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102 lines
3.4 KiB
Python
102 lines
3.4 KiB
Python
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.db.backends.base.base import NO_DB_ALIAS
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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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if HAS_POSTGRES:
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class FakeConnection:
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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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elif func == "version":
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pass
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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 psycopg driver is needed for these tests")
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class TestPostGISVersionCheck(unittest.TestCase):
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"""
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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_version_loose_tuple(self):
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expect = ("1.2.3b1.dev0", 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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with self.subTest(version=version):
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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_no_version_number(self):
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ops = FakePostGISOperations()
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with self.assertRaises(ImproperlyConfigured):
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ops.spatial_version
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@unittest.skipUnless(HAS_POSTGRES, "PostGIS-specific tests.")
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class TestPostGISBackend(unittest.TestCase):
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def test_non_db_connection_classes(self):
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from django.contrib.gis.db.backends.postgis.base import DatabaseWrapper
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from django.db.backends.postgresql.features import DatabaseFeatures
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from django.db.backends.postgresql.introspection import DatabaseIntrospection
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from django.db.backends.postgresql.operations import DatabaseOperations
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wrapper = DatabaseWrapper(settings_dict={}, alias=NO_DB_ALIAS)
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# PostGIS-specific stuff is not initialized for non-db connections.
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self.assertIs(wrapper.features_class, DatabaseFeatures)
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self.assertIs(wrapper.ops_class, DatabaseOperations)
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self.assertIs(wrapper.introspection_class, DatabaseIntrospection)
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