forked from apache/dubbo
/
MergeableClusterInvokerTest.java
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/
MergeableClusterInvokerTest.java
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/*
* 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.cluster.support;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.rpc.AppResponse;
import org.apache.dubbo.rpc.AsyncRpcResult;
import org.apache.dubbo.rpc.Invocation;
import org.apache.dubbo.rpc.Invoker;
import org.apache.dubbo.rpc.Result;
import org.apache.dubbo.rpc.RpcInvocation;
import org.apache.dubbo.rpc.cluster.Directory;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.lang.reflect.Proxy;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static org.apache.dubbo.common.constants.CommonConstants.GROUP_KEY;
import static org.apache.dubbo.rpc.Constants.MERGER_KEY;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.mock;
public class MergeableClusterInvokerTest {
private Directory directory = mock(Directory.class);
private Invoker firstInvoker = mock(Invoker.class);
private Invoker secondInvoker = mock(Invoker.class);
private Invocation invocation = mock(Invocation.class);
private MergeableClusterInvoker<MenuService> mergeableClusterInvoker;
private String[] list1 = {"10", "11", "12"};
private String[] list2 = {"20", "21", "22"};
private String[] list3 = {"23", "24", "25"};
private String[] list4 = {"30", "31", "32"};
private Map<String, List<String>> firstMenuMap = new HashMap<String, List<String>>() {
{
put("1", Arrays.asList(list1));
put("2", Arrays.asList(list2));
}
};
private Map<String, List<String>> secondMenuMap = new HashMap<String, List<String>>() {
{
put("2", Arrays.asList(list3));
put("3", Arrays.asList(list4));
}
};
private Menu firstMenu = new Menu(firstMenuMap);
private Menu secondMenu = new Menu(secondMenuMap);
private URL url = URL.valueOf("test://test/" + MenuService.class.getName());
static void merge(Map<String, List<String>> first, Map<String, List<String>> second) {
for (Map.Entry<String, List<String>> entry : second.entrySet()) {
List<String> value = first.get(entry.getKey());
if (value != null) {
value.addAll(entry.getValue());
} else {
first.put(entry.getKey(), new ArrayList<String>(entry.getValue()));
}
}
}
@BeforeEach
public void setUp() throws Exception {
directory = mock(Directory.class);
firstInvoker = mock(Invoker.class);
secondInvoker = mock(Invoker.class);
invocation = mock(RpcInvocation.class);
}
@Test
public void testGetMenuSuccessfully() throws Exception {
// setup
url = url.addParameter(MERGER_KEY, ".merge");
given(invocation.getMethodName()).willReturn("getMenu");
given(invocation.getParameterTypes()).willReturn(new Class<?>[]{});
given(invocation.getArguments()).willReturn(new Object[]{});
given(invocation.getObjectAttachments()).willReturn(new HashMap<>())
;
given(invocation.getInvoker()).willReturn(firstInvoker);
firstInvoker = (Invoker) Proxy.newProxyInstance(getClass().getClassLoader(), new Class<?>[]{Invoker.class}, (proxy, method, args) -> {
if ("getUrl".equals(method.getName())) {
return url.addParameter(GROUP_KEY, "first");
}
if ("getInterface".equals(method.getName())) {
return MenuService.class;
}
if ("invoke".equals(method.getName())) {
return AsyncRpcResult.newDefaultAsyncResult(firstMenu, invocation);
}
return null;
});
secondInvoker = (Invoker) Proxy.newProxyInstance(getClass().getClassLoader(), new Class<?>[]{Invoker.class}, (proxy, method, args) -> {
if ("getUrl".equals(method.getName())) {
return url.addParameter(GROUP_KEY, "second");
}
if ("getInterface".equals(method.getName())) {
return MenuService.class;
}
if ("invoke".equals(method.getName())) {
return AsyncRpcResult.newDefaultAsyncResult(secondMenu, invocation);
}
return null;
});
given(directory.list(invocation)).willReturn(new ArrayList() {
{
add(firstInvoker);
add(secondInvoker);
}
});
given(directory.getUrl()).willReturn(url);
given(directory.getConsumerUrl()).willReturn(url);
given(directory.getConsumerUrl()).willReturn(url);
given(directory.getInterface()).willReturn(MenuService.class);
mergeableClusterInvoker = new MergeableClusterInvoker<MenuService>(directory);
// invoke
Result result = mergeableClusterInvoker.invoke(invocation);
Assertions.assertTrue(result.getValue() instanceof Menu);
Menu menu = (Menu) result.getValue();
Map<String, List<String>> expected = new HashMap<String, List<String>>();
merge(expected, firstMenuMap);
merge(expected, secondMenuMap);
assertEquals(expected.keySet(), menu.getMenus().keySet());
for (Map.Entry<String, List<String>> entry : expected.entrySet()) {
// FIXME: cannot guarantee the sequence of the merge result, check implementation in
// MergeableClusterInvoker#invoke
List<String> values1 = new ArrayList<String>(entry.getValue());
List<String> values2 = new ArrayList<String>(menu.getMenus().get(entry.getKey()));
Collections.sort(values1);
Collections.sort(values2);
assertEquals(values1, values2);
}
}
@Test
public void testAddMenu() throws Exception {
String menu = "first";
List<String> menuItems = new ArrayList<String>() {
{
add("1");
add("2");
}
};
given(invocation.getMethodName()).willReturn("addMenu");
given(invocation.getParameterTypes()).willReturn(
new Class<?>[]{String.class, List.class});
given(invocation.getArguments()).willReturn(new Object[]{menu, menuItems})
;
given(invocation.getObjectAttachments()).willReturn(new HashMap<>())
;
given(invocation.getInvoker()).willReturn(firstInvoker);
given(firstInvoker.getUrl()).willReturn(
url.addParameter(GROUP_KEY, "first"));
given(firstInvoker.getInterface()).willReturn(MenuService.class);
given(firstInvoker.invoke(invocation)).willReturn(new AppResponse())
;
given(firstInvoker.isAvailable()).willReturn(true);
given(secondInvoker.getUrl()).willReturn(
url.addParameter(GROUP_KEY, "second"));
given(secondInvoker.getInterface()).willReturn(MenuService.class);
given(secondInvoker.invoke(invocation)).willReturn(new AppResponse())
;
given(secondInvoker.isAvailable()).willReturn(true);
given(directory.list(invocation)).willReturn(new ArrayList() {
{
add(firstInvoker);
add(secondInvoker);
}
});
given(directory.getUrl()).willReturn(url);
given(directory.getConsumerUrl()).willReturn(url);
given(directory.getConsumerUrl()).willReturn(url);
given(directory.getInterface()).willReturn(MenuService.class);
mergeableClusterInvoker = new MergeableClusterInvoker<MenuService>(directory);
Result result = mergeableClusterInvoker.invoke(invocation);
Assertions.assertNull(result.getValue());
}
}