tajo-plan/src/test/java/org/apache/tajo/plan/TestExprAnnotator.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.tajo.plan;

import org.apache.tajo.catalog.CatalogUtil;
import org.junit.Test;

import static org.apache.tajo.common.TajoDataTypes.Type;
import static org.junit.Assert.assertEquals;

public class TestExprAnnotator {
  @Test
  public void testGetWidestType() throws Exception {
    assertEquals(Type.INT1,
        CatalogUtil.getWidestType(CatalogUtil.newSimpleDataType(Type.INT1)).getType());
    assertEquals(Type.INT2,
        CatalogUtil.getWidestType(CatalogUtil.newSimpleDataTypeArray(Type.INT1, Type.INT2)).getType());
    assertEquals(Type.INT4,
        CatalogUtil.getWidestType(CatalogUtil.newSimpleDataTypeArray(Type.INT1, Type.INT2, Type.INT4)).getType());
    assertEquals(Type.INT8,
        CatalogUtil.getWidestType(CatalogUtil.newSimpleDataTypeArray(Type.INT1, Type.INT2, Type.INT4,
            Type.INT8)).getType());
    assertEquals(Type.FLOAT4,
        CatalogUtil.getWidestType(CatalogUtil.newSimpleDataTypeArray(Type.FLOAT4, Type.INT2, Type.INT4,
            Type.INT8)).getType());
    assertEquals(Type.FLOAT8,
        CatalogUtil.getWidestType(CatalogUtil.newSimpleDataTypeArray(Type.FLOAT4, Type.FLOAT8, Type.INT4,
            Type.INT8)).getType());
  }
}