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import unittest
from unittest import mock
from django.contrib.gis.gdal import Driver, GDALException
valid_drivers = (
# vector
'ESRI Shapefile', 'MapInfo File', 'TIGER', 'S57', 'DGN', 'Memory', 'CSV',
'GML', 'KML',
# raster
'GTiff', 'JPEG', 'MEM', 'PNG',
)
invalid_drivers = ('Foo baz', 'clucka', 'ESRI Shp', 'ESRI rast')
aliases = {
'eSrI': 'ESRI Shapefile',
'TigER/linE': 'TIGER',
'SHAPE': 'ESRI Shapefile',
'sHp': 'ESRI Shapefile',
'tiFf': 'GTiff',
'tIf': 'GTiff',
'jPEg': 'JPEG',
'jpG': 'JPEG',
}
class DriverTest(unittest.TestCase):
def test01_valid_driver(self):
"Testing valid GDAL/OGR Data Source Drivers."
for d in valid_drivers:
dr = Driver(d)
self.assertEqual(d, str(dr))
def test02_invalid_driver(self):
"Testing invalid GDAL/OGR Data Source Drivers."
for i in invalid_drivers:
with self.assertRaises(GDALException):
Driver(i)
def test03_aliases(self):
"Testing driver aliases."
for alias, full_name in aliases.items():
dr = Driver(alias)
self.assertEqual(full_name, str(dr))
@mock.patch('django.contrib.gis.gdal.driver.vcapi.get_driver_count')
@mock.patch('django.contrib.gis.gdal.driver.rcapi.get_driver_count')
@mock.patch('django.contrib.gis.gdal.driver.vcapi.register_all')
@mock.patch('django.contrib.gis.gdal.driver.rcapi.register_all')
def test_registered(self, rreg, vreg, rcount, vcount):
"""
Prototypes are registered only if their respective driver counts are
zero.
"""
def check(rcount_val, vcount_val):
vreg.reset_mock()
rreg.reset_mock()
rcount.return_value = rcount_val
vcount.return_value = vcount_val
Driver.ensure_registered()
if rcount_val:
self.assertFalse(rreg.called)
else:
rreg.assert_called_once_with()
if vcount_val:
self.assertFalse(vreg.called)
else:
vreg.assert_called_once_with()
check(0, 0)
check(120, 0)
check(0, 120)
check(120, 120)
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