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# Copyright (c) 2002, 2003 by Intevation GmbH |
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# Authors: |
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# Bernhard Herzog <[email protected]> |
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# |
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# This program is free software under the GPL (>=v2) |
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# Read the file COPYING coming with Thuban for details. |
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|
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""" |
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Test the Session class |
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""" |
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|
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__version__ = "$Revision$" |
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# $Source$ |
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# $Id$ |
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|
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import os |
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import unittest |
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|
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import support |
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support.initthuban() |
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|
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from Thuban.Model.messages import CHANGED, MAPS_CHANGED, FILENAME_CHANGED, \ |
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MAP_PROJECTION_CHANGED, MAP_LAYERS_CHANGED, \ |
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LAYER_VISIBILITY_CHANGED, LAYER_CHANGED, TABLE_REMOVED |
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from Thuban.Model.session import Session |
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from Thuban.Model.map import Map |
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from Thuban.Model.layer import Layer |
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from Thuban.Model.proj import Projection |
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from Thuban.Model.color import Color |
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from Thuban.Model.table import MemoryTable, FIELDTYPE_STRING, \ |
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FIELDTYPE_INT, FIELDTYPE_DOUBLE |
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from Thuban.Model.data import DerivedShapeStore |
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from Thuban.Model.transientdb import TransientJoinedTable |
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|
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class TestSessionSimple(unittest.TestCase): |
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|
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"""Very simple test cases for Session""" |
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|
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def setUp(self): |
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"""Initialize self.session to None""" |
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self.session = None |
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|
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def tearDown(self): |
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"""Call self.session.Destroy() and reset self.session to None""" |
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self.session.Destroy() |
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self.session = None |
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|
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def test_initial_state(self): |
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"""Test Session's initial state""" |
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session = self.session = Session("Test Session") |
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self.assertEquals(session.Title(), "Test Session") |
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self.assertEquals(session.Maps(), []) |
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self.assertEquals(session.Tables(), []) |
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self.assertEquals(session.ShapeStores(), []) |
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self.assertEquals(session.filename, None) |
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self.failIf(session.HasMaps()) |
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self.failIf(session.WasModified()) |
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|
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def test_add_table(self): |
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"""Test Session.AddTable()""" |
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session = self.session = Session("Test Session") |
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memtable = MemoryTable([("type", FIELDTYPE_STRING), |
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("value", FIELDTYPE_DOUBLE), |
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("code", FIELDTYPE_INT)], |
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[("OTHER/UNKNOWN", -1.5, 11), |
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("RUINS", 0.0, 1), |
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("FARM", 3.141, 2), |
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("BUILDING", 2.5, 3), |
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("HUT", 1e6, 4), |
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("LIGHTHOUSE", -0.01, 5)]) |
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|
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# The session should be unmodified before the AddTable call and |
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# modified afterwards and of course the table should show up in |
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# Tables |
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self.failIf(session.WasModified()) |
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table = session.AddTable(memtable) |
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self.assertEquals(session.Tables(), [table]) |
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self.failUnless(session.WasModified()) |
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|
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def test_open_table_file(self): |
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"""Test Session.OpenTableFile()""" |
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session = self.session = Session("Test Session") |
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filename = os.path.join("..", "Data", "iceland", |
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"roads-line.dbf") |
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table = session.OpenTableFile(filename) |
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self.assertEquals(session.Tables(), [table]) |
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|
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def test_open_shapefile(self): |
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"""Test Session.OpenShapefile()""" |
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session = self.session = Session("Test Session") |
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filename = os.path.join("..", "Data", "iceland", |
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"roads-line.shp") |
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store = session.OpenShapefile(filename) |
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self.assertEquals(store.FileName(), os.path.abspath(filename)) |
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# The filetype of a shapefile is "shapefile" |
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self.assertEquals(store.FileType(), "shapefile") |
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# The shapestore itself depends on nothing else |
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self.assertEquals(store.Dependencies(), ()) |
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# The shapestore's table depends on the shapestore |
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self.assertEquals(store.Table().Dependencies(), (store,)) |
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|
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self.assertEquals(session.Tables(), [store.Table()]) |
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|
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def test_add_shapestore(self): |
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"""Test Session.AddShapeStore()""" |
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session = self.session = Session("Test Session") |
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filename = os.path.join("..", "Data", "iceland", |
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"roads-line.shp") |
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try: |
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store = session.OpenShapefile(filename) |
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derived = DerivedShapeStore(store, store.Table()) |
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session.AddShapeStore(derived) |
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self.assertEquals(session.ShapeStores(), [store, derived]) |
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finally: |
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store = derived = None |
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|
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|
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def test_unreferenced_tables(self): |
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"""Test Session.UnreferencedTables()""" |
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session = self.session = Session("Test Session") |
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filename = os.path.join("..", "Data", "iceland", |
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"roads-line.shp") |
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try: |
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store = session.OpenShapefile(filename) |
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filename = os.path.join("..", "Data", "iceland", |
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"roads-line.dbf") |
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table = session.OpenTableFile(filename) |
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self.assertEquals(session.Tables(), [table, store.Table()]) |
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# The store's table is reference by the store, so the only |
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# unreferenced table is the roads-line table |
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self.assertEquals(session.UnreferencedTables(), [table]) |
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finally: |
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store = table = None |
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|
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|
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class UnreferencedTablesTests(unittest.TestCase): |
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|
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"""Test cases for the session.UnreferencedTables() method""" |
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|
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def setUp(self): |
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"""Create a session with a few test tables""" |
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self.session = Session("Test Session") |
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memtable = MemoryTable([("type", FIELDTYPE_STRING), |
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("value", FIELDTYPE_DOUBLE), |
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("code", FIELDTYPE_INT)], |
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[("OTHER/UNKNOWN", -1.5, 11), |
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("RUINS", 0.0, 1), |
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("FARM", 3.141, 2), |
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("BUILDING", 2.5, 3), |
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("HUT", 1e6, 4), |
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("LIGHTHOUSE", -0.01, 5)]) |
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self.memtable = self.session.AddTable(memtable) |
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filename = os.path.join("..", "Data", "iceland", |
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"roads-line.dbf") |
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self.roads_line = self.session.OpenTableFile(filename) |
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filename = os.path.join("..", "Data", "iceland", |
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"cultural_landmark-point.dbf") |
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self.landmarks = self.session.OpenTableFile(filename) |
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|
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def tearDown(self): |
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"""Clear the session and layers""" |
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self.session = self.memtable = self.roads_line = self.landmarks = None |
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|
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def test_unreferenced_tables(self): |
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"""Test Session.UnreferencedTables()""" |
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self.assertEquals(self.session.UnreferencedTables(), |
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[self.memtable, self.roads_line, self.landmarks]) |
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|
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def test_unreferenced_tables_with_joins(self): |
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"""Test Session.UnreferencedTables() with joins""" |
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joined = TransientJoinedTable(self.session.TransientDB(), |
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self.landmarks, "CLPTLABEL", |
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self.memtable, "type", outer_join = True) |
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try: |
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joined = self.session.AddTable(joined) |
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# After the join, landmarks and memtable are referenced by |
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# joined which in turn is referenced by nothing |
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self.assertEquals(self.session.UnreferencedTables(), |
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[self.roads_line, joined]) |
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# Creating a DerivedShapeStore that references the joined table |
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# will remove it from the list of unreferenced tables, |
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store = self.session.OpenShapefile(os.path.join("..", "Data", |
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"iceland", |
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"political.dbf")) |
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derived = DerivedShapeStore(store, joined) |
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self.session.AddShapeStore(derived) |
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self.assertEquals(self.session.UnreferencedTables(), |
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[self.roads_line]) |
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finally: |
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joined = derived = store = None |
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|
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class TestSessionBase(unittest.TestCase, support.SubscriberMixin): |
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|
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"""Base class for Session test cases that test the messages""" |
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|
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def setUp(self): |
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""" |
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Clear the message list, create a session and subscribe to its messages |
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|
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Bind the session to self.session. |
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""" |
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self.clear_messages() |
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|
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# Create a Session and subscribe to all interesting channels. |
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self.session = Session("Test Session") |
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for channel in (CHANGED, |
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MAPS_CHANGED, |
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FILENAME_CHANGED, |
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MAP_PROJECTION_CHANGED, |
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MAP_LAYERS_CHANGED, |
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LAYER_VISIBILITY_CHANGED, |
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LAYER_CHANGED, |
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TABLE_REMOVED): |
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self.session.Subscribe(channel, |
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self.subscribe_with_params, channel) |
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|
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def tearDown(self): |
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"""Destroy self.session and clear the message list""" |
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self.session.Destroy() |
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self.session = None |
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self.clear_messages() |
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|
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|
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class TestSessionMessages(TestSessionBase): |
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|
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"""Simple Session test cases that test messges""" |
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|
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def test_add_map(self): |
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"""Test Session.AddMap""" |
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self.failIf(self.session.WasModified()) |
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map = Map("Some Map") |
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self.session.AddMap(map) |
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self.assert_(self.session.HasMaps()) |
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self.assert_(self.session.WasModified()) |
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self.assertEquals(self.session.Maps(), [map]) |
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self.check_messages([(MAPS_CHANGED,), |
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(self.session, CHANGED)]) |
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|
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def test_set_filename(self): |
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"""Test Session.SetFilename""" |
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self.session.SetFilename("session_set_filename_test") |
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self.session.filename = "session_set_filename_test" |
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self.check_messages([(FILENAME_CHANGED,), |
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(self.session, CHANGED)]) |
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|
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def test_remove_table(self): |
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"""Test Session.RemoveTable()""" |
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memtable = MemoryTable([("type", FIELDTYPE_STRING), |
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("value", FIELDTYPE_DOUBLE), |
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("code", FIELDTYPE_INT)], |
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[("OTHER/UNKNOWN", -1.5, 11), |
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("RUINS", 0.0, 1), |
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("FARM", 3.141, 2), |
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("BUILDING", 2.5, 3), |
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("HUT", 1e6, 4), |
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("LIGHTHOUSE", -0.01, 5)]) |
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table = self.session.AddTable(memtable) |
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self.assertEquals(self.session.Tables(), [table]) |
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self.clear_messages() |
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self.session.RemoveTable(table) |
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self.check_messages([(table, TABLE_REMOVED), |
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(self.session, CHANGED)]) |
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self.assertEquals(self.session.Tables(), []) |
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self.assertRaises(ValueError, self.session.RemoveTable, table) |
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|
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|
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class TestSessionWithContent(TestSessionBase): |
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|
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"""Session test cases that start with a filled session.""" |
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|
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def setUp(self): |
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"""Extend the inherited method to add a non-empty map to self.session |
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""" |
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TestSessionBase.setUp(self) |
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open_shp = self.session.OpenShapefile |
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self.arc_layer = Layer("Roads", |
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open_shp(os.path.join("..", "Data", "iceland", |
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"roads-line.shp"))) |
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self.poly_layer = Layer("Political", |
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open_shp(os.path.join("..", "Data", "iceland", |
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"political.shp"))) |
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self.map = Map("A Map") |
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self.map.AddLayer(self.arc_layer) |
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self.map.AddLayer(self.poly_layer) |
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self.session.AddMap(self.map) |
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self.session.UnsetModified() |
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self.clear_messages() |
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|
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def tearDown(self): |
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TestSessionBase.tearDown(self) |
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self.arc_layer = self.poly_layer = None |
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|
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def test_remove_map(self): |
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"""Test Session.RemoveMap""" |
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self.session.RemoveMap(self.map) |
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self.assert_(self.session.WasModified()) |
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self.failIf(self.session.HasMaps()) |
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self.check_messages([(MAPS_CHANGED,), |
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(self.session, CHANGED)]) |
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|
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def test_tree_info(self): |
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"""Test Session.TreeInfo""" |
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self.assertEquals(self.session.TreeInfo(), |
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('Session: Test Session', |
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['Filename:', |
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'Unmodified', |
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self.map])) |
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|
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def test_forward_map_projection(self): |
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"""Test Session forwarding of Map.SetProjection messages""" |
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proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"]) |
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self.map.SetProjection(proj) |
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self.check_messages([(self.map, MAP_PROJECTION_CHANGED), |
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(self.session, CHANGED)]) |
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self.assert_(self.session.WasModified()) |
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|
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def test_forward_map_projection(self): |
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"""Test Session forwarding of Map.SetProjection messages""" |
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proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"]) |
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self.map.SetProjection(proj) |
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self.assert_(self.session.WasModified()) |
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self.check_messages([(self.map, MAP_PROJECTION_CHANGED), |
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(self.session, CHANGED)]) |
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|
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def test_forwarding_fill(self): |
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"""Test Session's forwarding of Layer.SetFill messages""" |
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self.poly_layer.GetClassification().SetDefaultFill(Color(0.0, 0.5, 1.0)) |
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self.assert_(self.session.WasModified()) |
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self.check_messages([(self.poly_layer, LAYER_CHANGED), |
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(self.session, CHANGED)]) |
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|
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def test_forwarding_stroke(self): |
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"""Test Session's forwarding of Layer.SetStroke messages""" |
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self.poly_layer.GetClassification().\ |
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SetDefaultLineColor(Color(0.0, 0.5, 1.0)) |
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self.assert_(self.session.WasModified()) |
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self.check_messages([(self.poly_layer, LAYER_CHANGED), |
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(self.session, CHANGED)]) |
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|
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def test_forwarding_stroke_width(self): |
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"""Test Session's forwarding of Layer.SetStrokeWidth messages""" |
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self.poly_layer.GetClassification().SetDefaultLineWidth(3) |
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self.assert_(self.session.WasModified()) |
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self.check_messages([(self.poly_layer, LAYER_CHANGED), |
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(self.session, CHANGED)]) |
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|
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def test_forwarding_visibility(self): |
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"""Test Session's forwarding of Layer.SetVisible messages""" |
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self.poly_layer.SetVisible(0) |
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# Currently changing the visibility of a layer doesn't change |
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# the modification flag. |
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self.failIf(self.session.WasModified()) |
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self.check_messages([(self.poly_layer, LAYER_VISIBILITY_CHANGED), |
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(self.session, CHANGED)]) |
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|
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def test_unset_modified_map(self): |
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"""Test Session.UnsetModified with map level changes""" |
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self.failIf(self.session.WasModified()) |
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proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"]) |
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self.map.SetProjection(proj) |
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self.assert_(self.session.WasModified()) |
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self.session.UnsetModified() |
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self.failIf(self.session.WasModified()) |
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|
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def test_unset_modified_layer(self): |
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"""Test Session.UnsetModified with layer level changes""" |
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self.failIf(self.session.WasModified()) |
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self.poly_layer.GetClassification().SetDefaultLineWidth(3) |
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self.assert_(self.session.WasModified()) |
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self.session.UnsetModified() |
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self.failIf(self.session.WasModified()) |
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self.check_messages([(self.poly_layer, LAYER_CHANGED), |
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(self.session, CHANGED), |
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(CHANGED,)]) |
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|
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def test_shape_stores(self): |
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"""Test Session.ShapeStores()""" |
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# Strictly speaking the session doesn't make guarantees about |
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# the order of the ShapeStores in the list, but currently it's |
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# deterministic and they're listed in the order in which they |
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# were created |
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self.assertEquals(self.session.ShapeStores(), |
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[self.arc_layer.ShapeStore(), |
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self.poly_layer.ShapeStore()]) |
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# If we remove the map from the session and clear our instance |
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# variables that hold the layers and the map the list should |
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# become empty again. |
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self.session.RemoveMap(self.map) |
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self.arc_layer = self.poly_layer = self.map = None |
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self.assertEquals(self.session.ShapeStores(), []) |
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|
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def test_tables(self): |
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"""Test Session.Tables()""" |
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# Strictly speaking the session doesn't make guarantees about |
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# the order of the tables in the list, but currently it's |
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# deterministic and they're listed in the order in which they |
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# were opened |
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self.assertEquals(self.session.Tables(), |
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[self.arc_layer.ShapeStore().Table(), |
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self.poly_layer.ShapeStore().Table()]) |
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# If we remove the map from the session and clear our instance |
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# variables that hold the layers and the map the list should |
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# become empty again. |
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self.session.RemoveMap(self.map) |
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self.arc_layer = self.poly_layer = self.map = None |
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self.assertEquals(self.session.Tables(), []) |
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|
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|
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if __name__ == "__main__": |
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unittest.main() |
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