CAMEL-21199: Added unit test, thanks to Radovan Netuka
diff --git a/components/camel-jackson/src/test/java/org/apache/camel/component/jackson/JacksonMarshalMultibyteCharactersTest.java b/components/camel-jackson/src/test/java/org/apache/camel/component/jackson/JacksonMarshalMultibyteCharactersTest.java
new file mode 100644
index 0000000..03d9577
--- /dev/null
+++ b/components/camel-jackson/src/test/java/org/apache/camel/component/jackson/JacksonMarshalMultibyteCharactersTest.java
@@ -0,0 +1,68 @@
+/*
+ * 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.camel.component.jackson;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.camel.builder.RouteBuilder;
+import org.apache.camel.component.mock.MockEndpoint;
+import org.apache.camel.test.junit5.CamelTestSupport;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+
+public class JacksonMarshalMultibyteCharactersTest extends CamelTestSupport {
+
+ @Test
+ public void testMarshal4ByteCharacter() throws Exception {
+ Map<String, Object> in = new HashMap<>();
+ in.put("name", "\u30b7\u30b9\u30c6\u30e0\uD867\uDE3D");
+
+ MockEndpoint mock = getMockEndpoint("mock:reverse");
+ mock.expectedMessageCount(1);
+ mock.message(0).body().isInstanceOf(Map.class);
+ mock.message(0).body().isEqualTo(in);
+
+ Object marshalled = template.requestBody("direct:in", in);
+ String marshalledAsString = context.getTypeConverter().convertTo(String.class, marshalled);
+
+ // prior to fixing CAMEL-21199, this was the result returned by Jackson
+ assertNotEquals("{\"name\":\"\u30b7\u30b9\u30c6\u30e0\\uD867\\uDE3D\"}", marshalledAsString);
+
+ assertEquals("{\"name\":\"\u30b7\u30b9\u30c6\u30e0\uD867\uDE3D\"}", marshalledAsString);
+
+ template.sendBody("direct:back", marshalled);
+ mock.assertIsSatisfied();
+ }
+
+ @Override
+ protected RouteBuilder createRouteBuilder() {
+ return new RouteBuilder() {
+
+ @Override
+ public void configure() {
+ JacksonDataFormat format = new JacksonDataFormat();
+ format.setUseWriter(true);
+
+ from("direct:in").marshal(format).log("marshal: ${body}");
+ from("direct:back").unmarshal(format).log("unmarshal: ${body}").to("mock:reverse");
+ }
+ };
+ }
+}
