertEquals(session.Tables(), [table, store.Table()])
            # The store's table is reference by the store, so the only
            # unreferenced table is the roads-line table
            self.assertEquals(session.UnreferencedTables(), [table])
        finally:
            store = table = None


class UnreferencedTablesTests(unittest.TestCase):

    """Test cases for the session.UnreferencedTables() method"""

    def setUp(self):
        """Create a session with a few test tables"""
        self.session = Session("Test Session")
        memtable = 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)])
        self.memtable = self.session.AddTable(memtable)
        filename = os.path.join("..", "Data", "iceland",
                                "roads-line.dbf")
        self.roads_line = self.session.OpenTableFile(filename)
        filename = os.path.join("..", "Data", "iceland",
                                "cultural_landmark-point.dbf")
        self.landmarks = self.session.OpenTableFile(filename)

    def tearDown(self):
        """Clear the session and layers"""
        self.session = self.memtable = self.roads_line = self.landmarks = None

    def test_unreferenced_tables(self):
        """Test Session.UnreferencedTables()"""
        self.assertEquals(self.session.UnreferencedTables(),
                          [self.memtable, self.roads_line, self.landmarks])

    def test_unreferenced_tables_with_joins(self):
        """Test Session.UnreferencedTables() with joins"""
        joined = TransientJoinedTable(self.session.TransientDB(),
                                      self.landmarks, "CLPTLABEL",
                                      self.memtable, "type", outer_join = True)
        try:
            joined = self.session.AddTable(joined)
            # After the join, landmarks and memtable are referenced by
            # joined which in turn is referenced by nothing
            self.assertEquals(self.session.UnreferencedTables(),
                              [self.roads_line, joined])
            # Creating a DerivedShapeStore that references the joined table
            # will remove it from the list of unreferenced tables,
            store = self.session.OpenShapefile(os.path.join("..", "Data",
                                                            "iceland",
                                                            "political.dbf"))
            derived = DerivedShapeStore(store, joined)
            self.session.AddShapeStore(derived)
            self.assertEquals(self.session.UnreferencedTables(),
                              [self.roads_line])
        finally:
            joined = derived = store = None

class TestSessionBase(unittest.TestCase, support.SubscriberMixin):

    """Base class for Session test cases that test the messages"""

    def setUp(self):
        """
        Clear the message list, create a session and subscribe to its messages

        Bind the session to self.session.
        """
        self.clear_messages()

        # Create a Session and subscribe to all interesting channels.
        self.session = Session("Test Session")
        for channel in (CHANGED,
                        MAPS_CHANGED,
                        FILENAME_CHANGED,
                        MAP_PROJECTION_CHANGED,
                        MAP_LAYERS_CHANGED,
                        LAYER_VISIBILITY_CHANGED,
                        LAYER_CHANGED,
                        TABLE_REMOVED):
            self.session.Subscribe(channel,
                                   self.subscribe_with_params, channel)

    def tearDown(self):
        """Destroy self.session and clear the message list"""
        self.session.Destroy()
        self.session = None
        self.clear_messages()


class TestSessionMessages(TestSessionBase):

    """Simple Session test cases that test messges"""

    def test_add_map(self):
        """Test Session.AddMap"""
        self.failIf(self.session.WasModified())
        map = Map("Some Map")
        self.session.AddMap(map)
        self.assert_(self.session.HasMaps())
        self.assert_(self.session.WasModified())
        self.assertEquals(self.session.Maps(), [map])
        self.check_messages([(MAPS_CHANGED,),
                             (self.session, CHANGED)])

    def test_set_filename(self):
        """Test Session.SetFilename"""
        self.session.SetFilename("session_set_filename_test")
        self.session.filename = "session_set_filename_test"
        self.check_messages([(FILENAME_CHANGED,),
                             (self.session, CHANGED)])

    def test_remove_table(self):
        """Test Session.RemoveTable()"""
        memtable = 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 = self.session.AddTable(memtable)
        self.assertEquals(self.session.Tables(), [table])
        self.clear_messages()
        self.session.RemoveTable(table)
        self.check_messages([(table, TABLE_REMOVED),
                             (self.session, CHANGED)])
        self.assertEquals(self.session.Tables(), [])
        self.assertRaises(ValueError, self.session.RemoveTable, table)


class TestSessionWithContent(TestSessionBase):

    """Session test cases that start with a filled session."""

    def setUp(self):
        """Extend the inherited method to add a non-empty map to self.session
        """
        TestSessionBase.setUp(self)
        open_shp = self.session.OpenShapefile
        self.arc_layer = Layer("Roads",
                               open_shp(os.path.join("..", "Data", "iceland",
                                                     "roads-line.shp")))
        self.poly_layer = Layer("Political",
                                open_shp(os.path.join("..", "Data", "iceland",
                                                      "political.shp")))
        self.map = Map("A Map")
        self.map.AddLayer(self.arc_layer)
        self.map.AddLayer(self.poly_layer)
        self.session.AddMap(self.map)
        self.session.UnsetModified()
        self.clear_messages()

    def tearDown(self):
        TestSessionBase.tearDown(self)
        self.arc_layer = self.poly_layer = None

    def test_remove_map(self):
        """Test Session.RemoveMap"""
        self.session.RemoveMap(self.map)
        self.assert_(self.session.WasModified())
        self.failIf(self.session.HasMaps())
        self.check_messages([(MAPS_CHANGED,),
                             (self.session, CHANGED)])

    def test_tree_info(self):
        """Test Session.TreeInfo"""
        self.assertEquals(self.session.TreeInfo(),
                          ('Session: Test Session',
                           ['Filename:',
                            'Unmodified',
                            self.map]))

    def test_forward_map_projection(self):
        """Test Session forwarding of Map.SetProjection messages"""
        proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
        self.map.SetProjection(proj)
        self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
                             (self.session, CHANGED)])
        self.assert_(self.session.WasModified())

    def test_forward_map_projection(self):
        """Test Session forwarding of Map.SetProjection messages"""
        proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
        self.map.SetProjection(proj)
        self.assert_(self.session.WasModified())
        self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
                             (self.session, CHANGED)])

    def test_forwarding_fill(self):
        """Test Session's forwarding of Layer.SetFill messages"""
        self.poly_layer.GetClassification().SetDefaultFill(Color(0.0, 0.5, 1.0))
        self.assert_(self.session.WasModified())
        self.check_messages([(self.poly_layer, LAYER_CHANGED),
                             (self.session, CHANGED)])

    def test_forwarding_stroke(self):
        """Test Session's forwarding of Layer.SetStroke messages"""
        self.poly_layer.GetClassification().\
            SetDefaultLineColor(Color(0.0, 0.5, 1.0))
        self.assert_(self.session.WasModified())
        self.check_messages([(self.poly_layer, LAYER_CHANGED),
                             (self.session, CHANGED)])

    def test_forwarding_stroke_width(self):
        """Test Session's forwarding of Layer.SetStrokeWidth messages"""
        self.poly_layer.GetClassification().SetDefaultLineWidth(3)
        self.assert_(self.session.WasModified())
        self.check_messages([(self.poly_layer, LAYER_CHANGED),
                             (self.session, CHANGED)])

    def test_forwarding_visibility(self):
        """Test Session's forwarding of Layer.SetVisible messages"""
        self.poly_layer.SetVisible(0)
        # Currently changing the visibility of a layer doesn't change
        # the modification flag.
        self.failIf(self.session.WasModified())
        self.check_messages([(self.poly_layer, LAYER_VISIBILITY_CHANGED),
                             (self.session, CHANGED)])

    def test_unset_modified_map(self):
        """Test Session.UnsetModified with map level changes"""
        self.failIf(self.session.WasModified())
        proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
        self.map.SetProjection(proj)
        self.assert_(self.session.WasModified())
        self.session.UnsetModified()
        self.failIf(self.session.WasModified())

    def test_unset_modified_layer(self):
        """Test Session.UnsetModified with layer level changes"""
        self.failIf(self.session.WasModified())
        self.poly_layer.GetClassification().SetDefaultLineWidth(3)
        self.assert_(self.session.WasModified())
        self.session.UnsetModified()
        self.failIf(self.session.WasModified())
        self.check_messages([(self.poly_layer, LAYER_CHANGED),
                             (self.session, CHANGED),
                             (CHANGED,)])

    def test_shape_stores(self):
        """Test Session.ShapeStores()"""
        # Strictly speaking the session doesn't make guarantees about
        # the order of the ShapeStores in the list, but currently it's
        # deterministic and they're listed in the order in which they
        # were created
        self.assertEquals(self.session.ShapeStores(),
                          [self.arc_layer.ShapeStore(),
                           self.poly_layer.ShapeStore()])
        # If we remove the map from the session and clear our instance
        # variables that hold the layers and the map the list should
        # become empty again.
        self.session.RemoveMap(self.map)
        self.arc_layer = self.poly_layer = self.map = None
        self.assertEquals(self.session.ShapeStores(), [])

    def test_tables(self):
        """Test Session.Tables()"""
        # Strictly speaking the session doesn't make guarantees about
        # the order of the tables in the list, but currently it's
        # deterministic and they're listed in the order in which they
        # were opened
        self.assertEquals(self.session.Tables(),
                          [self.arc_layer.ShapeStore().Table(),
                           self.poly_layer.ShapeStore().Table()])
        # If we remove the map from the session and clear our instance
        # variables that hold the layers and the map the list should
        # become empty again.
        self.session.RemoveMap(self.map)
        self.arc_layer = self.poly_layer = self.map = None
        self.assertEquals(self.session.Tables(), [])


if __name__ == "__main__":
    unittest.main()
1	bh	723	# Copyright (c) 2002, 2003 by Intevation GmbH
2	bh	334	# 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 Session class
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			from Thuban.Model.messages import CHANGED, MAPS_CHANGED, FILENAME_CHANGED, \
23	jonathan	584	MAP_PROJECTION_CHANGED, MAP_LAYERS_CHANGED, \
24	bh	1068	LAYER_VISIBILITY_CHANGED, LAYER_CHANGED, TABLE_REMOVED
25	bh	334	from Thuban.Model.session import Session
26			from Thuban.Model.map import Map
27			from Thuban.Model.layer import Layer
28			from Thuban.Model.proj import Projection
29			from Thuban.Model.color import Color
30	bh	982	from Thuban.Model.table import MemoryTable, FIELDTYPE_STRING, \
31			FIELDTYPE_INT, FIELDTYPE_DOUBLE
32	bh	1016	from Thuban.Model.data import DerivedShapeStore
33	bh	1068	from Thuban.Model.transientdb import TransientJoinedTable
34	bh	334
35			class TestSessionSimple(unittest.TestCase):
36
37			"""Very simple test cases for Session"""
38
39	bh	984	def setUp(self):
40			"""Initialize self.session to None"""
41			self.session = None
42
43			def tearDown(self):
44			"""Call self.session.Destroy() and reset self.session to None"""
45			self.session.Destroy()
46			self.session = None
47
48	bh	334	def test_initial_state(self):
49			"""Test Session's initial state"""
50	bh	984	session = self.session = Session("Test Session")
51	bh	334	self.assertEquals(session.Title(), "Test Session")
52			self.assertEquals(session.Maps(), [])
53	bh	851	self.assertEquals(session.Tables(), [])
54			self.assertEquals(session.ShapeStores(), [])
55	bh	334	self.assertEquals(session.filename, None)
56			self.failIf(session.HasMaps())
57			self.failIf(session.WasModified())
58
59	bh	982	def test_add_table(self):
60			"""Test Session.AddTable()"""
61	bh	984	session = self.session = Session("Test Session")
62	bh	982	memtable = MemoryTable([("type", FIELDTYPE_STRING),
63			("value", FIELDTYPE_DOUBLE),
64			("code", FIELDTYPE_INT)],
65			[("OTHER/UNKNOWN", -1.5, 11),
66			("RUINS", 0.0, 1),
67			("FARM", 3.141, 2),
68			("BUILDING", 2.5, 3),
69			("HUT", 1e6, 4),
70			("LIGHTHOUSE", -0.01, 5)])
71			table = session.AddTable(memtable)
72			self.assertEquals(session.Tables(), [table])
73	bh	334
74	bh	1039	def test_open_table_file(self):
75			"""Test Session.OpenTableFile()"""
76			session = self.session = Session("Test Session")
77			filename = os.path.join("..", "Data", "iceland",
78			"roads-line.dbf")
79			table = session.OpenTableFile(filename)
80			self.assertEquals(session.Tables(), [table])
81
82	bh	984	def test_open_shapefile(self):
83			"""Test Session.OpenShapefile()"""
84			session = self.session = Session("Test Session")
85			filename = os.path.join("..", "Data", "iceland",
86			"roads-line.shp")
87			store = session.OpenShapefile(filename)
88			self.assertEquals(store.FileName(), os.path.abspath(filename))
89			# The filetype of a shapefile is "shapefile"
90			self.assertEquals(store.FileType(), "shapefile")
91			# The shapestore itself depends on nothing else
92			self.assertEquals(store.Dependencies(), ())
93			# The shapestore's table depends on the shapestore
94			self.assertEquals(store.Table().Dependencies(), (store,))
95	bh	982
96	bh	984	self.assertEquals(session.Tables(), [store.Table()])
97
98	bh	1016	def test_add_shapestore(self):
99			"""Test Session.AddShapeStore()"""
100			session = self.session = Session("Test Session")
101			filename = os.path.join("..", "Data", "iceland",
102			"roads-line.shp")
103			try:
104			store = session.OpenShapefile(filename)
105			derived = DerivedShapeStore(store, store.Table())
106			session.AddShapeStore(derived)
107			self.assertEquals(session.ShapeStores(), [store, derived])
108			finally:
109			store = derived = None
110	bh	984
111	bh	1016
112	bh	1068	def test_unreferenced_tables(self):
113			"""Test Session.UnreferencedTables()"""
114			session = self.session = Session("Test Session")
115			filename = os.path.join("..", "Data", "iceland",
116			"roads-line.shp")
117			try:
118			store = session.OpenShapefile(filename)
119			filename = os.path.join("..", "Data", "iceland",
120			"roads-line.dbf")
121			table = session.OpenTableFile(filename)
122			self.assertEquals(session.Tables(), [table, store.Table()])
123			# The store's table is reference by the store, so the only
124			# unreferenced table is the roads-line table
125			self.assertEquals(session.UnreferencedTables(), [table])
126			finally:
127			store = table = None
128
129
130			class UnreferencedTablesTests(unittest.TestCase):
131
132			"""Test cases for the session.UnreferencedTables() method"""
133
134			def setUp(self):
135			"""Create a session with a few test tables"""
136			self.session = Session("Test Session")
137			memtable = MemoryTable([("type", FIELDTYPE_STRING),
138			("value", FIELDTYPE_DOUBLE),
139			("code", FIELDTYPE_INT)],
140			[("OTHER/UNKNOWN", -1.5, 11),
141			("RUINS", 0.0, 1),
142			("FARM", 3.141, 2),
143			("BUILDING", 2.5, 3),
144			("HUT", 1e6, 4),
145			("LIGHTHOUSE", -0.01, 5)])
146			self.memtable = self.session.AddTable(memtable)
147			filename = os.path.join("..", "Data", "iceland",
148			"roads-line.dbf")
149			self.roads_line = self.session.OpenTableFile(filename)
150			filename = os.path.join("..", "Data", "iceland",
151			"cultural_landmark-point.dbf")
152			self.landmarks = self.session.OpenTableFile(filename)
153
154			def tearDown(self):
155			"""Clear the session and layers"""
156			self.session = self.memtable = self.roads_line = self.landmarks = None
157
158			def test_unreferenced_tables(self):
159			"""Test Session.UnreferencedTables()"""
160			self.assertEquals(self.session.UnreferencedTables(),
161			[self.memtable, self.roads_line, self.landmarks])
162
163			def test_unreferenced_tables_with_joins(self):
164			"""Test Session.UnreferencedTables() with joins"""
165			joined = TransientJoinedTable(self.session.TransientDB(),
166			self.landmarks, "CLPTLABEL",
167			self.memtable, "type", outer_join = True)
168			try:
169			joined = self.session.AddTable(joined)
170			# After the join, landmarks and memtable are referenced by
171			# joined which in turn is referenced by nothing
172			self.assertEquals(self.session.UnreferencedTables(),
173			[self.roads_line, joined])
174			# Creating a DerivedShapeStore that references the joined table
175			# will remove it from the list of unreferenced tables,
176			store = self.session.OpenShapefile(os.path.join("..", "Data",
177			"iceland",
178			"political.dbf"))
179			derived = DerivedShapeStore(store, joined)
180			self.session.AddShapeStore(derived)
181			self.assertEquals(self.session.UnreferencedTables(),
182			[self.roads_line])
183			finally:
184			joined = derived = store = None
185
186	bh	334	class TestSessionBase(unittest.TestCase, support.SubscriberMixin):
187
188			"""Base class for Session test cases that test the messages"""
189
190			def setUp(self):
191			"""
192			Clear the message list, create a session and subscribe to its messages
193
194			Bind the session to self.session.
195			"""
196			self.clear_messages()
197
198			# Create a Session and subscribe to all interesting channels.
199			self.session = Session("Test Session")
200	bh	1068	for channel in (CHANGED,
201			MAPS_CHANGED,
202	jonathan	584	FILENAME_CHANGED,
203	bh	1068	MAP_PROJECTION_CHANGED,
204	jonathan	584	MAP_LAYERS_CHANGED,
205	bh	1068	LAYER_VISIBILITY_CHANGED,
206			LAYER_CHANGED,
207			TABLE_REMOVED):
208	bh	334	self.session.Subscribe(channel,
209			self.subscribe_with_params, channel)
210
211			def tearDown(self):
212			"""Destroy self.session and clear the message list"""
213			self.session.Destroy()
214	bh	723	self.session = None
215	bh	334	self.clear_messages()
216
217
218			class TestSessionMessages(TestSessionBase):
219
220			"""Simple Session test cases that test messges"""
221
222			def test_add_map(self):
223			"""Test Session.AddMap"""
224			self.failIf(self.session.WasModified())
225			map = Map("Some Map")
226			self.session.AddMap(map)
227			self.assert_(self.session.HasMaps())
228			self.assert_(self.session.WasModified())
229			self.assertEquals(self.session.Maps(), [map])
230			self.check_messages([(MAPS_CHANGED,),
231			(self.session, CHANGED)])
232
233			def test_set_filename(self):
234			"""Test Session.SetFilename"""
235			self.session.SetFilename("session_set_filename_test")
236			self.session.filename = "session_set_filename_test"
237			self.check_messages([(FILENAME_CHANGED,),
238			(self.session, CHANGED)])
239
240	bh	1068	def test_remove_table(self):
241			"""Test Session.RemoveTable()"""
242			memtable = 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 = self.session.AddTable(memtable)
252			self.assertEquals(self.session.Tables(), [table])
253			self.clear_messages()
254			self.session.RemoveTable(table)
255			self.check_messages([(table, TABLE_REMOVED),
256			(self.session, CHANGED)])
257			self.assertEquals(self.session.Tables(), [])
258			self.assertRaises(ValueError, self.session.RemoveTable, table)
259	bh	334
260	bh	1068
261	bh	334	class TestSessionWithContent(TestSessionBase):
262
263			"""Session test cases that start with a filled session."""
264
265			def setUp(self):
266			"""Extend the inherited method to add a non-empty map to self.session
267			"""
268			TestSessionBase.setUp(self)
269	bh	723	open_shp = self.session.OpenShapefile
270	bh	334	self.arc_layer = Layer("Roads",
271	bh	723	open_shp(os.path.join("..", "Data", "iceland",
272			"roads-line.shp")))
273	bh	334	self.poly_layer = Layer("Political",
274	bh	723	open_shp(os.path.join("..", "Data", "iceland",
275			"political.shp")))
276	bh	334	self.map = Map("A Map")
277			self.map.AddLayer(self.arc_layer)
278			self.map.AddLayer(self.poly_layer)
279			self.session.AddMap(self.map)
280			self.session.UnsetModified()
281			self.clear_messages()
282
283	bh	723	def tearDown(self):
284			TestSessionBase.tearDown(self)
285			self.arc_layer = self.poly_layer = None
286
287	bh	334	def test_remove_map(self):
288			"""Test Session.RemoveMap"""
289			self.session.RemoveMap(self.map)
290			self.assert_(self.session.WasModified())
291			self.failIf(self.session.HasMaps())
292			self.check_messages([(MAPS_CHANGED,),
293			(self.session, CHANGED)])
294
295			def test_tree_info(self):
296			"""Test Session.TreeInfo"""
297			self.assertEquals(self.session.TreeInfo(),
298			('Session: Test Session',
299			['Filename:',
300			'Unmodified',
301			self.map]))
302
303			def test_forward_map_projection(self):
304			"""Test Session forwarding of Map.SetProjection messages"""
305			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
306			self.map.SetProjection(proj)
307			self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
308			(self.session, CHANGED)])
309			self.assert_(self.session.WasModified())
310
311			def test_forward_map_projection(self):
312			"""Test Session forwarding of Map.SetProjection messages"""
313			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
314			self.map.SetProjection(proj)
315			self.assert_(self.session.WasModified())
316			self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
317			(self.session, CHANGED)])
318
319			def test_forwarding_fill(self):
320			"""Test Session's forwarding of Layer.SetFill messages"""
321	jonathan	409	self.poly_layer.GetClassification().SetDefaultFill(Color(0.0, 0.5, 1.0))
322	bh	334	self.assert_(self.session.WasModified())
323	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
324	bh	334	(self.session, CHANGED)])
325
326			def test_forwarding_stroke(self):
327			"""Test Session's forwarding of Layer.SetStroke messages"""
328	jonathan	409	self.poly_layer.GetClassification().\
329	jonathan	482	SetDefaultLineColor(Color(0.0, 0.5, 1.0))
330	bh	334	self.assert_(self.session.WasModified())
331	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
332	bh	334	(self.session, CHANGED)])
333
334			def test_forwarding_stroke_width(self):
335			"""Test Session's forwarding of Layer.SetStrokeWidth messages"""
336	jonathan	482	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
337	bh	334	self.assert_(self.session.WasModified())
338	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
339	bh	334	(self.session, CHANGED)])
340
341			def test_forwarding_visibility(self):
342			"""Test Session's forwarding of Layer.SetVisible messages"""
343			self.poly_layer.SetVisible(0)
344			# Currently changing the visibility of a layer doesn't change
345			# the modification flag.
346			self.failIf(self.session.WasModified())
347			self.check_messages([(self.poly_layer, LAYER_VISIBILITY_CHANGED),
348			(self.session, CHANGED)])
349
350			def test_unset_modified_map(self):
351			"""Test Session.UnsetModified with map level changes"""
352			self.failIf(self.session.WasModified())
353			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
354			self.map.SetProjection(proj)
355			self.assert_(self.session.WasModified())
356			self.session.UnsetModified()
357			self.failIf(self.session.WasModified())
358
359			def test_unset_modified_layer(self):
360			"""Test Session.UnsetModified with layer level changes"""
361			self.failIf(self.session.WasModified())
362	jonathan	482	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
363	bh	334	self.assert_(self.session.WasModified())
364			self.session.UnsetModified()
365			self.failIf(self.session.WasModified())
366	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
367	bh	334	(self.session, CHANGED),
368			(CHANGED,)])
369
370	bh	851	def test_shape_stores(self):
371			"""Test Session.ShapeStores()"""
372			# Strictly speaking the session doesn't make guarantees about
373			# the order of the ShapeStores in the list, but currently it's
374			# deterministic and they're listed in the order in which they
375			# were created
376			self.assertEquals(self.session.ShapeStores(),
377			[self.arc_layer.ShapeStore(),
378			self.poly_layer.ShapeStore()])
379			# If we remove the map from the session and clear our instance
380			# variables that hold the layers and the map the list should
381			# become empty again.
382			self.session.RemoveMap(self.map)
383			self.arc_layer = self.poly_layer = self.map = None
384			self.assertEquals(self.session.ShapeStores(), [])
385	bh	334
386	bh	851	def test_tables(self):
387			"""Test Session.Tables()"""
388			# Strictly speaking the session doesn't make guarantees about
389			# the order of the tables in the list, but currently it's
390			# deterministic and they're listed in the order in which they
391			# were opened
392			self.assertEquals(self.session.Tables(),
393			[self.arc_layer.ShapeStore().Table(),
394			self.poly_layer.ShapeStore().Table()])
395			# If we remove the map from the session and clear our instance
396			# variables that hold the layers and the map the list should
397			# become empty again.
398			self.session.RemoveMap(self.map)
399			self.arc_layer = self.poly_layer = self.map = None
400			self.assertEquals(self.session.Tables(), [])
401
402
403	bh	334	if __name__ == "__main__":
404			unittest.main()
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