Improve error message on assertion when rules fail to parse

crates/solidity/outputs/cargo/tests/src/binding_rules.rs

@@ -0,0 +1,22 @@
+use std::path::PathBuf;
+
+use metaslang_graph_builder::ast::File;
+use slang_solidity::bindings;
+use slang_solidity::cst::KindTypes;
+
+#[test]
+fn test_binding_rules_parse_successfully() {
+    let binding_rules = bindings::get_binding_rules();
+    let graph_builder = File::<KindTypes>::from_str(binding_rules);
+
+    assert!(
+        graph_builder.is_ok(),
+        "Parsing binding rules failed:\n{}",
+        graph_builder
+            .err()
+            .map(|err| err
+                .display_pretty(&PathBuf::from("rules.msgb"), binding_rules)
+                .to_string())
+            .unwrap_or_default()
+    );
+}

crates/solidity/outputs/cargo/tests/src/lib.rs

@@ -1,9 +1,9 @@
 #![cfg(test)]
 
+mod binding_imports;
+mod binding_rules;
 mod bindings_assertions;
-mod bindings_imports;
 mod bindings_output;
-mod bindings_rules;
 mod cst_output;
 mod doc_examples;
 mod trivia;