StringUtilsTest.java

/*
 * Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
 * license agreements.  See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.  Crate 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.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial agreement.
 */

package io.crate.core;

import com.google.common.collect.ImmutableSet;
import io.crate.test.integration.CrateUnitTest;
import org.junit.Test;

import java.util.Arrays;

public class StringUtilsTest extends CrateUnitTest {

    @Test
    public void testCommonAncestors() throws Exception {
        assertEquals(ImmutableSet.of("a"), StringUtils.commonAncestors(Arrays.asList("a", "a.b")));

        assertEquals(ImmutableSet.of("d", "a", "b"),
            StringUtils.commonAncestors(Arrays.asList("a.c", "b", "b.c.d", "a", "a.b", "d")));

        assertEquals(ImmutableSet.of("d", "a", "b.c"),
            StringUtils.commonAncestors(Arrays.asList("a.c", "b.c", "b.c.d", "a", "a.b", "d")));
    }
}