MODULE test_exec ;

(*
   m2SQLITE smoke test: one-step exec interface (CREATE/INSERT),
   error capture via ExecWithErr, and change counters.
*)

FROM SQLite IMPORT DbHandle, SQLiteOk, SQLiteDone, SQLiteRow,
   sqlite3_open, sqlite3_close,
   sqlite3_changes, sqlite3_total_changes, sqlite3_last_insert_rowid;
FROM SQLiteUtils IMPORT ExecSimple, ExecWithErr;
FROM libc IMPORT printf;

VAR db: DbHandle; rc: INTEGER; buf: ARRAY [0..255] OF CHAR;
    rowid: LONGINT;

BEGIN
   IF sqlite3_open(":memory:", db) # SQLiteOk THEN
      printf("FAIL test_exec: open\n");
      HALT(1)
   END;

   rc := ExecSimple(db, "CREATE TABLE t(id INTEGER PRIMARY KEY, name TEXT);");
   IF rc # SQLiteOk THEN
      printf("FAIL test_exec: create rc=%d\n", rc);
      HALT(1)
   END;

   rc := ExecSimple(db, "INSERT INTO t(name) VALUES('alice');");
   IF rc # SQLiteOk THEN
      printf("FAIL test_exec: insert rc=%d\n", rc);
      HALT(1)
   END;
   IF sqlite3_changes(db) # 1 THEN
      printf("FAIL test_exec: changes=%d want 1\n", sqlite3_changes(db));
      HALT(1)
   END;
   rowid := sqlite3_last_insert_rowid(db);
   printf("last_rowid=%ld\n", rowid);
   IF rowid # 1 THEN
      printf("FAIL test_exec: rowid=%ld want 1\n", rowid);
      HALT(1)
   END;

   (* failing statement must report its message *)
   rc := ExecWithErr(db, "INSERT INTO bogus(x) VALUES(1);", buf);
   printf("bad exec rc=%d err=%s\n", rc, buf);
   IF rc = SQLiteOk THEN
      printf("FAIL test_exec: bad SQL succeeded\n");
      HALT(1)
   END;
   IF buf[0] = 0C THEN
      printf("FAIL test_exec: empty error message\n");
      HALT(1)
   END;

   printf("total_changes=%d\n", sqlite3_total_changes(db));
   rc := sqlite3_close(db);
   IF rc # SQLiteOk THEN
      printf("FAIL test_exec: close rc=%d\n", rc);
      HALT(1)
   END;
   printf("PASS test_exec\n")
END test_exec.