/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.spark.sql.catalyst.trees

import org.apache.spark.SparkFunSuite
import org.apache.spark.sql.catalyst.plans.SQLHelper

class SQLQueryContextSuite extends SparkFunSuite with SQLHelper {

  test("SPARK-40136: the length of the fragment in query context") {
    def getFragment(sqlText: String, start: Int, stop: Int): String = {
      val context = SQLQueryContext(
        line = None,
        startPosition = None,
        originStartIndex = Some(start),
        originStopIndex = Some(stop),
        sqlText = Some(sqlText),
        originObjectType = None,
        originObjectName = None)
      context.fragment
    }
    Seq(
      ("select 1 / 0", 7, 11) -> "1 / 0",
      ("select 1 / 0", 7, 7) -> "1",
      ("", 7, 7) -> "",
      // Empty fragment for invalid indexes
      ("select 1 / 0", -1, 11) -> "",
      ("select 1 / 0", 7, 12) -> "",
      ("select 1 / 0", 11, 7) -> ""
    ).foreach { case ((sqlText, start, stop), expectedFragment) =>
      assert(getFragment(sqlText, start, stop) === expectedFragment)
    }
  }
}
