Fixed #27061 -- Added a TEST['TEMPLATE'] setting for PostgreSQL.

tests/backends/test_creation.py

@@ -1,9 +1,12 @@
 import copy
+import unittest
+from contextlib import contextmanager
 
-from django.db import DEFAULT_DB_ALIAS, connections
+from django.db import DEFAULT_DB_ALIAS, connection, connections
 from django.db.backends.base.creation import (
     TEST_DATABASE_PREFIX, BaseDatabaseCreation,
 )
+from django.db.backends.postgresql.creation import DatabaseCreation
 from django.test import SimpleTestCase
 
 
@@ -40,3 +43,48 @@ class TestDbSignatureTests(SimpleTestCase):
         test_connection.settings_dict['TEST'] = {'NAME': test_name}
         signature = BaseDatabaseCreation(test_connection).test_db_signature()
         self.assertEqual(signature[3], test_name)
+
+
+@unittest.skipUnless(connection.vendor == 'postgresql', "PostgreSQL-specific tests")
+class PostgreSQLDatabaseCreationTests(SimpleTestCase):
+
+    @contextmanager
+    def changed_test_settings(self, **kwargs):
+        settings = connection.settings_dict['TEST']
+        saved_values = {}
+        for name in kwargs:
+            if name in settings:
+                saved_values[name] = settings[name]
+
+        for name, value in kwargs.items():
+            settings[name] = value
+        try:
+            yield
+        finally:
+            for name, value in kwargs.items():
+                if name in saved_values:
+                    settings[name] = saved_values[name]
+                else:
+                    del settings[name]
+
+    def check_sql_table_creation_suffix(self, settings, expected):
+        with self.changed_test_settings(**settings):
+            creation = DatabaseCreation(connection)
+            suffix = creation.sql_table_creation_suffix()
+            self.assertEqual(suffix, expected)
+
+    def test_sql_table_creation_suffix_with_none_settings(self):
+        settings = dict(CHARSET=None, TEMPLATE=None)
+        self.check_sql_table_creation_suffix(settings, "")
+
+    def test_sql_table_creation_suffix_with_encoding(self):
+        settings = dict(CHARSET='UTF8')
+        self.check_sql_table_creation_suffix(settings, "WITH ENCODING 'UTF8'")
+
+    def test_sql_table_creation_suffix_with_template(self):
+        settings = dict(TEMPLATE='template0')
+        self.check_sql_table_creation_suffix(settings, 'WITH TEMPLATE "template0"')
+
+    def test_sql_table_creation_suffix_with_encoding_and_template(self):
+        settings = dict(CHARSET='UTF8', TEMPLATE='template0')
+        self.check_sql_table_creation_suffix(settings, '''WITH ENCODING 'UTF8' TEMPLATE "template0"''')