use std::fmt::Debug;

use crate::testing::fixtures;
use crate::testing::fixtures::MakeTestGraph;

#[doc(hidden)]
#[macro_export]
macro_rules! graph_topology_clone_tests {
    ($T:ty) => {
        $crate::graph_topology_clone_tests!(@wrap $T,
            clone_handles_interchangeable,
        );
    };

    (@wrap $T:ty, $($name:ident),* $(,)?) => {
        $(
            #[test]
            fn $name() {
                $crate::testing::graph_topology_clone_testing::$name::<$T>();
            }
        )*
    };
}

/// Queries the clone using vertex and edge handles obtained from the original graph, and asserts
/// that the results are identical to querying the original with those same handles. This is only
/// meaningful because Vertex and Edge handles are not tied to a particular graph instance.
pub fn clone_handles_interchangeable<G: Clone + MakeTestGraph>()
where
    G::Vertex: Debug,
    G::Edge: Debug,
{
    let (graph, vertices, edges, _) = G::standard();
    let clone = graph.clone();
    fixtures::assert_isomorphic(&graph, &clone, &vertices, |v| v, &edges, |e| e);
}