update gitignore

.gitignore

@@ -5,4 +5,5 @@ Cargo.lock
 /rust.code-workspace
 scratch.txt
 /scratch*.txt
-/default.profraw
+/default.profraw
+**/*~

src/color/colors.rs

@@ -1037,6 +1037,18 @@ pub mod iter {
             current
         }
     }
+
+    #[cfg(test)]
+    mod tests {
+        use super::*;
+        use pretty_assertions::assert_eq;
+
+        #[test]
+        fn default() {
+            let mut iter: ColorsIter = Default::default();
+            assert_eq!(iter.next(), Some(Colors::AliceBlue));
+        }
+    }
 }
 
 #[cfg(test)]