Fix application of modifications during 'ta add'

cli/src/invocation/cmd/add.rs

@@ -1,18 +1,24 @@
 use crate::argparse::{DescriptionMod, Modification};
+use crate::invocation::apply_modification;
 use taskchampion::{Replica, Status};
 use termcolor::WriteColor;
 
 pub(crate) fn execute<W: WriteColor>(
     w: &mut W,
     replica: &mut Replica,
-    modification: Modification,
+    mut modification: Modification,
 ) -> Result<(), crate::Error> {
+    // extract the description from the modification to handle it specially
     let description = match modification.description {
         DescriptionMod::Set(ref s) => s.clone(),
         _ => "(no description)".to_owned(),
     };
-    let t = replica.new_task(Status::Pending, description).unwrap();
-    writeln!(w, "added task {}", t.get_uuid())?;
+    modification.description = DescriptionMod::None;
+
+    let task = replica.new_task(Status::Pending, description).unwrap();
+    let mut task = task.into_mut(replica);
+    apply_modification(&mut task, &modification)?;
+    writeln!(w, "added task {}", task.get_uuid())?;
     Ok(())
 }
 
@@ -43,4 +49,28 @@ mod test {
 
         assert_eq!(w.into_string(), format!("added task {}\n", task.get_uuid()));
     }
+
+    #[test]
+    fn test_add_with_tags() {
+        let mut w = test_writer();
+        let mut replica = test_replica();
+        let modification = Modification {
+            description: DescriptionMod::Set(s!("my description")),
+            add_tags: vec![tag!("tag1")].drain(..).collect(),
+            ..Default::default()
+        };
+        execute(&mut w, &mut replica, modification).unwrap();
+
+        // check that the task appeared..
+        let working_set = replica.working_set().unwrap();
+        let task = replica
+            .get_task(working_set.by_index(1).unwrap())
+            .unwrap()
+            .unwrap();
+        assert_eq!(task.get_description(), "my description");
+        assert_eq!(task.get_status(), Status::Pending);
+        assert!(task.has_tag(&tag!("tag1")));
+
+        assert_eq!(w.into_string(), format!("added task {}\n", task.get_uuid()));
+    }
 }