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.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	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			self.session = self.memtable = self.roads_line = self.landmarks = None
163
164			def test_unreferenced_tables(self):
165			"""Test Session.UnreferencedTables()"""
166			self.assertEquals(self.session.UnreferencedTables(),
167			[self.memtable, self.roads_line, self.landmarks])
168
169			def test_unreferenced_tables_with_joins(self):
170			"""Test Session.UnreferencedTables() with joins"""
171			joined = TransientJoinedTable(self.session.TransientDB(),
172			self.landmarks, "CLPTLABEL",
173			self.memtable, "type", outer_join = True)
174			try:
175			joined = self.session.AddTable(joined)
176			# After the join, landmarks and memtable are referenced by
177			# joined which in turn is referenced by nothing
178			self.assertEquals(self.session.UnreferencedTables(),
179			[self.roads_line, joined])
180			# Creating a DerivedShapeStore that references the joined table
181			# will remove it from the list of unreferenced tables,
182			store = self.session.OpenShapefile(os.path.join("..", "Data",
183			"iceland",
184			"political.dbf"))
185			derived = DerivedShapeStore(store, joined)
186			self.session.AddShapeStore(derived)
187			self.assertEquals(self.session.UnreferencedTables(),
188			[self.roads_line])
189			finally:
190			joined = derived = store = None
191
192	bh	334	class TestSessionBase(unittest.TestCase, support.SubscriberMixin):
193
194			"""Base class for Session test cases that test the messages"""
195
196			def setUp(self):
197			"""
198			Clear the message list, create a session and subscribe to its messages
199
200			Bind the session to self.session.
201			"""
202			self.clear_messages()
203
204			# Create a Session and subscribe to all interesting channels.
205			self.session = Session("Test Session")
206	bh	1068	for channel in (CHANGED,
207			MAPS_CHANGED,
208	jonathan	584	FILENAME_CHANGED,
209	bh	1068	MAP_PROJECTION_CHANGED,
210	jonathan	584	MAP_LAYERS_CHANGED,
211	bh	1068	LAYER_VISIBILITY_CHANGED,
212			LAYER_CHANGED,
213			TABLE_REMOVED):
214	bh	334	self.session.Subscribe(channel,
215			self.subscribe_with_params, channel)
216
217			def tearDown(self):
218			"""Destroy self.session and clear the message list"""
219			self.session.Destroy()
220	bh	723	self.session = None
221	bh	334	self.clear_messages()
222
223
224			class TestSessionMessages(TestSessionBase):
225
226			"""Simple Session test cases that test messges"""
227
228			def test_add_map(self):
229			"""Test Session.AddMap"""
230			self.failIf(self.session.WasModified())
231			map = Map("Some Map")
232			self.session.AddMap(map)
233			self.assert_(self.session.HasMaps())
234			self.assert_(self.session.WasModified())
235			self.assertEquals(self.session.Maps(), [map])
236			self.check_messages([(MAPS_CHANGED,),
237			(self.session, CHANGED)])
238
239			def test_set_filename(self):
240			"""Test Session.SetFilename"""
241			self.session.SetFilename("session_set_filename_test")
242			self.session.filename = "session_set_filename_test"
243			self.check_messages([(FILENAME_CHANGED,),
244			(self.session, CHANGED)])
245
246	bh	1068	def test_remove_table(self):
247			"""Test Session.RemoveTable()"""
248			memtable = MemoryTable([("type", FIELDTYPE_STRING),
249			("value", FIELDTYPE_DOUBLE),
250			("code", FIELDTYPE_INT)],
251			[("OTHER/UNKNOWN", -1.5, 11),
252			("RUINS", 0.0, 1),
253			("FARM", 3.141, 2),
254			("BUILDING", 2.5, 3),
255			("HUT", 1e6, 4),
256			("LIGHTHOUSE", -0.01, 5)])
257			table = self.session.AddTable(memtable)
258			self.assertEquals(self.session.Tables(), [table])
259			self.clear_messages()
260			self.session.RemoveTable(table)
261			self.check_messages([(table, TABLE_REMOVED),
262			(self.session, CHANGED)])
263			self.assertEquals(self.session.Tables(), [])
264			self.assertRaises(ValueError, self.session.RemoveTable, table)
265	bh	334
266	bh	1068
267	bh	334	class TestSessionWithContent(TestSessionBase):
268
269			"""Session test cases that start with a filled session."""
270
271			def setUp(self):
272			"""Extend the inherited method to add a non-empty map to self.session
273			"""
274			TestSessionBase.setUp(self)
275	bh	723	open_shp = self.session.OpenShapefile
276	bh	334	self.arc_layer = Layer("Roads",
277	bh	723	open_shp(os.path.join("..", "Data", "iceland",
278			"roads-line.shp")))
279	bh	334	self.poly_layer = Layer("Political",
280	bh	723	open_shp(os.path.join("..", "Data", "iceland",
281			"political.shp")))
282	bh	334	self.map = Map("A Map")
283			self.map.AddLayer(self.arc_layer)
284			self.map.AddLayer(self.poly_layer)
285			self.session.AddMap(self.map)
286			self.session.UnsetModified()
287			self.clear_messages()
288
289	bh	723	def tearDown(self):
290			TestSessionBase.tearDown(self)
291			self.arc_layer = self.poly_layer = None
292
293	bh	334	def test_remove_map(self):
294			"""Test Session.RemoveMap"""
295			self.session.RemoveMap(self.map)
296			self.assert_(self.session.WasModified())
297			self.failIf(self.session.HasMaps())
298			self.check_messages([(MAPS_CHANGED,),
299			(self.session, CHANGED)])
300
301			def test_tree_info(self):
302			"""Test Session.TreeInfo"""
303			self.assertEquals(self.session.TreeInfo(),
304			('Session: Test Session',
305			['Filename:',
306			'Unmodified',
307			self.map]))
308
309			def test_forward_map_projection(self):
310			"""Test Session forwarding of Map.SetProjection messages"""
311			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
312			self.map.SetProjection(proj)
313			self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
314			(self.session, CHANGED)])
315			self.assert_(self.session.WasModified())
316
317			def test_forward_map_projection(self):
318			"""Test Session forwarding of Map.SetProjection messages"""
319			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
320			self.map.SetProjection(proj)
321			self.assert_(self.session.WasModified())
322			self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
323			(self.session, CHANGED)])
324
325			def test_forwarding_fill(self):
326			"""Test Session's forwarding of Layer.SetFill messages"""
327	jonathan	409	self.poly_layer.GetClassification().SetDefaultFill(Color(0.0, 0.5, 1.0))
328	bh	334	self.assert_(self.session.WasModified())
329	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
330	bh	334	(self.session, CHANGED)])
331
332			def test_forwarding_stroke(self):
333			"""Test Session's forwarding of Layer.SetStroke messages"""
334	jonathan	409	self.poly_layer.GetClassification().\
335	jonathan	482	SetDefaultLineColor(Color(0.0, 0.5, 1.0))
336	bh	334	self.assert_(self.session.WasModified())
337	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
338	bh	334	(self.session, CHANGED)])
339
340			def test_forwarding_stroke_width(self):
341			"""Test Session's forwarding of Layer.SetStrokeWidth messages"""
342	jonathan	482	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
343	bh	334	self.assert_(self.session.WasModified())
344	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
345	bh	334	(self.session, CHANGED)])
346
347			def test_forwarding_visibility(self):
348			"""Test Session's forwarding of Layer.SetVisible messages"""
349			self.poly_layer.SetVisible(0)
350			# Currently changing the visibility of a layer doesn't change
351			# the modification flag.
352			self.failIf(self.session.WasModified())
353			self.check_messages([(self.poly_layer, LAYER_VISIBILITY_CHANGED),
354			(self.session, CHANGED)])
355
356			def test_unset_modified_map(self):
357			"""Test Session.UnsetModified with map level changes"""
358			self.failIf(self.session.WasModified())
359			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
360			self.map.SetProjection(proj)
361			self.assert_(self.session.WasModified())
362			self.session.UnsetModified()
363			self.failIf(self.session.WasModified())
364
365			def test_unset_modified_layer(self):
366			"""Test Session.UnsetModified with layer level changes"""
367			self.failIf(self.session.WasModified())
368	jonathan	482	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
369	bh	334	self.assert_(self.session.WasModified())
370			self.session.UnsetModified()
371			self.failIf(self.session.WasModified())
372	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
373	bh	334	(self.session, CHANGED),
374			(CHANGED,)])
375
376	bh	851	def test_shape_stores(self):
377			"""Test Session.ShapeStores()"""
378			# Strictly speaking the session doesn't make guarantees about
379			# the order of the ShapeStores in the list, but currently it's
380			# deterministic and they're listed in the order in which they
381			# were created
382			self.assertEquals(self.session.ShapeStores(),
383			[self.arc_layer.ShapeStore(),
384			self.poly_layer.ShapeStore()])
385			# If we remove the map from the session and clear our instance
386			# variables that hold the layers and the map the list should
387			# become empty again.
388			self.session.RemoveMap(self.map)
389			self.arc_layer = self.poly_layer = self.map = None
390			self.assertEquals(self.session.ShapeStores(), [])
391	bh	334
392	bh	851	def test_tables(self):
393			"""Test Session.Tables()"""
394			# Strictly speaking the session doesn't make guarantees about
395			# the order of the tables in the list, but currently it's
396			# deterministic and they're listed in the order in which they
397			# were opened
398			self.assertEquals(self.session.Tables(),
399			[self.arc_layer.ShapeStore().Table(),
400			self.poly_layer.ShapeStore().Table()])
401			# If we remove the map from the session and clear our instance
402			# variables that hold the layers and the map the list should
403			# become empty again.
404			self.session.RemoveMap(self.map)
405			self.arc_layer = self.poly_layer = self.map = None
406			self.assertEquals(self.session.Tables(), [])
407
408
409	bh	334	if __name__ == "__main__":
410			unittest.main()
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