Add CacheErrorHandler implementation that logs exceptions

See gh-27826

spring-context/src/test/java/org/springframework/cache/interceptor/LoggingCacheErrorHandlerTests.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2002-2021 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.springframework.cache.interceptor;
+
+import org.apache.commons.logging.Log;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.cache.support.NoOpCache;
+
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+/**
+ * Tests for {@link LoggingCacheErrorHandler}.
+ *
+ * @author Adam Ostrožlík
+ */
+@ExtendWith(MockitoExtension.class)
+public class LoggingCacheErrorHandlerTests {
+
+	@Mock
+	Log logger;
+
+	@Test
+	void givenHandlerWhenHandleGetErrorThenLogWithoutException() {
+		LoggingCacheErrorHandler handler = new LoggingCacheErrorHandler.Builder()
+				.setLogger(logger)
+				.build();
+		handler.handleCacheGetError(new RuntimeException(), new NoOpCache("NOOP"), "key");
+		verify(logger, times(1)).warn(anyString());
+	}
+
+	@Test
+	void givenHandlerWhenHandleGetErrorThenLogWithException() {
+		LoggingCacheErrorHandler handler = new LoggingCacheErrorHandler.Builder()
+				.setLogger(logger)
+				.setIncludeStacktrace(true)
+				.build();
+		RuntimeException exception = new RuntimeException();
+		handler.handleCacheGetError(exception, new NoOpCache("NOOP"), "key");
+		verify(logger, times(1)).warn(anyString(), eq(exception));
+	}
+
+}