MockRestServiceServer test for follow-up request after failure

Issue: SPR-16132

spring-test/src/main/java/org/springframework/test/web/client/AbstractRequestExpectationManager.java

@@ -75,16 +75,15 @@ public abstract class AbstractRequestExpectationManager implements RequestExpect
 
 	@Override
 	public ClientHttpResponse validateRequest(ClientHttpRequest request) throws IOException {
-		List<ClientHttpRequest> requests = this.requests;
-		synchronized (requests) {
-			if (requests.isEmpty()) {
+		synchronized (this.requests) {
+			if (this.requests.isEmpty()) {
 				afterExpectationsDeclared();
 			}
 			try {
 				return validateRequestInternal(request);
 			}
 			finally {
-				requests.add(request);
+				this.requests.add(request);
 			}
 		}
 	}
@@ -97,7 +96,7 @@ public abstract class AbstractRequestExpectationManager implements RequestExpect
 	}
 
 	/**
-	 * Sub-classes must implement the actual validation of the request
+	 * Subclasses must implement the actual validation of the request
 	 * matching to declared expectations.
 	 */
 	protected abstract ClientHttpResponse validateRequestInternal(ClientHttpRequest request)

spring-test/src/test/java/org/springframework/test/web/client/MockRestServiceServerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,25 +16,29 @@
 
 package org.springframework.test.web.client;
 
+import java.net.SocketException;
+
 import org.junit.Test;
 
 import org.springframework.test.web.client.MockRestServiceServer.MockRestServiceServerBuilder;
 import org.springframework.web.client.RestTemplate;
 
-import static org.springframework.test.web.client.match.MockRestRequestMatchers.requestTo;
-import static org.springframework.test.web.client.response.MockRestResponseCreators.withSuccess;
+import static org.springframework.http.HttpMethod.*;
+import static org.springframework.test.web.client.match.MockRestRequestMatchers.*;
+import static org.springframework.test.web.client.response.MockRestResponseCreators.*;
 
 /**
  * Unit tests for {@link MockRestServiceServer}.
+ *
  * @author Rossen Stoyanchev
  */
 public class MockRestServiceServerTests {
 
-	private RestTemplate restTemplate = new RestTemplate();
+	private final RestTemplate restTemplate = new RestTemplate();
 
 
 	@Test
-	public void buildMultipleTimes() throws Exception {
+	public void buildMultipleTimes() {
 		MockRestServiceServerBuilder builder = MockRestServiceServer.bindTo(this.restTemplate);
 
 		MockRestServiceServer server = builder.build();
@@ -56,7 +60,7 @@ public class MockRestServiceServerTests {
 	}
 
 	@Test(expected = AssertionError.class)
-	public void exactExpectOrder() throws Exception {
+	public void exactExpectOrder() {
 		MockRestServiceServer server = MockRestServiceServer.bindTo(this.restTemplate)
 				.ignoreExpectOrder(false).build();
 
@@ -66,7 +70,7 @@ public class MockRestServiceServerTests {
 	}
 
 	@Test
-	public void ignoreExpectOrder() throws Exception {
+	public void ignoreExpectOrder() {
 		MockRestServiceServer server = MockRestServiceServer.bindTo(this.restTemplate)
 				.ignoreExpectOrder(true).build();
 
@@ -78,7 +82,7 @@ public class MockRestServiceServerTests {
 	}
 
 	@Test
-	public void resetAndReuseServer() throws Exception {
+	public void resetAndReuseServer() {
 		MockRestServiceServer server = MockRestServiceServer.bindTo(this.restTemplate).build();
 
 		server.expect(requestTo("/foo")).andRespond(withSuccess());
@@ -92,7 +96,7 @@ public class MockRestServiceServerTests {
 	}
 
 	@Test
-	public void resetAndReuseServerWithUnorderedExpectationManager() throws Exception {
+	public void resetAndReuseServerWithUnorderedExpectationManager() {
 		MockRestServiceServer server = MockRestServiceServer.bindTo(this.restTemplate)
 				.ignoreExpectOrder(true).build();
 
@@ -108,4 +112,24 @@ public class MockRestServiceServerTests {
 		server.verify();
 	}
 
+	@Test  // SPR-16132
+	public void followUpRequestAfterFailure() {
+		MockRestServiceServer server = MockRestServiceServer.bindTo(this.restTemplate).build();
+
+		server.expect(requestTo("/some-service/some-endpoint"))
+				.andRespond(request -> { throw new SocketException("pseudo network error"); });
+
+		server.expect(requestTo("/reporting-service/report-error"))
+				.andExpect(method(POST)).andRespond(withSuccess());
+
+		try {
+			this.restTemplate.getForEntity("/some-service/some-endpoint", String.class);
+		}
+		catch (Exception ex) {
+			this.restTemplate.postForEntity("/reporting-service/report-error", ex.toString(), String.class);
+		}
+
+		server.verify();
+	}
+
 }

spring-test/src/test/java/org/springframework/test/web/client/SimpleRequestExpectationManagerTests.java

@@ -28,21 +28,15 @@ import org.springframework.http.HttpMethod;
 import org.springframework.http.client.ClientHttpRequest;
 import org.springframework.mock.http.client.MockClientHttpRequest;
 
-import static org.junit.Assert.assertEquals;
-import static org.springframework.http.HttpMethod.GET;
-import static org.springframework.http.HttpMethod.POST;
-import static org.springframework.test.util.AssertionErrors.fail;
-import static org.springframework.test.web.client.ExpectedCount.max;
-import static org.springframework.test.web.client.ExpectedCount.min;
-import static org.springframework.test.web.client.ExpectedCount.once;
-import static org.springframework.test.web.client.ExpectedCount.times;
-import static org.springframework.test.web.client.ExpectedCount.twice;
-import static org.springframework.test.web.client.match.MockRestRequestMatchers.method;
-import static org.springframework.test.web.client.match.MockRestRequestMatchers.requestTo;
-import static org.springframework.test.web.client.response.MockRestResponseCreators.withSuccess;
+import static org.junit.Assert.*;
+import static org.springframework.http.HttpMethod.*;
+import static org.springframework.test.web.client.ExpectedCount.*;
+import static org.springframework.test.web.client.match.MockRestRequestMatchers.*;
+import static org.springframework.test.web.client.response.MockRestResponseCreators.*;
 
 /**
  * Unit tests for {@link SimpleRequestExpectationManager}.
+ *
  * @author Rossen Stoyanchev
  */
 public class SimpleRequestExpectationManagerTests {
@@ -188,16 +182,17 @@ public class SimpleRequestExpectationManagerTests {
 
 	@Test  // SPR-16132
 	public void sequentialRequestsWithFirstFailing() throws Exception {
-		this.manager.expectRequest(once(), requestTo("/foo")).andExpect(method(GET))
-				.andRespond(request -> { throw new SocketException("pseudo network error"); });
-		this.manager.expectRequest(once(), requestTo("/handle-error")).andExpect(method(POST)).andRespond(withSuccess());
+		this.manager.expectRequest(once(), requestTo("/foo")).
+				andExpect(method(GET)).andRespond(request -> { throw new SocketException("pseudo network error"); });
+		this.manager.expectRequest(once(), requestTo("/handle-error")).
+				andExpect(method(POST)).andRespond(withSuccess());
 
 		try {
 			this.manager.validateRequest(createRequest(GET, "/foo"));
-			fail("expected exception");
+			fail("Expected SocketException");
 		}
-		catch (SocketException e) {
-			//expected
+		catch (SocketException ex) {
+			// expected
 		}
 		this.manager.validateRequest(createRequest(POST, "/handle-error"));
 		this.manager.verify();

spring-test/src/test/java/org/springframework/test/web/client/UnorderedRequestExpectationManagerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,18 +26,15 @@ import org.junit.rules.ExpectedException;
 import org.springframework.http.HttpMethod;
 import org.springframework.http.client.ClientHttpRequest;
 
-import static org.junit.Assert.assertEquals;
-import static org.springframework.http.HttpMethod.GET;
-import static org.springframework.test.web.client.ExpectedCount.max;
-import static org.springframework.test.web.client.ExpectedCount.min;
-import static org.springframework.test.web.client.ExpectedCount.once;
-import static org.springframework.test.web.client.ExpectedCount.twice;
-import static org.springframework.test.web.client.match.MockRestRequestMatchers.method;
-import static org.springframework.test.web.client.match.MockRestRequestMatchers.requestTo;
-import static org.springframework.test.web.client.response.MockRestResponseCreators.withSuccess;
+import static org.junit.Assert.*;
+import static org.springframework.http.HttpMethod.*;
+import static org.springframework.test.web.client.ExpectedCount.*;
+import static org.springframework.test.web.client.match.MockRestRequestMatchers.*;
+import static org.springframework.test.web.client.response.MockRestResponseCreators.*;
 
 /**
  * Unit tests for {@link UnorderedRequestExpectationManager}.
+ *
  * @author Rossen Stoyanchev
  */
 public class UnorderedRequestExpectationManagerTests {
@@ -131,4 +128,5 @@ public class UnorderedRequestExpectationManagerTests {
 			throw new IllegalStateException(ex);
 		}
 	}
+
 }