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	# 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 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	MAP_PROJECTION_CHANGED, MAP_LAYERS_CHANGED, \
24	LAYER_VISIBILITY_CHANGED, LAYER_CHANGED, TABLE_REMOVED
25	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	from Thuban.Model.table import MemoryTable, FIELDTYPE_STRING, \
31	FIELDTYPE_INT, FIELDTYPE_DOUBLE
32	from Thuban.Model.data import DerivedShapeStore
33	from Thuban.Model.transientdb import TransientJoinedTable
34
35	class TestSessionSimple(unittest.TestCase):
36
37	"""Very simple test cases for Session"""
38
39	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	def test_initial_state(self):
49	"""Test Session's initial state"""
50	session = self.session = Session("Test Session")
51	self.assertEquals(session.Title(), "Test Session")
52	self.assertEquals(session.Maps(), [])
53	self.assertEquals(session.Tables(), [])
54	self.assertEquals(session.ShapeStores(), [])
55	self.assertEquals(session.filename, None)
56	self.failIf(session.HasMaps())
57	self.failIf(session.WasModified())
58
59	def test_add_table(self):
60	"""Test Session.AddTable()"""
61	session = self.session = Session("Test Session")
62	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
74	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	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
96	self.assertEquals(session.Tables(), [store.Table()])
97
98	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
111
112	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	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	for channel in (CHANGED,
201	MAPS_CHANGED,
202	FILENAME_CHANGED,
203	MAP_PROJECTION_CHANGED,
204	MAP_LAYERS_CHANGED,
205	LAYER_VISIBILITY_CHANGED,
206	LAYER_CHANGED,
207	TABLE_REMOVED):
208	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	self.session = None
215	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	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
260
261	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	open_shp = self.session.OpenShapefile
270	self.arc_layer = Layer("Roads",
271	open_shp(os.path.join("..", "Data", "iceland",
272	"roads-line.shp")))
273	self.poly_layer = Layer("Political",
274	open_shp(os.path.join("..", "Data", "iceland",
275	"political.shp")))
276	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	def tearDown(self):
284	TestSessionBase.tearDown(self)
285	self.arc_layer = self.poly_layer = None
286
287	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	self.poly_layer.GetClassification().SetDefaultFill(Color(0.0, 0.5, 1.0))
322	self.assert_(self.session.WasModified())
323	self.check_messages([(self.poly_layer, LAYER_CHANGED),
324	(self.session, CHANGED)])
325
326	def test_forwarding_stroke(self):
327	"""Test Session's forwarding of Layer.SetStroke messages"""
328	self.poly_layer.GetClassification().\
329	SetDefaultLineColor(Color(0.0, 0.5, 1.0))
330	self.assert_(self.session.WasModified())
331	self.check_messages([(self.poly_layer, LAYER_CHANGED),
332	(self.session, CHANGED)])
333
334	def test_forwarding_stroke_width(self):
335	"""Test Session's forwarding of Layer.SetStrokeWidth messages"""
336	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
337	self.assert_(self.session.WasModified())
338	self.check_messages([(self.poly_layer, LAYER_CHANGED),
339	(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	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
363	self.assert_(self.session.WasModified())
364	self.session.UnsetModified()
365	self.failIf(self.session.WasModified())
366	self.check_messages([(self.poly_layer, LAYER_CHANGED),
367	(self.session, CHANGED),
368	(CHANGED,)])
369
370	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
386	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	if __name__ == "__main__":
404	unittest.main()
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