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)])

        # The session should be unmodified before the AddTable call and
        # modified afterwards and of course the table should show up in
        # Tables
        self.failIf(session.WasModified())
        table = session.AddTable(memtable)
        self.assertEquals(session.Tables(), [table])
        self.failUnless(session.WasModified())

    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.memtable = self.roads_line = self.landmarks = None
        self.session.Destroy()
        self.session = 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",
                             "cultural_landmark-point.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, None, 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	bh	1125
72			# The session should be unmodified before the AddTable call and
73			# modified afterwards and of course the table should show up in
74			# Tables
75			self.failIf(session.WasModified())
76	bh	982	table = session.AddTable(memtable)
77			self.assertEquals(session.Tables(), [table])
78	bh	1125	self.failUnless(session.WasModified())
79	bh	334
80	bh	1039	def test_open_table_file(self):
81			"""Test Session.OpenTableFile()"""
82			session = self.session = Session("Test Session")
83			filename = os.path.join("..", "Data", "iceland",
84			"roads-line.dbf")
85			table = session.OpenTableFile(filename)
86			self.assertEquals(session.Tables(), [table])
87
88	bh	984	def test_open_shapefile(self):
89			"""Test Session.OpenShapefile()"""
90			session = self.session = Session("Test Session")
91			filename = os.path.join("..", "Data", "iceland",
92			"roads-line.shp")
93			store = session.OpenShapefile(filename)
94			self.assertEquals(store.FileName(), os.path.abspath(filename))
95			# The filetype of a shapefile is "shapefile"
96			self.assertEquals(store.FileType(), "shapefile")
97			# The shapestore itself depends on nothing else
98			self.assertEquals(store.Dependencies(), ())
99			# The shapestore's table depends on the shapestore
100			self.assertEquals(store.Table().Dependencies(), (store,))
101	bh	982
102	bh	984	self.assertEquals(session.Tables(), [store.Table()])
103
104	bh	1016	def test_add_shapestore(self):
105			"""Test Session.AddShapeStore()"""
106			session = self.session = Session("Test Session")
107			filename = os.path.join("..", "Data", "iceland",
108			"roads-line.shp")
109			try:
110			store = session.OpenShapefile(filename)
111			derived = DerivedShapeStore(store, store.Table())
112			session.AddShapeStore(derived)
113			self.assertEquals(session.ShapeStores(), [store, derived])
114			finally:
115			store = derived = None
116	bh	984
117	bh	1016
118	bh	1068	def test_unreferenced_tables(self):
119			"""Test Session.UnreferencedTables()"""
120			session = self.session = Session("Test Session")
121			filename = os.path.join("..", "Data", "iceland",
122			"roads-line.shp")
123			try:
124			store = session.OpenShapefile(filename)
125			filename = os.path.join("..", "Data", "iceland",
126			"roads-line.dbf")
127			table = session.OpenTableFile(filename)
128			self.assertEquals(session.Tables(), [table, store.Table()])
129			# The store's table is reference by the store, so the only
130			# unreferenced table is the roads-line table
131			self.assertEquals(session.UnreferencedTables(), [table])
132			finally:
133			store = table = None
134
135
136			class UnreferencedTablesTests(unittest.TestCase):
137
138			"""Test cases for the session.UnreferencedTables() method"""
139
140			def setUp(self):
141			"""Create a session with a few test tables"""
142			self.session = Session("Test Session")
143			memtable = MemoryTable([("type", FIELDTYPE_STRING),
144			("value", FIELDTYPE_DOUBLE),
145			("code", FIELDTYPE_INT)],
146			[("OTHER/UNKNOWN", -1.5, 11),
147			("RUINS", 0.0, 1),
148			("FARM", 3.141, 2),
149			("BUILDING", 2.5, 3),
150			("HUT", 1e6, 4),
151			("LIGHTHOUSE", -0.01, 5)])
152			self.memtable = self.session.AddTable(memtable)
153			filename = os.path.join("..", "Data", "iceland",
154			"roads-line.dbf")
155			self.roads_line = self.session.OpenTableFile(filename)
156			filename = os.path.join("..", "Data", "iceland",
157			"cultural_landmark-point.dbf")
158			self.landmarks = self.session.OpenTableFile(filename)
159
160			def tearDown(self):
161			"""Clear the session and layers"""
162	bh	1676	self.memtable = self.roads_line = self.landmarks = None
163			self.session.Destroy()
164			self.session = None
165	bh	1068
166			def test_unreferenced_tables(self):
167			"""Test Session.UnreferencedTables()"""
168			self.assertEquals(self.session.UnreferencedTables(),
169			[self.memtable, self.roads_line, self.landmarks])
170
171			def test_unreferenced_tables_with_joins(self):
172			"""Test Session.UnreferencedTables() with joins"""
173			joined = TransientJoinedTable(self.session.TransientDB(),
174			self.landmarks, "CLPTLABEL",
175			self.memtable, "type", outer_join = True)
176			try:
177			joined = self.session.AddTable(joined)
178			# After the join, landmarks and memtable are referenced by
179			# joined which in turn is referenced by nothing
180			self.assertEquals(self.session.UnreferencedTables(),
181			[self.roads_line, joined])
182			# Creating a DerivedShapeStore that references the joined table
183			# will remove it from the list of unreferenced tables,
184	jonathan	1266	store = self.session.OpenShapefile(
185			os.path.join("..", "Data", "iceland",
186			"cultural_landmark-point.dbf"))
187	bh	1068	derived = DerivedShapeStore(store, joined)
188			self.session.AddShapeStore(derived)
189			self.assertEquals(self.session.UnreferencedTables(),
190			[self.roads_line])
191			finally:
192			joined = derived = store = None
193
194	bh	334	class TestSessionBase(unittest.TestCase, support.SubscriberMixin):
195
196			"""Base class for Session test cases that test the messages"""
197
198			def setUp(self):
199			"""
200			Clear the message list, create a session and subscribe to its messages
201
202			Bind the session to self.session.
203			"""
204			self.clear_messages()
205
206			# Create a Session and subscribe to all interesting channels.
207			self.session = Session("Test Session")
208	bh	1068	for channel in (CHANGED,
209			MAPS_CHANGED,
210	jonathan	584	FILENAME_CHANGED,
211	bh	1068	MAP_PROJECTION_CHANGED,
212	jonathan	584	MAP_LAYERS_CHANGED,
213	bh	1068	LAYER_VISIBILITY_CHANGED,
214			LAYER_CHANGED,
215			TABLE_REMOVED):
216	bh	334	self.session.Subscribe(channel,
217			self.subscribe_with_params, channel)
218
219			def tearDown(self):
220			"""Destroy self.session and clear the message list"""
221			self.session.Destroy()
222	bh	723	self.session = None
223	bh	334	self.clear_messages()
224
225
226			class TestSessionMessages(TestSessionBase):
227
228			"""Simple Session test cases that test messges"""
229
230			def test_add_map(self):
231			"""Test Session.AddMap"""
232			self.failIf(self.session.WasModified())
233			map = Map("Some Map")
234			self.session.AddMap(map)
235			self.assert_(self.session.HasMaps())
236			self.assert_(self.session.WasModified())
237			self.assertEquals(self.session.Maps(), [map])
238			self.check_messages([(MAPS_CHANGED,),
239			(self.session, CHANGED)])
240
241			def test_set_filename(self):
242			"""Test Session.SetFilename"""
243			self.session.SetFilename("session_set_filename_test")
244			self.session.filename = "session_set_filename_test"
245			self.check_messages([(FILENAME_CHANGED,),
246			(self.session, CHANGED)])
247
248	bh	1068	def test_remove_table(self):
249			"""Test Session.RemoveTable()"""
250			memtable = MemoryTable([("type", FIELDTYPE_STRING),
251			("value", FIELDTYPE_DOUBLE),
252			("code", FIELDTYPE_INT)],
253			[("OTHER/UNKNOWN", -1.5, 11),
254			("RUINS", 0.0, 1),
255			("FARM", 3.141, 2),
256			("BUILDING", 2.5, 3),
257			("HUT", 1e6, 4),
258			("LIGHTHOUSE", -0.01, 5)])
259			table = self.session.AddTable(memtable)
260			self.assertEquals(self.session.Tables(), [table])
261			self.clear_messages()
262			self.session.RemoveTable(table)
263			self.check_messages([(table, TABLE_REMOVED),
264			(self.session, CHANGED)])
265			self.assertEquals(self.session.Tables(), [])
266			self.assertRaises(ValueError, self.session.RemoveTable, table)
267	bh	334
268	bh	1068
269	bh	334	class TestSessionWithContent(TestSessionBase):
270
271			"""Session test cases that start with a filled session."""
272
273			def setUp(self):
274			"""Extend the inherited method to add a non-empty map to self.session
275			"""
276			TestSessionBase.setUp(self)
277	bh	723	open_shp = self.session.OpenShapefile
278	bh	334	self.arc_layer = Layer("Roads",
279	bh	723	open_shp(os.path.join("..", "Data", "iceland",
280			"roads-line.shp")))
281	bh	334	self.poly_layer = Layer("Political",
282	bh	723	open_shp(os.path.join("..", "Data", "iceland",
283			"political.shp")))
284	bh	334	self.map = Map("A Map")
285			self.map.AddLayer(self.arc_layer)
286			self.map.AddLayer(self.poly_layer)
287			self.session.AddMap(self.map)
288			self.session.UnsetModified()
289			self.clear_messages()
290
291	bh	723	def tearDown(self):
292			TestSessionBase.tearDown(self)
293			self.arc_layer = self.poly_layer = None
294
295	bh	334	def test_remove_map(self):
296			"""Test Session.RemoveMap"""
297			self.session.RemoveMap(self.map)
298			self.assert_(self.session.WasModified())
299			self.failIf(self.session.HasMaps())
300			self.check_messages([(MAPS_CHANGED,),
301			(self.session, CHANGED)])
302
303			def test_tree_info(self):
304			"""Test Session.TreeInfo"""
305			self.assertEquals(self.session.TreeInfo(),
306			('Session: Test Session',
307			['Filename:',
308			'Unmodified',
309			self.map]))
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.check_messages([(self.map, MAP_PROJECTION_CHANGED),
316			(self.session, CHANGED)])
317			self.assert_(self.session.WasModified())
318
319			def test_forward_map_projection(self):
320			"""Test Session forwarding of Map.SetProjection messages"""
321			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
322			self.map.SetProjection(proj)
323			self.assert_(self.session.WasModified())
324	jonathan	1401	self.check_messages([(self.map, None, MAP_PROJECTION_CHANGED),
325	bh	334	(self.session, CHANGED)])
326
327			def test_forwarding_fill(self):
328			"""Test Session's forwarding of Layer.SetFill messages"""
329	jonathan	409	self.poly_layer.GetClassification().SetDefaultFill(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(self):
335			"""Test Session's forwarding of Layer.SetStroke messages"""
336	jonathan	409	self.poly_layer.GetClassification().\
337	jonathan	482	SetDefaultLineColor(Color(0.0, 0.5, 1.0))
338	bh	334	self.assert_(self.session.WasModified())
339	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
340	bh	334	(self.session, CHANGED)])
341
342			def test_forwarding_stroke_width(self):
343			"""Test Session's forwarding of Layer.SetStrokeWidth messages"""
344	jonathan	482	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
345	bh	334	self.assert_(self.session.WasModified())
346	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
347	bh	334	(self.session, CHANGED)])
348
349			def test_forwarding_visibility(self):
350			"""Test Session's forwarding of Layer.SetVisible messages"""
351			self.poly_layer.SetVisible(0)
352			# Currently changing the visibility of a layer doesn't change
353			# the modification flag.
354			self.failIf(self.session.WasModified())
355			self.check_messages([(self.poly_layer, LAYER_VISIBILITY_CHANGED),
356			(self.session, CHANGED)])
357
358			def test_unset_modified_map(self):
359			"""Test Session.UnsetModified with map level changes"""
360			self.failIf(self.session.WasModified())
361			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
362			self.map.SetProjection(proj)
363			self.assert_(self.session.WasModified())
364			self.session.UnsetModified()
365			self.failIf(self.session.WasModified())
366
367			def test_unset_modified_layer(self):
368			"""Test Session.UnsetModified with layer level changes"""
369			self.failIf(self.session.WasModified())
370	jonathan	482	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
371	bh	334	self.assert_(self.session.WasModified())
372			self.session.UnsetModified()
373			self.failIf(self.session.WasModified())
374	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
375	bh	334	(self.session, CHANGED),
376			(CHANGED,)])
377
378	bh	851	def test_shape_stores(self):
379			"""Test Session.ShapeStores()"""
380			# Strictly speaking the session doesn't make guarantees about
381			# the order of the ShapeStores in the list, but currently it's
382			# deterministic and they're listed in the order in which they
383			# were created
384			self.assertEquals(self.session.ShapeStores(),
385			[self.arc_layer.ShapeStore(),
386			self.poly_layer.ShapeStore()])
387			# If we remove the map from the session and clear our instance
388			# variables that hold the layers and the map the list should
389			# become empty again.
390			self.session.RemoveMap(self.map)
391			self.arc_layer = self.poly_layer = self.map = None
392			self.assertEquals(self.session.ShapeStores(), [])
393	bh	334
394	bh	851	def test_tables(self):
395			"""Test Session.Tables()"""
396			# Strictly speaking the session doesn't make guarantees about
397			# the order of the tables in the list, but currently it's
398			# deterministic and they're listed in the order in which they
399			# were opened
400			self.assertEquals(self.session.Tables(),
401			[self.arc_layer.ShapeStore().Table(),
402			self.poly_layer.ShapeStore().Table()])
403			# If we remove the map from the session and clear our instance
404			# variables that hold the layers and the map the list should
405			# become empty again.
406			self.session.RemoveMap(self.map)
407			self.arc_layer = self.poly_layer = self.map = None
408			self.assertEquals(self.session.Tables(), [])
409
410
411	bh	334	if __name__ == "__main__":
412			unittest.main()
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