/*
 * 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.filter.tps;

import org.apache.dubbo.common.URL;
import org.apache.dubbo.rpc.Invocation;
import org.apache.dubbo.rpc.Invoker;
import org.apache.dubbo.rpc.Result;
import org.apache.dubbo.rpc.RpcException;
import org.apache.dubbo.rpc.filter.TpsLimitFilter;
import org.apache.dubbo.rpc.support.MockInvocation;
import org.apache.dubbo.rpc.support.MyInvoker;

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

import static org.apache.dubbo.common.constants.CommonConstants.INTERFACE_KEY;
import static org.apache.dubbo.rpc.Constants.TPS_LIMIT_RATE_KEY;
import static org.junit.jupiter.api.Assertions.assertTrue;

class TpsLimitFilterTest {

    private TpsLimitFilter filter = new TpsLimitFilter();

    @Test
    void testWithoutCount() throws Exception {
        URL url = URL.valueOf("test://test");
        url = url.addParameter(INTERFACE_KEY, "org.apache.dubbo.rpc.file.TpsService");
        url = url.addParameter(TPS_LIMIT_RATE_KEY, 5);
        Invoker<TpsLimitFilterTest> invoker = new MyInvoker<TpsLimitFilterTest>(url);
        Invocation invocation = new MockInvocation();
        filter.invoke(invoker, invocation);
    }

    @Test
    void testFail() throws Exception {
        Assertions.assertThrows(RpcException.class, () -> {
            URL url = URL.valueOf("test://test");
            url = url.addParameter(INTERFACE_KEY, "org.apache.dubbo.rpc.file.TpsService");
            url = url.addParameter(TPS_LIMIT_RATE_KEY, 5);
            Invoker<TpsLimitFilterTest> invoker = new MyInvoker<TpsLimitFilterTest>(url);
            Invocation invocation = new MockInvocation();
            for (int i = 0; i < 10; i++) {
                Result re = filter.invoke(invoker, invocation);
                if (i >= 5) {
                    assertTrue(re.hasException());
                    throw re.getException();
                }
            }
        });
    }
}
