Add tests for action target ranges

1 files changed, 18 insertions, 1 deletions

diff --git a/crates/ra_assists/src/add_derive.rs b/crates/ra_assists/src/add_derive.rs
index de33b356c..ea9707631 100644
--- a/crates/ra_assists/src/add_derive.rs
+++ b/crates/ra_assists/src/add_derive.rs
@@ -39,7 +39,7 @@ fn derive_insertion_offset(nominal: &ast::NominalDef) -> Option<TextUnit> {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::helpers::check_assist;
+    use crate::helpers::{check_assist, check_assist_target};
 
     #[test]
     fn add_derive_new() {
@@ -81,4 +81,21 @@ struct Foo { a: i32, }
             ",
         );
     }
+
+    #[test]
+    fn add_derive_target() {
+        check_assist_target(
+            add_derive,
+            "
+struct SomeThingIrrelevant;
+/// `Foo` is a pretty important struct.
+/// It does stuff.
+struct Foo { a: i32<|>, }
+struct EvenMoreIrrelevant;
+            ",
+            "/// `Foo` is a pretty important struct.
+/// It does stuff.
+struct Foo { a: i32, }",
+        );
+    }
 }