author | Sverre Rabbelier <sverre@rabbelier.nl> |
Mon, 25 May 2009 02:40:11 +0200 | |
changeset 2339 | e1ac4aacfb4f |
parent 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
323
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
1 |
import os, os.path, unittest |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
2 |
from django.contrib.gis.gdal import DataSource, Envelope, OGRException, OGRIndexError |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
3 |
from django.contrib.gis.gdal.field import OFTReal, OFTInteger, OFTString |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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4 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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5 |
# Path for SHP files |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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6 |
data_path = os.path.join(os.path.dirname(__file__), 'data') |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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7 |
def get_ds_file(name, ext): |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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8 |
return os.sep.join([data_path, name, name + '.%s' % ext]) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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9 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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10 |
# Test SHP data source object |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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11 |
class TestDS: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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12 |
def __init__(self, name, **kwargs): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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13 |
ext = kwargs.pop('ext', 'shp') |
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Load ../vendor/django into trunk/app/django.
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parents:
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14 |
self.ds = get_ds_file(name, ext) |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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15 |
for key, value in kwargs.items(): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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16 |
setattr(self, key, value) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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17 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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18 |
# List of acceptable data sources. |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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19 |
ds_list = (TestDS('test_point', nfeat=5, nfld=3, geom='POINT', gtype=1, driver='ESRI Shapefile', |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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20 |
fields={'dbl' : OFTReal, 'int' : OFTInteger, 'str' : OFTString,}, |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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21 |
extent=(-1.35011,0.166623,-0.524093,0.824508), # Got extent from QGIS |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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22 |
srs_wkt='GEOGCS["GCS_WGS_1984",DATUM["WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]', |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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23 |
field_values={'dbl' : [float(i) for i in range(1, 6)], 'int' : range(1, 6), 'str' : [str(i) for i in range(1, 6)]}, |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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24 |
fids=range(5)), |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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25 |
TestDS('test_vrt', ext='vrt', nfeat=3, nfld=3, geom='POINT', gtype=1, driver='VRT', |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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26 |
fields={'POINT_X' : OFTString, 'POINT_Y' : OFTString, 'NUM' : OFTString}, # VRT uses CSV, which all types are OFTString. |
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parents:
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27 |
extent=(1.0, 2.0, 100.0, 523.5), # Min/Max from CSV |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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28 |
field_values={'POINT_X' : ['1.0', '5.0', '100.0'], 'POINT_Y' : ['2.0', '23.0', '523.5'], 'NUM' : ['5', '17', '23']}, |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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29 |
fids=range(1,4)), |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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30 |
TestDS('test_poly', nfeat=3, nfld=3, geom='POLYGON', gtype=3, |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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31 |
driver='ESRI Shapefile', |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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32 |
fields={'float' : OFTReal, 'int' : OFTInteger, 'str' : OFTString,}, |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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33 |
extent=(-1.01513,-0.558245,0.161876,0.839637), # Got extent from QGIS |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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34 |
srs_wkt='GEOGCS["GCS_WGS_1984",DATUM["WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]'), |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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35 |
) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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36 |
|
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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37 |
bad_ds = (TestDS('foo'), |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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38 |
) |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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39 |
|
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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40 |
class DataSourceTest(unittest.TestCase): |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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41 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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42 |
def test01_valid_shp(self): |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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43 |
"Testing valid SHP Data Source files." |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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44 |
|
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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45 |
for source in ds_list: |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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46 |
# Loading up the data source |
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parents:
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47 |
ds = DataSource(source.ds) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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48 |
|
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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49 |
# Making sure the layer count is what's expected (only 1 layer in a SHP file) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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50 |
self.assertEqual(1, len(ds)) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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51 |
|
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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52 |
# Making sure GetName works |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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53 |
self.assertEqual(source.ds, ds.name) |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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54 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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55 |
# Making sure the driver name matches up |
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parents:
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56 |
self.assertEqual(source.driver, str(ds.driver)) |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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57 |
|
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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58 |
# Making sure indexing works |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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59 |
try: |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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60 |
ds[len(ds)] |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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61 |
except OGRIndexError: |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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62 |
pass |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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63 |
else: |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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64 |
self.fail('Expected an IndexError!') |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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65 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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66 |
def test02_invalid_shp(self): |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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67 |
"Testing invalid SHP files for the Data Source." |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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68 |
for source in bad_ds: |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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69 |
self.assertRaises(OGRException, DataSource, source.ds) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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70 |
|
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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71 |
def test03a_layers(self): |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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72 |
"Testing Data Source Layers." |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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73 |
print "\nBEGIN - expecting out of range feature id error; safe to ignore.\n" |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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74 |
for source in ds_list: |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
75 |
ds = DataSource(source.ds) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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76 |
|
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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77 |
# Incrementing through each layer, this tests DataSource.__iter__ |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
78 |
for layer in ds: |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
79 |
# Making sure we get the number of features we expect |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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80 |
self.assertEqual(len(layer), source.nfeat) |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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81 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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82 |
# Making sure we get the number of fields we expect |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
83 |
self.assertEqual(source.nfld, layer.num_fields) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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84 |
self.assertEqual(source.nfld, len(layer.fields)) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
85 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
86 |
# Testing the layer's extent (an Envelope), and it's properties |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
87 |
self.assertEqual(True, isinstance(layer.extent, Envelope)) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
88 |
self.assertAlmostEqual(source.extent[0], layer.extent.min_x, 5) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
89 |
self.assertAlmostEqual(source.extent[1], layer.extent.min_y, 5) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
90 |
self.assertAlmostEqual(source.extent[2], layer.extent.max_x, 5) |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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91 |
self.assertAlmostEqual(source.extent[3], layer.extent.max_y, 5) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
92 |
|
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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93 |
# Now checking the field names. |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
94 |
flds = layer.fields |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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95 |
for f in flds: self.assertEqual(True, f in source.fields) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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96 |
|
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
97 |
# Negative FIDs are not allowed. |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
98 |
self.assertRaises(OGRIndexError, layer.__getitem__, -1) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
99 |
self.assertRaises(OGRIndexError, layer.__getitem__, 50000) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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100 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff
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|
101 |
if hasattr(source, 'field_values'): |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
102 |
fld_names = source.field_values.keys() |
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|
103 |
|
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|
104 |
# Testing `Layer.get_fields` (which uses Layer.__iter__) |
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105 |
for fld_name in fld_names: |
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106 |
self.assertEqual(source.field_values[fld_name], layer.get_fields(fld_name)) |
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|
107 |
|
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|
108 |
# Testing `Layer.__getitem__`. |
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|
109 |
for i, fid in enumerate(source.fids): |
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110 |
feat = layer[fid] |
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|
111 |
self.assertEqual(fid, feat.fid) |
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|
112 |
# Maybe this should be in the test below, but we might as well test |
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113 |
# the feature values here while in this loop. |
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|
114 |
for fld_name in fld_names: |
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115 |
self.assertEqual(source.field_values[fld_name][i], feat.get(fld_name)) |
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|
116 |
print "\nEND - expecting out of range feature id error; safe to ignore." |
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|
117 |
|
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|
118 |
def test03b_layer_slice(self): |
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119 |
"Test indexing and slicing on Layers." |
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120 |
# Using the first data-source because the same slice |
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121 |
# can be used for both the layer and the control values. |
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122 |
source = ds_list[0] |
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123 |
ds = DataSource(source.ds) |
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124 |
|
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125 |
sl = slice(1, 3) |
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126 |
feats = ds[0][sl] |
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127 |
|
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128 |
for fld_name in ds[0].fields: |
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129 |
test_vals = [feat.get(fld_name) for feat in feats] |
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130 |
control_vals = source.field_values[fld_name][sl] |
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131 |
self.assertEqual(control_vals, test_vals) |
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132 |
|
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|
133 |
def test04_features(self): |
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134 |
"Testing Data Source Features." |
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|
135 |
for source in ds_list: |
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|
136 |
ds = DataSource(source.ds) |
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|
137 |
|
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|
138 |
# Incrementing through each layer |
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|
139 |
for layer in ds: |
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|
140 |
# Incrementing through each feature in the layer |
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|
141 |
for feat in layer: |
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|
142 |
# Making sure the number of fields, and the geometry type |
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|
143 |
# are what's expected. |
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|
144 |
self.assertEqual(source.nfld, len(list(feat))) |
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|
145 |
self.assertEqual(source.gtype, feat.geom_type) |
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|
146 |
|
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|
147 |
# Making sure the fields match to an appropriate OFT type. |
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|
148 |
for k, v in source.fields.items(): |
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|
149 |
# Making sure we get the proper OGR Field instance, using |
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|
150 |
# a string value index for the feature. |
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|
151 |
self.assertEqual(True, isinstance(feat[k], v)) |
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|
152 |
|
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|
153 |
# Testing Feature.__iter__ |
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|
154 |
for fld in feat: self.assertEqual(True, fld.name in source.fields.keys()) |
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|
155 |
|
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|
156 |
def test05_geometries(self): |
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|
157 |
"Testing Geometries from Data Source Features." |
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|
158 |
for source in ds_list: |
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|
159 |
ds = DataSource(source.ds) |
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|
160 |
|
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|
161 |
# Incrementing through each layer and feature. |
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|
162 |
for layer in ds: |
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parents:
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|
163 |
for feat in layer: |
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|
164 |
g = feat.geom |
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|
165 |
|
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|
166 |
# Making sure we get the right Geometry name & type |
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|
167 |
self.assertEqual(source.geom, g.geom_name) |
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parents:
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|
168 |
self.assertEqual(source.gtype, g.geom_type) |
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|
169 |
|
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|
170 |
# Making sure the SpatialReference is as expected. |
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|
171 |
if hasattr(source, 'srs_wkt'): |
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|
172 |
self.assertEqual(source.srs_wkt, g.srs.wkt) |
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|
173 |
|
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|
174 |
|
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|
175 |
def suite(): |
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|
176 |
s = unittest.TestSuite() |
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|
177 |
s.addTest(unittest.makeSuite(DataSourceTest)) |
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|
178 |
return s |
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|
179 |
|
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|
180 |
def run(verbosity=2): |
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|
181 |
unittest.TextTestRunner(verbosity=verbosity).run(suite()) |