/*
 * 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.griffin.measure.configuration.dqdefinition.reader

import org.scalatest._
import scala.util.{Failure, Success}

import org.apache.griffin.measure.configuration.dqdefinition.DQConfig
import org.apache.griffin.measure.configuration.enums.DslType.GriffinDsl

class ParamFileReaderSpec extends FlatSpec with Matchers {

  "params " should "be parsed from a valid file" in {
    val reader: ParamReader =
      ParamFileReader(getClass.getResource("/_accuracy-batch-griffindsl.json").getFile)
    val params = reader.readConfig[DQConfig]
    params match {
      case Success(v) =>
        v.getEvaluateRule.getRules.head.getDslType should ===(GriffinDsl)
        v.getEvaluateRule.getRules.head.getOutDfName() should ===("accu")
      case Failure(_) =>
        fail("it should not happen")
    }

  }

  it should "fail for an invalid file" in {
    val reader: ParamReader = ParamFileReader(
      getClass.getResource("/invalidconfigs/missingrule_accuracy_batch_sparksql.json").getFile)
    val params = reader.readConfig[DQConfig]
    params match {
      case Success(_) =>
        fail("it is an invalid config file")
      case Failure(e) =>
        e.getMessage contains "evaluate.rule should not be null"
    }

  }

  it should "fail for an invalid completeness json file" in {
    val reader: ParamFileReader = ParamFileReader(
      getClass
        .getResource("/invalidconfigs/invalidtype_completeness_batch_griffindal.json")
        .getFile)
    val params = reader.readConfig[DQConfig]
    params match {
      case Success(_) =>
        fail("it is an invalid config file")
      case Failure(e) =>
        e.getMessage contains "error error.conf type"
    }
  }

  it should "be parsed from a valid errorconf completeness json file" in {
    val reader: ParamReader = ParamFileReader(
      getClass.getResource("/_completeness_errorconf-batch-griffindsl.json").getFile)
    val params = reader.readConfig[DQConfig]
    params match {
      case Success(v) =>
        v.getEvaluateRule.getRules.head.getErrorConfs.length should ===(2)
        v.getEvaluateRule.getRules.head.getErrorConfs.head.getColumnName.get should ===("user")
        v.getEvaluateRule.getRules.head.getErrorConfs(1).getColumnName.get should ===("name")
      case Failure(_) =>
        fail("it should not happen")
    }
  }
}