exec/java-exec/src/test/java/org/apache/drill/exec/expr/TestLogicalExprSerDe.java

/*
 * 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.drill.exec.expr;

import org.apache.drill.test.BaseTestQuery;
import org.apache.drill.categories.UnlikelyTest;
import org.apache.drill.exec.ExecConstants;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;

/**
 * Test LogicalExpressions are serialized and deserialized properly when query is planned into multiple fragments.
 */
@Category(UnlikelyTest.class)
public class TestLogicalExprSerDe extends BaseTestQuery {

  @BeforeClass
  public static void setSliceCount() throws Exception {
    // Set the slice count to low, so that query is divided into multiple fragments with exchanges.
    test("ALTER SESSION SET `planner.slice_target`=1;");
  }

  @Test // DRILL-2606
  public void castToBit() throws Exception {
    testBuilder()
        .sqlQuery("SELECT CAST(CAST('true' as VARCHAR(20)) AS BOOLEAN) c1 FROM cp.`region.json` ORDER BY `region_id` LIMIT 1")
        .unOrdered()
        .baselineColumns("c1")
        .baselineValues(true)
        .go();
  }

  // TODO: Need to add better coverage for ExprParser

  @AfterClass
  public static void resetSliceCount() throws Exception {
    // Set the slice count to low, so that query is divided into multiple fragments with exchanges.
    test(String.format("ALTER SESSION SET `planner.slice_target`=%d;", ExecConstants.SLICE_TARGET_DEFAULT));
  }
}