Create new tuple expression types

rust_compiler/libs/parser/src/test/mod.rs

@@ -112,7 +112,7 @@ fn test_function_invocation() -> Result<()> {
 #[test]
 fn test_priority_expression() -> Result<()> {
     let input = r#"
-            let x = (4);
+            let x = (4 + 3);
         "#;
 
     let tokenizer = Tokenizer::from(input);
@@ -120,7 +120,7 @@ fn test_priority_expression() -> Result<()> {
 
     let expression = parser.parse()?.unwrap();
 
-    assert_eq!("(let x = 4)", expression.to_string());
+    assert_eq!("(let x = ((4 + 3)))", expression.to_string());
 
     Ok(())
 }
@@ -137,7 +137,7 @@ fn test_binary_expression() -> Result<()> {
     assert_eq!("(((45 * 2) - (15 / 5)) + (5 ** 2))", expr.to_string());
 
     let expr = parser!("(5 - 2) * 10;").parse()?.unwrap();
-    assert_eq!("((5 - 2) * 10)", expr.to_string());
+    assert_eq!("(((5 - 2)) * 10)", expr.to_string());
 
     Ok(())
 }
@@ -170,7 +170,7 @@ fn test_ternary_expression() -> Result<()> {
 fn test_complex_binary_with_ternary() -> Result<()> {
     let expr = parser!("let i = (x ? 1 : 3) * 2;").parse()?.unwrap();
 
-    assert_eq!("(let i = ((x ? 1 : 3) * 2))", expr.to_string());
+    assert_eq!("(let i = (((x ? 1 : 3)) * 2))", expr.to_string());
 
     Ok(())
 }
@@ -191,3 +191,12 @@ fn test_nested_ternary_right_associativity() -> Result<()> {
     assert_eq!("(let i = (a ? b : (c ? d : e)))", expr.to_string());
     Ok(())
 }
+
+#[test]
+fn test_tuple_declaration() -> Result<()> {
+    let expr = parser!("let (x, _) = (1, 2);").parse()?.unwrap();
+
+    assert_eq!("(let (x, _) = (1, 2))", expr.to_string());
+
+    Ok(())
+}