1 files changed, 33 insertions, 2 deletions

diff --git a/rust/src/web.rs b/rust/src/web.rs
index 62dea22..af27eda 100644
--- a/rust/src/web.rs
+++ b/rust/src/web.rs
@@ -387,20 +387,51 @@ mod app_tests {
     }
 
     #[test]
-    async fn client_generates_variables_at_level_2() {
+    async fn client_generates_ascii_variables_at_level_2() {
         let mut client = client();
         client.grade = 2;
 
         let (input, _) = client.generate_expr();
 
         let parsed = parse(&input);
-        match parsed[..] {
+        match &parsed[..] {
+            [Value::Sym(name)] => {
+                println!("{}", name);
+                assert!(name.chars().all(|c| c.is_ascii_alphanumeric()));
+            }
+            _ => panic!("Expected symbol, got {:?}", parsed),
+        }
+    }
+
+    #[test]
+    async fn client_generates_unicode_variables_at_level_3() {
+        let mut client = client();
+        client.grade = 3;
+
+        let (input, _) = client.generate_expr();
+
+        let parsed = parse(&input);
+        match &parsed[..] {
             [Value::Sym(_)] => (),
             _ => panic!("Expected symbol, got {:?}", parsed),
         }
     }
 
     #[test]
+    async fn client_generates_binary_application_at_level_4() {
+        let mut client = client();
+        client.grade = 4;
+
+        let (input, _) = client.generate_expr();
+
+        let parsed = parse(&input);
+        match &parsed[..] {
+            [Value::App(_, _)] => (),
+            _ => panic!("Expected symbol, got {:?}", parsed),
+        }
+    }
+
+    #[test]
     async fn client_increases_grade_on_successful_test() {
         let mut client = client();
         let expected = "1".to_string();