/**
* 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.hadoop.hive.ql.exec.vector;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* Test for StructColumnVector
*/
public class TestUnionColumnVector {
@Test
public void testFlatten() throws Exception {
LongColumnVector col1 = new LongColumnVector(10);
LongColumnVector col2 = new LongColumnVector(10);
UnionColumnVector vector = new UnionColumnVector(10, col1, col2);
vector.init();
col1.isRepeating = true;
for(int i=0; i < 10; ++i) {
vector.tags[i] = i % 2;
col1.vector[i] = i;
col2.vector[i] = 2 * i;
}
vector.flatten(false, null, 10);
assertFalse(col1.isRepeating);
for(int i=0; i < 10; ++i) {
assertEquals(i % 2, vector.tags[i]);
assertEquals("col1 at " + i, 0, col1.vector[i]);
assertEquals("col2 at " + i, 2 * i, col2.vector[i]);
}
vector.unFlatten();
assertTrue(col1.isRepeating);
for(int i=0; i < 10; ++i) {
StringBuilder buf = new StringBuilder();
vector.stringifyValue(buf, i);
assertEquals("{\"tag\": " + (i % 2) + ", \"value\": " +
(i % 2 == 0 ? 0 : 2 * i) + "}", buf.toString());
}
vector.reset();
assertFalse(col1.isRepeating);
}
@Test
public void testSet() throws Exception {
LongColumnVector input1 = new LongColumnVector(10);
LongColumnVector input2 = new LongColumnVector(10);
UnionColumnVector input = new UnionColumnVector(10, input1, input2);
input.init();
LongColumnVector output1 = new LongColumnVector(10);
LongColumnVector output2 = new LongColumnVector(10);
UnionColumnVector output = new UnionColumnVector(10, output1, output2);
output.init();
input1.isRepeating = true;
for(int i=0; i < 10; ++i) {
input.tags[i] = i % 2;
input1.vector[i] = i + 1;
input2.vector[i] = i + 2;
}
output.setElement(3, 4, input);
StringBuilder buf = new StringBuilder();
output.stringifyValue(buf, 3);
assertEquals("{\"tag\": 0, \"value\": 1}", buf.toString());
input.noNulls = false;
input.isNull[5] = true;
output.setElement(3, 5, input);
buf = new StringBuilder();
output.stringifyValue(buf, 3);
assertEquals("null", buf.toString());
input.reset();
assertEquals(false, input1.isRepeating);
assertEquals(true, input.noNulls);
}
}