| 1 |
# Copyright (c) 2002, 2003 by Intevation GmbH |
| 2 |
# Authors: |
| 3 |
# Bernhard Herzog <[email protected]> |
| 4 |
# |
| 5 |
# This program is free software under the GPL (>=v2) |
| 6 |
# Read the file COPYING coming with Thuban for details. |
| 7 |
|
| 8 |
""" |
| 9 |
Test loading a thuban session from a file |
| 10 |
|
| 11 |
The tests in this file (test_load.py) are always be the tests for the |
| 12 |
current version of the thuban file format. Tests for older versions can |
| 13 |
be found in the version specific test modules, e.g. test_load_0_2 for |
| 14 |
files created by Thuban 0.2. |
| 15 |
|
| 16 |
Maintenance of the test cases: |
| 17 |
|
| 18 |
When during a development period the file format is changed with respect |
| 19 |
to the last released version for the first, the tests here should be |
| 20 |
copied to the version specific test file. The round-trip tests which |
| 21 |
save the session again and compare the XML files should not be copied |
| 22 |
over as they only make sense here to make sure th that the files checked |
| 23 |
here are actually ones that may have been written by the current thuban |
| 24 |
version. |
| 25 |
""" |
| 26 |
|
| 27 |
__version__ = "$Revision$" |
| 28 |
# $Source$ |
| 29 |
# $Id$ |
| 30 |
|
| 31 |
import os |
| 32 |
import unittest |
| 33 |
|
| 34 |
import support |
| 35 |
support.initthuban() |
| 36 |
|
| 37 |
import postgissupport |
| 38 |
from xmlsupport import sax_eventlist |
| 39 |
|
| 40 |
import dbflib |
| 41 |
|
| 42 |
from Thuban.Model.save import save_session |
| 43 |
from Thuban.Model.load import load_session, parse_color, LoadError, \ |
| 44 |
LoadCancelled |
| 45 |
from Thuban.Model.color import Transparent |
| 46 |
from Thuban.Model.classification import ClassGroupProperties, ClassGroupRange,\ |
| 47 |
ClassGroupSingleton, ClassGroupDefault |
| 48 |
from Thuban.Model.postgisdb import ConnectionError |
| 49 |
|
| 50 |
def filenames_equal(name1, name2): |
| 51 |
"""Return true if the filenames name1 and name2 are equal. |
| 52 |
|
| 53 |
On systems where it is available, simply use os.path.samefile, |
| 54 |
otherwise return whether the normalized versions of the filenames |
| 55 |
according to os.path.normpath are equal. |
| 56 |
""" |
| 57 |
if hasattr(os.path, "samefile"): |
| 58 |
return os.path.samefile(name1, name2) |
| 59 |
return os.path.normpath(name1) == os.path.normpath(name2) |
| 60 |
|
| 61 |
|
| 62 |
|
| 63 |
class LoadSessionTest(support.FileLoadTestCase): |
| 64 |
|
| 65 |
"""Base class for .thuban file loading tests |
| 66 |
|
| 67 |
Basically the same as the FileLoadTestCase, except that all tests |
| 68 |
use the '.thuban' extension by default and that setUp and tearDown |
| 69 |
handle sessions. |
| 70 |
""" |
| 71 |
|
| 72 |
file_extension = ".thuban" |
| 73 |
|
| 74 |
def setUp(self): |
| 75 |
"""Create the test files""" |
| 76 |
support.FileLoadTestCase.setUp(self) |
| 77 |
self.session = None |
| 78 |
|
| 79 |
def tearDown(self): |
| 80 |
if self.session is not None: |
| 81 |
self.session.Destroy() |
| 82 |
self.session = None |
| 83 |
|
| 84 |
|
| 85 |
dtd = "http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd" |
| 86 |
thubanids = [((dtd, n), (None, "id")) for n in |
| 87 |
["fileshapesource", "filetable", "jointable", |
| 88 |
"derivedshapesource"]] |
| 89 |
thubanidrefs = [((dtd, n), (None, m)) for n, m in |
| 90 |
[("layer", "shapestore"), |
| 91 |
("jointable", "left"), |
| 92 |
("jointable", "right"), |
| 93 |
("derivedshapesource", "table"), |
| 94 |
("derivedshapesource", "shapesource")]] |
| 95 |
filenames = [((dtd, n), (None, m)) for n, m in |
| 96 |
[("fileshapesource", "filename"), |
| 97 |
("rasterlayer", "filename"), |
| 98 |
("filetable", "filename")]] |
| 99 |
del n, m, dtd |
| 100 |
|
| 101 |
def check_format(self): |
| 102 |
"""Check whether the file we loaded from matches the one that |
| 103 |
would be written. Call this from each test case after loading |
| 104 |
the session |
| 105 |
""" |
| 106 |
filename = self.temp_file_name(self.id() + ".roundtrip.thuban") |
| 107 |
save_session(self.session, filename) |
| 108 |
el1 = sax_eventlist(filename = filename, ids = self.thubanids, |
| 109 |
idrefs = self.thubanidrefs, |
| 110 |
filenames = self.filenames) |
| 111 |
el2 = sax_eventlist(filename = self.filename(), ids = self.thubanids, |
| 112 |
idrefs = self.thubanidrefs, |
| 113 |
filenames = self.filenames) |
| 114 |
if 0: |
| 115 |
for a, b in zip(el1, el2): |
| 116 |
print a != b and "***************" or "" |
| 117 |
print a |
| 118 |
print b |
| 119 |
self.assertEquals(el1, el2, |
| 120 |
"loaded file not equivalent to the saved file") |
| 121 |
|
| 122 |
|
| 123 |
class ClassificationTest(LoadSessionTest): |
| 124 |
|
| 125 |
""" |
| 126 |
Base class for tests that do some detailed checking of classifications |
| 127 |
""" |
| 128 |
|
| 129 |
def TestLayers(self, layers, expected): |
| 130 |
TITLE = 0 |
| 131 |
NUM_GROUPS = 1 |
| 132 |
CLASSES = 2 |
| 133 |
GROUP_TYPE = 0 |
| 134 |
GROUP_DATA = 1 |
| 135 |
GROUP_LABEL = 2 |
| 136 |
GROUP_PROPS = 3 |
| 137 |
|
| 138 |
eq = self.assertEquals |
| 139 |
|
| 140 |
eq(len(layers), len(expected)) |
| 141 |
|
| 142 |
for layer, data in zip(layers, expected): |
| 143 |
eq(layer.Title(), data[TITLE]) |
| 144 |
|
| 145 |
clazz = layer.GetClassification() |
| 146 |
eq(clazz.GetNumGroups(), data[NUM_GROUPS]) |
| 147 |
eq(clazz.GetNumGroups() + 1, len(data[CLASSES])) |
| 148 |
|
| 149 |
i = 0 |
| 150 |
for group in clazz: |
| 151 |
props = ClassGroupProperties() |
| 152 |
props.SetLineColor( |
| 153 |
parse_color(data[CLASSES][i][GROUP_PROPS][0])) |
| 154 |
props.SetLineWidth(data[CLASSES][i][GROUP_PROPS][1]) |
| 155 |
props.SetFill( |
| 156 |
parse_color(data[CLASSES][i][GROUP_PROPS][2])) |
| 157 |
|
| 158 |
if data[CLASSES][i][GROUP_TYPE] == "default": |
| 159 |
g = ClassGroupDefault(props, data[CLASSES][i][GROUP_LABEL]) |
| 160 |
elif data[CLASSES][i][GROUP_TYPE] == "range": |
| 161 |
g = ClassGroupRange((data[CLASSES][i][GROUP_DATA][0], |
| 162 |
data[CLASSES][i][GROUP_DATA][1]), |
| 163 |
props, data[CLASSES][i][GROUP_LABEL]) |
| 164 |
elif data[CLASSES][i][GROUP_TYPE] == "single": |
| 165 |
g = ClassGroupSingleton(data[CLASSES][i][GROUP_DATA], |
| 166 |
props, data[CLASSES][i][GROUP_LABEL]) |
| 167 |
|
| 168 |
eq(group, g) |
| 169 |
|
| 170 |
i += 1 |
| 171 |
|
| 172 |
|
| 173 |
|
| 174 |
class TestSingleLayer(LoadSessionTest): |
| 175 |
|
| 176 |
# Note: The use of & and non-ascii characters is deliberate. We |
| 177 |
# want to test whether the loading code handles that correctly. |
| 178 |
file_contents = '''\ |
| 179 |
<?xml version="1.0" encoding="UTF-8"?> |
| 180 |
<!DOCTYPE session SYSTEM "thuban-1.0.dtd"> |
| 181 |
<session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd" |
| 182 |
title="Stra\xc3\x9fen & Landmarken"> |
| 183 |
<fileshapesource filetype="shapefile" id="D1" |
| 184 |
filename="../../Data/iceland/political.shp"/> |
| 185 |
<map title="\xc3\x9cbersicht"> |
| 186 |
<projection epsg="32627" name="WGS 84 / UTM zone 27N"> |
| 187 |
<parameter value="datum=WGS84"/> |
| 188 |
<parameter value="ellps=WGS84"/> |
| 189 |
<parameter value="proj=utm"/> |
| 190 |
<parameter value="units=m"/> |
| 191 |
<parameter value="zone=27"/> |
| 192 |
</projection> |
| 193 |
<layer shapestore="D1" visible="true" |
| 194 |
stroke="#000000" title="K\xc3\xbcste" stroke_width="1" |
| 195 |
fill="None"/> |
| 196 |
</map> |
| 197 |
</session> |
| 198 |
''' |
| 199 |
|
| 200 |
def test(self): |
| 201 |
"""Load a session with a single map with a single layer""" |
| 202 |
eq = self.assertEquals |
| 203 |
session = load_session(self.filename()) |
| 204 |
self.session = session |
| 205 |
|
| 206 |
# Check the title |
| 207 |
eq(session.Title(), "Stra\xdfen & Landmarken") |
| 208 |
|
| 209 |
# the session has one map. |
| 210 |
maps = session.Maps() |
| 211 |
eq(len(maps), 1) |
| 212 |
|
| 213 |
# Check the map's attributes |
| 214 |
map = maps[0] |
| 215 |
eq(map.Title(), "\xdcbersicht") |
| 216 |
proj = map.GetProjection() |
| 217 |
eq(proj.GetName(), "WGS 84 / UTM zone 27N") |
| 218 |
eq(proj.EPSGCode(), "32627") |
| 219 |
params = proj.GetAllParameters() |
| 220 |
params.sort() |
| 221 |
eq(params, ["datum=WGS84", "ellps=WGS84", "proj=utm", "units=m", |
| 222 |
"zone=27"]) |
| 223 |
|
| 224 |
# the map has a single layer |
| 225 |
layers = map.Layers() |
| 226 |
eq(len(layers), 1) |
| 227 |
|
| 228 |
# Check the layer attributes |
| 229 |
layer = layers[0] |
| 230 |
eq(layer.Title(), "K\xfcste") |
| 231 |
self.failUnless(filenames_equal(layer.ShapeStore().FileName(), |
| 232 |
os.path.join(self.temp_dir(), |
| 233 |
os.pardir, os.pardir, |
| 234 |
"Data", "iceland", |
| 235 |
"political.shp"))) |
| 236 |
eq(layer.GetClassification().GetDefaultFill(), Transparent) |
| 237 |
eq(layer.GetClassification().GetDefaultLineColor().hex(), "#000000") |
| 238 |
eq(layer.Visible(), True) |
| 239 |
|
| 240 |
self.check_format() |
| 241 |
|
| 242 |
self.session.Destroy() |
| 243 |
self.session = None |
| 244 |
|
| 245 |
def test_leak(self): |
| 246 |
"""Test load_session for resource leaks |
| 247 |
|
| 248 |
The load_session function had a resource leak in that it created |
| 249 |
cyclic references. The objects would have been eventually |
| 250 |
collected by the garbage collector but too late. One symptom is |
| 251 |
that when layers are removed so that the last normal reference |
| 252 |
owned indirectly by the session to a shape store goes away, the |
| 253 |
shape store is not actually removed from the session even though |
| 254 |
the session only keeps weak references because there are still |
| 255 |
references owned by the cyclic garbage. |
| 256 |
""" |
| 257 |
session = load_session(self.filename()) |
| 258 |
self.session = session |
| 259 |
|
| 260 |
# sanity check |
| 261 |
self.assertEquals(len(session.ShapeStores()), 1) |
| 262 |
|
| 263 |
# remove the map. The shapestore should go away too |
| 264 |
session.RemoveMap(session.Maps()[0]) |
| 265 |
self.assertEquals(len(session.ShapeStores()), 0) |
| 266 |
|
| 267 |
|
| 268 |
class TestLayerVisibility(LoadSessionTest): |
| 269 |
|
| 270 |
file_contents = '''\ |
| 271 |
<?xml version="1.0" encoding="UTF-8"?> |
| 272 |
<!DOCTYPE session SYSTEM "thuban-1.0.dtd"> |
| 273 |
<session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd" |
| 274 |
title="single map&layer"> |
| 275 |
<fileshapesource filetype="shapefile" id="D1" |
| 276 |
filename="../../Data/iceland/political.shp"/> |
| 277 |
<map title="Test Map"> |
| 278 |
<projection name="Unknown"> |
| 279 |
<parameter value="zone=26"/> |
| 280 |
<parameter value="proj=utm"/> |
| 281 |
<parameter value="ellps=clrk66"/> |
| 282 |
</projection> |
| 283 |
<layer shapestore="D1" visible="false" stroke="#000000" |
| 284 |
title="My Layer" stroke_width="1" fill="None"/> |
| 285 |
</map> |
| 286 |
</session> |
| 287 |
''' |
| 288 |
|
| 289 |
def test(self): |
| 290 |
"""Test that the visible flag is correctly loaded for a layer.""" |
| 291 |
eq = self.assertEquals |
| 292 |
session = load_session(self.filename()) |
| 293 |
self.session = session |
| 294 |
maps = session.Maps() |
| 295 |
eq(len(maps), 1) |
| 296 |
map = maps[0] |
| 297 |
layers = map.Layers() |
| 298 |
eq(len(layers), 1) |
| 299 |
layer = layers[0] |
| 300 |
|
| 301 |
eq(layer.Visible(), False) |
| 302 |
|
| 303 |
self.check_format() |
| 304 |
|
| 305 |
|
| 306 |
class TestClassification(ClassificationTest): |
| 307 |
|
| 308 |
file_contents = '''\ |
| 309 |
<?xml version="1.0" encoding="UTF-8"?> |
| 310 |
<!DOCTYPE session SYSTEM "thuban.dtd"> |
| 311 |
<session title="single map&layer"> |
| 312 |
<map title="Test Map"> |
| 313 |
<projection> |
| 314 |
<parameter value="zone=26"/> |
| 315 |
<parameter value="proj=utm"/> |
| 316 |
<parameter value="ellps=clrk66"/> |
| 317 |
</projection> |
| 318 |
<layer title="My Layer" stroke_width="1" fill="None" |
| 319 |
filename="../../Data/iceland/political.shp" |
| 320 |
stroke="#000000"> |
| 321 |
<classification field="POPYREG" field_type="string"> |
| 322 |
<clnull> |
| 323 |
<cldata stroke="#000000" stroke_width="1" fill="None"/> |
| 324 |
</clnull> |
| 325 |
<clpoint value="1"> |
| 326 |
<cldata stroke="#000000" stroke_width="2" fill="None"/> |
| 327 |
</clpoint> |
| 328 |
<clpoint value="1"> |
| 329 |
<cldata stroke="#000000" stroke_width="10" fill="None"/> |
| 330 |
</clpoint> |
| 331 |
<clpoint value="\xc3\xa4\xc3\xb6\xc3\xbc" |
| 332 |
label="\xc3\x9cml\xc3\xa4uts"> |
| 333 |
<cldata fill="None" stroke="#000000" stroke_width="1"/> |
| 334 |
</clpoint> |
| 335 |
</classification> |
| 336 |
</layer> |
| 337 |
<layer title="My Layer 2" stroke_width="1" fill="None" |
| 338 |
filename="../../Data/iceland/political.shp" |
| 339 |
stroke="#000000"> |
| 340 |
<classification field="AREA" field_type="double"> |
| 341 |
<clnull> |
| 342 |
<cldata stroke="#000000" stroke_width="2" fill="None"/> |
| 343 |
</clnull> |
| 344 |
<clrange min="0" max="1"> |
| 345 |
<cldata stroke="#111111" stroke_width="1" fill="None"/> |
| 346 |
</clrange> |
| 347 |
<clpoint value=".5"> |
| 348 |
<cldata stroke="#000000" stroke_width="1" fill="#111111"/> |
| 349 |
</clpoint> |
| 350 |
<clrange min="-1" max="0"> |
| 351 |
<cldata stroke="#000000" stroke_width="1" fill="None"/> |
| 352 |
</clrange> |
| 353 |
<clpoint value="-.5"> |
| 354 |
<cldata stroke="#000000" stroke_width="1" fill="None"/> |
| 355 |
</clpoint> |
| 356 |
</classification> |
| 357 |
</layer> |
| 358 |
</map> |
| 359 |
</session> |
| 360 |
''' |
| 361 |
|
| 362 |
def test(self): |
| 363 |
"""Load a Thuban session with a map and classified layers.""" |
| 364 |
session = load_session(self.filename()) |
| 365 |
self.session = session |
| 366 |
|
| 367 |
map = self.session.Maps()[0] # only one map in the sample |
| 368 |
|
| 369 |
expected = [("My Layer", 3, |
| 370 |
[("default", (), "", |
| 371 |
("#000000", 1, "None")), |
| 372 |
("single", "1", "", |
| 373 |
("#000000", 2, "None")), |
| 374 |
("single", "1", "", |
| 375 |
("#000000", 10, "None")), |
| 376 |
("single", "\xe4\xf6\xfc", "\xdcml\xe4uts", |
| 377 |
("#000000", 1, "None"))]), |
| 378 |
("My Layer 2", 4, |
| 379 |
[("default", (), "", |
| 380 |
("#000000", 2, "None")), |
| 381 |
("range", (0, 1), "", |
| 382 |
("#111111", 1, "None")), |
| 383 |
("single", .5, "", |
| 384 |
("#000000", 1, "#111111")), |
| 385 |
("range", (-1, 0), "", |
| 386 |
("#000000", 1, "None")), |
| 387 |
("single", -.5, "", |
| 388 |
("#000000", 1, "None"))])] |
| 389 |
|
| 390 |
self.TestLayers(map.Layers(), expected) |
| 391 |
|
| 392 |
|
| 393 |
class TestLabels(ClassificationTest): |
| 394 |
|
| 395 |
file_contents = '''\ |
| 396 |
<?xml version="1.0" encoding="UTF-8"?> |
| 397 |
<!DOCTYPE session SYSTEM "thuban-1.0.dtd"> |
| 398 |
<session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd" |
| 399 |
title="single map&layer"> |
| 400 |
<fileshapesource filetype="shapefile" id="D1" |
| 401 |
filename="../../Data/iceland/political.shp"/> |
| 402 |
<map title="Test Map"> |
| 403 |
<projection name="Unknown"> |
| 404 |
<parameter value="zone=26"/> |
| 405 |
<parameter value="proj=utm"/> |
| 406 |
<parameter value="ellps=clrk66"/> |
| 407 |
</projection> |
| 408 |
<layer shapestore="D1" visible="true" stroke="#000000" |
| 409 |
title="My Layer" stroke_width="1" fill="None"> |
| 410 |
<classification field="POPYREG" field_type="string"> |
| 411 |
<clnull label="hallo"> |
| 412 |
<cldata stroke="#000000" stroke_width="1" fill="None"/> |
| 413 |
</clnull> |
| 414 |
<clpoint label="welt" value="1"> |
| 415 |
<cldata stroke="#000000" stroke_width="2" fill="None"/> |
| 416 |
</clpoint> |
| 417 |
</classification> |
| 418 |
</layer> |
| 419 |
</map> |
| 420 |
</session> |
| 421 |
''' |
| 422 |
|
| 423 |
def test(self): |
| 424 |
"""Load a session and test for reading the group labels.""" |
| 425 |
eq = self.assertEquals |
| 426 |
session = load_session(self.filename()) |
| 427 |
self.session = session |
| 428 |
|
| 429 |
map = self.session.Maps()[0] # only one map in the sample |
| 430 |
|
| 431 |
expected = [("My Layer", 1, |
| 432 |
[("default", (), "hallo", |
| 433 |
("#000000", 1, "None")), |
| 434 |
("single", "1", "welt", |
| 435 |
("#000000", 2, "None"))])] |
| 436 |
|
| 437 |
self.TestLayers(map.Layers(), expected) |
| 438 |
self.check_format() |
| 439 |
|
| 440 |
|
| 441 |
class TestLayerProjection(LoadSessionTest): |
| 442 |
|
| 443 |
file_contents = '''\ |
| 444 |
<?xml version="1.0" encoding="UTF-8"?> |
| 445 |
<!DOCTYPE session SYSTEM "thuban-1.0.dtd"> |
| 446 |
<session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd" |
| 447 |
title="single map&layer"> |
| 448 |
<fileshapesource filetype="shapefile" id="D2" |
| 449 |
filename="../../Data/iceland/roads-line.shp"/> |
| 450 |
<fileshapesource filetype="shapefile" id="D4" |
| 451 |
filename="../../Data/iceland/political.shp"/> |
| 452 |
<map title="Test Map"> |
| 453 |
<projection name="Unknown"> |
| 454 |
<parameter value="zone=26"/> |
| 455 |
<parameter value="proj=utm"/> |
| 456 |
<parameter value="ellps=clrk66"/> |
| 457 |
</projection> |
| 458 |
<layer shapestore="D4" visible="true" stroke="#000000" |
| 459 |
title="My Layer" stroke_width="1" fill="None"> |
| 460 |
<projection name="hello"> |
| 461 |
<parameter value="zone=13"/> |
| 462 |
<parameter value="proj=tmerc"/> |
| 463 |
<parameter value="ellps=clrk66"/> |
| 464 |
</projection> |
| 465 |
<classification field="POPYREG" field_type="string"> |
| 466 |
<clnull label="hallo"> |
| 467 |
<cldata stroke="#000000" stroke_width="1" fill="None"/> |
| 468 |
</clnull> |
| 469 |
<clpoint label="welt" value="1"> |
| 470 |
<cldata stroke="#000000" stroke_width="2" fill="None"/> |
| 471 |
</clpoint> |
| 472 |
</classification> |
| 473 |
</layer> |
| 474 |
<layer shapestore="D2" visible="true" stroke="#000000" |
| 475 |
title="My Layer" stroke_width="1" fill="None"> |
| 476 |
<projection name="Unknown"> |
| 477 |
<parameter value="proj=lcc"/> |
| 478 |
<parameter value="lat_1=10"/> |
| 479 |
<parameter value="lat_2=20"/> |
| 480 |
<parameter value="ellps=clrk66"/> |
| 481 |
</projection> |
| 482 |
</layer> |
| 483 |
</map> |
| 484 |
</session> |
| 485 |
''' |
| 486 |
|
| 487 |
def test(self): |
| 488 |
"""Test loading layers with projections""" |
| 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 |
layers = map.Layers() # two layers in the sample |
| 498 |
|
| 499 |
# test layer with a named projection |
| 500 |
proj = layers[0].GetProjection() |
| 501 |
neq(proj, None) |
| 502 |
eq(proj.GetName(), "hello") |
| 503 |
eq(proj.GetParameter("proj"), "tmerc") |
| 504 |
eq(proj.GetParameter("zone"), "13") |
| 505 |
eq(proj.GetParameter("ellps"), "clrk66") |
| 506 |
|
| 507 |
# test layer with an unnamed projection |
| 508 |
proj = layers[1].GetProjection() |
| 509 |
neq(proj, None) |
| 510 |
eq(proj.GetName(), "Unknown") |
| 511 |
eq(proj.GetParameter("proj"), "lcc") |
| 512 |
eq(proj.GetParameter("lat_1"), "10") |
| 513 |
eq(proj.GetParameter("lat_2"), "20") |
| 514 |
eq(proj.GetParameter("ellps"), "clrk66") |
| 515 |
|
| 516 |
self.check_format() |
| 517 |
|
| 518 |
|
| 519 |
class TestRasterLayer(LoadSessionTest): |
| 520 |
|
| 521 |
file_contents = '''\ |
| 522 |
<?xml version="1.0" encoding="UTF-8"?> |
| 523 |
<!DOCTYPE session SYSTEM "thuban-1.0.dtd"> |
| 524 |
<session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd" |
| 525 |
title="single map&layer"> |
| 526 |
<map title="Test Map"> |
| 527 |
<rasterlayer visible="false" filename="../../Data/iceland/island.tif" |
| 528 |
title="My RasterLayer"/> |
| 529 |
</map> |
| 530 |
</session> |
| 531 |
''' |
| 532 |
|
| 533 |
def test(self): |
| 534 |
eq = self.assertEquals |
| 535 |
neq = self.assertNotEqual |
| 536 |
|
| 537 |
session = load_session(self.filename()) |
| 538 |
self.session = session |
| 539 |
|
| 540 |
map = self.session.Maps()[0] # only one map in the sample |
| 541 |
|
| 542 |
layer = map.Layers()[0] # one layer in the sample |
| 543 |
|
| 544 |
eq(layer.Title(), "My RasterLayer") |
| 545 |
self.failIf(layer.Visible()) |
| 546 |
self.failUnless(filenames_equal(layer.GetImageFilename(), |
| 547 |
os.path.join(self.temp_dir(), |
| 548 |
os.pardir, os.pardir, |
| 549 |
"Data", "iceland", |
| 550 |
"island.tif"))) |
| 551 |
self.check_format() |
| 552 |
|
| 553 |
|
| 554 |
class TestJoinedTable(LoadSessionTest): |
| 555 |
|
| 556 |
file_contents = '''<?xml version="1.0" encoding="UTF-8"?> |
| 557 |
<!DOCTYPE session SYSTEM "thuban-1.0.dtd"> |
| 558 |
<session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd" title="A Joined Table session"> |
| 559 |
<fileshapesource filetype="shapefile" id="D137227612" |
| 560 |
filename="../../Data/iceland/roads-line.shp"/> |
| 561 |
<filetable filetype="DBF" filename="load_joinedtable.dbf" id="D136171140" |
| 562 |
title="Some Title"/> |
| 563 |
<jointable id="D136169900" title="Joined" |
| 564 |
right="D136171140" left="D137227612" |
| 565 |
leftcolumn="RDLNTYPE" rightcolumn="RDTYPE" |
| 566 |
jointype="LEFT OUTER"/> |
| 567 |
<derivedshapesource table="D136169900" shapesource="D137227612" |
| 568 |
id="D136170932"/> |
| 569 |
<map title="Test Map"> |
| 570 |
<layer shapestore="D136170932" visible="true" stroke="#000000" |
| 571 |
title="My Layer" stroke_width="1" fill="None"/> |
| 572 |
</map> |
| 573 |
</session> |
| 574 |
''' |
| 575 |
|
| 576 |
def setUp(self): |
| 577 |
"""Extend inherited method to create the dbffile for the join""" |
| 578 |
LoadSessionTest.setUp(self) |
| 579 |
dbffile = self.temp_file_name("load_joinedtable.dbf") |
| 580 |
dbf = dbflib.create(dbffile) |
| 581 |
dbf.add_field("RDTYPE", dbflib.FTInteger, 10, 0) |
| 582 |
dbf.add_field("TEXT", dbflib.FTString, 10, 0) |
| 583 |
dbf.write_record(0, {'RDTYPE': 8, "TEXT": "foo"}) |
| 584 |
dbf.write_record(1, {'RDTYPE': 2, "TEXT": "bar"}) |
| 585 |
dbf.write_record(2, {'RDTYPE': 3, "TEXT": "baz"}) |
| 586 |
dbf.close() |
| 587 |
|
| 588 |
def test(self): |
| 589 |
"""Test loading a session containing a joined table""" |
| 590 |
session = load_session(self.filename()) |
| 591 |
self.session = session |
| 592 |
|
| 593 |
tables = session.Tables() |
| 594 |
self.assertEquals(len(tables), 3) |
| 595 |
# FIXME: The tests shouldn't assume a certain order of the tables |
| 596 |
self.assertEquals(tables[0].Title(), "Some Title") |
| 597 |
self.assertEquals(tables[1].Title(), "Joined") |
| 598 |
self.assertEquals(tables[1].JoinType(), "LEFT OUTER") |
| 599 |
self.check_format() |
| 600 |
|
| 601 |
|
| 602 |
|
| 603 |
class TestPostGISLayer(LoadSessionTest): |
| 604 |
|
| 605 |
file_contents = '''<?xml version="1.0" encoding="UTF-8"?> |
| 606 |
<!DOCTYPE session SYSTEM "thuban-1.0.dtd"> |
| 607 |
<session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd" |
| 608 |
title="unnamed session"> |
| 609 |
<dbconnection port="%(port)s" host="%(host)s" user="%(user)s" |
| 610 |
dbtype="postgis" id="D142684948" dbname="%(dbname)s"/> |
| 611 |
<dbshapesource tablename="landmarks" id="D143149420" dbconn="D142684948"/> |
| 612 |
<map title="unnamed map"> |
| 613 |
<layer shapestore="D143149420" visible="true" stroke="#000000" |
| 614 |
title="landmarks" stroke_width="1" fill="None"/> |
| 615 |
</map> |
| 616 |
</session> |
| 617 |
''' |
| 618 |
|
| 619 |
def setUp(self): |
| 620 |
"""Extend the inherited method to start the postgis server |
| 621 |
|
| 622 |
Furthermore, patch the file contents with the real postgis db |
| 623 |
information |
| 624 |
""" |
| 625 |
postgissupport.skip_if_no_postgis() |
| 626 |
self.server = postgissupport.get_test_server() |
| 627 |
self.postgisdb = self.server.get_default_static_data_db() |
| 628 |
|
| 629 |
self.file_contents = self.__class__.file_contents % { |
| 630 |
"dbname": self.postgisdb.dbname, |
| 631 |
"user": self.server.user_name, |
| 632 |
"port": self.server.port, |
| 633 |
"host": self.server.host} |
| 634 |
LoadSessionTest.setUp(self) |
| 635 |
|
| 636 |
def test(self): |
| 637 |
"""Test loading a session containing a postgis shapestore""" |
| 638 |
session = load_session(self.filename()) |
| 639 |
self.session = session |
| 640 |
connections = session.DBConnections() |
| 641 |
self.assertEquals(len(connections), 1) |
| 642 |
conn = connections[0] |
| 643 |
for attr, value in [("host", self.server.host), |
| 644 |
("port", str(self.server.port)), |
| 645 |
("user", self.server.user_name), |
| 646 |
("dbname", self.postgisdb.dbname)]: |
| 647 |
self.assertEquals(getattr(conn, attr), value) |
| 648 |
layer = session.Maps()[0].Layers()[0] |
| 649 |
self.failUnless(layer.ShapeStore().DBConnection() is conn) |
| 650 |
|
| 651 |
|
| 652 |
class TestPostGISLayerPassword(LoadSessionTest): |
| 653 |
|
| 654 |
file_contents = '''<?xml version="1.0" encoding="UTF-8"?> |
| 655 |
<!DOCTYPE session SYSTEM "thuban-1.0.dtd"> |
| 656 |
<session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd" |
| 657 |
title="unnamed session"> |
| 658 |
<dbconnection port="%(port)s" host="%(host)s" user="%(user)s" |
| 659 |
dbtype="postgis" id="D142684948" dbname="%(dbname)s"/> |
| 660 |
<dbshapesource tablename="landmarks" id="D143149420" dbconn="D142684948"/> |
| 661 |
<map title="unnamed map"> |
| 662 |
<layer shapestore="D143149420" visible="true" stroke="#000000" |
| 663 |
title="landmarks" stroke_width="1" fill="None"/> |
| 664 |
</map> |
| 665 |
</session> |
| 666 |
''' |
| 667 |
|
| 668 |
def setUp(self): |
| 669 |
"""Extend the inherited method to start the postgis server |
| 670 |
|
| 671 |
Furthermore, patch the file contents with the real postgis db |
| 672 |
information |
| 673 |
""" |
| 674 |
postgissupport.skip_if_no_postgis() |
| 675 |
self.server = postgissupport.get_test_server() |
| 676 |
self.postgisdb = self.server.get_default_static_data_db() |
| 677 |
|
| 678 |
self.file_contents = self.__class__.file_contents % { |
| 679 |
"dbname": self.postgisdb.dbname, |
| 680 |
"user": self.server.user_name, |
| 681 |
"port": self.server.port, |
| 682 |
"host": self.server.host} |
| 683 |
LoadSessionTest.setUp(self) |
| 684 |
|
| 685 |
self.db_connection_callback_called = False |
| 686 |
self.server.require_authentication(True) |
| 687 |
|
| 688 |
def tearDown(self): |
| 689 |
"""Extend the inherited method to switch off postgresql authentication |
| 690 |
""" |
| 691 |
self.server.require_authentication(False) |
| 692 |
LoadSessionTest.tearDown(self) |
| 693 |
|
| 694 |
def db_connection_callback(self, params, message): |
| 695 |
"""Implementation of Thuban.Model.hooks.query_db_connection_parameters |
| 696 |
""" |
| 697 |
self.assertEquals(params, |
| 698 |
{"dbname": self.postgisdb.dbname, |
| 699 |
"user": self.server.user_name, |
| 700 |
"port": str(self.server.port), |
| 701 |
"host": self.server.host}) |
| 702 |
self.db_connection_callback_called = True |
| 703 |
params = params.copy() |
| 704 |
params["password"] = self.server.user_password |
| 705 |
return params |
| 706 |
|
| 707 |
def test_with_callback(self): |
| 708 |
"""Test loading a session with postgis, authentication and a callback |
| 709 |
""" |
| 710 |
session = load_session(self.filename(), |
| 711 |
db_connection_callback = self.db_connection_callback) |
| 712 |
self.session = session |
| 713 |
connections = session.DBConnections() |
| 714 |
self.assertEquals(len(connections), 1) |
| 715 |
conn = connections[0] |
| 716 |
for attr, value in [("host", self.server.host), |
| 717 |
("port", str(self.server.port)), |
| 718 |
("user", self.server.user_name), |
| 719 |
("dbname", self.postgisdb.dbname)]: |
| 720 |
self.assertEquals(getattr(conn, attr), value) |
| 721 |
layer = session.Maps()[0].Layers()[0] |
| 722 |
self.failUnless(layer.ShapeStore().DBConnection() is conn) |
| 723 |
self.failUnless(self.db_connection_callback_called) |
| 724 |
|
| 725 |
def test_without_callback(self): |
| 726 |
"""Test loading a session with postgis, authentication and no callback |
| 727 |
""" |
| 728 |
# A password is required and there's no callback, so we should |
| 729 |
# get a ConnectionError |
| 730 |
self.assertRaises(ConnectionError, load_session, self.filename()) |
| 731 |
|
| 732 |
def test_cancel(self): |
| 733 |
"""Test loading a session with postgis and cancelling authentication |
| 734 |
""" |
| 735 |
def cancel(*args): |
| 736 |
self.db_connection_callback_called = True |
| 737 |
return None |
| 738 |
|
| 739 |
# If the user cancels, i.e. if the callbakc returns None, a |
| 740 |
# LoadCancelled exception is raised. |
| 741 |
self.assertRaises(LoadCancelled, |
| 742 |
load_session, self.filename(), cancel) |
| 743 |
self.failUnless(self.db_connection_callback_called) |
| 744 |
|
| 745 |
|
| 746 |
class TestLoadError(LoadSessionTest): |
| 747 |
|
| 748 |
file_contents = '''\ |
| 749 |
<?xml version="1.0" encoding="UTF-8"?> |
| 750 |
<!DOCTYPE session SYSTEM "thuban-1.0.dtd"> |
| 751 |
<session xmlns="http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd" |
| 752 |
title="single map&layer"> |
| 753 |
<fileshapesource id="D1" filename="../../Data/iceland/political.shp"/> |
| 754 |
<map title="Test Map"> |
| 755 |
<projection name="Unknown"> |
| 756 |
<parameter value="zone=26"/> |
| 757 |
<parameter value="proj=utm"/> |
| 758 |
<parameter value="ellps=clrk66"/> |
| 759 |
</projection> |
| 760 |
<layer shapestore="D1" visible="true" |
| 761 |
stroke="#000000" title="My Layer" stroke_width="1" |
| 762 |
fill="None"/> |
| 763 |
</map> |
| 764 |
</session> |
| 765 |
''' |
| 766 |
|
| 767 |
def test(self): |
| 768 |
"""Test loading a session missing a required attribute""" |
| 769 |
# Don't use assertRaises to make sure that if a session is |
| 770 |
# actually returned it gets destroyed properly. |
| 771 |
try: |
| 772 |
self.session = load_session(self.filename()) |
| 773 |
except LoadError, value: |
| 774 |
# Check the actual messge in value to make sure the |
| 775 |
# LoadError really was about the missing attribute |
| 776 |
self.assertEquals(str(value), |
| 777 |
"Element " |
| 778 |
"(u'http://thuban.intevation.org/dtds/thuban-1.0-dev.dtd'," |
| 779 |
" u'fileshapesource') requires an attribute 'filetype'") |
| 780 |
else: |
| 781 |
self.fail("Missing filetype attribute doesn't raise LoadError") |
| 782 |
|
| 783 |
if __name__ == "__main__": |
| 784 |
support.run_tests() |
Parent Directory
| 
Revision Log