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import unittest
from django.core.exceptions import ImproperlyConfigured
from django.db import ProgrammingError
try:
from django.contrib.gis.db.backends.postgis.operations import (
PostGISOperations,
)
HAS_POSTGRES = True
except ImportError:
HAS_POSTGRES = False
if HAS_POSTGRES:
class FakeConnection:
def __init__(self):
self.settings_dict = {
'NAME': 'test',
}
class FakePostGISOperations(PostGISOperations):
def __init__(self, version=None):
self.version = version
self.connection = FakeConnection()
def _get_postgis_func(self, func):
if func == 'postgis_lib_version':
if self.version is None:
raise ProgrammingError
else:
return self.version
elif func == 'version':
pass
else:
raise NotImplementedError('This function was not expected to be called')
@unittest.skipUnless(HAS_POSTGRES, "The psycopg2 driver is needed for these tests")
class TestPostGISVersionCheck(unittest.TestCase):
"""
The PostGIS version check parses correctly the version numbers
"""
def test_get_version(self):
expect = '1.0.0'
ops = FakePostGISOperations(expect)
actual = ops.postgis_lib_version()
self.assertEqual(expect, actual)
def test_version_classic_tuple(self):
expect = ('1.2.3', 1, 2, 3)
ops = FakePostGISOperations(expect[0])
actual = ops.postgis_version_tuple()
self.assertEqual(expect, actual)
def test_version_dev_tuple(self):
expect = ('1.2.3dev', 1, 2, 3)
ops = FakePostGISOperations(expect[0])
actual = ops.postgis_version_tuple()
self.assertEqual(expect, actual)
def test_version_loose_tuple(self):
expect = ('1.2.3b1.dev0', 1, 2, 3)
ops = FakePostGISOperations(expect[0])
actual = ops.postgis_version_tuple()
self.assertEqual(expect, actual)
def test_valid_version_numbers(self):
versions = [
('1.3.0', 1, 3, 0),
('2.1.1', 2, 1, 1),
('2.2.0dev', 2, 2, 0),
]
for version in versions:
with self.subTest(version=version):
ops = FakePostGISOperations(version[0])
actual = ops.spatial_version
self.assertEqual(version[1:], actual)
def test_no_version_number(self):
ops = FakePostGISOperations()
with self.assertRaises(ImproperlyConfigured):
ops.spatial_version
|
