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93 lines
3.0 KiB
Python
93 lines
3.0 KiB
Python
import sys
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import unittest
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from django.core.exceptions import ImproperlyConfigured
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from django.db import ProgrammingError
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from django.utils import six
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try:
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from django.contrib.gis.db.backends.postgis.operations import PostGISOperations
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HAS_POSTGRES = True
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except ImportError:
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HAS_POSTGRES = False
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except ImproperlyConfigured as e:
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# If psycopg is installed but not geos, the import path hits
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# django.contrib.gis.geometry.backend which will "helpfully" convert
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# an ImportError into an ImproperlyConfigured.
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# Here, we make sure we're only catching this specific case and not another
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# ImproperlyConfigured one.
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if e.args and e.args[0].startswith('Could not import user-defined GEOMETRY_BACKEND'):
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HAS_POSTGRES = False
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else:
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six.reraise(*sys.exc_info())
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if HAS_POSTGRES:
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class FakeConnection(object):
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def __init__(self):
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self.settings_dict = {
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'NAME': 'test',
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}
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class FakePostGISOperations(PostGISOperations):
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def __init__(self, version=None):
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self.version = version
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self.connection = FakeConnection()
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def _get_postgis_func(self, func):
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if func == 'postgis_lib_version':
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if self.version is None:
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raise ProgrammingError
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else:
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return self.version
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else:
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raise NotImplementedError('This function was not expected to be called')
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@unittest.skipUnless(HAS_POSTGRES, "The psycopg2 driver is needed for these tests")
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class TestPostgisVersionCheck(unittest.TestCase):
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"""
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Tests that the postgis version check parses correctly the version numbers
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"""
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def test_get_version(self):
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expect = '1.0.0'
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ops = FakePostGISOperations(expect)
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actual = ops.postgis_lib_version()
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self.assertEqual(expect, actual)
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def test_version_classic_tuple(self):
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expect = ('1.2.3', 1, 2, 3)
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ops = FakePostGISOperations(expect[0])
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actual = ops.postgis_version_tuple()
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self.assertEqual(expect, actual)
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def test_version_dev_tuple(self):
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expect = ('1.2.3dev', 1, 2, 3)
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ops = FakePostGISOperations(expect[0])
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actual = ops.postgis_version_tuple()
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self.assertEqual(expect, actual)
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def test_valid_version_numbers(self):
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versions = [
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('1.3.0', 1, 3, 0),
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('2.1.1', 2, 1, 1),
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('2.2.0dev', 2, 2, 0),
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]
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for version in versions:
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ops = FakePostGISOperations(version[0])
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actual = ops.spatial_version
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self.assertEqual(version[1:], actual)
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def test_invalid_version_numbers(self):
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versions = ['nope', '123']
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for version in versions:
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ops = FakePostGISOperations(version)
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self.assertRaises(Exception, lambda: ops.spatial_version)
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def test_no_version_number(self):
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ops = FakePostGISOperations()
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self.assertRaises(ImproperlyConfigured, lambda: ops.spatial_version)
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