test messages return value

1 files changed, 7 insertions, 2 deletions

diff --git a/src/query.rs b/src/query.rs
index 8e8514c..2fbe031 100644
--- a/src/query.rs
+++ b/src/query.rs
@@ -1,3 +1,4 @@
+use std;
 use std::{
     ops,
     marker,
@@ -27,14 +28,18 @@ impl<'d> Query<'d> {
     }
 
     /// Filter messages according to the query and return
-    pub fn search_messages(self: &Self) -> Result<Messages>
+    pub fn search_messages(self: &Self) -> std::result::Result<Messages, ()>
     {
         let mut msgs = ptr::null_mut();
         unsafe {
             msgs = ffi::notmuch_query_search_messages(self.0);
         }
+        if !msgs.is_null() {
+            return Ok(Messages::new(msgs));
+        }else{
+            return Err(());
+        }
 
-        Ok(Messages::new(msgs))
     }
 }