diff --git a/src/graph.rs b/src/graph.rs
index c31b748ca..d48da2175 100644
--- a/src/graph.rs
+++ b/src/graph.rs
@@ -1,3 +1,4 @@
+mod graph_edge;
 mod graph_element;
 mod graph_node;
 
diff --git a/src/graph/graph_edge.rs b/src/graph/graph_edge.rs
new file mode 100644
index 000000000..18c7ff496
--- /dev/null
+++ b/src/graph/graph_edge.rs
@@ -0,0 +1,12 @@
+#[allow(dead_code)]
+pub(crate) struct GraphEdge {}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn new() {
+        let _edge = GraphEdge {};
+    }
+}