GH-209 - Register Jackson auto-configuration with @WebMvcTest explici…

…tly.

jmolecules-jackson/pom.xml

@@ -59,6 +59,12 @@
 			<scope>test</scope>
 		</dependency>
 
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+			<scope>test</scope>
+		</dependency>
+
 		<dependency>
 			<groupId>com.jayway.jsonpath</groupId>
 			<artifactId>json-path</artifactId>

jmolecules-jackson/src/main/resources/META-INF/spring/org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureWebMvc.imports

@@ -0,0 +1 @@
+org.jmolecules.jackson.config.JMoleculesJacksonAutoConfiguration

jmolecules-jackson/src/test/java/org/jmolecules/jackson/config/WebMvcTestAutoConfigurationTests.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://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.jmolecules.jackson.config;
+
+import static org.assertj.core.api.Assertions.*;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+/**
+ * @author Oliver Drotbohm
+ */
+@WebMvcTest
+class WebMvcTestAutoConfigurationTests {
+
+	@Autowired ObjectMapper mapper;
+
+	@SpringBootApplication
+	static class Sample {}
+
+	@Test // #209
+	void registersJMoleculesModuleForAtJsonTest() throws Exception {
+		assertThat(mapper.getRegisteredModuleIds()).contains("jmolecules-module");
+	}
+}