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


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()


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	# 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
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
31
32	class TestSessionSimple(unittest.TestCase):
33
34	"""Very simple test cases for Session"""
35
36	def test_initial_state(self):
37	"""Test Session's initial state"""
38	session = Session("Test Session")
39	self.assertEquals(session.Title(), "Test Session")
40	self.assertEquals(session.Maps(), [])
41	self.assertEquals(session.Tables(), [])
42	self.assertEquals(session.ShapeStores(), [])
43	self.assertEquals(session.filename, None)
44	self.failIf(session.HasMaps())
45	self.failIf(session.WasModified())
46	session.Destroy()
47
48
49	class TestSessionBase(unittest.TestCase, support.SubscriberMixin):
50
51	"""Base class for Session test cases that test the messages"""
52
53	def setUp(self):
54	"""
55	Clear the message list, create a session and subscribe to its messages
56
57	Bind the session to self.session.
58	"""
59	self.clear_messages()
60
61	# Create a Session and subscribe to all interesting channels.
62	self.session = Session("Test Session")
63	for channel in (CHANGED,
64	MAPS_CHANGED,
65	FILENAME_CHANGED,
66	MAP_PROJECTION_CHANGED,
67	MAP_LAYERS_CHANGED,
68	LAYER_VISIBILITY_CHANGED,
69	LAYER_CHANGED):
70	self.session.Subscribe(channel,
71	self.subscribe_with_params, channel)
72
73	def tearDown(self):
74	"""Destroy self.session and clear the message list"""
75	self.session.Destroy()
76	self.session = None
77	self.clear_messages()
78
79
80	class TestSessionMessages(TestSessionBase):
81
82	"""Simple Session test cases that test messges"""
83
84	def test_add_map(self):
85	"""Test Session.AddMap"""
86	self.failIf(self.session.WasModified())
87	map = Map("Some Map")
88	self.session.AddMap(map)
89	self.assert_(self.session.HasMaps())
90	self.assert_(self.session.WasModified())
91	self.assertEquals(self.session.Maps(), [map])
92	self.check_messages([(MAPS_CHANGED,),
93	(self.session, CHANGED)])
94
95	def test_set_filename(self):
96	"""Test Session.SetFilename"""
97	self.session.SetFilename("session_set_filename_test")
98	self.session.filename = "session_set_filename_test"
99	self.check_messages([(FILENAME_CHANGED,),
100	(self.session, CHANGED)])
101
102
103	class TestSessionWithContent(TestSessionBase):
104
105	"""Session test cases that start with a filled session."""
106
107	def setUp(self):
108	"""Extend the inherited method to add a non-empty map to self.session
109	"""
110	TestSessionBase.setUp(self)
111	open_shp = self.session.OpenShapefile
112	self.arc_layer = Layer("Roads",
113	open_shp(os.path.join("..", "Data", "iceland",
114	"roads-line.shp")))
115	self.poly_layer = Layer("Political",
116	open_shp(os.path.join("..", "Data", "iceland",
117	"political.shp")))
118	self.map = Map("A Map")
119	self.map.AddLayer(self.arc_layer)
120	self.map.AddLayer(self.poly_layer)
121	self.session.AddMap(self.map)
122	self.session.UnsetModified()
123	self.clear_messages()
124
125	def tearDown(self):
126	TestSessionBase.tearDown(self)
127	self.arc_layer = self.poly_layer = None
128
129	def test_remove_map(self):
130	"""Test Session.RemoveMap"""
131	self.session.RemoveMap(self.map)
132	self.assert_(self.session.WasModified())
133	self.failIf(self.session.HasMaps())
134	self.check_messages([(MAPS_CHANGED,),
135	(self.session, CHANGED)])
136
137	def test_tree_info(self):
138	"""Test Session.TreeInfo"""
139	self.assertEquals(self.session.TreeInfo(),
140	('Session: Test Session',
141	['Filename:',
142	'Unmodified',
143	self.map]))
144
145	def test_forward_map_projection(self):
146	"""Test Session forwarding of Map.SetProjection messages"""
147	proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
148	self.map.SetProjection(proj)
149	self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
150	(self.session, CHANGED)])
151	self.assert_(self.session.WasModified())
152
153	def test_forward_map_projection(self):
154	"""Test Session forwarding of Map.SetProjection messages"""
155	proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
156	self.map.SetProjection(proj)
157	self.assert_(self.session.WasModified())
158	self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
159	(self.session, CHANGED)])
160
161	def test_forwarding_fill(self):
162	"""Test Session's forwarding of Layer.SetFill messages"""
163	self.poly_layer.GetClassification().SetDefaultFill(Color(0.0, 0.5, 1.0))
164	self.assert_(self.session.WasModified())
165	self.check_messages([(self.poly_layer, LAYER_CHANGED),
166	(self.session, CHANGED)])
167
168	def test_forwarding_stroke(self):
169	"""Test Session's forwarding of Layer.SetStroke messages"""
170	self.poly_layer.GetClassification().\
171	SetDefaultLineColor(Color(0.0, 0.5, 1.0))
172	self.assert_(self.session.WasModified())
173	self.check_messages([(self.poly_layer, LAYER_CHANGED),
174	(self.session, CHANGED)])
175
176	def test_forwarding_stroke_width(self):
177	"""Test Session's forwarding of Layer.SetStrokeWidth messages"""
178	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
179	self.assert_(self.session.WasModified())
180	self.check_messages([(self.poly_layer, LAYER_CHANGED),
181	(self.session, CHANGED)])
182
183	def test_forwarding_visibility(self):
184	"""Test Session's forwarding of Layer.SetVisible messages"""
185	self.poly_layer.SetVisible(0)
186	# Currently changing the visibility of a layer doesn't change
187	# the modification flag.
188	self.failIf(self.session.WasModified())
189	self.check_messages([(self.poly_layer, LAYER_VISIBILITY_CHANGED),
190	(self.session, CHANGED)])
191
192	def test_unset_modified_map(self):
193	"""Test Session.UnsetModified with map level changes"""
194	self.failIf(self.session.WasModified())
195	proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
196	self.map.SetProjection(proj)
197	self.assert_(self.session.WasModified())
198	self.session.UnsetModified()
199	self.failIf(self.session.WasModified())
200
201	def test_unset_modified_layer(self):
202	"""Test Session.UnsetModified with layer level changes"""
203	self.failIf(self.session.WasModified())
204	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
205	self.assert_(self.session.WasModified())
206	self.session.UnsetModified()
207	self.failIf(self.session.WasModified())
208	self.check_messages([(self.poly_layer, LAYER_CHANGED),
209	(self.session, CHANGED),
210	(CHANGED,)])
211
212	def test_shape_stores(self):
213	"""Test Session.ShapeStores()"""
214	# Strictly speaking the session doesn't make guarantees about
215	# the order of the ShapeStores in the list, but currently it's
216	# deterministic and they're listed in the order in which they
217	# were created
218	self.assertEquals(self.session.ShapeStores(),
219	[self.arc_layer.ShapeStore(),
220	self.poly_layer.ShapeStore()])
221	# If we remove the map from the session and clear our instance
222	# variables that hold the layers and the map the list should
223	# become empty again.
224	self.session.RemoveMap(self.map)
225	self.arc_layer = self.poly_layer = self.map = None
226	self.assertEquals(self.session.ShapeStores(), [])
227
228	def test_tables(self):
229	"""Test Session.Tables()"""
230	# Strictly speaking the session doesn't make guarantees about
231	# the order of the tables in the list, but currently it's
232	# deterministic and they're listed in the order in which they
233	# were opened
234	self.assertEquals(self.session.Tables(),
235	[self.arc_layer.ShapeStore().Table(),
236	self.poly_layer.ShapeStore().Table()])
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.Tables(), [])
243
244
245	if __name__ == "__main__":
246	unittest.main()
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