Add for loop

Signed-off-by: Marcel Müller <neikos@neikos.email>

tests/file_tests.rs

@@ -2,6 +2,11 @@ use std::collections::HashMap;
 
 use nomo::Context;
 
+#[derive(serde::Serialize)]
+struct Info {
+    context: HashMap<String, serde_json::Value>,
+}
+
 #[test]
 fn check_cases() {
     insta::glob!("cases/*.nomo", |path| {
@@ -9,7 +14,6 @@ fn check_cases() {
         settings.set_snapshot_path("cases");
         settings.set_snapshot_suffix(path.file_stem().unwrap().display().to_string());
         settings.set_prepend_module_to_snapshot(false);
-        let _guard = settings.bind_to_scope();
 
         let input = std::fs::read_to_string(path).unwrap();
 
@@ -21,14 +25,20 @@ fn check_cases() {
             HashMap::new()
         };
 
+        settings.set_info(&Info {
+            context: map.clone(),
+        });
+
         let mut context = Context::new();
 
         for (k, v) in map {
-            context.insert(k, v);
+            context.try_insert(k, v).unwrap();
         }
 
         let parsed = nomo::parser::parse(input.into()).unwrap();
 
+        let _guard = settings.bind_to_scope();
+
         insta::assert_debug_snapshot!("1-parsed", parsed);
 
         let ast = match nomo::ast::parse(parsed.tokens()) {