Move value tests + smarter number formatting 🔢

1 files changed, 10 insertions, 1 deletions

diff --git a/src/geom/angle.rs b/src/geom/angle.rs
index 47541cb8..07471a02 100644
--- a/src/geom/angle.rs
+++ b/src/geom/angle.rs
@@ -56,7 +56,16 @@ impl Angle {
 
 impl Display for Angle {
     fn fmt(&self, f: &mut Formatter) -> fmt::Result {
-        write!(f, "{}{}", self.to_deg(), AngularUnit::Deg)
+        // Format with the unit that yields the shortest output, preferring
+        // degrees when tied.
+        let mut buf = ryu::Buffer::new();
+        let unit = [AngularUnit::Deg, AngularUnit::Rad]
+            .iter()
+            .copied()
+            .min_by_key(|&unit| buf.format(self.to_unit(unit)).len())
+            .unwrap();
+
+        write!(f, "{}{}", buf.format(self.to_unit(unit)), unit)
     }
 }