Increase exchange rate cache 4->12h

src/main/java/com/danielbohry/stocks/config/CacheConfig.java

@@ -16,7 +16,7 @@ public class CacheConfig {
     @Bean
     public CacheManager cacheManager() {
         CaffeineCacheManager cacheManager = new CaffeineCacheManager("exchangeRates");
-        cacheManager.setCaffeine(Caffeine.newBuilder().expireAfterWrite(4, TimeUnit.HOURS));
+        cacheManager.setCaffeine(Caffeine.newBuilder().expireAfterWrite(12, TimeUnit.HOURS));
         return cacheManager;
     }
 

src/test/resources/application.yml

@@ -6,8 +6,8 @@ clients:
     url: ${provider:http://mock.com}
     key: ${key:fake-key}
   exchange:
-    url: ${exchange_provider:}
-    key: ${exchange_key:}
+    url: ${exchange_provider:http://mock.com}
+    key: ${exchange_key:fake-key}
 
 spring:
   data: