chore: fix the new clippy lint in tests

src/emails.rs

@@ -1360,8 +1360,8 @@ mod test {
         assert!(res.is_ok());
         let res = res.unwrap();
         assert_eq!(res.message_id.unwrap(), "<111-222-333@email.example.com>");
-        assert!(res.cc.is_empty());
-        assert!(res.bcc.is_empty());
+        assert_eq!(res.cc, Vec::<String>::new());
+        assert_eq!(res.bcc, Vec::<String>::new());
         assert!(res.text.is_none());
 
         let email = r#"{
@@ -1386,8 +1386,8 @@ mod test {
         let res = serde_json::from_str::<Email>(email);
         assert!(res.is_ok());
         let res = res.unwrap();
-        assert!(!res.cc.is_empty());
-        assert!(!res.bcc.is_empty());
+        assert_ne!(res.cc, Vec::<String>::new());
+        assert_ne!(res.bcc, Vec::<String>::new());
         assert!(res.text.is_some());
     }
 
@@ -1517,15 +1517,15 @@ mod test {
             .share(&email.id, ShareEmailOptions::new())
             .await?;
         assert_eq!(shared.id, email.id);
-        assert!(!shared.url.is_empty());
+        assert_ne!(shared.url, "");
         std::thread::sleep(std::time::Duration::from_secs(1));
 
         let shared = resend
             .emails
             .share(&email.id, ShareEmailOptions::new().with_expires_in("10m"))
             .await?;
         assert_eq!(shared.id, email.id);
-        assert!(!shared.url.is_empty());
+        assert_ne!(shared.url, "");
         std::thread::sleep(std::time::Duration::from_secs(1));
 
         let shared = resend
@@ -1817,7 +1817,7 @@ mod test {
 
         let metrics: EmailMetrics = serde_json::from_str(json).unwrap();
 
-        assert!(metrics.dimensions.is_empty());
+        assert_eq!(metrics.dimensions, Vec::<Dimension>::new());
         assert!(metrics.data.is_none());
     }
 }

src/events.rs

@@ -958,8 +958,8 @@ mod test {
 
             let received = email_event.data.received.unwrap();
             assert_eq!(received.attachments.len(), 1);
-            assert!(received.cc.is_empty());
-            assert!(received.bcc.is_empty());
+            assert_eq!(received.cc, Vec::<String>::new());
+            assert_eq!(received.bcc, Vec::<String>::new());
             assert_eq!(received.received_for, vec!["forwarded@example.com"]);
         } else {
             panic!("Wrong parsing");

src/templates.rs

@@ -565,7 +565,7 @@ mod test {
         assert!(res.is_ok());
 
         let res = res.unwrap();
-        assert!(!res.variables.is_empty());
+        assert_ne!(res.variables, Vec::<crate::types::Variable>::new());
 
         let template = r#"{
   "object": "template",
@@ -587,6 +587,6 @@ mod test {
         assert!(res.is_ok());
 
         let res = res.unwrap();
-        assert!(res.variables.is_empty());
+        assert_eq!(res.variables, Vec::<crate::types::Variable>::new());
     }
 }