add unknown parameter test

compiler/src/macro_/format.rs

@@ -1,4 +1,4 @@
-//! Evaluates a macro in a compiled Leo program.
+//! Evaluates a formatted string in a compiled Leo program.
 
 use crate::{errors::MacroError, program::ConstrainedProgram, GroupType};
 use leo_types::FormattedString;

compiler/tests/macros/mod.rs

@@ -32,6 +32,14 @@ fn test_print_parameter_many() {
     let _output = get_output(program);
 }
 
+#[test]
+fn test_print_parameter_fail_unknown() {
+    let bytes = include_bytes!("print_parameter_fail_unknown.leo");
+    let program = parse_program(bytes).unwrap();
+
+    let _err = get_error(program);
+}
+
 #[test]
 fn test_print_parameter_fail_empty() {
     let bytes = include_bytes!("print_parameter_fail_empty.leo");

compiler/tests/macros/print_parameter_fail_unknown.leo

@@ -0,0 +1,3 @@
+function main() {
+    print!("{}", a);
+}