extra test for empty data

objectionary · Jan 9, 2023 · e5d43e0 · e5d43e0
1 parent a5aa939
commit e5d43e0
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/src/ops.rs b/src/ops.rs
@@ -124,6 +124,16 @@ impl Sodg {
     /// ```
     ///
     /// If vertex `v1` is absent, an `Err` will be returned.
+    ///
+    /// If there is no data, an empty `Hex` will be returned, for example:
+    ///
+    /// ```
+    /// use sodg::Hex;
+    /// use sodg::Sodg;
+    /// let mut g = Sodg::empty();
+    /// g.add(42).unwrap();
+    /// assert!(g.data(42).unwrap().is_empty());
+    /// ```
     pub fn data(&mut self, v: u32) -> Result<Hex> {
         let vtx = self
             .vertices