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
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

class TestSessionSimple(unittest.TestCase):

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

    def test_initial_state(self):
        """Test Session's initial state"""
        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())
        session.Destroy()

    def test_add_table(self):
        """Test Session.AddTable()"""
        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])


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):
            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)])


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			LAYER_VISIBILITY_CHANGED, LAYER_CHANGED
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	334
33			class TestSessionSimple(unittest.TestCase):
34
35			"""Very simple test cases for Session"""
36
37			def test_initial_state(self):
38			"""Test Session's initial state"""
39			session = Session("Test Session")
40			self.assertEquals(session.Title(), "Test Session")
41			self.assertEquals(session.Maps(), [])
42	bh	851	self.assertEquals(session.Tables(), [])
43			self.assertEquals(session.ShapeStores(), [])
44	bh	334	self.assertEquals(session.filename, None)
45			self.failIf(session.HasMaps())
46			self.failIf(session.WasModified())
47			session.Destroy()
48
49	bh	982	def test_add_table(self):
50			"""Test Session.AddTable()"""
51			session = Session("Test Session")
52			memtable = MemoryTable([("type", FIELDTYPE_STRING),
53			("value", FIELDTYPE_DOUBLE),
54			("code", FIELDTYPE_INT)],
55			[("OTHER/UNKNOWN", -1.5, 11),
56			("RUINS", 0.0, 1),
57			("FARM", 3.141, 2),
58			("BUILDING", 2.5, 3),
59			("HUT", 1e6, 4),
60			("LIGHTHOUSE", -0.01, 5)])
61			table = session.AddTable(memtable)
62			self.assertEquals(session.Tables(), [table])
63	bh	334
64	bh	982
65	bh	334	class TestSessionBase(unittest.TestCase, support.SubscriberMixin):
66
67			"""Base class for Session test cases that test the messages"""
68
69			def setUp(self):
70			"""
71			Clear the message list, create a session and subscribe to its messages
72
73			Bind the session to self.session.
74			"""
75			self.clear_messages()
76
77			# Create a Session and subscribe to all interesting channels.
78			self.session = Session("Test Session")
79	jonathan	584	for channel in (CHANGED,
80			MAPS_CHANGED,
81			FILENAME_CHANGED,
82			MAP_PROJECTION_CHANGED,
83			MAP_LAYERS_CHANGED,
84			LAYER_VISIBILITY_CHANGED,
85			LAYER_CHANGED):
86	bh	334	self.session.Subscribe(channel,
87			self.subscribe_with_params, channel)
88
89			def tearDown(self):
90			"""Destroy self.session and clear the message list"""
91			self.session.Destroy()
92	bh	723	self.session = None
93	bh	334	self.clear_messages()
94
95
96			class TestSessionMessages(TestSessionBase):
97
98			"""Simple Session test cases that test messges"""
99
100			def test_add_map(self):
101			"""Test Session.AddMap"""
102			self.failIf(self.session.WasModified())
103			map = Map("Some Map")
104			self.session.AddMap(map)
105			self.assert_(self.session.HasMaps())
106			self.assert_(self.session.WasModified())
107			self.assertEquals(self.session.Maps(), [map])
108			self.check_messages([(MAPS_CHANGED,),
109			(self.session, CHANGED)])
110
111			def test_set_filename(self):
112			"""Test Session.SetFilename"""
113			self.session.SetFilename("session_set_filename_test")
114			self.session.filename = "session_set_filename_test"
115			self.check_messages([(FILENAME_CHANGED,),
116			(self.session, CHANGED)])
117
118
119			class TestSessionWithContent(TestSessionBase):
120
121			"""Session test cases that start with a filled session."""
122
123			def setUp(self):
124			"""Extend the inherited method to add a non-empty map to self.session
125			"""
126			TestSessionBase.setUp(self)
127	bh	723	open_shp = self.session.OpenShapefile
128	bh	334	self.arc_layer = Layer("Roads",
129	bh	723	open_shp(os.path.join("..", "Data", "iceland",
130			"roads-line.shp")))
131	bh	334	self.poly_layer = Layer("Political",
132	bh	723	open_shp(os.path.join("..", "Data", "iceland",
133			"political.shp")))
134	bh	334	self.map = Map("A Map")
135			self.map.AddLayer(self.arc_layer)
136			self.map.AddLayer(self.poly_layer)
137			self.session.AddMap(self.map)
138			self.session.UnsetModified()
139			self.clear_messages()
140
141	bh	723	def tearDown(self):
142			TestSessionBase.tearDown(self)
143			self.arc_layer = self.poly_layer = None
144
145	bh	334	def test_remove_map(self):
146			"""Test Session.RemoveMap"""
147			self.session.RemoveMap(self.map)
148			self.assert_(self.session.WasModified())
149			self.failIf(self.session.HasMaps())
150			self.check_messages([(MAPS_CHANGED,),
151			(self.session, CHANGED)])
152
153			def test_tree_info(self):
154			"""Test Session.TreeInfo"""
155			self.assertEquals(self.session.TreeInfo(),
156			('Session: Test Session',
157			['Filename:',
158			'Unmodified',
159			self.map]))
160
161			def test_forward_map_projection(self):
162			"""Test Session forwarding of Map.SetProjection messages"""
163			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
164			self.map.SetProjection(proj)
165			self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
166			(self.session, CHANGED)])
167			self.assert_(self.session.WasModified())
168
169			def test_forward_map_projection(self):
170			"""Test Session forwarding of Map.SetProjection messages"""
171			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
172			self.map.SetProjection(proj)
173			self.assert_(self.session.WasModified())
174			self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
175			(self.session, CHANGED)])
176
177			def test_forwarding_fill(self):
178			"""Test Session's forwarding of Layer.SetFill messages"""
179	jonathan	409	self.poly_layer.GetClassification().SetDefaultFill(Color(0.0, 0.5, 1.0))
180	bh	334	self.assert_(self.session.WasModified())
181	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
182	bh	334	(self.session, CHANGED)])
183
184			def test_forwarding_stroke(self):
185			"""Test Session's forwarding of Layer.SetStroke messages"""
186	jonathan	409	self.poly_layer.GetClassification().\
187	jonathan	482	SetDefaultLineColor(Color(0.0, 0.5, 1.0))
188	bh	334	self.assert_(self.session.WasModified())
189	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
190	bh	334	(self.session, CHANGED)])
191
192			def test_forwarding_stroke_width(self):
193			"""Test Session's forwarding of Layer.SetStrokeWidth messages"""
194	jonathan	482	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
195	bh	334	self.assert_(self.session.WasModified())
196	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
197	bh	334	(self.session, CHANGED)])
198
199			def test_forwarding_visibility(self):
200			"""Test Session's forwarding of Layer.SetVisible messages"""
201			self.poly_layer.SetVisible(0)
202			# Currently changing the visibility of a layer doesn't change
203			# the modification flag.
204			self.failIf(self.session.WasModified())
205			self.check_messages([(self.poly_layer, LAYER_VISIBILITY_CHANGED),
206			(self.session, CHANGED)])
207
208			def test_unset_modified_map(self):
209			"""Test Session.UnsetModified with map level changes"""
210			self.failIf(self.session.WasModified())
211			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
212			self.map.SetProjection(proj)
213			self.assert_(self.session.WasModified())
214			self.session.UnsetModified()
215			self.failIf(self.session.WasModified())
216
217			def test_unset_modified_layer(self):
218			"""Test Session.UnsetModified with layer level changes"""
219			self.failIf(self.session.WasModified())
220	jonathan	482	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
221	bh	334	self.assert_(self.session.WasModified())
222			self.session.UnsetModified()
223			self.failIf(self.session.WasModified())
224	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
225	bh	334	(self.session, CHANGED),
226			(CHANGED,)])
227
228	bh	851	def test_shape_stores(self):
229			"""Test Session.ShapeStores()"""
230			# Strictly speaking the session doesn't make guarantees about
231			# the order of the ShapeStores in the list, but currently it's
232			# deterministic and they're listed in the order in which they
233			# were created
234			self.assertEquals(self.session.ShapeStores(),
235			[self.arc_layer.ShapeStore(),
236			self.poly_layer.ShapeStore()])
237			# If we remove the map from the session and clear our instance
238			# variables that hold the layers and the map the list should
239			# become empty again.
240			self.session.RemoveMap(self.map)
241			self.arc_layer = self.poly_layer = self.map = None
242			self.assertEquals(self.session.ShapeStores(), [])
243	bh	334
244	bh	851	def test_tables(self):
245			"""Test Session.Tables()"""
246			# Strictly speaking the session doesn't make guarantees about
247			# the order of the tables in the list, but currently it's
248			# deterministic and they're listed in the order in which they
249			# were opened
250			self.assertEquals(self.session.Tables(),
251			[self.arc_layer.ShapeStore().Table(),
252			self.poly_layer.ShapeStore().Table()])
253			# If we remove the map from the session and clear our instance
254			# variables that hold the layers and the map the list should
255			# become empty again.
256			self.session.RemoveMap(self.map)
257			self.arc_layer = self.poly_layer = self.map = None
258			self.assertEquals(self.session.Tables(), [])
259
260
261	bh	334	if __name__ == "__main__":
262			unittest.main()
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