dubbo-common/src/test/java/com/alibaba/dubbo/common/utils/StringUtilsTest.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 com.alibaba.dubbo.common.utils;

import junit.framework.TestCase;
import org.junit.Test;

import java.util.ArrayList;
import java.util.List;

public class StringUtilsTest extends TestCase {
    public void testJoin() throws Exception {
        String[] s = {"1", "2", "3"};
        assertEquals(StringUtils.join(s), "123");
        assertEquals(StringUtils.join(s, ','), "1,2,3");
    }

    public void testSplit() throws Exception {
        String s = "d,1,2,4";
        assertEquals(StringUtils.split(s, ',').length, 4);
    }

    public void testTranslat() throws Exception {
        String s = "16314";
        assertEquals(StringUtils.translat(s, "123456", "abcdef"), "afcad");
        assertEquals(StringUtils.translat(s, "123456", "abcd"), "acad");
    }

    public void testJoin_Colletion_String() throws Exception {
        List<String> list = new ArrayList<String>();
        assertEquals("", StringUtils.join(list, ","));

        list.add("v1");
        assertEquals("v1", StringUtils.join(list, "-"));

        list.add("v2");
        list.add("v3");
        String out = StringUtils.join(list, ":");
        assertEquals("v1:v2:v3", out);
    }

    @Test
    public void testCamelToSplitName() throws Exception {
        assertEquals("ab-cd-ef", StringUtils.camelToSplitName("abCdEf", "-"));
        assertEquals("ab-cd-ef", StringUtils.camelToSplitName("AbCdEf", "-"));
        assertEquals("ab-cd-ef", StringUtils.camelToSplitName("ab-cd-ef", "-"));
        assertEquals("abcdef", StringUtils.camelToSplitName("abcdef", "-"));
    }
}