style: fix formatting and clippy issues

src/buffer.rs

@@ -520,12 +520,8 @@ mod tests {
 
     #[test]
     fn buffer_with_lines() {
-        let buffer = Buffer::with_lines(vec![
+        let buffer =
-            "┌────────┐",
+            Buffer::with_lines(vec!["┌────────┐", "│コンピュ│", "│ーa 上で│", "└────────┘"]);
-            "│コンピュ│",
-            "│ーa 上で│",
-            "└────────┘",
-        ]);
         assert_eq!(buffer.area.x, 0);
         assert_eq!(buffer.area.y, 0);
         assert_eq!(buffer.area.width, 10);
@@ -619,11 +615,7 @@ mod tests {
         let diff = prev.diff(&next);
         assert_eq!(
             diff,
-            vec![
+            vec![(1, 0, &cell("─")), (2, 0, &cell("称")), (4, 0, &cell("号")),]
-                (1, 0, &cell("─")),
-                (2, 0, &cell("称")),
-                (4, 0, &cell("号")),
-            ]
         );
     }
 

src/widgets/table.rs

@@ -130,13 +130,14 @@ where
     }
 
     pub fn widths(mut self, widths: &'a [Constraint]) -> Table<'a, T, H, I, D, R> {
+        let between_0_and_100 = |&w| {
+            match w {
+                Constraint::Percentage(p) => p <= 100,
+                _ => true,
+            }
+        };
         assert!(
-            widths.iter().all(|w| {
+            widths.iter().all(between_0_and_100),
-                match w {
-                    Constraint::Percentage(p) => *p <= 100,
-                    _ => true,
-                }
-            }),
             "Percentages should be between 0 and 100 inclusively."
         );
         self.widths = widths;
@@ -270,5 +271,4 @@ mod tests {
         Table::new([""].iter(), vec![Row::Data([""].iter())].into_iter())
             .widths(&[Constraint::Percentage(110)]);
     }
-
 }

tests/paragraph.rs

@@ -82,8 +82,7 @@ fn paragraph_render_double_width() {
     let backend = TestBackend::new(10, 10);
     let mut terminal = Terminal::new(backend).unwrap();
 
-    let s =
+    let s = "コンピュータ上で文字を扱う場合、典型的には文字による通信を行う場合にその両端点では、";
-        "コンピュータ上で文字を扱う場合、典型的には文字による通信を行う場合にその両端点では、";
     terminal
         .draw(|mut f| {
             let size = f.size();