author | Todd Larsen <tlarsen@google.com> |
Sat, 18 Oct 2008 01:47:02 +0000 | |
changeset 374 | 9363b9dc2983 |
parent 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
323
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1 |
""" |
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2 |
A limited test module is used for a limited spatial database. |
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3 |
""" |
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4 |
import os, unittest |
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5 |
from models import Country, City, State, Feature |
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from django.contrib.gis import gdal |
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7 |
from django.contrib.gis.geos import * |
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8 |
from django.core.exceptions import ImproperlyConfigured |
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9 |
|
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10 |
class GeoModelTest(unittest.TestCase): |
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|
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def test01_initial_sql(self): |
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13 |
"Testing geographic initial SQL." |
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14 |
# Ensuring that data was loaded from initial SQL. |
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15 |
self.assertEqual(2, Country.objects.count()) |
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self.assertEqual(8, City.objects.count()) |
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self.assertEqual(2, State.objects.count()) |
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18 |
|
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19 |
def test02_proxy(self): |
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20 |
"Testing Lazy-Geometry support (using the GeometryProxy)." |
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21 |
#### Testing on a Point |
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22 |
pnt = Point(0, 0) |
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23 |
nullcity = City(name='NullCity', point=pnt) |
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24 |
nullcity.save() |
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25 |
|
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26 |
# Making sure TypeError is thrown when trying to set with an |
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27 |
# incompatible type. |
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28 |
for bad in [5, 2.0, LineString((0, 0), (1, 1))]: |
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29 |
try: |
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30 |
nullcity.point = bad |
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except TypeError: |
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32 |
pass |
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33 |
else: |
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self.fail('Should throw a TypeError') |
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|
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36 |
# Now setting with a compatible GEOS Geometry, saving, and ensuring |
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37 |
# the save took, notice no SRID is explicitly set. |
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38 |
new = Point(5, 23) |
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39 |
nullcity.point = new |
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40 |
|
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41 |
# Ensuring that the SRID is automatically set to that of the |
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42 |
# field after assignment, but before saving. |
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43 |
self.assertEqual(4326, nullcity.point.srid) |
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44 |
nullcity.save() |
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45 |
|
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46 |
# Ensuring the point was saved correctly after saving |
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47 |
self.assertEqual(new, City.objects.get(name='NullCity').point) |
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48 |
|
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49 |
# Setting the X and Y of the Point |
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50 |
nullcity.point.x = 23 |
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nullcity.point.y = 5 |
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52 |
# Checking assignments pre & post-save. |
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53 |
self.assertNotEqual(Point(23, 5), City.objects.get(name='NullCity').point) |
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54 |
nullcity.save() |
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55 |
self.assertEqual(Point(23, 5), City.objects.get(name='NullCity').point) |
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56 |
nullcity.delete() |
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57 |
|
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58 |
#### Testing on a Polygon |
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59 |
shell = LinearRing((0, 0), (0, 100), (100, 100), (100, 0), (0, 0)) |
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inner = LinearRing((40, 40), (40, 60), (60, 60), (60, 40), (40, 40)) |
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61 |
|
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62 |
# Creating a State object using a built Polygon |
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63 |
ply = Polygon(shell, inner) |
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64 |
nullstate = State(name='NullState', poly=ply) |
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self.assertEqual(4326, nullstate.poly.srid) # SRID auto-set from None |
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66 |
nullstate.save() |
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67 |
|
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68 |
ns = State.objects.get(name='NullState') |
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69 |
self.assertEqual(ply, ns.poly) |
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70 |
|
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71 |
# Testing the `ogr` and `srs` lazy-geometry properties. |
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72 |
if gdal.HAS_GDAL: |
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73 |
self.assertEqual(True, isinstance(ns.poly.ogr, gdal.OGRGeometry)) |
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74 |
self.assertEqual(ns.poly.wkb, ns.poly.ogr.wkb) |
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75 |
self.assertEqual(True, isinstance(ns.poly.srs, gdal.SpatialReference)) |
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76 |
self.assertEqual('WGS 84', ns.poly.srs.name) |
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77 |
|
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78 |
# Changing the interior ring on the poly attribute. |
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79 |
new_inner = LinearRing((30, 30), (30, 70), (70, 70), (70, 30), (30, 30)) |
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80 |
ns.poly[1] = new_inner |
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81 |
ply[1] = new_inner |
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82 |
self.assertEqual(4326, ns.poly.srid) |
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83 |
ns.save() |
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84 |
self.assertEqual(ply, State.objects.get(name='NullState').poly) |
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85 |
ns.delete() |
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86 |
|
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87 |
def test03_contains_contained(self): |
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88 |
"Testing the 'contained', 'contains', and 'bbcontains' lookup types." |
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89 |
# Getting Texas, yes we were a country -- once ;) |
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90 |
texas = Country.objects.get(name='Texas') |
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91 |
|
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92 |
# Seeing what cities are in Texas, should get Houston and Dallas, |
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parents:
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93 |
# and Oklahoma City because MySQL 'within' only checks on the |
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parents:
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|
94 |
# _bounding box_ of the Geometries. |
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95 |
qs = City.objects.filter(point__within=texas.mpoly) |
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parents:
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96 |
self.assertEqual(3, qs.count()) |
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97 |
cities = ['Houston', 'Dallas', 'Oklahoma City'] |
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98 |
for c in qs: self.assertEqual(True, c.name in cities) |
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parents:
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99 |
|
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parents:
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100 |
# Pulling out some cities. |
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parents:
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101 |
houston = City.objects.get(name='Houston') |
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102 |
wellington = City.objects.get(name='Wellington') |
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parents:
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103 |
pueblo = City.objects.get(name='Pueblo') |
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parents:
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104 |
okcity = City.objects.get(name='Oklahoma City') |
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parents:
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105 |
lawrence = City.objects.get(name='Lawrence') |
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parents:
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106 |
|
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107 |
# Now testing contains on the countries using the points for |
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108 |
# Houston and Wellington. |
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109 |
tx = Country.objects.get(mpoly__contains=houston.point) # Query w/GEOSGeometry |
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110 |
nz = Country.objects.get(mpoly__contains=wellington.point.hex) # Query w/EWKBHEX |
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111 |
ks = State.objects.get(poly__contains=lawrence.point) |
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112 |
self.assertEqual('Texas', tx.name) |
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113 |
self.assertEqual('New Zealand', nz.name) |
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114 |
self.assertEqual('Kansas', ks.name) |
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115 |
|
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116 |
# Pueblo is not contained in Texas or New Zealand. |
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117 |
self.assertEqual(0, len(Country.objects.filter(mpoly__contains=pueblo.point))) # Query w/GEOSGeometry object |
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118 |
|
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119 |
# OK City is contained w/in bounding box of Texas. |
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120 |
qs = Country.objects.filter(mpoly__bbcontains=okcity.point) |
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121 |
self.assertEqual(1, len(qs)) |
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122 |
self.assertEqual('Texas', qs[0].name) |
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123 |
|
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124 |
def test04_disjoint(self): |
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125 |
"Testing the `disjoint` lookup type." |
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126 |
ptown = City.objects.get(name='Pueblo') |
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127 |
qs1 = City.objects.filter(point__disjoint=ptown.point) |
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128 |
self.assertEqual(7, qs1.count()) |
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129 |
# TODO: This query should work in MySQL, but it appears the |
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130 |
# `MBRDisjoint` function doesn't work properly (I went down |
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131 |
# to the SQL level for debugging and still got bogus answers). |
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132 |
#qs2 = State.objects.filter(poly__disjoint=ptown.point) |
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133 |
#self.assertEqual(1, qs2.count()) |
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134 |
#self.assertEqual('Kansas', qs2[0].name) |
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135 |
|
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136 |
def test05_equals(self): |
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137 |
"Testing the 'same_as' and 'equals' lookup types." |
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138 |
pnt = fromstr('POINT (-95.363151 29.763374)', srid=4326) |
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139 |
c1 = City.objects.get(point=pnt) |
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140 |
c2 = City.objects.get(point__same_as=pnt) |
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141 |
c3 = City.objects.get(point__equals=pnt) |
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142 |
for c in [c1, c2, c3]: self.assertEqual('Houston', c.name) |
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143 |
|
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144 |
def test06_geometryfield(self): |
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145 |
"Testing GeometryField." |
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146 |
f1 = Feature(name='Point', geom=Point(1, 1)) |
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147 |
f2 = Feature(name='LineString', geom=LineString((0, 0), (1, 1), (5, 5))) |
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148 |
f3 = Feature(name='Polygon', geom=Polygon(LinearRing((0, 0), (0, 5), (5, 5), (5, 0), (0, 0)))) |
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149 |
f4 = Feature(name='GeometryCollection', |
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150 |
geom=GeometryCollection(Point(2, 2), LineString((0, 0), (2, 2)), |
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151 |
Polygon(LinearRing((0, 0), (0, 5), (5, 5), (5, 0), (0, 0))))) |
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152 |
f1.save() |
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153 |
f2.save() |
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154 |
f3.save() |
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155 |
f4.save() |
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156 |
|
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157 |
f_1 = Feature.objects.get(name='Point') |
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158 |
self.assertEqual(True, isinstance(f_1.geom, Point)) |
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159 |
self.assertEqual((1.0, 1.0), f_1.geom.tuple) |
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160 |
f_2 = Feature.objects.get(name='LineString') |
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161 |
self.assertEqual(True, isinstance(f_2.geom, LineString)) |
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162 |
self.assertEqual(((0.0, 0.0), (1.0, 1.0), (5.0, 5.0)), f_2.geom.tuple) |
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|
163 |
|
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164 |
f_3 = Feature.objects.get(name='Polygon') |
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165 |
self.assertEqual(True, isinstance(f_3.geom, Polygon)) |
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166 |
f_4 = Feature.objects.get(name='GeometryCollection') |
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167 |
self.assertEqual(True, isinstance(f_4.geom, GeometryCollection)) |
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168 |
self.assertEqual(f_3.geom, f_4.geom[2]) |
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|
169 |
|
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170 |
def test07_mysql_limitations(self): |
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171 |
"Testing that union(), kml(), gml() raise exceptions." |
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172 |
self.assertRaises(ImproperlyConfigured, City.objects.union, Point(5, 23), field_name='point') |
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173 |
self.assertRaises(ImproperlyConfigured, State.objects.all().kml, field_name='poly') |
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174 |
self.assertRaises(ImproperlyConfigured, Country.objects.all().gml, field_name='mpoly') |
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|
175 |
|
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|
176 |
from test_feeds import GeoFeedTest |
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177 |
from test_sitemaps import GeoSitemapTest |
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178 |
def suite(): |
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179 |
s = unittest.TestSuite() |
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180 |
s.addTest(unittest.makeSuite(GeoModelTest)) |
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181 |
s.addTest(unittest.makeSuite(GeoFeedTest)) |
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182 |
s.addTest(unittest.makeSuite(GeoSitemapTest)) |
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183 |
return s |