1 files changed, 30 insertions, 0 deletions
diff --git a/test/fkey6.test b/test/fkey6.test
index 72de926b5..7cdc8ab0a 100644
--- a/test/fkey6.test
+++ b/test/fkey6.test
@@ -267,5 +267,35 @@ do_execsql_test 5.1 {
   COMMIT;
 }
 
+#-------------------------------------------------------------------------
+#
+reset_db
+
+do_execsql_test 6.1 {
+  PRAGMA writable_schema = 1;
+  INSERT INTO sqlite_schema 
+    VALUES('table', 't1', 't1', 2, 'CREATE TABLE t1(x INTEGER PRIMARY KEY)');
+}
+db close
+sqlite3 db test.db
+do_execsql_test 6.1 {
+  PRAGMA foreign_keys = 1;
+  PRAGMA writable_schema = 1;
+}
+do_execsql_test 6.2 {
+  CREATE TABLE t2(
+      y INTEGER PRIMARY KEY,
+      z INTEGER REFERENCES t1(x) DEFERRABLE INITIALLY DEFERRED
+  );
+}
+do_execsql_test 6.3 {
+  BEGIN;
+    INSERT INTO t2 VALUES(1,0),(2,1);
+    CREATE VIRTUAL TABLE t3 USING fts5(a, b, content='', tokendata=1);
+    INSERT INTO t3 VALUES(3,3);
+    PRAGMA defer_foreign_keys=ON;
+    DELETE FROM t2;
+  COMMIT;
+}
 
 finish_test