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