Use multi line debug formatting in asserts

examples/querying.rs

@@ -40,8 +40,15 @@ fn main() {
     // get_by_name won't panic here since we only find the button in the group
     group.get_by_name("Duplicate");
 
-    let btn_in_parent = harness.get_all_by_name("Duplicate").next_back().expect("No buttons found");
-    assert_eq!(btn_in_parent.parent_id().expect("No parent id"), group.id(), "Button is not in the group");
+    let btn_in_parent = harness
+        .get_all_by_name("Duplicate")
+        .next_back()
+        .expect("No buttons found");
+    assert_eq!(
+        btn_in_parent.parent_id().expect("No parent id"),
+        group.id(),
+        "Button is not in the group"
+    );
 
     // query_by and get_by functions will panic if more than one node is found
     // harness.get_by_role(Role::Button); // This will panic!

src/query.rs

@@ -72,7 +72,7 @@ fn get_all<'tree>(
     let mut iter = query_all(node, by).peekable();
     assert!(
         iter.peek().is_some(),
-        "No nodes found matching the query: {debug_query:?}\n\nOn node: {node:?}"
+        "No nodes found matching the query:\n{debug_query:#?}\n\nOn node:\n{node:#?}"
     );
     iter
 }
@@ -87,7 +87,7 @@ fn query<'tree>(node: Node<'tree>, by: By<'tree>) -> Option<Node<'tree>> {
     if let Some(second) = iter.next() {
         let first = result?;
         panic!(
-            "Found two or more nodes matching the query: \n{debug_query:?}\n\nFirst node: {first:?}\nSecond node: {second:?}\
+            "Found two or more nodes matching the query: \n{debug_query:#?}\n\nFirst node:\n{first:#?}\n\nSecond node: {second:#?}\
                 \n\nIf you were expecting multiple nodes, use query_all instead of query."
         );
     }
@@ -102,7 +102,7 @@ fn get<'tree>(node: Node<'tree>, by: By<'tree>) -> Node<'tree> {
     if let Some(node) = option {
         node
     } else {
-        panic!("No nodes found matching the query: {debug_query:?}\n\nOn node: {node:?}");
+        panic!("No nodes found matching the query:\n{debug_query:#?}\n\nOn node:\n{node:#?}");
     }
 }