feat(layout): impl Display for Position and Size (#1162)

src/layout/position.rs

@@ -1,4 +1,6 @@
 #![warn(missing_docs)]
+use std::fmt;
+
 use crate::layout::Rect;
 
 /// Position in the terminal
@@ -61,6 +63,12 @@ impl From<Rect> for Position {
     }
 }
 
+impl fmt::Display for Position {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "({}, {})", self.x, self.y)
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -94,4 +102,10 @@ mod tests {
         assert_eq!(position.x, 1);
         assert_eq!(position.y, 2);
     }
+
+    #[test]
+    fn to_string() {
+        let position = Position::new(1, 2);
+        assert_eq!(position.to_string(), "(1, 2)");
+    }
 }

src/layout/size.rs

@@ -1,4 +1,6 @@
 #![warn(missing_docs)]
+use std::fmt;
+
 use crate::prelude::*;
 
 /// A simple size struct
@@ -32,6 +34,12 @@ impl From<Rect> for Size {
     }
 }
 
+impl fmt::Display for Size {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}x{}", self.width, self.height)
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -56,4 +64,9 @@ mod tests {
         assert_eq!(size.width, 10);
         assert_eq!(size.height, 20);
     }
+
+    #[test]
+    fn display() {
+        assert_eq!(Size::new(10, 20).to_string(), "10x20");
+    }
 }