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import unittest
from unittest import mock
from django.contrib.gis.gdal import GDAL_VERSION, Driver, GDALException
valid_drivers = (
# vector
"ESRI Shapefile",
"MapInfo File",
"S57",
"DGN",
"Memory" if GDAL_VERSION[:2] <= (3, 10) else "MEM",
"CSV",
"GML",
"KML",
# raster
"GTiff",
"JPEG",
"MEM",
"PNG",
)
invalid_drivers = ("Foo baz", "clucka", "ESRI Shp", "ESRI rast")
aliases = {
"eSrI": "ESRI Shapefile",
"SHAPE": "ESRI Shapefile",
"sHp": "ESRI Shapefile",
"tiFf": "GTiff",
"tIf": "GTiff",
"jPEg": "JPEG",
"jpG": "JPEG",
}
if GDAL_VERSION[:2] <= (3, 10):
aliases.update(
{
"tiger": "TIGER",
"tiger/line": "TIGER",
}
)
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.capi.get_driver_count")
@mock.patch("django.contrib.gis.gdal.driver.capi.register_all")
def test_registered(self, reg, count):
"""
Prototypes are registered only if the driver count is zero.
"""
def check(count_val):
reg.reset_mock()
count.return_value = count_val
Driver.ensure_registered()
if count_val:
self.assertFalse(reg.called)
else:
reg.assert_called_once_with()
check(0)
check(120)
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