Fixed #27078 -- Simplified "if" logic in SQLite's _get_test_db_name().

1 files changed, 11 insertions, 10 deletions

diff --git a/django/db/backends/sqlite3/creation.py b/django/db/backends/sqlite3/creation.py
index 9f1598e3ee..26ad0d4f95 100644
--- a/django/db/backends/sqlite3/creation.py
+++ b/django/db/backends/sqlite3/creation.py
@@ -12,17 +12,18 @@ class DatabaseCreation(BaseDatabaseCreation):
     def _get_test_db_name(self):
         test_database_name = self.connection.settings_dict['TEST']['NAME']
         can_share_in_memory_db = self.connection.features.can_share_in_memory_db
-        if test_database_name and test_database_name != ':memory:':
-            if 'mode=memory' in test_database_name and not can_share_in_memory_db:
-                raise ImproperlyConfigured(
-                    "Using a shared memory database with `mode=memory` in the "
-                    "database name is not supported in your environment, "
-                    "use `:memory:` instead."
-                )
-            return test_database_name
+        if not test_database_name:
+            test_database_name = ':memory:'
         if can_share_in_memory_db:
-            return 'file:memorydb_%s?mode=memory&cache=shared' % self.connection.alias
-        return ':memory:'
+            if test_database_name == ':memory:':
+                return 'file:memorydb_%s?mode=memory&cache=shared' % self.connection.alias
+        elif 'mode=memory' in test_database_name:
+            raise ImproperlyConfigured(
+                "Using a shared memory database with `mode=memory` in the "
+                "database name is not supported in your environment, "
+                "use `:memory:` instead."
+            )
+        return test_database_name
 
     def _create_test_db(self, verbosity, autoclobber, keepdb=False):
         test_database_name = self._get_test_db_name()