content: package com.alibaba.csp.sentinel.adapter.dubbo;
  
  import com.alibaba.csp.sentinel.BaseTest;
  import com.alibaba.csp.sentinel.Entry;
  import com.alibaba.csp.sentinel.EntryType;
  import com.alibaba.csp.sentinel.adapter.dubbo.provider.DemoService;
  import com.alibaba.csp.sentinel.context.Context;
  import com.alibaba.csp.sentinel.context.ContextUtil;
  import com.alibaba.csp.sentinel.node.ClusterNode;
  import com.alibaba.csp.sentinel.node.DefaultNode;
  import com.alibaba.csp.sentinel.node.Node;
  import com.alibaba.csp.sentinel.node.StatisticNode;
  import com.alibaba.csp.sentinel.slotchain.ResourceWrapper;
  import com.alibaba.dubbo.rpc.Invocation;
  import com.alibaba.dubbo.rpc.Invoker;
  import com.alibaba.dubbo.rpc.Result;
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Test;
  import org.mockito.invocation.InvocationOnMock;
  import org.mockito.stubbing.Answer;
  
  import java.lang.reflect.Method;
  import java.util.Map;
  import java.util.Set;
  
  import static org.junit.Assert.*;
  import static org.mockito.Mockito.*;
  
  /**
   * @author cdfive
   */
  public class SentinelDubboProviderFilterTest extends BaseTest {
  
      private SentinelDubboProviderFilter filter = new SentinelDubboProviderFilter();
  
      @Before
      public void setUp() {
          cleanUpAll();
      }
  
      @After
      public void cleanUp() {
          cleanUpAll();
      }
  
      @Test
      public void testInvoke() {
          final String originApplication = "consumerA";
  
          final Invoker invoker = mock(Invoker.class);
          when(invoker.getInterface()).thenReturn(DemoService.class);
  
          final Invocation invocation = mock(Invocation.class);
          Method method = DemoService.class.getMethods()[0];
          when(invocation.getMethodName()).thenReturn(method.getName());
          when(invocation.getParameterTypes()).thenReturn(method.getParameterTypes());
          when(invocation.getAttachment(DubboUtils.DUBBO_APPLICATION_KEY, "")).thenReturn(originApplication);
  
          final Result result = mock(Result.class);
          when(result.hasException()).thenReturn(false);
          when(invoker.invoke(invocation)).thenAnswer(new Answer<Object>() {
              @Override
              public Object answer(InvocationOnMock invocationOnMock) throws Throwable {
                  verifyInvocationStructure(originApplication, invoker, invocation);
                  return result;
              }
          });
  
          filter.invoke(invoker, invocation);
          verify(invoker).invoke(invocation);
  
          Context context = ContextUtil.getContext();
          assertNull(context);
      }
  
      /**
       * Simply verify invocation structure in memory:
       * EntranceNode(resourceName)
       * --InterfaceNode(interfaceName)
       * ----MethodNode(resourceName)
       */
      private void verifyInvocationStructure(String originApplication, Invoker invoker, Invocation invocation) {
          Context context = ContextUtil.getContext();
          assertNotNull(context);
  
          // As ContextUtil.enter(resourceName, application) in SentinelDubboProviderFilter
          String resourceName = filter.getMethodResourceName(invoker, invocation);
          assertEquals(resourceName, context.getName());
          assertEquals(originApplication, context.getOrigin());
  
          DefaultNode entranceNode = context.getEntranceNode();
          ResourceWrapper entranceResource = entranceNode.getId();
          assertEquals(resourceName, entranceResource.getName());
          assertSame(EntryType.IN, entranceResource.getEntryType());
  
          // As SphU.entry(interfaceName, EntryType.IN);
          Set<Node> childList = entranceNode.getChildList();
          assertEquals(1, childList.size());
          DefaultNode interfaceNode = (DefaultNode) childList.iterator().next();
          ResourceWrapper interfaceResource = interfaceNode.getId();
          assertEquals(DemoService.class.getName(), interfaceResource.getName());
          assertSame(EntryType.IN, interfaceResource.getEntryType());
  
          // As SphU.entry(resourceName, EntryType.IN, 1, invocation.getArguments());
          childList = interfaceNode.getChildList();
          assertEquals(1, childList.size());
          DefaultNode methodNode = (DefaultNode) childList.iterator().next();
          ResourceWrapper methodResource = methodNode.getId();
          assertEquals(resourceName, methodResource.getName());
          assertSame(EntryType.IN, methodResource.getEntryType());
  
          // Verify curEntry
          Entry curEntry = context.getCurEntry();
          assertSame(methodNode, curEntry.getCurNode());
          assertSame(interfaceNode, curEntry.getLastNode());
          assertNotNull(curEntry.getOriginNode());// As context origin is not "", originNode should be created
  
          // Verify clusterNode
          ClusterNode methodClusterNode = methodNode.getClusterNode();
          ClusterNode interfaceClusterNode = interfaceNode.getClusterNode();
          assertNotSame(methodClusterNode, interfaceClusterNode);// Different resource->Different ProcessorSlot->Different ClusterNode
  
          // As context origin is not "", the StatisticNode should be created in originCountMap of ClusterNode
          Map<String, StatisticNode> methodOriginCountMap = methodClusterNode.getOriginCountMap();
          assertEquals(1, methodOriginCountMap.size());
          assertTrue(methodOriginCountMap.containsKey(originApplication));
  
          Map<String, StatisticNode> interfaceOriginCountMap = interfaceClusterNode.getOriginCountMap();
          assertEquals(1, interfaceOriginCountMap.size());
          assertTrue(interfaceOriginCountMap.containsKey(originApplication));
      }
  }
  