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
from Thuban.Model.data import DerivedShapeStore


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()])

    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


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	from Thuban.Model.table import MemoryTable, FIELDTYPE_STRING, \
31	FIELDTYPE_INT, FIELDTYPE_DOUBLE
32	from Thuban.Model.data import DerivedShapeStore
33
34
35	class TestSessionSimple(unittest.TestCase):
36
37	"""Very simple test cases for Session"""
38
39	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	def test_initial_state(self):
49	"""Test Session's initial state"""
50	session = self.session = Session("Test Session")
51	self.assertEquals(session.Title(), "Test Session")
52	self.assertEquals(session.Maps(), [])
53	self.assertEquals(session.Tables(), [])
54	self.assertEquals(session.ShapeStores(), [])
55	self.assertEquals(session.filename, None)
56	self.failIf(session.HasMaps())
57	self.failIf(session.WasModified())
58
59	def test_add_table(self):
60	"""Test Session.AddTable()"""
61	session = self.session = Session("Test Session")
62	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	table = session.AddTable(memtable)
72	self.assertEquals(session.Tables(), [table])
73
74	def test_remove_table(self):
75	"""Test Session.RemoveTable()"""
76	session = self.session = Session("Test Session")
77	memtable = MemoryTable([("type", FIELDTYPE_STRING),
78	("value", FIELDTYPE_DOUBLE),
79	("code", FIELDTYPE_INT)],
80	[("OTHER/UNKNOWN", -1.5, 11),
81	("RUINS", 0.0, 1),
82	("FARM", 3.141, 2),
83	("BUILDING", 2.5, 3),
84	("HUT", 1e6, 4),
85	("LIGHTHOUSE", -0.01, 5)])
86	table = session.AddTable(memtable)
87	self.assertEquals(session.Tables(), [table])
88	session.RemoveTable(table)
89	self.assertEquals(session.Tables(), [])
90	self.assertRaises(ValueError, session.RemoveTable, table)
91
92	def test_open_shapefile(self):
93	"""Test Session.OpenShapefile()"""
94	session = self.session = Session("Test Session")
95	filename = os.path.join("..", "Data", "iceland",
96	"roads-line.shp")
97	store = session.OpenShapefile(filename)
98	self.assertEquals(store.FileName(), os.path.abspath(filename))
99	# The filetype of a shapefile is "shapefile"
100	self.assertEquals(store.FileType(), "shapefile")
101	# The shapestore itself depends on nothing else
102	self.assertEquals(store.Dependencies(), ())
103	# The shapestore's table depends on the shapestore
104	self.assertEquals(store.Table().Dependencies(), (store,))
105
106	self.assertEquals(session.Tables(), [store.Table()])
107
108	def test_add_shapestore(self):
109	"""Test Session.AddShapeStore()"""
110	session = self.session = Session("Test Session")
111	filename = os.path.join("..", "Data", "iceland",
112	"roads-line.shp")
113	try:
114	store = session.OpenShapefile(filename)
115	derived = DerivedShapeStore(store, store.Table())
116	session.AddShapeStore(derived)
117	self.assertEquals(session.ShapeStores(), [store, derived])
118	finally:
119	store = derived = None
120
121
122	class TestSessionBase(unittest.TestCase, support.SubscriberMixin):
123
124	"""Base class for Session test cases that test the messages"""
125
126	def setUp(self):
127	"""
128	Clear the message list, create a session and subscribe to its messages
129
130	Bind the session to self.session.
131	"""
132	self.clear_messages()
133
134	# Create a Session and subscribe to all interesting channels.
135	self.session = Session("Test Session")
136	for channel in (CHANGED,
137	MAPS_CHANGED,
138	FILENAME_CHANGED,
139	MAP_PROJECTION_CHANGED,
140	MAP_LAYERS_CHANGED,
141	LAYER_VISIBILITY_CHANGED,
142	LAYER_CHANGED):
143	self.session.Subscribe(channel,
144	self.subscribe_with_params, channel)
145
146	def tearDown(self):
147	"""Destroy self.session and clear the message list"""
148	self.session.Destroy()
149	self.session = None
150	self.clear_messages()
151
152
153	class TestSessionMessages(TestSessionBase):
154
155	"""Simple Session test cases that test messges"""
156
157	def test_add_map(self):
158	"""Test Session.AddMap"""
159	self.failIf(self.session.WasModified())
160	map = Map("Some Map")
161	self.session.AddMap(map)
162	self.assert_(self.session.HasMaps())
163	self.assert_(self.session.WasModified())
164	self.assertEquals(self.session.Maps(), [map])
165	self.check_messages([(MAPS_CHANGED,),
166	(self.session, CHANGED)])
167
168	def test_set_filename(self):
169	"""Test Session.SetFilename"""
170	self.session.SetFilename("session_set_filename_test")
171	self.session.filename = "session_set_filename_test"
172	self.check_messages([(FILENAME_CHANGED,),
173	(self.session, CHANGED)])
174
175
176	class TestSessionWithContent(TestSessionBase):
177
178	"""Session test cases that start with a filled session."""
179
180	def setUp(self):
181	"""Extend the inherited method to add a non-empty map to self.session
182	"""
183	TestSessionBase.setUp(self)
184	open_shp = self.session.OpenShapefile
185	self.arc_layer = Layer("Roads",
186	open_shp(os.path.join("..", "Data", "iceland",
187	"roads-line.shp")))
188	self.poly_layer = Layer("Political",
189	open_shp(os.path.join("..", "Data", "iceland",
190	"political.shp")))
191	self.map = Map("A Map")
192	self.map.AddLayer(self.arc_layer)
193	self.map.AddLayer(self.poly_layer)
194	self.session.AddMap(self.map)
195	self.session.UnsetModified()
196	self.clear_messages()
197
198	def tearDown(self):
199	TestSessionBase.tearDown(self)
200	self.arc_layer = self.poly_layer = None
201
202	def test_remove_map(self):
203	"""Test Session.RemoveMap"""
204	self.session.RemoveMap(self.map)
205	self.assert_(self.session.WasModified())
206	self.failIf(self.session.HasMaps())
207	self.check_messages([(MAPS_CHANGED,),
208	(self.session, CHANGED)])
209
210	def test_tree_info(self):
211	"""Test Session.TreeInfo"""
212	self.assertEquals(self.session.TreeInfo(),
213	('Session: Test Session',
214	['Filename:',
215	'Unmodified',
216	self.map]))
217
218	def test_forward_map_projection(self):
219	"""Test Session forwarding of Map.SetProjection messages"""
220	proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
221	self.map.SetProjection(proj)
222	self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
223	(self.session, CHANGED)])
224	self.assert_(self.session.WasModified())
225
226	def test_forward_map_projection(self):
227	"""Test Session forwarding of Map.SetProjection messages"""
228	proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
229	self.map.SetProjection(proj)
230	self.assert_(self.session.WasModified())
231	self.check_messages([(self.map, MAP_PROJECTION_CHANGED),
232	(self.session, CHANGED)])
233
234	def test_forwarding_fill(self):
235	"""Test Session's forwarding of Layer.SetFill messages"""
236	self.poly_layer.GetClassification().SetDefaultFill(Color(0.0, 0.5, 1.0))
237	self.assert_(self.session.WasModified())
238	self.check_messages([(self.poly_layer, LAYER_CHANGED),
239	(self.session, CHANGED)])
240
241	def test_forwarding_stroke(self):
242	"""Test Session's forwarding of Layer.SetStroke messages"""
243	self.poly_layer.GetClassification().\
244	SetDefaultLineColor(Color(0.0, 0.5, 1.0))
245	self.assert_(self.session.WasModified())
246	self.check_messages([(self.poly_layer, LAYER_CHANGED),
247	(self.session, CHANGED)])
248
249	def test_forwarding_stroke_width(self):
250	"""Test Session's forwarding of Layer.SetStrokeWidth messages"""
251	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
252	self.assert_(self.session.WasModified())
253	self.check_messages([(self.poly_layer, LAYER_CHANGED),
254	(self.session, CHANGED)])
255
256	def test_forwarding_visibility(self):
257	"""Test Session's forwarding of Layer.SetVisible messages"""
258	self.poly_layer.SetVisible(0)
259	# Currently changing the visibility of a layer doesn't change
260	# the modification flag.
261	self.failIf(self.session.WasModified())
262	self.check_messages([(self.poly_layer, LAYER_VISIBILITY_CHANGED),
263	(self.session, CHANGED)])
264
265	def test_unset_modified_map(self):
266	"""Test Session.UnsetModified with map level changes"""
267	self.failIf(self.session.WasModified())
268	proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])
269	self.map.SetProjection(proj)
270	self.assert_(self.session.WasModified())
271	self.session.UnsetModified()
272	self.failIf(self.session.WasModified())
273
274	def test_unset_modified_layer(self):
275	"""Test Session.UnsetModified with layer level changes"""
276	self.failIf(self.session.WasModified())
277	self.poly_layer.GetClassification().SetDefaultLineWidth(3)
278	self.assert_(self.session.WasModified())
279	self.session.UnsetModified()
280	self.failIf(self.session.WasModified())
281	self.check_messages([(self.poly_layer, LAYER_CHANGED),
282	(self.session, CHANGED),
283	(CHANGED,)])
284
285	def test_shape_stores(self):
286	"""Test Session.ShapeStores()"""
287	# Strictly speaking the session doesn't make guarantees about
288	# the order of the ShapeStores in the list, but currently it's
289	# deterministic and they're listed in the order in which they
290	# were created
291	self.assertEquals(self.session.ShapeStores(),
292	[self.arc_layer.ShapeStore(),
293	self.poly_layer.ShapeStore()])
294	# If we remove the map from the session and clear our instance
295	# variables that hold the layers and the map the list should
296	# become empty again.
297	self.session.RemoveMap(self.map)
298	self.arc_layer = self.poly_layer = self.map = None
299	self.assertEquals(self.session.ShapeStores(), [])
300
301	def test_tables(self):
302	"""Test Session.Tables()"""
303	# Strictly speaking the session doesn't make guarantees about
304	# the order of the tables in the list, but currently it's
305	# deterministic and they're listed in the order in which they
306	# were opened
307	self.assertEquals(self.session.Tables(),
308	[self.arc_layer.ShapeStore().Table(),
309	self.poly_layer.ShapeStore().Table()])
310	# If we remove the map from the session and clear our instance
311	# variables that hold the layers and the map the list should
312	# become empty again.
313	self.session.RemoveMap(self.map)
314	self.arc_layer = self.poly_layer = self.map = None
315	self.assertEquals(self.session.Tables(), [])
316
317
318	if __name__ == "__main__":
319	unittest.main()
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