/*
 * 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.dubbo.rpc.support;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

class ProtocolUtilsTest {

    @Test
    void testGetServiceKey() {
        final String serviceName = "com.abc.demoService";
        final int port = 1001;

        assertServiceKey(port, serviceName, "1.0.0", "group");
        assertServiceKey(port, serviceName, "1.0.0", "");
        assertServiceKey(port, serviceName, "1.0.0", null);

        assertServiceKey(port, serviceName, "0.0", "group");
        assertServiceKey(port, serviceName, "0_0_0", "group");
        assertServiceKey(port, serviceName, "0.0.0", "group");
        assertServiceKey(port, serviceName, "", "group");
        assertServiceKey(port, serviceName, null, "group");

        assertServiceKey(port, serviceName, "", "");
        assertServiceKey(port, serviceName, "", null);
        assertServiceKey(port, serviceName, null, "");
        assertServiceKey(port, serviceName, null, null);

        assertServiceKey(port, serviceName, "", " ");
        assertServiceKey(port, serviceName, " ", "");
        assertServiceKey(port, serviceName, " ", " ");
    }

    private void assertServiceKey(int port, String serviceName, String serviceVersion, String serviceGroup) {
        Assertions.assertEquals(
                serviceKeyOldImpl(port, serviceName, serviceVersion, serviceGroup),
                ProtocolUtils.serviceKey(port, serviceName, serviceVersion, serviceGroup));
    }

    /**
     * 来自 ProtocolUtils.serviceKey(int, String, String, String) 老版本的实现，用于对比测试！
     */
    private static String serviceKeyOldImpl(int port, String serviceName, String serviceVersion, String serviceGroup) {
        StringBuilder buf = new StringBuilder();
        if (serviceGroup != null && serviceGroup.length() > 0) {
            buf.append(serviceGroup);
            buf.append('/');
        }
        buf.append(serviceName);
        if (serviceVersion != null && serviceVersion.length() > 0 && !"0.0.0".equals(serviceVersion)) {
            buf.append(':');
            buf.append(serviceVersion);
        }
        buf.append(':');
        buf.append(port);
        return buf.toString();
    }
}
