/*
 * 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.protocol.dubbo.telnet;

import org.apache.dubbo.remoting.Channel;
import org.apache.dubbo.remoting.RemotingException;
import org.apache.dubbo.remoting.telnet.TelnetHandler;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.mock;

/**
 * CountTelnetHandlerTest.java
 */
public class CurrentTelnetHandlerTest {

    private static TelnetHandler count = new CurrentTelnetHandler();
    private Channel mockChannel;

    @Test
    public void testService() throws RemotingException {
        mockChannel = mock(Channel.class);
        given(mockChannel.getAttribute("telnet.service")).willReturn("org.apache.dubbo.rpc.protocol.dubbo.support.DemoService");

        String result = count.telnet(mockChannel, "");
        assertEquals("org.apache.dubbo.rpc.protocol.dubbo.support.DemoService", result);
    }

    @Test
    public void testSlash() throws RemotingException {
        mockChannel = mock(Channel.class);
        given(mockChannel.getAttribute("telnet.service")).willReturn(null);

        String result = count.telnet(mockChannel, "");
        assertEquals("/", result);
    }

    @Test
    public void testMessageError() throws RemotingException {
        mockChannel = mock(Channel.class);
        given(mockChannel.getAttribute("telnet.service")).willReturn(null);

        String result = count.telnet(mockChannel, "test");
        assertEquals("Unsupported parameter test for pwd.", result);
    }
}