Add the BadCredentialsExceptionMixin to help Jackson serialization of BadCredentialsException

core/src/test/java/org/springframework/security/jackson2/BadCredentialsExceptionMixinTests.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2002-2018 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
+ *
+ *      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.springframework.security.jackson2;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import org.json.JSONException;
+import org.junit.Test;
+import org.skyscreamer.jsonassert.JSONAssert;
+import org.springframework.security.authentication.BadCredentialsException;
+
+import java.io.IOException;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Yannick Lombardi
+ * @since 5.0
+ */
+public class BadCredentialsExceptionMixinTests extends AbstractMixinTests {
+
+	// @formatter:off
+	private static final String EXCEPTION_JSON = "{"
+		+ "\"@class\": \"org.springframework.security.authentication.BadCredentialsException\","
+		+ "\"localizedMessage\": \"message\", "
+		+ "\"message\": \"message\", "
+		+ "\"suppressed\": [\"[Ljava.lang.Throwable;\",[]]"
+		+ "}";
+	// @formatter:on
+
+	@Test
+	public void serializeBadCredentialsExceptionMixinTest() throws JsonProcessingException, JSONException {
+		BadCredentialsException exception = new BadCredentialsException("message");
+		String serializedJson = mapper.writeValueAsString(exception);
+		JSONAssert.assertEquals(EXCEPTION_JSON, serializedJson, true);
+	}
+
+	@Test
+	public void deserializeBadCredentialsExceptionMixinTest() throws IOException {
+		BadCredentialsException exception = mapper.readValue(EXCEPTION_JSON, BadCredentialsException.class);
+		assertThat(exception).isNotNull();
+		assertThat(exception.getCause()).isNull();
+		assertThat(exception.getMessage()).isEqualTo("message");
+		assertThat(exception.getLocalizedMessage()).isEqualTo("message");
+	}
+}