Polish sample package names

spring-boot-samples/spring-boot-sample-cache/src/test/java/sample/cache/SampleCacheApplicationTests.java

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+/*
+ * Copyright 2012-2015 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 sample.cache;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.SpringApplicationConfiguration;
+import org.springframework.cache.Cache;
+import org.springframework.cache.CacheManager;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import sample.cache.Country;
+import sample.cache.CountryRepository;
+import sample.cache.SampleCacheApplication;
+import static org.hamcrest.CoreMatchers.nullValue;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.core.IsNull.notNullValue;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringApplicationConfiguration(classes = { SampleCacheApplication.class })
+public class SampleCacheApplicationTests {
+
+	@Autowired
+	private CacheManager cacheManager;
+
+	@Autowired
+	private CountryRepository countryRepository;
+
+	@Test
+	public void validateCache() {
+		Cache countries = this.cacheManager.getCache("countries");
+		assertThat(countries, is(notNullValue()));
+		countries.clear(); // Simple test assuming the cache is empty
+		assertThat(countries.get("BE"), is(nullValue()));
+		Country be = this.countryRepository.findByCode("BE");
+		assertThat((Country) countries.get("BE").get(), is(be));
+	}
+
+}