diff --git a/src/protocol/tests/parser_literals.rs b/src/protocol/tests/parser_literals.rs
index 29ab95774c778f867b8ecbc46072e01ff5e39f90..de343928abfb66f8f8b6cc0399badfa476c205b4 100644
--- a/src/protocol/tests/parser_literals.rs
+++ b/src/protocol/tests/parser_literals.rs
@@ -67,4 +67,58 @@ fn test_string_literals() {
     Tester::new_single_source_expect_err("non-ASCII string", "
         func test() -> string { return \"💧\"; }
     ").error(|e| { e.assert_msg_has(0, "non-ASCII character in string literal"); });
+}
+
+#[test]
+fn test_tuple_literals() {
+    Tester::new_single_source_expect_ok("zero tuples", "
+        func test() -> () {
+            // Looks like lisp :)
+            auto t1 = ();
+            () t2 = ();
+            auto t3 = (());
+            () t4 = (());
+            auto t5 = ((((()))));
+            ((())) t6 = ((((()))));
+
+            return ();
+        }
+    ").for_function("test", |f| { f
+        .for_variable("t1", |v| { v.assert_concrete_type("()"); })
+        .for_variable("t2", |v| { v.assert_concrete_type("()"); })
+        .for_variable("t3", |v| { v.assert_concrete_type("()"); })
+        .for_variable("t4", |v| { v.assert_concrete_type("()"); })
+        .for_variable("t5", |v| { v.assert_concrete_type("()"); })
+        .for_variable("t6", |v| { v.assert_concrete_type("()"); });
+    });
+
+    // All one-tuples (T) are transformed into T to prevent ambiguity
+    Tester::new_single_source_expect_ok("one tuples", "
+        func test() -> (u32) {
+            auto a = (0);
+            (s32) b = (1);
+            ((((s32)))) c = ((2));
+        }
+    ").for_function("test", |f| { f
+        .for_variable("a", |v| { v.assert_concrete_type("s32"); })
+        .for_variable("b", |v| { v.assert_concrete_type("s32"); })
+        .for_variable("c", |v| { v.assert_concrete_type("s32"); });
+    });
+
+    Tester::new_single_source_expect_ok("actual tuples", "
+        func test() -> (u32, u32) {
+            (u8,u16,u32) a = (0, 1, 2);
+            auto b = a;
+            auto c = (3, 4, 5);
+            ((auto, auto)) d = (a, c);
+            auto e = (\"hello\", 'c', 5 + 2);
+            return ((0), (1));
+        }
+    ").for_function("test", |f| { f
+        .for_variable("a", |v| { v.assert_concrete_type("(u8,u16,u32)"); })
+        .for_variable("b", |v| { v.assert_concrete_type("(u8,u16,u32)"); })
+        .for_variable("c", |v| { v.assert_concrete_type("(s32,s32,s32)"); })
+        .for_variable("d", |v| { v.assert_concrete_type("((u8,u16,u32),(s32,s32,s32))"); })
+        .for_variable("e", |v| { v.assert_concrete_type("(string,char,s32)"); });
+    });
 }
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