SPR-8477

+ add no-op cache implementations suitable for cache declarations w/o a backing store

org.springframework.context/src/test/java/org/springframework/cache/NoOpCacheManagerTest.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2011 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.cache;
+
+import static org.junit.Assert.*;
+
+import java.util.UUID;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.springframework.cache.support.NoOpCacheManager;
+
+public class NoOpCacheManagerTest {
+
+	private CacheManager manager;
+
+	@Before
+	public void setup() {
+		manager = new NoOpCacheManager();
+	}
+
+	@Test
+	public void testGetCache() throws Exception {
+		Cache cache = manager.getCache("bucket");
+		assertNotNull(cache);
+		assertSame(cache, manager.getCache("bucket"));
+	}
+
+	@Test
+	public void testNoOpCache() throws Exception {
+		String name = UUID.randomUUID().toString();
+		Cache cache = manager.getCache(name);
+		assertEquals(name, cache.getName());
+		Object key = new Object();
+		cache.put(key, new Object());
+		assertNull(cache.get(key));
+		assertNull(cache.getNativeCache());
+	}
+
+	@Test
+	public void testCacheName() throws Exception {
+		String name = "bucket";
+		assertFalse(manager.getCacheNames().contains(name));
+		manager.getCache(name);
+		assertTrue(manager.getCacheNames().contains(name));
+	}
+}