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https://issues.apache.org/jira/browse/SCB-324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16352108#comment-16352108
]
ASF GitHub Bot commented on SCB-324:
------------------------------------
liubao68 commented on a change in pull request #543: [SCB-324] Fault-Injection
handler implementation
URL:
https://github.com/apache/incubator-servicecomb-java-chassis/pull/543#discussion_r165899465
##########
File path:
handlers/handler-fault-injection/src/test/java/org/apache/servicecomb/faultinjection/TestFaultInjectHandler.java
##########
@@ -0,0 +1,421 @@
+/*
+ * 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.servicecomb.faultinjection;
+
+import static org.junit.Assert.assertEquals;
+import java.util.concurrent.atomic.AtomicLong;
+import org.apache.servicecomb.core.Invocation;
+import org.apache.servicecomb.core.Transport;
+import org.apache.servicecomb.core.definition.OperationMeta;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mockito;
+import org.apache.servicecomb.swagger.invocation.AsyncResponse;
+
+/**
+ * Tests the fault injection handler functionality.
+ */
+public class TestFaultInjectHandler {
+ FaultInjectionHandler handler;
+
+ Invocation invocation;
+
+ AsyncResponse asyncResp;
+
+ OperationMeta operationMeta;
+
+ private Transport transport;
+
+ @Before
+ public void setUp() throws Exception {
+ handler = new FaultInjectionHandler();
+
+ invocation = Mockito.mock(Invocation.class);
+
+ asyncResp = Mockito.mock(AsyncResponse.class);
+
+ operationMeta = Mockito.mock(OperationMeta.class);
+
+ transport = Mockito.mock(Transport.class);
+ }
+
+ @After
+ public void tearDown() throws Exception {
+ handler = null;
+
+ invocation = null;
+
+ asyncResp = null;
+
+ operationMeta = null;
+
+ transport = null;
+ }
+
+ /**
+ * Tests the fault injection handler functionality with default values for
+ * highway transport.
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testFaultInjectHandlerHighwayWithDefaultCfg() throws Exception {
+
+
Mockito.when(invocation.getMicroserviceQualifiedName()).thenReturn("MicroserviceQualifiedName1");
+ Mockito.when(invocation.getTransport()).thenReturn(transport);
+ Mockito.when(transport.getName()).thenReturn("highway");
+ Mockito.when(invocation.getOperationName()).thenReturn("sayHello");
+ Mockito.when(invocation.getSchemaId()).thenReturn("sayHelloSchema");
+ Mockito.when(invocation.getMicroserviceName()).thenReturn("hello");
+
+ handler.handle(invocation, asyncResp);
+
+ AtomicLong count =
FaultInjectionUtil.getOperMetTotalReq("highwayMicroserviceQualifiedName1");
+ assertEquals(2, count.get());
+ }
+
+ /**
+ * Tests the fault injection handler functionality with default values for
rest
+ * transport.
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testFaultInjectHandlerRestWithDefaultCfg() throws Exception {
+
+
Mockito.when(invocation.getMicroserviceQualifiedName()).thenReturn("MicroserviceQualifiedName2");
+ Mockito.when(invocation.getTransport()).thenReturn(transport);
+ Mockito.when(transport.getName()).thenReturn("rest");
+ Mockito.when(invocation.getOperationName()).thenReturn("sayHello");
+ Mockito.when(invocation.getSchemaId()).thenReturn("sayHelloSchema");
+ Mockito.when(invocation.getMicroserviceName()).thenReturn("hello");
+
+ handler.handle(invocation, asyncResp);
+
+ AtomicLong count =
FaultInjectionUtil.getOperMetTotalReq("restMicroserviceQualifiedName2");
+ assertEquals(2, count.get());
+ }
+
+ /**
+ * Tests the fault injection handler functionality with global configuration
+ * with delay/abort condition.
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testFaultInjectHandlerConfigChangeGlobal() throws Exception {
+
+
System.setProperty("cse.governance.Consumer._global.policy.fault.protocols.rest.delay.fixedDelay",
"5");
+
System.setProperty("cse.governance.Consumer._global.policy.fault.protocols.rest.delay.percent",
"10");
+
System.setProperty("cse.governance.Consumer._global.policy.fault.protocols.rest.abort.percent",
"10");
+
System.setProperty("cse.governance.Consumer._global.policy.fault.protocols.rest.abort.httpStatus",
"421");
+
+
Mockito.when(invocation.getMicroserviceQualifiedName()).thenReturn("MicroserviceQualifiedName3");
+ Mockito.when(invocation.getTransport()).thenReturn(transport);
+ Mockito.when(transport.getName()).thenReturn("rest");
+ Mockito.when(invocation.getOperationName()).thenReturn("sayHello");
+ Mockito.when(invocation.getSchemaId()).thenReturn("sayHelloSchema");
+ Mockito.when(invocation.getMicroserviceName()).thenReturn("hello");
+
+ boolean validAssert;
+ try {
+ validAssert = true;
+ handler.handle(invocation, asyncResp);
+ } catch (Exception e) {
+ validAssert = false;
+ }
+
+
System.getProperties().remove("cse.governance.Consumer._global.policy.fault.protocols.rest.delay.fixedDelay");
+
System.getProperties().remove("cse.governance.Consumer._global.policy.fault.protocols.rest.delay.percent");
+
System.getProperties().remove("cse.governance.Consumer._global.policy.fault.protocols.rest.abort.percent");
+
System.getProperties().remove("cse.governance.Consumer._global.policy.fault.protocols.rest.abort.httpStatus");
+
+ Assert.assertTrue(validAssert);
+ AtomicLong count =
FaultInjectionUtil.getOperMetTotalReq("restMicroserviceQualifiedName3");
+ assertEquals(2, count.get());
+ }
+
+ /**
+ * Tests the fault injection handler functionality with service level
configuration
+ * with delay/abort condition.
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testFaultInjectHandlerServiceCfgSuccess() throws Exception {
+
+
System.setProperty("cse.governance.Consumer.carts.policy.fault.protocols.rest.delay.fixedDelay",
"1");
+
System.setProperty("cse.governance.Consumer.carts.policy.fault.protocols.rest.delay.percent",
"10");
+
System.setProperty("cse.governance.Consumer.carts.policy.fault.protocols.rest.abort.percent",
"10");
+
System.setProperty("cse.governance.Consumer.carts.policy.fault.protocols.rest.abort.httpStatus",
"421");
+
+
Mockito.when(invocation.getMicroserviceQualifiedName()).thenReturn("MicroserviceQualifiedName4");
+ Mockito.when(invocation.getTransport()).thenReturn(transport);
+ Mockito.when(transport.getName()).thenReturn("rest");
+ Mockito.when(invocation.getOperationName()).thenReturn("sayHello");
+ Mockito.when(invocation.getSchemaId()).thenReturn("sayHelloSchema");
+ Mockito.when(invocation.getMicroserviceName()).thenReturn("carts");
+
+ boolean validAssert;
+ try {
+ validAssert = true;
+ handler.handle(invocation, asyncResp);
+ } catch (Exception e) {
+ validAssert = false;
+ }
+
+
System.getProperties().remove("cse.governance.Consumer.carts.policy.fault.protocols.rest.delay.fixedDelay");
+
System.getProperties().remove("cse.governance.Consumer.carts.policy.fault.protocols.rest.delay.percent");
+
System.getProperties().remove("cse.governance.Consumer.carts.policy.fault.protocols.rest.abort.percent");
+
System.getProperties().remove("cse.governance.Consumer.carts.policy.fault.protocols.rest.abort.httpStatus");
+
+ Assert.assertTrue(validAssert);
+ AtomicLong count =
FaultInjectionUtil.getOperMetTotalReq("restMicroserviceQualifiedName4");
+ assertEquals(2, count.get());
+ }
+
+ /**
+ * Tests the fault injection handler functionality with schema level
configuration
+ * with delay/abort condition.
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testFaultInjectHandlerSchemaCfgSuccess() throws Exception {
+
+
System.setProperty("cse.governance.Consumer.schemas.testSchema.policy.fault.protocols.rest.delay.fixedDelay",
"1");
+
System.setProperty("cse.governance.Consumer.schemas.testSchema.policy.fault.protocols.rest.delay.percent",
"10");
+
System.setProperty("cse.governance.Consumer.schemas.testSchema.policy.fault.protocols.rest.abort.percent",
"10");
+
System.setProperty("cse.governance.Consumer.schemas.testSchema.policy.fault.protocols.rest.abort.httpStatus",
+ "421");
+
+
Mockito.when(invocation.getMicroserviceQualifiedName()).thenReturn("MicroserviceQualifiedName5");
+ Mockito.when(invocation.getTransport()).thenReturn(transport);
+ Mockito.when(transport.getName()).thenReturn("rest");
+ Mockito.when(invocation.getOperationName()).thenReturn("sayHello");
+ Mockito.when(invocation.getSchemaId()).thenReturn("testSchema");
+ Mockito.when(invocation.getMicroserviceName()).thenReturn("carts");
+
+ boolean validAssert;
+ try {
+ validAssert = true;
+ handler.handle(invocation, asyncResp);
+ } catch (Exception e) {
+ validAssert = false;
+ }
+
+ System.getProperties()
+
.remove("cse.governance.Consumer.schemas.testSchema.policy.fault.protocols.rest.delay.fixedDelay");
+ System.getProperties()
+
.remove("cse.governance.Consumer.schemas.testSchema.policy.fault.protocols.rest.delay.percent");
+ System.getProperties()
+
.remove("cse.governance.Consumer.schemas.testSchema.policy.fault.protocols.rest.abort.percent");
+ System.getProperties()
+
.remove("cse.governance.Consumer.schemas.testSchema.policy.fault.protocols.rest.abort.httpStatus");
+
+ Assert.assertTrue(validAssert);
+ AtomicLong count =
FaultInjectionUtil.getOperMetTotalReq("restMicroserviceQualifiedName5");
+ assertEquals(2, count.get());
+ }
+
+ /**
+ * Tests the fault injection handler functionality with operation level
configuration
+ * with delay/abort condition.
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testFaultInjectHandlerOperationCfgSuccess() throws Exception {
+
+
System.setProperty("cse.governance.Consumer.operations.sayHi.policy.fault.protocols.rest.delay.fixedDelay",
"1");
+
System.setProperty("cse.governance.Consumer.operations.sayHi.policy.fault.protocols.rest.delay.percent",
"10");
+
System.setProperty("cse.governance.Consumer.operations.sayHi.policy.fault.protocols.rest.abort.percent",
"10");
+
System.setProperty("cse.governance.Consumer.operations.sayHi.policy.fault.protocols.rest.abort.httpStatus",
+ "421");
+
+
Mockito.when(invocation.getMicroserviceQualifiedName()).thenReturn("MicroserviceQualifiedName6");
+ Mockito.when(invocation.getTransport()).thenReturn(transport);
+ Mockito.when(transport.getName()).thenReturn("rest");
+ Mockito.when(invocation.getOperationName()).thenReturn("sayHi");
+ Mockito.when(invocation.getSchemaId()).thenReturn("testSchema");
+ Mockito.when(invocation.getMicroserviceName()).thenReturn("carts");
+
+ boolean validAssert;
+ try {
+ validAssert = true;
+ handler.handle(invocation, asyncResp);
+ } catch (Exception e) {
+ validAssert = false;
+ }
+
+ System.getProperties()
+
.remove("cse.governance.Consumer.operations.sayHi.policy.fault.protocols.rest.delay.fixedDelay");
+ System.getProperties()
+
.remove("cse.governance.Consumer.operations.sayHi.policy.fault.protocols.rest.delay.percent");
+ System.getProperties()
+
.remove("cse.governance.Consumer.operations.sayHi.policy.fault.protocols.rest.abort.percent");
+ System.getProperties()
+
.remove("cse.governance.Consumer.operations.sayHi.policy.fault.protocols.rest.abort.httpStatus");
+ Assert.assertTrue(validAssert);
+ AtomicLong count =
FaultInjectionUtil.getOperMetTotalReq("restMicroserviceQualifiedName6");
+ assertEquals(2, count.get());
+ }
+
+ /**
+ * Tests the fault injection handler functionality with configuration change
event for global level config.
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testFaultInjectHandlerConfigChangeEvent1() throws Exception {
+
+
Mockito.when(invocation.getMicroserviceQualifiedName()).thenReturn("MicroserviceQualifiedName7");
+ Mockito.when(invocation.getTransport()).thenReturn(transport);
+ Mockito.when(transport.getName()).thenReturn("rest");
+ Mockito.when(invocation.getOperationName()).thenReturn("sayBye1");
+ Mockito.when(invocation.getSchemaId()).thenReturn("testSchema1");
+ Mockito.when(invocation.getMicroserviceName()).thenReturn("carts1");
+ boolean validAssert;
+ try {
+ validAssert = true;
+ handler.handle(invocation, asyncResp);
+ } catch (Exception e) {
+ validAssert = false;
+ }
+
+ TestFaultInjectUtil
+
.updateProperty("cse.governance.Consumer._global.policy.fault.protocols.rest.delay.fixedDelay",
500);
+
+ handler.handle(invocation, asyncResp);
+
+ Assert.assertTrue(validAssert);
+ AtomicLong count =
FaultInjectionUtil.getOperMetTotalReq("restMicroserviceQualifiedName7");
+ assertEquals(3, count.get());
+ }
+
+ /**
+ * Tests the fault injection handler functionality with configuration change
event for operation level config.
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testFaultInjectHandlerConfigChangeEvent2() throws Exception {
+
System.setProperty("cse.governance.Consumer.operations.sayBye2.policy.fault.protocols.rest.delay.fixedDelay",
"1");
+
+
Mockito.when(invocation.getMicroserviceQualifiedName()).thenReturn("MicroserviceQualifiedName8");
+ Mockito.when(invocation.getTransport()).thenReturn(transport);
+ Mockito.when(transport.getName()).thenReturn("rest");
+ Mockito.when(invocation.getOperationName()).thenReturn("sayBye2");
+ Mockito.when(invocation.getSchemaId()).thenReturn("testSchema2");
+ Mockito.when(invocation.getMicroserviceName()).thenReturn("carts2");
+ boolean validAssert;
+ try {
+ validAssert = true;
+ handler.handle(invocation, asyncResp);
+ } catch (Exception e) {
+ validAssert = false;
+ }
+
+ TestFaultInjectUtil
+
.updateProperty("cse.governance.Consumer.operations.sayBye2.policy.fault.protocols.rest.delay.fixedDelay",
500);
+
+ handler.handle(invocation, asyncResp);
+
+ System.getProperties()
+
.remove("cse.governance.Consumer.operations.sayBye2.policy.fault.protocols.rest.delay.fixedDelay");
+
+ Assert.assertTrue(validAssert);
+ AtomicLong count =
FaultInjectionUtil.getOperMetTotalReq("restMicroserviceQualifiedName8");
+ assertEquals(3, count.get());
+ }
+
+ /**
+ * Tests the fault injection handler functionality with configuration change
event for schema level config.
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testFaultInjectHandlerConfigChangeEvent3() throws Exception {
+
System.setProperty("cse.governance.Consumer.schemas.testSchema3.policy.fault.protocols.rest.delay.fixedDelay",
"1");
+
+
Mockito.when(invocation.getMicroserviceQualifiedName()).thenReturn("MicroserviceQualifiedName9");
+ Mockito.when(invocation.getTransport()).thenReturn(transport);
+ Mockito.when(transport.getName()).thenReturn("rest");
+ Mockito.when(invocation.getOperationName()).thenReturn("sayBye3");
+ Mockito.when(invocation.getSchemaId()).thenReturn("testSchema3");
+ Mockito.when(invocation.getMicroserviceName()).thenReturn("carts3");
+ boolean validAssert;
+ try {
+ validAssert = true;
+ handler.handle(invocation, asyncResp);
+ } catch (Exception e) {
+ validAssert = false;
+ }
+
+ TestFaultInjectUtil
+
.updateProperty("cse.governance.Consumer.schemas.testSchema3.policy.fault.protocols.rest.delay.fixedDelay",
+ 500);
+
+ handler.handle(invocation, asyncResp);
+
+ System.getProperties()
+
.remove("cse.governance.Consumer.schemas.testSchema3.policy.fault.protocols.rest.delay.fixedDelay");
+
+ Assert.assertTrue(validAssert);
+ AtomicLong count =
FaultInjectionUtil.getOperMetTotalReq("restMicroserviceQualifiedName9");
Review comment:
Can you add some assertions to make sure fault injection is taking effect.
e.g. error code is right or time delay is actually happended
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us...@infra.apache.org
> Chassis must support network failure simulation, so that I can developers can
> enhance the robustness of the app
> ---------------------------------------------------------------------------------------------------------------
>
> Key: SCB-324
> URL: https://issues.apache.org/jira/browse/SCB-324
> Project: Apache ServiceComb
> Issue Type: Task
> Components: Java-Chassis
> Reporter: sukesh
> Assignee: sukesh
> Priority: Minor
> Fix For: java-chassis-1.0.0-m1
>
>
> Add new handler for fault injection.
> 1) If handler 'fault-injection' is added in application property
> file(microservice.yaml) then fault-injection handler should include in
> handler chain.
> 2) When handler is called read the configuration and listen the configuration
> event related to fault inject. The sample configuration file is in next slide.
> 3) The configuration mainly consist
> -delay
> -abort
> *delay:*can set the delay for requests based on percentage configured. The
> unit is ms. The delay percentage default value is 100%
> *abort*: Abort the requests based on percentage configured. For rest
> transport protocol error code can be configurable(500, 421) and highway
> protocol does not support for error return. The abort percentage default
> value is 100%
> 4) This features currently supports at consumer side.
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