Add more sensible error message

Signed-off-by: Matthias Beyer <matthias.beyer@atos.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/package/dag.rs b/src/package/dag.rs
index 5956c60..46c0dc8 100644
--- a/src/package/dag.rs
+++ b/src/package/dag.rs
@@ -649,8 +649,8 @@ mod tests {
         assert!(ps.iter().any(|p| *p.version() == pversion("1")));
 
         // Not in the tree:
-        assert!(!ps.iter().any(|p| *p.name() == pname("b")));
-        assert!(!ps.iter().any(|p| *p.version() == pversion("2")));
+        assert!(!ps.iter().any(|p| *p.name() == pname("b")), "'b' should not be in tree, but is: {:?}", ps);
+        assert!(!ps.iter().any(|p| *p.version() == pversion("2")), "'2' should not be in tree, but is: {:?}", ps);
     }
 
     // Test whether the dependency DAG is correctly build if a image is used, but not the one