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# Copyright (c) 2002 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 Map 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, MAP_PROJECTION_CHANGED, \ |
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LAYERS_CHANGED, LAYER_VISIBILITY_CHANGED, LAYER_LEGEND_CHANGED |
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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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|
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|
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class TestMapSimple(unittest.TestCase): |
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|
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"""Very simple test cases for Map""" |
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|
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def test_initial_state(self): |
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"""Test Map's initial state""" |
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map = Map("Test Map") |
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self.assertEquals(map.Title(), "Test Map") |
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self.assertEquals(map.Layers(), []) |
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label_layer = map.LabelLayer() |
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self.assertEquals(label_layer.Title(), "Labels") |
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self.assertEquals(label_layer.Labels(), []) |
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self.failIf(map.WasModified()) |
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map.Destroy() |
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|
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def test_empty_map(self): |
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"""Test empty Map""" |
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map = Map("Test Map") |
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self.assertEquals(map.BoundingBox(), None) |
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self.assertEquals(map.ProjectedBoundingBox(), None) |
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self.failIf(map.HasLayers()) |
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map.Destroy() |
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|
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|
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class TestMapBase(unittest.TestCase, support.SubscriberMixin): |
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|
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"""Base class for Map test cases that test 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 self.map and subscribe to its messages |
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""" |
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self.clear_messages() |
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|
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# Create a Map and subscribe to all interesting channels. |
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self.map = Map("Test Map") |
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for channel in (CHANGED, MAP_PROJECTION_CHANGED, LAYERS_CHANGED, |
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LAYER_VISIBILITY_CHANGED, LAYER_LEGEND_CHANGED): |
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self.map.Subscribe(channel, self.subscribe_with_params, channel) |
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|
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def tearDown(self): |
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"""Destroy self.map and clear the message list""" |
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self.map.Destroy() |
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self.clear_messages() |
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|
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|
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class TestMapAddLayer(TestMapBase): |
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|
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"""Simple test cases involving messages""" |
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|
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def test_add_layer(self): |
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"""Test Map.AddLayer""" |
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# make sure the created Map is unmodified |
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self.failIf(self.map.WasModified()) |
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self.failIf(self.map.HasLayers()) |
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|
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# add a layer and check the result |
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roads = Layer("Roads", |
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os.path.join("..", "Data", "iceland", "roads-line.shp")) |
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self.map.AddLayer(roads) |
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self.assertEquals(self.map.Layers(), [roads]) |
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self.check_messages([(self.map, LAYERS_CHANGED)]) |
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self.assert_(self.map.WasModified()) |
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self.assert_(self.map.HasLayers()) |
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|
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|
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class TestMapWithContents(TestMapBase, support.FloatComparisonMixin): |
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|
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"""More complex Map test cases with messages that. |
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All test cases here start with a non-empty map. |
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""" |
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|
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def setUp(self): |
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"""Extend the inherited method to also fill the Map. |
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Put some layers into the map created by the inherited method and |
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reset its modified flag. Make also sure that the list of |
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received messages is empty. |
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""" |
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TestMapBase.setUp(self) |
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self.arc_layer = Layer("Roads", |
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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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os.path.join("..", "Data", "iceland", |
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"political.shp")) |
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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.map.UnsetModified() |
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self.clear_messages() |
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|
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def test_remove_layer(self): |
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"""Test Map.RemoveLayer""" |
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self.map.RemoveLayer(self.arc_layer) |
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self.assert_(self.map.WasModified()) |
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self.assertEquals(self.map.Layers(), [self.poly_layer]) |
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self.map.UnsetModified() |
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self.check_messages([(self.map, LAYERS_CHANGED), |
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(CHANGED,)]) |
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|
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def test_clear_layers(self): |
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"""Test Map.ClearLayers""" |
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self.map.ClearLayers() |
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self.assertEquals(self.map.Layers(), []) |
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self.assertEquals(self.map.LabelLayer().Labels(), []) |
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self.check_messages([(LAYERS_CHANGED,), |
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(self.map, LAYERS_CHANGED)]) |
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self.assert_(self.map.WasModified()) |
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self.failIf(self.map.HasLayers()) |
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|
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def test_raise_layer(self): |
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"""Test Map.RaiseLayer""" |
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self.map.RaiseLayer(self.arc_layer) |
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self.assertEquals(self.map.Layers(), [self.poly_layer, self.arc_layer]) |
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self.check_messages([(self.map, LAYERS_CHANGED)]) |
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self.assert_(self.map.WasModified()) |
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|
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def test_raise_highest_layer(self): |
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"""Test Map.RaiseLayer with highest layer |
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|
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Attempting to raise the highest layer should not modify the map. |
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In particular it should not send any messages. |
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""" |
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self.map.RaiseLayer(self.poly_layer) |
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self.assertEquals(self.map.Layers(), [self.arc_layer, self.poly_layer]) |
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self.check_messages([]) |
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self.failIf(self.map.WasModified()) |
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|
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def test_lower_layer(self): |
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"""Test Map.LowerLayer""" |
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self.map.LowerLayer(self.poly_layer) |
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self.assertEquals(self.map.Layers(), [self.poly_layer, self.arc_layer]) |
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self.check_messages([(self.map, LAYERS_CHANGED)]) |
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self.assert_(self.map.WasModified()) |
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|
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def test_lower_lowest_layer(self): |
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"""Test Map.LowerLayer with lowest layer. |
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Attempting to lower the lowest layer should not modify the map. |
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In particular it should not send any messages. |
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""" |
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self.map.LowerLayer(self.arc_layer) |
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self.assertEquals(self.map.Layers(), [self.arc_layer, self.poly_layer]) |
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self.check_messages([]) |
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self.failIf(self.map.WasModified()) |
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|
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def test_bounding_box(self): |
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"""Test Map.BoundingBox""" |
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self.assertFloatSeqEqual(self.map.BoundingBox(), |
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(-24.546524047851562, 63.286754608154297, |
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-13.495815277099609, 66.563774108886719)) |
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|
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def test_projected_bounding_box(self): |
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"""Test Map.ProjectedBoundingBox""" |
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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.assertFloatSeqEqual(self.map.ProjectedBoundingBox(), |
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(608873.03380603762, 7019694.6517963577, |
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1173560.0288053728, 7447353.2203218574), |
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epsilon = 1e-5) |
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|
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def test_set_projection(self): |
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"""Test Map.SetProjection""" |
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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.assert_(self.map.WasModified()) |
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|
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def test_tree_info(self): |
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"""Test Map.TreeInfo""" |
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proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"]) |
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self.map.SetProjection(proj) |
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# compute the extent string because there are platform |
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# differences in the way %g is handled: |
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# glibc: "%g" % 7.01969e+06 == "7.01969e+06" |
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# w32/VC: "%g" % 7.01969e+06 == "7.01969e+006" |
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extent = 'Extent (projected): (%g, %g, %g, %g)'\ |
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% (608873, 7.01969e+06, 1.17356e+06, 7.44735e+06) |
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self.assertEquals(self.map.TreeInfo(), |
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('Map: Test Map', |
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[('Extent (lat-lon):' |
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' (-24.5465, 63.2868, -13.4958, 66.5638)'), |
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extent, |
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('Projection', |
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['zone=26', 'proj=utm', 'ellps=clrk66']), |
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self.poly_layer, |
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self.arc_layer])) |
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|
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def test_forwarding_visibility(self): |
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"""Test Map's forwarding of Layer.SetVisible messages""" |
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self.poly_layer.SetVisible(0) |
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self.check_messages([(self.poly_layer, LAYER_VISIBILITY_CHANGED)]) |
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|
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def test_unset_modified(self): |
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"""Test Map.UnsetModified. |
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Test whether a change to a layer results in the map being |
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considered modified and test whether then calling the map's |
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UnsetModified clears the changed flag in the layer as well. |
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""" |
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self.failIf(self.map.WasModified()) |
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self.poly_layer.classification.SetDefaultFill(Color(0.0, 0.5, 1.0)) |
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self.assert_(self.map.WasModified()) |
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self.map.UnsetModified() |
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self.failIf(self.map.WasModified()) |
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self.failIf(self.poly_layer.WasModified()) |
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self.check_messages([(self.poly_layer, LAYER_LEGEND_CHANGED), |
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(CHANGED,) |
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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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