update unit test

src/pre_training.rs

@@ -357,15 +357,15 @@ mod tests {
         let items = [pretrainset.clone(), trainset].concat();
         let average_recall = calculate_average_recall(&items);
         Data::from(pretrain(pretrainset, average_recall).unwrap().0)
-            .assert_approx_eq(&Data::from([0.908_688, 1.678_973, 4.216_837, 9.615_904]), 6)
+            .assert_approx_eq(&Data::from([0.908_688, 2.247_462, 4.216_837, 9.615_904]), 6)
     }
 
     #[test]
     fn test_smooth_and_fill() {
         let mut rating_stability = HashMap::from([(1, 0.4), (3, 2.3), (4, 10.9)]);
         let rating_count = HashMap::from([(1, 1), (2, 1), (3, 1), (4, 1)]);
         let actual = smooth_and_fill(&mut rating_stability, &rating_count).unwrap();
-        assert_eq!(actual, [0.4, 0.8052433, 2.3, 10.9,]);
+        assert_eq!(actual, [0.4, 1.1227008, 2.3, 10.9,]);
 
         let mut rating_stability = HashMap::from([(2, 0.35)]);
         let rating_count = HashMap::from([(2, 1)]);