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	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
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	bh	851	self.assertEquals(session.Tables(), [])
42			self.assertEquals(session.ShapeStores(), [])
43	bh	334	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	jonathan	584	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	bh	334	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	bh	723	self.session = None
77	bh	334	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	bh	723	open_shp = self.session.OpenShapefile
112	bh	334	self.arc_layer = Layer("Roads",
113	bh	723	open_shp(os.path.join("..", "Data", "iceland",
114			"roads-line.shp")))
115	bh	334	self.poly_layer = Layer("Political",
116	bh	723	open_shp(os.path.join("..", "Data", "iceland",
117			"political.shp")))
118	bh	334	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	bh	723	def tearDown(self):
126			TestSessionBase.tearDown(self)
127			self.arc_layer = self.poly_layer = None
128
129	bh	334	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	jonathan	409	self.poly_layer.GetClassification().SetDefaultFill(Color(0.0, 0.5, 1.0))
164	bh	334	self.assert_(self.session.WasModified())
165	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
166	bh	334	(self.session, CHANGED)])
167
168			def test_forwarding_stroke(self):
169			"""Test Session's forwarding of Layer.SetStroke messages"""
170	jonathan	409	self.poly_layer.GetClassification().\
171	jonathan	482	SetDefaultLineColor(Color(0.0, 0.5, 1.0))
172	bh	334	self.assert_(self.session.WasModified())
173	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
174	bh	334	(self.session, CHANGED)])
175
176			def test_forwarding_stroke_width(self):
177			"""Test Session's forwarding of Layer.SetStrokeWidth messages"""
178	jonathan	482	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
179	bh	334	self.assert_(self.session.WasModified())
180	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
181	bh	334	(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	jonathan	482	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
205	bh	334	self.assert_(self.session.WasModified())
206			self.session.UnsetModified()
207			self.failIf(self.session.WasModified())
208	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
209	bh	334	(self.session, CHANGED),
210			(CHANGED,)])
211
212	bh	851	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	bh	334
228	bh	851	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	bh	334	if __name__ == "__main__":
246			unittest.main()
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