Added items

mist-test/src/items/struct_test.mist

@@ -0,0 +1,46 @@
+pub module struct_test;
+
+struct Point {
+    x i32,
+    y i32,
+}
+
+pub fn void test_struct_create_access() {
+    let p = Point { x: 10, y: 20 };
+    assert_eq!(p.x, 10);
+    assert_eq!(p.y, 20);
+}
+
+pub fn void test_struct_mut_field() {
+    let mut p = Point { x: 1, y: 2 };
+    p.x = 100;
+    assert_eq!(p.x, 100);
+}
+
+pub fn void test_struct_destructure() {
+    let p = Point { x: 3, y: 4 };
+    let Point { x, y } = p;
+    assert_eq!(x, 3);
+    assert_eq!(y, 4);
+}
+
+struct Line {
+    start Point,
+    end Point,
+}
+
+pub fn void test_struct_nested() {
+    let l = Line {
+        start: Point { x: 0, y: 0 },
+        end: Point { x: 5, y: 10 },
+    };
+    assert_eq!(l.start.x, 0);
+    assert_eq!(l.end.y, 10);
+}
+
+pub fn void run_tests() {
+    test_struct_create_access();
+    test_struct_mut_field();
+    test_struct_destructure();
+    test_struct_nested();
+}