Fix tests

Author: mpv1989

src/test/java/com/arangodb/ArangoCollectionTest.java

@@ -676,7 +676,7 @@ public void deleteDocument() throws InterruptedException, ExecutionException {
 		final BaseDocument doc = new BaseDocument();
 		final DocumentCreateEntity<BaseDocument> createResult = db.collection(COLLECTION_NAME).insertDocument(doc, null)
 				.get();
-		db.collection(COLLECTION_NAME).deleteDocument(createResult.getKey(), null, null);
+		db.collection(COLLECTION_NAME).deleteDocument(createResult.getKey(), null, null).get();
 		final CompletableFuture<BaseDocument> f = db.collection(COLLECTION_NAME).getDocument(createResult.getKey(),
 			BaseDocument.class, null);
 		assertThat(f, is(notNullValue()));

src/test/java/com/arangodb/ArangoDBTest.java

@@ -120,7 +120,7 @@ public void getDatabases() throws InterruptedException, ExecutionException {
 			assertThat(dbs, hasItem("_system"));
 			assertThat(dbs, hasItem(BaseTest.TEST_DB));
 		} finally {
-			arangoDB.db(BaseTest.TEST_DB).drop();
+			arangoDB.db(BaseTest.TEST_DB).drop().get();
 		}
 	}
 
@@ -164,7 +164,7 @@ public void createUser() throws InterruptedException, ExecutionException {
 			});
 			f.get();
 		} finally {
-			arangoDB.deleteUser(USER);
+			arangoDB.deleteUser(USER).get();
 		}
 	}
 
@@ -510,7 +510,7 @@ public void setLogLevel() throws InterruptedException, ExecutionException {
 			f.get();
 		} finally {
 			entity.setAgency(LogLevelEntity.LogLevel.INFO);
-			arangoDB.setLogLevel(entity);
+			arangoDB.setLogLevel(entity).get();
 		}
 	}
 }

src/test/java/com/arangodb/ArangoDatabaseTest.java

@@ -558,7 +558,7 @@ public void changeQueryCache() throws InterruptedException, ExecutionException {
 		} finally {
 			final QueryCachePropertiesEntity properties = new QueryCachePropertiesEntity();
 			properties.setMode(CacheMode.off);
-			db.setQueryCacheProperties(properties);
+			db.setQueryCacheProperties(properties).get();
 		}
 	}