assert_eq!(v.len(), 0)->assert!(v.is_empty())

Author: hotate29

atcoder-problems-backend/sql-client/tests/test_problems_submissions.rs

@@ -91,7 +91,7 @@ async fn test_problem_info_aggrefator() {
         pool.update_submissions(&ignored_submission).await.unwrap();
         pool.update_submissions_of_problems().await.unwrap();
         let first = get_from(&pool, Table::First).await;
-        assert_eq!(first.len(), 0);
+        assert!(first.is_empty());
 
         pool.update_submissions(&submissions1).await.unwrap();
         pool.update_submissions_of_problems().await.unwrap();

atcoder-problems-backend/sql-client/tests/test_submission_client.rs

@@ -33,11 +33,11 @@ async fn test_submission_client() {
 
     let request = SubmissionRequest::UserAll { user_id: "user3" };
     let submissions = pool.get_submissions(request).await.unwrap();
-    assert_eq!(submissions.len(), 0);
+    assert!(submissions.is_empty());
 
     let request = SubmissionRequest::RecentAccepted { count: 0 };
     let submissions = pool.get_submissions(request).await.unwrap();
-    assert_eq!(submissions.len(), 0);
+    assert!(submissions.is_empty());
 
     let request = SubmissionRequest::RecentAccepted { count: 1 };
     let submissions = pool.get_submissions(request).await.unwrap();
@@ -96,7 +96,7 @@ async fn test_submission_client() {
         count: 1000,
     };
     let submissions = pool.get_submissions(request).await.unwrap();
-    assert_eq!(submissions.len(), 0);
+    assert!(submissions.is_empty());
 
     let request = SubmissionRequest::UsersAccepted {
         user_ids: &["user1", "user2"],
@@ -160,7 +160,7 @@ async fn test_update_submissions() {
         })
         .await
         .unwrap();
-    assert_eq!(submissions.len(), 0);
+    assert!(submissions.is_empty());
 
     pool.update_submissions(&[Submission {
         id: 0,
@@ -179,7 +179,7 @@ async fn test_update_submissions() {
         })
         .await
         .unwrap();
-    assert_eq!(submissions.len(), 0);
+    assert!(submissions.is_empty());
 
     let submissions = pool
         .get_submissions(SubmissionRequest::UserAll {

atcoder-problems-backend/tests/test_server_e2e_ac_ranking.rs

@@ -63,7 +63,7 @@ async fn test_ac_ranking() {
     let response = test::call_service(&app, request).await;
     assert_eq!(response.status(), StatusCode::OK);
     let response: Value = test::read_body_json(response).await;
-    assert_eq!(response.as_array().unwrap().len(), 0);
+    assert!(response.as_array().unwrap().is_empty());
 
     let request = test::TestRequest::get()
         .uri("/atcoder-api/v3/ac_ranking?from=0&to=2000")

atcoder-problems-backend/tests/test_server_e2e_virtual_contest.rs

@@ -327,7 +327,7 @@ async fn test_virtual_contest_visibility() {
     let response = test::call_service(&app, request).await;
     assert_eq!(response.status(), StatusCode::OK);
     let response: Value = test::read_body_json(response).await;
-    assert_eq!(response.as_array().unwrap().len(), 0);
+    assert!(response.as_array().unwrap().is_empty());
 
     let request = test::TestRequest::post()
         .uri("/internal-api/contest/create")
@@ -352,7 +352,7 @@ async fn test_virtual_contest_visibility() {
     let response = test::call_service(&app, request).await;
     assert_eq!(response.status(), StatusCode::OK);
     let response: Value = test::read_body_json(response).await;
-    assert_eq!(response.as_array().unwrap().len(), 0);
+    assert!(response.as_array().unwrap().is_empty());
 
     let request = test::TestRequest::post()
         .uri("/internal-api/contest/update")