diff --git a/src/protocol/tests/parser_validation.rs b/src/protocol/tests/parser_validation.rs
new file mode 100644
index 0000000000000000000000000000000000000000..741203c921e0b370a23cc3cb94ebd22a5f41cd31
--- /dev/null
+++ b/src/protocol/tests/parser_validation.rs
@@ -0,0 +1,33 @@
+/// parser_validation.rs
+///
+/// Simple tests for the validation phase
+/// TODO: If semicolon behind struct definition: should be fine...
+
+use super::*;
+
+#[test]
+fn test_correct_struct_instance() {
+    Tester::new_single_source_expect_ok(
+        "single field",
+        "
+        struct Foo { int a }
+        Foo bar(int arg) { return Foo{ a: arg }; }
+        "
+    );
+
+    Tester::new_single_source_expect_ok(
+        "multiple fields",
+        "
+        struct Foo { int a, int b }
+        Foo bar(int arg) { return Foo{ a: arg, b: arg }; }
+        "
+    );
+
+    Tester::new_single_source_expect_ok(
+        "single field, explicit polymorph",
+        "
+        struct Foo<T>{ T field }
+        Foo<int> bar(int arg) { return Foo<int>{ field: arg }; }
+        "
+    );
+}
\ No newline at end of file