Polish MockServerHttpRequest|Response

spring-test/src/main/java/org/springframework/mock/http/server/reactive/MockServerHttpRequest.java

@@ -18,16 +18,17 @@ package org.springframework.mock.http.server.reactive;
 
 import java.net.InetSocketAddress;
 import java.net.URI;
-import java.nio.ByteBuffer;
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Optional;
 
 import org.reactivestreams.Publisher;
 import reactor.core.publisher.Flux;
 
 import org.springframework.core.io.buffer.DataBuffer;
+import org.springframework.core.io.buffer.DataBufferFactory;
 import org.springframework.core.io.buffer.DefaultDataBufferFactory;
 import org.springframework.http.HttpCookie;
 import org.springframework.http.HttpHeaders;
@@ -35,18 +36,17 @@ import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpRange;
 import org.springframework.http.MediaType;
 import org.springframework.http.server.reactive.AbstractServerHttpRequest;
-import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MimeType;
 import org.springframework.util.MultiValueMap;
 import org.springframework.web.util.UriComponentsBuilder;
 
 /**
- * Mock implementation of {@link ServerHttpRequest}.
+ * Mock extension of {@link AbstractServerHttpRequest} for use in tests without
+ * an actual server.
  *
- * <p><strong>Note:</strong> this class extends the same
+ * <p>Use the static builder methods in this class to create an instance possibly
- * {@link AbstractServerHttpRequest} base class as actual server-specific
+ * further creating a {@link MockServerWebExchange} via {@link #toExchange()}.
- * implementation and is therefore read-only once created. Use static builder
- * methods in this class to build up request instances.
  *
  * @author Rossen Stoyanchev
  * @since 5.0
@@ -231,7 +231,7 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 		/**
 		 * Add one or more cookies.
 		 */
-		B cookie(String path, HttpCookie... cookie);
+		B cookie(String name, HttpCookie... cookie);
 
 		/**
 		 * Add the given cookies.
@@ -356,6 +356,9 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 
 	private static class DefaultBodyBuilder implements BodyBuilder {
 
+		private static final DataBufferFactory BUFFER_FACTORY = new DefaultDataBufferFactory();
+
+
 		private final HttpMethod method;
 
 		private final URI url;
@@ -387,8 +390,8 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 		}
 
 		@Override
-		public BodyBuilder cookie(String path, HttpCookie... cookies) {
+		public BodyBuilder cookie(String name, HttpCookie... cookies) {
-			this.cookies.put(path, Arrays.asList(cookies));
+			this.cookies.put(name, Arrays.asList(cookies));
 			return this;
 		}
 
@@ -460,28 +463,6 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 			return this;
 		}
 
-		@Override
-		public MockServerHttpRequest body(Publisher<? extends DataBuffer> body) {
-			return new MockServerHttpRequest(this.method, this.url, this.contextPath,
-					this.headers, this.cookies, this.remoteAddress, body);
-		}
-
-		@Override
-		public MockServerHttpRequest body(String body) {
-			Charset charset = getCharset();
-			byte[] bytes = body.getBytes(charset);
-			ByteBuffer byteBuffer = ByteBuffer.wrap(bytes);
-			DataBuffer buffer = new DefaultDataBufferFactory().wrap(byteBuffer);
-			return body(Flux.just(buffer));
-		}
-
-		private Charset getCharset() {
-			MediaType contentType = this.headers.getContentType();
-			Charset charset = (contentType != null ? contentType.getCharset() : null);
-			charset = charset != null ? charset : StandardCharsets.UTF_8;
-			return charset;
-		}
-
 		@Override
 		public MockServerHttpRequest build() {
 			return body(Flux.empty());
@@ -491,6 +472,22 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 		public MockServerWebExchange toExchange() {
 			return build().toExchange();
 		}
+
+		@Override
+		public MockServerHttpRequest body(String body) {
+			return body(Flux.just(BUFFER_FACTORY.wrap(body.getBytes(getCharset()))));
+		}
+
+		private Charset getCharset() {
+			return Optional.ofNullable(this.headers.getContentType())
+					.map(MimeType::getCharset).orElse(StandardCharsets.UTF_8);
+		}
+
+		@Override
+		public MockServerHttpRequest body(Publisher<? extends DataBuffer> body) {
+			return new MockServerHttpRequest(this.method, this.url, this.contextPath,
+					this.headers, this.cookies, this.remoteAddress, body);
+		}
 	}
 
 }

spring-test/src/main/java/org/springframework/mock/http/server/reactive/MockServerHttpResponse.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.
@@ -18,6 +18,7 @@ package org.springframework.mock.http.server.reactive;
 
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
+import java.util.Optional;
 import java.util.function.Function;
 
 import org.reactivestreams.Publisher;
@@ -27,31 +28,32 @@ import reactor.core.publisher.Mono;
 import org.springframework.core.io.buffer.DataBuffer;
 import org.springframework.core.io.buffer.DataBufferUtils;
 import org.springframework.core.io.buffer.DefaultDataBufferFactory;
-import org.springframework.http.MediaType;
 import org.springframework.http.server.reactive.AbstractServerHttpResponse;
-import org.springframework.http.server.reactive.ServerHttpResponse;
 import org.springframework.util.Assert;
+import org.springframework.util.MimeType;
 
 /**
- * Mock implementation of {@link ServerHttpResponse}.
+ * Mock extension of {@link AbstractServerHttpResponse} for use in tests without
+ * an actual server.
+ *
+ * <p>By default response content is consumed in full upon writing and cached
+ * for subsequent access, however it is also possible to set a custom
+ * {@link #setWriteHandler(Function) writeHandler}.
+ *
  * @author Rossen Stoyanchev
  * @since 5.0
  */
 public class MockServerHttpResponse extends AbstractServerHttpResponse {
 
-	private Flux<DataBuffer> body = Flux.error(
+	private Flux<DataBuffer> body = Flux.error(new IllegalStateException(
-			new IllegalStateException("The body is not set. " +
+			"No content was written nor was setComplete() called on this response."));
-					"Did handling complete with success? Is a custom \"writeHandler\" configured?"));
 
-	private Function<Flux<DataBuffer>, Mono<Void>> writeHandler = initDefaultWriteHandler();
+	private Function<Flux<DataBuffer>, Mono<Void>> writeHandler;
 
 
 	public MockServerHttpResponse() {
 		super(new DefaultDataBufferFactory());
-	}
+		this.writeHandler = body -> {
-
-	private Function<Flux<DataBuffer>, Mono<Void>> initDefaultWriteHandler() {
-		return body -> {
 			this.body = body.cache();
 			return this.body.then();
 		};
@@ -59,60 +61,20 @@ public class MockServerHttpResponse extends AbstractServerHttpResponse {
 
 
 	/**
-	 * Return the request body, or an error stream if the body was never set
+	 * Configure a custom handler to consume the response body.
-	 * or when {@link #setWriteHandler} is configured.
+	 * <p>By default, response body content is consumed in full and cached for
-	 */
+	 * subsequent access in tests. Use this option to take control over how the
-	public Flux<DataBuffer> getBody() {
+	 * response body is consumed.
-		return this.body;
-	}
-
-	/**
-	 * Shortcut method that delegates to {@link #getBody()} and then aggregates
-	 * the data buffers and converts to a String using the charset of the
-	 * Content-Type header or falling back on "UTF-8" by default.
-	 */
-	public Mono<String> getBodyAsString() {
-		Charset charset = getCharset();
-		return getBody()
-				.reduce(bufferFactory().allocateBuffer(), (previous, current) -> {
-					previous.write(current);
-					DataBufferUtils.release(current);
-					return previous;
-				})
-				.map(buffer -> bufferToString(buffer, charset));
-	}
-
-	private static String bufferToString(DataBuffer buffer, Charset charset) {
-		Assert.notNull(charset, "'charset' must not be null");
-		byte[] bytes = new byte[buffer.readableByteCount()];
-		buffer.read(bytes);
-		return new String(bytes, charset);
-	}
-
-	private Charset getCharset() {
-		Charset charset = null;
-		MediaType contentType = getHeaders().getContentType();
-		if (contentType != null) {
-			charset = contentType.getCharset();
-		}
-		return (charset != null ? charset : StandardCharsets.UTF_8);
-	}
-
-	/**
-	 * Configure a custom handler for writing the request body.
-	 *
-	 * <p>The default write handler consumes and caches the request body so it
-	 * may be accessed subsequently, e.g. in test assertions. Use this property
-	 * when the request body is an infinite stream.
-	 *
 	 * @param writeHandler the write handler to use returning {@code Mono<Void>}
 	 * when the body has been "written" (i.e. consumed).
 	 */
 	public void setWriteHandler(Function<Flux<DataBuffer>, Mono<Void>> writeHandler) {
 		Assert.notNull(writeHandler, "'writeHandler' is required");
+		this.body = Flux.error(new IllegalStateException("Not available with custom write handler."));
 		this.writeHandler = writeHandler;
 	}
 
+
 	@Override
 	protected void applyStatusCode() {
 	}
@@ -131,7 +93,9 @@ public class MockServerHttpResponse extends AbstractServerHttpResponse {
 	}
 
 	@Override
-	protected Mono<Void> writeAndFlushWithInternal(Publisher<? extends Publisher<? extends DataBuffer>> body) {
+	protected Mono<Void> writeAndFlushWithInternal(
+			Publisher<? extends Publisher<? extends DataBuffer>> body) {
+
 		return this.writeHandler.apply(Flux.from(body).concatMap(Flux::from));
 	}
 
@@ -140,4 +104,36 @@ public class MockServerHttpResponse extends AbstractServerHttpResponse {
 		return doCommit(() -> Mono.defer(() -> this.writeHandler.apply(Flux.empty())));
 	}
 
+	/**
+	 * Return the response body or an error stream if the body was not set.
+	 */
+	public Flux<DataBuffer> getBody() {
+		return this.body;
+	}
+
+	/**
+	 * Aggregate response data and convert to a String using the "Content-Type"
+	 * charset or "UTF-8" by default.
+	 */
+	public Mono<String> getBodyAsString() {
+
+		Charset charset = Optional.ofNullable(getHeaders().getContentType()).map(MimeType::getCharset)
+				.orElse(StandardCharsets.UTF_8);
+
+		return getBody()
+				.reduce(bufferFactory().allocateBuffer(), (previous, current) -> {
+					previous.write(current);
+					DataBufferUtils.release(current);
+					return previous;
+				})
+				.map(buffer -> bufferToString(buffer, charset));
+	}
+
+	private static String bufferToString(DataBuffer buffer, Charset charset) {
+		Assert.notNull(charset, "'charset' must not be null");
+		byte[] bytes = new byte[buffer.readableByteCount()];
+		buffer.read(bytes);
+		return new String(bytes, charset);
+	}
+
 }

spring-web/src/test/java/org/springframework/mock/http/server/reactive/test/MockServerHttpRequest.java

@@ -18,16 +18,17 @@ package org.springframework.mock.http.server.reactive.test;
 
 import java.net.InetSocketAddress;
 import java.net.URI;
-import java.nio.ByteBuffer;
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Optional;
 
 import org.reactivestreams.Publisher;
 import reactor.core.publisher.Flux;
 
 import org.springframework.core.io.buffer.DataBuffer;
+import org.springframework.core.io.buffer.DataBufferFactory;
 import org.springframework.core.io.buffer.DefaultDataBufferFactory;
 import org.springframework.http.HttpCookie;
 import org.springframework.http.HttpHeaders;
@@ -35,18 +36,17 @@ import org.springframework.http.HttpMethod;
 import org.springframework.http.HttpRange;
 import org.springframework.http.MediaType;
 import org.springframework.http.server.reactive.AbstractServerHttpRequest;
-import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MimeType;
 import org.springframework.util.MultiValueMap;
 import org.springframework.web.util.UriComponentsBuilder;
 
 /**
- * Mock implementation of {@link ServerHttpRequest}.
+ * Mock extension of {@link AbstractServerHttpRequest} for use in tests without
+ * an actual server.
  *
- * <p><strong>Note:</strong> this class extends the same
+ * <p>Use the static builder methods in this class to create an instance possibly
- * {@link AbstractServerHttpRequest} base class as actual server-specific
+ * further creating a {@link MockServerWebExchange} via {@link #toExchange()}.
- * implementation and is therefore read-only once created. Use static builder
- * methods in this class to build up request instances.
  *
  * @author Rossen Stoyanchev
  * @since 5.0
@@ -66,7 +66,8 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 
 	private MockServerHttpRequest(HttpMethod httpMethod, URI uri, String contextPath,
 			HttpHeaders headers, MultiValueMap<String, HttpCookie> cookies,
-			InetSocketAddress remoteAddress, Publisher<? extends DataBuffer> body) {
+			InetSocketAddress remoteAddress,
+			Publisher<? extends DataBuffer> body) {
 
 		super(uri, headers);
 		this.httpMethod = httpMethod;
@@ -230,7 +231,7 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 		/**
 		 * Add one or more cookies.
 		 */
-		B cookie(String path, HttpCookie... cookie);
+		B cookie(String name, HttpCookie... cookie);
 
 		/**
 		 * Add the given cookies.
@@ -355,6 +356,9 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 
 	private static class DefaultBodyBuilder implements BodyBuilder {
 
+		private static final DataBufferFactory BUFFER_FACTORY = new DefaultDataBufferFactory();
+
+
 		private final HttpMethod method;
 
 		private final URI url;
@@ -386,8 +390,8 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 		}
 
 		@Override
-		public BodyBuilder cookie(String path, HttpCookie... cookies) {
+		public BodyBuilder cookie(String name, HttpCookie... cookies) {
-			this.cookies.put(path, Arrays.asList(cookies));
+			this.cookies.put(name, Arrays.asList(cookies));
 			return this;
 		}
 
@@ -459,28 +463,6 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 			return this;
 		}
 
-		@Override
-		public MockServerHttpRequest body(Publisher<? extends DataBuffer> body) {
-			return new MockServerHttpRequest(this.method, this.url, this.contextPath,
-					this.headers, this.cookies, this.remoteAddress, body);
-		}
-
-		@Override
-		public MockServerHttpRequest body(String body) {
-			Charset charset = getCharset();
-			byte[] bytes = body.getBytes(charset);
-			ByteBuffer byteBuffer = ByteBuffer.wrap(bytes);
-			DataBuffer buffer = new DefaultDataBufferFactory().wrap(byteBuffer);
-			return body(Flux.just(buffer));
-		}
-
-		private Charset getCharset() {
-			MediaType contentType = this.headers.getContentType();
-			Charset charset = (contentType != null ? contentType.getCharset() : null);
-			charset = charset != null ? charset : StandardCharsets.UTF_8;
-			return charset;
-		}
-
 		@Override
 		public MockServerHttpRequest build() {
 			return body(Flux.empty());
@@ -490,6 +472,22 @@ public class MockServerHttpRequest extends AbstractServerHttpRequest {
 		public MockServerWebExchange toExchange() {
 			return build().toExchange();
 		}
+
+		@Override
+		public MockServerHttpRequest body(String body) {
+			return body(Flux.just(BUFFER_FACTORY.wrap(body.getBytes(getCharset()))));
+		}
+
+		private Charset getCharset() {
+			return Optional.ofNullable(this.headers.getContentType())
+					.map(MimeType::getCharset).orElse(StandardCharsets.UTF_8);
+		}
+
+		@Override
+		public MockServerHttpRequest body(Publisher<? extends DataBuffer> body) {
+			return new MockServerHttpRequest(this.method, this.url, this.contextPath,
+					this.headers, this.cookies, this.remoteAddress, body);
+		}
 	}
 
 }

spring-web/src/test/java/org/springframework/mock/http/server/reactive/test/MockServerHttpResponse.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.
@@ -18,6 +18,7 @@ package org.springframework.mock.http.server.reactive.test;
 
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
+import java.util.Optional;
 import java.util.function.Function;
 
 import org.reactivestreams.Publisher;
@@ -27,31 +28,32 @@ import reactor.core.publisher.Mono;
 import org.springframework.core.io.buffer.DataBuffer;
 import org.springframework.core.io.buffer.DataBufferUtils;
 import org.springframework.core.io.buffer.DefaultDataBufferFactory;
-import org.springframework.http.MediaType;
 import org.springframework.http.server.reactive.AbstractServerHttpResponse;
-import org.springframework.http.server.reactive.ServerHttpResponse;
 import org.springframework.util.Assert;
+import org.springframework.util.MimeType;
 
 /**
- * Mock implementation of {@link ServerHttpResponse}.
+ * Mock extension of {@link AbstractServerHttpResponse} for use in tests without
+ * an actual server.
+ *
+ * <p>By default response content is consumed in full upon writing and cached
+ * for subsequent access, however it is also possible to set a custom
+ * {@link #setWriteHandler(Function) writeHandler}.
+ *
  * @author Rossen Stoyanchev
  * @since 5.0
  */
 public class MockServerHttpResponse extends AbstractServerHttpResponse {
 
-	private Flux<DataBuffer> body = Flux.error(
+	private Flux<DataBuffer> body = Flux.error(new IllegalStateException(
-			new IllegalStateException("The body is not set. " +
+			"No content was written nor was setComplete() called on this response."));
-					"Did handling complete with success? Is a custom \"writeHandler\" configured?"));
 
-	private Function<Flux<DataBuffer>, Mono<Void>> writeHandler = initDefaultWriteHandler();
+	private Function<Flux<DataBuffer>, Mono<Void>> writeHandler;
 
 
 	public MockServerHttpResponse() {
 		super(new DefaultDataBufferFactory());
-	}
+		this.writeHandler = body -> {
-
-	private Function<Flux<DataBuffer>, Mono<Void>> initDefaultWriteHandler() {
-		return body -> {
 			this.body = body.cache();
 			return this.body.then();
 		};
@@ -59,60 +61,20 @@ public class MockServerHttpResponse extends AbstractServerHttpResponse {
 
 
 	/**
-	 * Return the request body, or an error stream if the body was never set
+	 * Configure a custom handler to consume the response body.
-	 * or when {@link #setWriteHandler} is configured.
+	 * <p>By default, response body content is consumed in full and cached for
-	 */
+	 * subsequent access in tests. Use this option to take control over how the
-	public Flux<DataBuffer> getBody() {
+	 * response body is consumed.
-		return this.body;
-	}
-
-	/**
-	 * Shortcut method that delegates to {@link #getBody()} and then aggregates
-	 * the data buffers and converts to a String using the charset of the
-	 * Content-Type header or falling back on "UTF-8" by default.
-	 */
-	public Mono<String> getBodyAsString() {
-		Charset charset = getCharset();
-		return getBody()
-				.reduce(bufferFactory().allocateBuffer(), (previous, current) -> {
-					previous.write(current);
-					DataBufferUtils.release(current);
-					return previous;
-				})
-				.map(buffer -> bufferToString(buffer, charset));
-	}
-
-	private static String bufferToString(DataBuffer buffer, Charset charset) {
-		Assert.notNull(charset, "'charset' must not be null");
-		byte[] bytes = new byte[buffer.readableByteCount()];
-		buffer.read(bytes);
-		return new String(bytes, charset);
-	}
-
-	private Charset getCharset() {
-		Charset charset = null;
-		MediaType contentType = getHeaders().getContentType();
-		if (contentType != null) {
-			charset = contentType.getCharset();
-		}
-		return (charset != null ? charset : StandardCharsets.UTF_8);
-	}
-
-	/**
-	 * Configure a custom handler for writing the request body.
-	 *
-	 * <p>The default write handler consumes and caches the request body so it
-	 * may be accessed subsequently, e.g. in test assertions. Use this property
-	 * when the request body is an infinite stream.
-	 *
 	 * @param writeHandler the write handler to use returning {@code Mono<Void>}
 	 * when the body has been "written" (i.e. consumed).
 	 */
 	public void setWriteHandler(Function<Flux<DataBuffer>, Mono<Void>> writeHandler) {
 		Assert.notNull(writeHandler, "'writeHandler' is required");
+		this.body = Flux.error(new IllegalStateException("Not available with custom write handler."));
 		this.writeHandler = writeHandler;
 	}
 
+
 	@Override
 	protected void applyStatusCode() {
 	}
@@ -131,7 +93,9 @@ public class MockServerHttpResponse extends AbstractServerHttpResponse {
 	}
 
 	@Override
-	protected Mono<Void> writeAndFlushWithInternal(Publisher<? extends Publisher<? extends DataBuffer>> body) {
+	protected Mono<Void> writeAndFlushWithInternal(
+			Publisher<? extends Publisher<? extends DataBuffer>> body) {
+
 		return this.writeHandler.apply(Flux.from(body).concatMap(Flux::from));
 	}
 
@@ -140,4 +104,36 @@ public class MockServerHttpResponse extends AbstractServerHttpResponse {
 		return doCommit(() -> Mono.defer(() -> this.writeHandler.apply(Flux.empty())));
 	}
 
+	/**
+	 * Return the response body or an error stream if the body was not set.
+	 */
+	public Flux<DataBuffer> getBody() {
+		return this.body;
+	}
+
+	/**
+	 * Aggregate response data and convert to a String using the "Content-Type"
+	 * charset or "UTF-8" by default.
+	 */
+	public Mono<String> getBodyAsString() {
+
+		Charset charset = Optional.ofNullable(getHeaders().getContentType()).map(MimeType::getCharset)
+				.orElse(StandardCharsets.UTF_8);
+
+		return getBody()
+				.reduce(bufferFactory().allocateBuffer(), (previous, current) -> {
+					previous.write(current);
+					DataBufferUtils.release(current);
+					return previous;
+				})
+				.map(buffer -> bufferToString(buffer, charset));
+	}
+
+	private static String bufferToString(DataBuffer buffer, Charset charset) {
+		Assert.notNull(charset, "'charset' must not be null");
+		byte[] bytes = new byte[buffer.readableByteCount()];
+		buffer.read(bytes);
+		return new String(bytes, charset);
+	}
+
 }

spring-webflux/src/test/java/org/springframework/web/reactive/resource/ResourceWebHandlerTests.java

@@ -124,7 +124,7 @@ public class ResourceWebHandlerTests {
 		assertEquals(1, headers.get("Accept-Ranges").size());
 
 		StepVerifier.create(exchange.getResponse().getBody())
-				.expectErrorMatches(ex -> ex.getMessage().startsWith("The body is not set."))
+				.expectErrorMatches(ex -> ex.getMessage().startsWith("No content was written"))
 				.verify();
 	}
 

spring-webflux/src/test/java/org/springframework/web/reactive/result/method/annotation/MessageWriterResultHandlerTests.java

@@ -133,7 +133,7 @@ public class MessageWriterResultHandlerTests {
 
 		assertNull(this.exchange.getResponse().getHeaders().get("Content-Type"));
 		StepVerifier.create(this.exchange.getResponse().getBody())
-				.expectErrorMatches(ex -> ex.getMessage().startsWith("The body is not set.")).verify();
+				.expectErrorMatches(ex -> ex.getMessage().startsWith("No content was written")).verify();
 	}
 
 	@Test  // SPR-13135