fix test cases warning

Author: up9cloud

tests/testsuite/file_jsonc.rs

@@ -49,7 +49,7 @@ fn test_file() {
     let s: Settings = c.try_deserialize().unwrap();
 
     assert!(s.debug.approx_eq_ulps(&1.0, 2));
-    assert_eq!(s.production, Some("false".to_string()));
+    assert_eq!(s.production, Some("false".to_owned()));
     assert_eq!(s.place.name, "Torre di Pisa");
     assert!(s.place.longitude.approx_eq_ulps(&43.722_498_5, 2));
     assert!(s.place.latitude.approx_eq_ulps(&10.397_052_2, 2));
@@ -58,23 +58,23 @@ fn test_file() {
     assert_eq!(s.place.rating, Some(4.5));
     assert_eq!(s.place.telephone, None);
     assert_eq!(s.elements.len(), 10);
-    assert_eq!(s.elements[3], "4".to_string());
+    assert_eq!(s.elements[3], "4".to_owned());
     if cfg!(feature = "preserve_order") {
         assert_eq!(
             s.place
                 .creator
                 .into_iter()
                 .collect::<Vec<(String, Value)>>(),
             vec![
-                ("name".to_string(), "John Smith".into()),
+                ("name".to_owned(), "John Smith".into()),
                 ("username".into(), "jsmith".into()),
                 ("email".into(), "jsmith@localhost".into()),
             ]
         );
     } else {
         assert_eq!(
             s.place.creator["name"].clone().into_string().unwrap(),
-            "John Smith".to_string()
+            "John Smith".to_owned()
         );
     }
 }
@@ -118,17 +118,9 @@ fn test_override_uppercase_value_for_struct() {
         .unwrap();
 
     let settings = cfg.try_deserialize::<OverrideSettings>();
-
-    match settings {
-        Ok(v) => {
-            // this assertion will ensure that the map has only lowercase keys
-            assert_eq!(v.FOO, "FOO should be overridden");
-            assert_eq!(v.foo, "I HAVE BEEN OVERRIDDEN_WITH_UPPER_CASE".to_string());
-        }
-        Err(e) => {
-            panic!("{}", e);
-        }
-    }
+    // this assertion will ensure that the map has only lowercase keys
+    assert_eq!(v.FOO, "FOO should be overridden");
+    assert_eq!(v.foo, "I HAVE BEEN OVERRIDDEN_WITH_UPPER_CASE".to_owned());
 }
 
 #[test]
@@ -142,8 +134,7 @@ fn test_override_lowercase_value_for_struct() {
         .unwrap();
 
     let values: OverrideSettings = cfg.try_deserialize().unwrap();
-    assert_eq!(values.foo, "I have been overridden_with_lower_case".to_string()
-    );
+    assert_eq!(values.foo, "I have been overridden_with_lower_case".to_owned());
 }
 
 #[derive(Debug, Deserialize, PartialEq)]