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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 loading a thuban session from a file |
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|
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The tests in this file (test_load.py) are always be the tests for the |
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current version of the thuban file format. Tests for older versions can |
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be found in the version specific test modules, e.g. test_load_0_2 for |
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files created by Thuban 0.2. |
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|
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Maintenance of the test cases: |
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|
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When during a development period the file format is changed with respect |
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to the last released version for the first, the tests here should be |
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copied to the version specific test file. The round-trip tests which |
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save the session again and compare the XML files should not be copied |
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over as they only make sense here to make sure th that the files checked |
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here are actually ones that may have been written by the current thuban |
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version. |
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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 xmlsupport import sax_eventlist |
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|
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import dbflib |
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|
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from Thuban.Model.save import save_session |
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from Thuban.Model.load import load_session, parse_color, LoadError |
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from Thuban.Model.color import Transparent |
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from Thuban.Model.classification import ClassGroupProperties, ClassGroupRange,\ |
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ClassGroupSingleton, ClassGroupDefault |
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|
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|
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def filenames_equal(name1, name2): |
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"""Return true if the filenames name1 and name2 are equal. |
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|
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On systems where it is available, simply use os.path.samefile, |
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otherwise return whether the normalized versions of the filenames |
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according to os.path.normpath are equal. |
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""" |
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if hasattr(os.path, "samefile"): |
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return os.path.samefile(name1, name2) |
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return os.path.normpath(name1) == os.path.normpath(name2) |
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|
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|
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|
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class LoadSessionTest(support.FileLoadTestCase): |
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|
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"""Base class for .thuban file loading tests |
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|
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Basically the same as the FileLoadTestCase, except that all tests |
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use the '.thuban' extension by default and that setUp and tearDown |
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handle sessions. |
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""" |
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|
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file_extension = ".thuban" |
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|
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def setUp(self): |
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"""Create the test files""" |
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support.FileLoadTestCase.setUp(self) |
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self.session = None |
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|
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def tearDown(self): |
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if self.session is not None: |
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self.session.Destroy() |
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self.session = None |
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|
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|
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dtd = "http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd" |
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thubanids = [((dtd, n), (None, "id")) for n in |
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["fileshapesource", "filetable", "jointable", |
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"derivedshapesource"]] |
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thubanidrefs = [((dtd, n), (None, m)) for n, m in |
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[("layer", "shapestore"), |
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("jointable", "left"), |
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("jointable", "right"), |
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("derivedshapesource", "table"), |
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("derivedshapesource", "shapesource")]] |
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del n, m, dtd |
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|
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def check_format(self): |
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"""Check whether the file we loaded from matches the one that |
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would be written. Call this from each test case after loading |
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the session |
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""" |
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filename = self.temp_file_name(self.id() + ".roundtrip.thuban") |
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save_session(self.session, filename) |
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el1 = sax_eventlist(filename = filename, ids = self.thubanids, |
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idrefs = self.thubanidrefs) |
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el2 = sax_eventlist(filename = self.filename(), ids = self.thubanids, |
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idrefs = self.thubanidrefs) |
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if 0: |
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for a, b in zip(el1, el2): |
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print a != b and "***************" or "" |
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print a |
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print b |
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self.assertEquals(el1, el2, |
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"loaded file not equivalent to the saved file") |
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|
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|
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class ClassificationTest(LoadSessionTest): |
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|
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""" |
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Base class for tests that do some detailed checking of classifications |
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""" |
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|
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def TestLayers(self, layers, expected): |
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TITLE = 0 |
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NUM_GROUPS = 1 |
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CLASSES = 2 |
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GROUP_TYPE = 0 |
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GROUP_DATA = 1 |
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GROUP_LABEL = 2 |
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GROUP_PROPS = 3 |
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|
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eq = self.assertEquals |
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|
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eq(len(layers), len(expected)) |
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|
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for layer, data in zip(layers, expected): |
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eq(layer.Title(), data[TITLE]) |
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|
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clazz = layer.GetClassification() |
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eq(clazz.GetNumGroups(), data[NUM_GROUPS]) |
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eq(clazz.GetNumGroups() + 1, len(data[CLASSES])) |
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|
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i = 0 |
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for group in clazz: |
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props = ClassGroupProperties() |
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props.SetLineColor( |
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parse_color(data[CLASSES][i][GROUP_PROPS][0])) |
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props.SetLineWidth(data[CLASSES][i][GROUP_PROPS][1]) |
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props.SetFill( |
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parse_color(data[CLASSES][i][GROUP_PROPS][2])) |
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|
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if data[CLASSES][i][GROUP_TYPE] == "default": |
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g = ClassGroupDefault(props, data[CLASSES][i][GROUP_LABEL]) |
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elif data[CLASSES][i][GROUP_TYPE] == "range": |
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g = ClassGroupRange((data[CLASSES][i][GROUP_DATA][0], |
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data[CLASSES][i][GROUP_DATA][1]), |
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props, data[CLASSES][i][GROUP_LABEL]) |
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elif data[CLASSES][i][GROUP_TYPE] == "single": |
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g = ClassGroupSingleton(data[CLASSES][i][GROUP_DATA], |
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props, data[CLASSES][i][GROUP_LABEL]) |
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|
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eq(group, g) |
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|
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i += 1 |
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|
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|
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|
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class TestSingleLayer(LoadSessionTest): |
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|
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file_contents = '''\ |
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<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE session SYSTEM "thuban-0.9.dtd"> |
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<session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd" |
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title="single map&layer"> |
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<fileshapesource filetype="shapefile" id="D1" |
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filename="../../Data/iceland/political.shp"/> |
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<map title="Test Map"> |
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<projection name="Unknown"> |
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<parameter value="zone=26"/> |
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<parameter value="proj=utm"/> |
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<parameter value="ellps=clrk66"/> |
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</projection> |
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<layer shapestore="D1" visible="true" |
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stroke="#000000" title="My Layer" stroke_width="1" |
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fill="None"/> |
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</map> |
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</session> |
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''' |
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|
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def test(self): |
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"""Load a session with a single map with a single layer""" |
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eq = self.assertEquals |
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session = load_session(self.filename()) |
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self.session = session |
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|
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# Check the title |
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eq(session.Title(), "single map&layer") |
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|
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# the session has one map. |
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maps = session.Maps() |
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eq(len(maps), 1) |
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|
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# Check the map's attributes |
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map = maps[0] |
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eq(map.Title(), "Test Map") |
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|
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# the map has a single layer |
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layers = map.Layers() |
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eq(len(layers), 1) |
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|
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# Check the layer attributes |
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layer = layers[0] |
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eq(layer.Title(), "My Layer") |
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self.failUnless(filenames_equal(layer.ShapeStore().FileName(), |
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os.path.join(self.temp_dir(), |
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os.pardir, os.pardir, |
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"Data", "iceland", |
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"political.shp"))) |
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eq(layer.GetClassification().GetDefaultFill(), Transparent) |
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eq(layer.GetClassification().GetDefaultLineColor().hex(), "#000000") |
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eq(layer.Visible(), True) |
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|
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self.check_format() |
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|
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self.session.Destroy() |
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self.session = None |
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|
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|
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class TestLayerVisibility(LoadSessionTest): |
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|
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file_contents = '''\ |
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<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE session SYSTEM "thuban-0.9.dtd"> |
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<session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd" |
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title="single map&layer"> |
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<fileshapesource filetype="shapefile" id="D1" |
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filename="../../Data/iceland/political.shp"/> |
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<map title="Test Map"> |
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<projection name="Unknown"> |
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<parameter value="zone=26"/> |
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<parameter value="proj=utm"/> |
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<parameter value="ellps=clrk66"/> |
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</projection> |
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<layer shapestore="D1" visible="false" stroke="#000000" |
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title="My Layer" stroke_width="1" fill="None"/> |
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</map> |
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</session> |
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''' |
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|
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def test(self): |
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"""Test that the visible flag is correctly loaded for a layer.""" |
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eq = self.assertEquals |
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session = load_session(self.filename()) |
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self.session = session |
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maps = session.Maps() |
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eq(len(maps), 1) |
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map = maps[0] |
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layers = map.Layers() |
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eq(len(layers), 1) |
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layer = layers[0] |
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|
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eq(layer.Visible(), False) |
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|
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self.check_format() |
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|
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|
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class TestClassification(ClassificationTest): |
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|
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file_contents = '''\ |
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<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE session SYSTEM "thuban.dtd"> |
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<session title="single map&layer"> |
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<map title="Test Map"> |
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<projection> |
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<parameter value="zone=26"/> |
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<parameter value="proj=utm"/> |
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<parameter value="ellps=clrk66"/> |
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</projection> |
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<layer title="My Layer" stroke_width="1" fill="None" |
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filename="../../Data/iceland/political.shp" |
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stroke="#000000"> |
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<classification field="POPYREG" field_type="string"> |
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<clnull> |
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<cldata stroke="#000000" stroke_width="1" fill="None"/> |
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</clnull> |
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<clpoint value="1"> |
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<cldata stroke="#000000" stroke_width="2" fill="None"/> |
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</clpoint> |
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<clpoint value="1"> |
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<cldata stroke="#000000" stroke_width="10" fill="None"/> |
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</clpoint> |
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<clpoint value="\xc3\xa4\xc3\xb6\xc3\xbc" |
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label="\xc3\x9cml\xc3\xa4uts"> |
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<cldata fill="None" stroke="#000000" stroke_width="1"/> |
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</clpoint> |
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</classification> |
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</layer> |
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<layer title="My Layer 2" stroke_width="1" fill="None" |
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filename="../../Data/iceland/political.shp" |
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stroke="#000000"> |
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<classification field="AREA" field_type="double"> |
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<clnull> |
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<cldata stroke="#000000" stroke_width="2" fill="None"/> |
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</clnull> |
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<clrange min="0" max="1"> |
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<cldata stroke="#111111" stroke_width="1" fill="None"/> |
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</clrange> |
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<clpoint value=".5"> |
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<cldata stroke="#000000" stroke_width="1" fill="#111111"/> |
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</clpoint> |
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<clrange min="-1" max="0"> |
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<cldata stroke="#000000" stroke_width="1" fill="None"/> |
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</clrange> |
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<clpoint value="-.5"> |
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<cldata stroke="#000000" stroke_width="1" fill="None"/> |
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</clpoint> |
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</classification> |
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</layer> |
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</map> |
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</session> |
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''' |
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|
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def test(self): |
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"""Load a Thuban session with a map and classified layers.""" |
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session = load_session(self.filename()) |
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self.session = session |
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|
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map = self.session.Maps()[0] # only one map in the sample |
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|
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expected = [("My Layer", 3, |
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[("default", (), "", |
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("#000000", 1, "None")), |
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("single", "1", "", |
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("#000000", 2, "None")), |
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("single", "1", "", |
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("#000000", 10, "None")), |
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("single", "\xe4\xf6\xfc", "\xdcml\xe4uts", |
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("#000000", 1, "None"))]), |
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("My Layer 2", 4, |
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[("default", (), "", |
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("#000000", 2, "None")), |
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("range", (0, 1), "", |
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("#111111", 1, "None")), |
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("single", .5, "", |
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("#000000", 1, "#111111")), |
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("range", (-1, 0), "", |
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("#000000", 1, "None")), |
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("single", -.5, "", |
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("#000000", 1, "None"))])] |
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|
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self.TestLayers(map.Layers(), expected) |
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|
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|
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class TestLabels(ClassificationTest): |
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|
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file_contents = '''\ |
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<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE session SYSTEM "thuban-0.9.dtd"> |
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<session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd" |
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title="single map&layer"> |
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<fileshapesource filetype="shapefile" id="D1" |
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filename="../../Data/iceland/political.shp"/> |
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<map title="Test Map"> |
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<projection name="Unknown"> |
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<parameter value="zone=26"/> |
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<parameter value="proj=utm"/> |
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<parameter value="ellps=clrk66"/> |
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</projection> |
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<layer shapestore="D1" visible="true" stroke="#000000" |
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title="My Layer" stroke_width="1" fill="None"> |
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<classification field="POPYREG" field_type="string"> |
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<clnull label="hallo"> |
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<cldata stroke="#000000" stroke_width="1" fill="None"/> |
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</clnull> |
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<clpoint label="welt" value="1"> |
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<cldata stroke="#000000" stroke_width="2" fill="None"/> |
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</clpoint> |
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</classification> |
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</layer> |
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</map> |
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</session> |
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''' |
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|
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def test(self): |
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"""Load a session and test for reading the group labels.""" |
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eq = self.assertEquals |
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session = load_session(self.filename()) |
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self.session = session |
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|
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map = self.session.Maps()[0] # only one map in the sample |
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|
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expected = [("My Layer", 1, |
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[("default", (), "hallo", |
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("#000000", 1, "None")), |
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("single", "1", "welt", |
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("#000000", 2, "None"))])] |
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|
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self.TestLayers(map.Layers(), expected) |
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self.check_format() |
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|
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|
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class TestLayerProjection(LoadSessionTest): |
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|
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file_contents = '''\ |
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<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE session SYSTEM "thuban-0.9.dtd"> |
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<session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd" |
| 406 |
title="single map&layer"> |
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<fileshapesource filetype="shapefile" id="D2" |
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filename="../../Data/iceland/roads-line.shp"/> |
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<fileshapesource filetype="shapefile" id="D4" |
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filename="../../Data/iceland/political.shp"/> |
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<map title="Test Map"> |
| 412 |
<projection name="Unknown"> |
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<parameter value="zone=26"/> |
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<parameter value="proj=utm"/> |
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<parameter value="ellps=clrk66"/> |
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</projection> |
| 417 |
<layer shapestore="D4" visible="true" stroke="#000000" |
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title="My Layer" stroke_width="1" fill="None"> |
| 419 |
<projection name="hello"> |
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<parameter value="zone=13"/> |
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<parameter value="proj=tmerc"/> |
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<parameter value="ellps=clrk66"/> |
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</projection> |
| 424 |
<classification field="POPYREG" field_type="string"> |
| 425 |
<clnull label="hallo"> |
| 426 |
<cldata stroke="#000000" stroke_width="1" fill="None"/> |
| 427 |
</clnull> |
| 428 |
<clpoint label="welt" value="1"> |
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<cldata stroke="#000000" stroke_width="2" fill="None"/> |
| 430 |
</clpoint> |
| 431 |
</classification> |
| 432 |
</layer> |
| 433 |
<layer shapestore="D2" visible="true" stroke="#000000" |
| 434 |
title="My Layer" stroke_width="1" fill="None"> |
| 435 |
<projection name="Unknown"> |
| 436 |
<parameter value="proj=lcc"/> |
| 437 |
<parameter value="ellps=clrk66"/> |
| 438 |
</projection> |
| 439 |
</layer> |
| 440 |
</map> |
| 441 |
</session> |
| 442 |
''' |
| 443 |
|
| 444 |
def test(self): |
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"""Test loading layers with projections""" |
| 446 |
eq = self.assertEquals |
| 447 |
neq = self.assertNotEqual |
| 448 |
|
| 449 |
session = load_session(self.filename()) |
| 450 |
self.session = session |
| 451 |
|
| 452 |
map = self.session.Maps()[0] # only one map in the sample |
| 453 |
|
| 454 |
layers = map.Layers() # two layers in the sample |
| 455 |
|
| 456 |
# test layer with a named projection |
| 457 |
proj = layers[0].GetProjection() |
| 458 |
neq(proj, None) |
| 459 |
eq(proj.GetName(), "hello") |
| 460 |
eq(proj.GetParameter("proj"), "tmerc") |
| 461 |
eq(proj.GetParameter("zone"), "13") |
| 462 |
eq(proj.GetParameter("ellps"), "clrk66") |
| 463 |
|
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# test layer with an unnamed projection |
| 465 |
proj = layers[1].GetProjection() |
| 466 |
neq(proj, None) |
| 467 |
eq(proj.GetName(), "Unknown") |
| 468 |
eq(proj.GetParameter("proj"), "lcc") |
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eq(proj.GetParameter("ellps"), "clrk66") |
| 470 |
|
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self.check_format() |
| 472 |
|
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|
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class TestRasterLayer(LoadSessionTest): |
| 475 |
|
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file_contents = '''\ |
| 477 |
<?xml version="1.0" encoding="UTF-8"?> |
| 478 |
<!DOCTYPE session SYSTEM "thuban-0.9.dtd"> |
| 479 |
<session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd" |
| 480 |
title="single map&layer"> |
| 481 |
<map title="Test Map"> |
| 482 |
<rasterlayer visible="false" filename="../../Data/iceland/island.tif" |
| 483 |
title="My RasterLayer"/> |
| 484 |
</map> |
| 485 |
</session> |
| 486 |
''' |
| 487 |
|
| 488 |
def test(self): |
| 489 |
eq = self.assertEquals |
| 490 |
neq = self.assertNotEqual |
| 491 |
|
| 492 |
session = load_session(self.filename()) |
| 493 |
self.session = session |
| 494 |
|
| 495 |
map = self.session.Maps()[0] # only one map in the sample |
| 496 |
|
| 497 |
layer = map.Layers()[0] # one layer in the sample |
| 498 |
|
| 499 |
eq(layer.Title(), "My RasterLayer") |
| 500 |
self.failIf(layer.Visible()) |
| 501 |
self.failUnless(filenames_equal(layer.GetImageFilename(), |
| 502 |
os.path.join(self.temp_dir(), |
| 503 |
os.pardir, os.pardir, |
| 504 |
"Data", "iceland", |
| 505 |
"island.tif"))) |
| 506 |
self.check_format() |
| 507 |
|
| 508 |
|
| 509 |
class TestJoinedTable(LoadSessionTest): |
| 510 |
|
| 511 |
file_contents = '''<?xml version="1.0" encoding="UTF-8"?> |
| 512 |
<!DOCTYPE session SYSTEM "thuban-0.9.dtd"> |
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<session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd" title="A Joined Table session"> |
| 514 |
<fileshapesource filetype="shapefile" id="D137227612" |
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filename="../../Data/iceland/roads-line.shp"/> |
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<filetable filetype="DBF" filename="load_joinedtable.dbf" id="D136171140" |
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title="Some Title"/> |
| 518 |
<jointable id="D136169900" title="Joined" |
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right="D136171140" left="D137227612" |
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leftcolumn="RDLNTYPE" rightcolumn="RDTYPE" |
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jointype="LEFT OUTER"/> |
| 522 |
<derivedshapesource table="D136169900" shapesource="D137227612" |
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id="D136170932"/> |
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<map title="Test Map"> |
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<layer shapestore="D136170932" visible="true" stroke="#000000" |
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title="My Layer" stroke_width="1" fill="None"/> |
| 527 |
</map> |
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</session> |
| 529 |
''' |
| 530 |
|
| 531 |
def setUp(self): |
| 532 |
"""Extend inherited method to create the dbffile for the join""" |
| 533 |
LoadSessionTest.setUp(self) |
| 534 |
dbffile = self.temp_file_name("load_joinedtable.dbf") |
| 535 |
dbf = dbflib.create(dbffile) |
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dbf.add_field("RDTYPE", dbflib.FTInteger, 10, 0) |
| 537 |
dbf.add_field("TEXT", dbflib.FTString, 10, 0) |
| 538 |
dbf.write_record(0, {'RDTYPE': 8, "TEXT": "foo"}) |
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dbf.write_record(1, {'RDTYPE': 2, "TEXT": "bar"}) |
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dbf.write_record(2, {'RDTYPE': 3, "TEXT": "baz"}) |
| 541 |
dbf.close() |
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|
| 543 |
def test(self): |
| 544 |
"""Test loading a session containing a joined table""" |
| 545 |
session = load_session(self.filename()) |
| 546 |
self.session = session |
| 547 |
|
| 548 |
tables = session.Tables() |
| 549 |
self.assertEquals(len(tables), 3) |
| 550 |
# FIXME: The tests shouldn't assume a certain order of the tables |
| 551 |
self.assertEquals(tables[0].Title(), "Some Title") |
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self.assertEquals(tables[1].Title(), "Joined") |
| 553 |
self.assertEquals(tables[1].JoinType(), "LEFT OUTER") |
| 554 |
self.check_format() |
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|
| 556 |
|
| 557 |
class TestLoadError(LoadSessionTest): |
| 558 |
|
| 559 |
file_contents = '''\ |
| 560 |
<?xml version="1.0" encoding="UTF-8"?> |
| 561 |
<!DOCTYPE session SYSTEM "thuban-0.9.dtd"> |
| 562 |
<session xmlns="http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd" |
| 563 |
title="single map&layer"> |
| 564 |
<fileshapesource id="D1" filename="../../Data/iceland/political.shp"/> |
| 565 |
<map title="Test Map"> |
| 566 |
<projection name="Unknown"> |
| 567 |
<parameter value="zone=26"/> |
| 568 |
<parameter value="proj=utm"/> |
| 569 |
<parameter value="ellps=clrk66"/> |
| 570 |
</projection> |
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<layer shapestore="D1" visible="true" |
| 572 |
stroke="#000000" title="My Layer" stroke_width="1" |
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fill="None"/> |
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</map> |
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</session> |
| 576 |
''' |
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|
| 578 |
def test(self): |
| 579 |
"""Test loading a session missing a required attribute""" |
| 580 |
# Don't use assertRaises to make sure that if a session is |
| 581 |
# actually returned it gets destroyed properly. |
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try: |
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self.session = load_session(self.filename()) |
| 584 |
except LoadError, value: |
| 585 |
# Check the actual messge in value to make sure the |
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# LoadError really was about the missing attribute |
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self.assertEquals(str(value), |
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"Element " |
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"(u'http://thuban.intevation.org/dtds/thuban-0.9-dev.dtd'," |
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" u'fileshapesource') requires an attribute 'filetype'") |
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else: |
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self.fail("Missing filetype attribute doesn't raise LoadError") |
| 593 |
|
| 594 |
if __name__ == "__main__": |
| 595 |
unittest.main() |
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