/**
* 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.common.expression;
import static org.junit.Assert.assertEquals;
import org.apache.drill.test.DrillTest;
import org.junit.Test;
public class PathSegmentTests extends DrillTest {
protected PathSegment makeArraySegment(final int len, final PathSegment tail) {
PathSegment node = tail;
for (int i = 0; i < len; i++) {
node = new PathSegment.ArraySegment(node);
}
return node;
}
@Test
public void testIfMultiLevelCloneWorks() {
final int levels = 10;
final PathSegment segment = new PathSegment.NameSegment("test", makeArraySegment(levels, null));
final PathSegment clone = segment.clone();
assertEquals("result of clone & original segments must be identical", segment, clone);
final PathSegment tail = new PathSegment.NameSegment("tail");
final PathSegment newSegment = new PathSegment.NameSegment("test", makeArraySegment(levels, tail));
final PathSegment newClone = segment.cloneWithNewChild(tail);
assertEquals("result of cloneWithChild & original segment must be identical", newSegment, newClone);
}
}