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 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_remove_table(self):
        """Test Session.RemoveTable()"""
        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])
        session.RemoveTable(table)
        self.assertEquals(session.Tables(), [])
        self.assertRaises(ValueError, session.RemoveTable, 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()])


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	bh	984	def setUp(self):
38			"""Initialize self.session to None"""
39			self.session = None
40
41			def tearDown(self):
42			"""Call self.session.Destroy() and reset self.session to None"""
43			self.session.Destroy()
44			self.session = None
45
46	bh	334	def test_initial_state(self):
47			"""Test Session's initial state"""
48	bh	984	session = self.session = Session("Test Session")
49	bh	334	self.assertEquals(session.Title(), "Test Session")
50			self.assertEquals(session.Maps(), [])
51	bh	851	self.assertEquals(session.Tables(), [])
52			self.assertEquals(session.ShapeStores(), [])
53	bh	334	self.assertEquals(session.filename, None)
54			self.failIf(session.HasMaps())
55			self.failIf(session.WasModified())
56
57	bh	982	def test_add_table(self):
58			"""Test Session.AddTable()"""
59	bh	984	session = self.session = Session("Test Session")
60	bh	982	memtable = MemoryTable([("type", FIELDTYPE_STRING),
61			("value", FIELDTYPE_DOUBLE),
62			("code", FIELDTYPE_INT)],
63			[("OTHER/UNKNOWN", -1.5, 11),
64			("RUINS", 0.0, 1),
65			("FARM", 3.141, 2),
66			("BUILDING", 2.5, 3),
67			("HUT", 1e6, 4),
68			("LIGHTHOUSE", -0.01, 5)])
69			table = session.AddTable(memtable)
70			self.assertEquals(session.Tables(), [table])
71	bh	334
72	bh	987	def test_remove_table(self):
73			"""Test Session.RemoveTable()"""
74			session = self.session = Session("Test Session")
75			memtable = MemoryTable([("type", FIELDTYPE_STRING),
76			("value", FIELDTYPE_DOUBLE),
77			("code", FIELDTYPE_INT)],
78			[("OTHER/UNKNOWN", -1.5, 11),
79			("RUINS", 0.0, 1),
80			("FARM", 3.141, 2),
81			("BUILDING", 2.5, 3),
82			("HUT", 1e6, 4),
83			("LIGHTHOUSE", -0.01, 5)])
84			table = session.AddTable(memtable)
85			self.assertEquals(session.Tables(), [table])
86			session.RemoveTable(table)
87			self.assertEquals(session.Tables(), [])
88			self.assertRaises(ValueError, session.RemoveTable, table)
89
90	bh	984	def test_open_shapefile(self):
91			"""Test Session.OpenShapefile()"""
92			session = self.session = Session("Test Session")
93			filename = os.path.join("..", "Data", "iceland",
94			"roads-line.shp")
95			store = session.OpenShapefile(filename)
96			self.assertEquals(store.FileName(), os.path.abspath(filename))
97			# The filetype of a shapefile is "shapefile"
98			self.assertEquals(store.FileType(), "shapefile")
99			# The shapestore itself depends on nothing else
100			self.assertEquals(store.Dependencies(), ())
101			# The shapestore's table depends on the shapestore
102			self.assertEquals(store.Table().Dependencies(), (store,))
103	bh	982
104	bh	984	self.assertEquals(session.Tables(), [store.Table()])
105
106
107	bh	334	class TestSessionBase(unittest.TestCase, support.SubscriberMixin):
108
109			"""Base class for Session test cases that test the messages"""
110
111			def setUp(self):
112			"""
113			Clear the message list, create a session and subscribe to its messages
114
115			Bind the session to self.session.
116			"""
117			self.clear_messages()
118
119			# Create a Session and subscribe to all interesting channels.
120			self.session = Session("Test Session")
121	jonathan	584	for channel in (CHANGED,
122			MAPS_CHANGED,
123			FILENAME_CHANGED,
124			MAP_PROJECTION_CHANGED,
125			MAP_LAYERS_CHANGED,
126			LAYER_VISIBILITY_CHANGED,
127			LAYER_CHANGED):
128	bh	334	self.session.Subscribe(channel,
129			self.subscribe_with_params, channel)
130
131			def tearDown(self):
132			"""Destroy self.session and clear the message list"""
133			self.session.Destroy()
134	bh	723	self.session = None
135	bh	334	self.clear_messages()
136
137
138			class TestSessionMessages(TestSessionBase):
139
140			"""Simple Session test cases that test messges"""
141
142			def test_add_map(self):
143			"""Test Session.AddMap"""
144			self.failIf(self.session.WasModified())
145			map = Map("Some Map")
146			self.session.AddMap(map)
147			self.assert_(self.session.HasMaps())
148			self.assert_(self.session.WasModified())
149			self.assertEquals(self.session.Maps(), [map])
150			self.check_messages([(MAPS_CHANGED,),
151			(self.session, CHANGED)])
152
153			def test_set_filename(self):
154			"""Test Session.SetFilename"""
155			self.session.SetFilename("session_set_filename_test")
156			self.session.filename = "session_set_filename_test"
157			self.check_messages([(FILENAME_CHANGED,),
158			(self.session, CHANGED)])
159
160
161			class TestSessionWithContent(TestSessionBase):
162
163			"""Session test cases that start with a filled session."""
164
165			def setUp(self):
166			"""Extend the inherited method to add a non-empty map to self.session
167			"""
168			TestSessionBase.setUp(self)
169	bh	723	open_shp = self.session.OpenShapefile
170	bh	334	self.arc_layer = Layer("Roads",
171	bh	723	open_shp(os.path.join("..", "Data", "iceland",
172			"roads-line.shp")))
173	bh	334	self.poly_layer = Layer("Political",
174	bh	723	open_shp(os.path.join("..", "Data", "iceland",
175			"political.shp")))
176	bh	334	self.map = Map("A Map")
177			self.map.AddLayer(self.arc_layer)
178			self.map.AddLayer(self.poly_layer)
179			self.session.AddMap(self.map)
180			self.session.UnsetModified()
181			self.clear_messages()
182
183	bh	723	def tearDown(self):
184			TestSessionBase.tearDown(self)
185			self.arc_layer = self.poly_layer = None
186
187	bh	334	def test_remove_map(self):
188			"""Test Session.RemoveMap"""
189			self.session.RemoveMap(self.map)
190			self.assert_(self.session.WasModified())
191			self.failIf(self.session.HasMaps())
192			self.check_messages([(MAPS_CHANGED,),
193			(self.session, CHANGED)])
194
195			def test_tree_info(self):
196			"""Test Session.TreeInfo"""
197			self.assertEquals(self.session.TreeInfo(),
198			('Session: Test Session',
199			['Filename:',
200			'Unmodified',
201			self.map]))
202
203			def test_forward_map_projection(self):
204			"""Test Session forwarding of Map.SetProjection messages"""
205			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
206			self.map.SetProjection(proj)
207			self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
208			(self.session, CHANGED)])
209			self.assert_(self.session.WasModified())
210
211			def test_forward_map_projection(self):
212			"""Test Session forwarding of Map.SetProjection messages"""
213			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
214			self.map.SetProjection(proj)
215			self.assert_(self.session.WasModified())
216			self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
217			(self.session, CHANGED)])
218
219			def test_forwarding_fill(self):
220			"""Test Session's forwarding of Layer.SetFill messages"""
221	jonathan	409	self.poly_layer.GetClassification().SetDefaultFill(Color(0.0, 0.5, 1.0))
222	bh	334	self.assert_(self.session.WasModified())
223	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
224	bh	334	(self.session, CHANGED)])
225
226			def test_forwarding_stroke(self):
227			"""Test Session's forwarding of Layer.SetStroke messages"""
228	jonathan	409	self.poly_layer.GetClassification().\
229	jonathan	482	SetDefaultLineColor(Color(0.0, 0.5, 1.0))
230	bh	334	self.assert_(self.session.WasModified())
231	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
232	bh	334	(self.session, CHANGED)])
233
234			def test_forwarding_stroke_width(self):
235			"""Test Session's forwarding of Layer.SetStrokeWidth messages"""
236	jonathan	482	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
237	bh	334	self.assert_(self.session.WasModified())
238	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
239	bh	334	(self.session, CHANGED)])
240
241			def test_forwarding_visibility(self):
242			"""Test Session's forwarding of Layer.SetVisible messages"""
243			self.poly_layer.SetVisible(0)
244			# Currently changing the visibility of a layer doesn't change
245			# the modification flag.
246			self.failIf(self.session.WasModified())
247			self.check_messages([(self.poly_layer, LAYER_VISIBILITY_CHANGED),
248			(self.session, CHANGED)])
249
250			def test_unset_modified_map(self):
251			"""Test Session.UnsetModified with map level changes"""
252			self.failIf(self.session.WasModified())
253			proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
254			self.map.SetProjection(proj)
255			self.assert_(self.session.WasModified())
256			self.session.UnsetModified()
257			self.failIf(self.session.WasModified())
258
259			def test_unset_modified_layer(self):
260			"""Test Session.UnsetModified with layer level changes"""
261			self.failIf(self.session.WasModified())
262	jonathan	482	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
263	bh	334	self.assert_(self.session.WasModified())
264			self.session.UnsetModified()
265			self.failIf(self.session.WasModified())
266	jonathan	584	self.check_messages([(self.poly_layer, LAYER_CHANGED),
267	bh	334	(self.session, CHANGED),
268			(CHANGED,)])
269
270	bh	851	def test_shape_stores(self):
271			"""Test Session.ShapeStores()"""
272			# Strictly speaking the session doesn't make guarantees about
273			# the order of the ShapeStores in the list, but currently it's
274			# deterministic and they're listed in the order in which they
275			# were created
276			self.assertEquals(self.session.ShapeStores(),
277			[self.arc_layer.ShapeStore(),
278			self.poly_layer.ShapeStore()])
279			# If we remove the map from the session and clear our instance
280			# variables that hold the layers and the map the list should
281			# become empty again.
282			self.session.RemoveMap(self.map)
283			self.arc_layer = self.poly_layer = self.map = None
284			self.assertEquals(self.session.ShapeStores(), [])
285	bh	334
286	bh	851	def test_tables(self):
287			"""Test Session.Tables()"""
288			# Strictly speaking the session doesn't make guarantees about
289			# the order of the tables in the list, but currently it's
290			# deterministic and they're listed in the order in which they
291			# were opened
292			self.assertEquals(self.session.Tables(),
293			[self.arc_layer.ShapeStore().Table(),
294			self.poly_layer.ShapeStore().Table()])
295			# If we remove the map from the session and clear our instance
296			# variables that hold the layers and the map the list should
297			# become empty again.
298			self.session.RemoveMap(self.map)
299			self.arc_layer = self.poly_layer = self.map = None
300			self.assertEquals(self.session.Tables(), [])
301
302
303	bh	334	if __name__ == "__main__":
304			unittest.main()
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