java-tutorials/spring-boot-mvc/src/test/java/com/baeldung/caching/CacheManagerEvictIntegrationTest.java

package com.baeldung.caching;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.junit.Assert.assertThat;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import com.baeldung.springbootmvc.SpringBootMvcApplication;
import com.baeldung.springbootmvc.caching.CachingService;

@RunWith(SpringRunner.class)
@SpringBootTest(classes = {SpringBootMvcApplication.class, CachingService.class})
public class CacheManagerEvictIntegrationTest {
	
	@Autowired CachingService cachingService;
	
	@Before
	public void before() {
		cachingService.putToCache("first", "key1", "Baeldung");
		cachingService.putToCache("first", "key2", "Article");
		cachingService.putToCache("second", "key", "Article");
	}
	
	@Test
	public void givenFirstCache_whenSingleCacheValueEvictRequested_thenEmptyCacheValue() {
		cachingService.evictSingleCacheValue("first","key1");
		String key1 = cachingService.getFromCache("first", "key1");
		assertThat(key1, is(nullValue()));
	}
	
	@Test
	public void givenFirstCache_whenAllCacheValueEvictRequested_thenEmptyCache() {
		cachingService.evictAllCacheValues("first");
		String key1 = cachingService.getFromCache("first", "key1");
		String key2 = cachingService.getFromCache("first", "key2");
		assertThat(key1, is(nullValue()));
		assertThat(key2, is(nullValue()));
	}
	
	@Test
	public void givenAllCaches_whenAllCacheEvictRequested_thenEmptyAllCaches() {
		cachingService.evictAllCaches();
		String key1 = cachingService.getFromCache("first", "key1");
		assertThat(key1, is(nullValue()));
		
		String key = cachingService.getFromCache("second", "key");
		assertThat(key, is(nullValue()));
	}
}