initial commit

exercises/03_ticket_v1/12_outro/tests/integration.rs

@@ -0,0 +1,49 @@
+use outro_02::Order;
+
+// Files inside the `tests` directory are only compiled when you run tests.
+// As a consequence, we don't need the `#[cfg(test)]` attribute for conditional compilation—it's
+// implied.
+
+#[test]
+fn test_order() {
+    let mut order = Order::new("Rusty Book".to_string(), 3, 2999);
+
+    assert_eq!(order.product_name(), "Rusty Book");
+    assert_eq!(order.quantity(), &3);
+    assert_eq!(order.unit_price(), &2999);
+    assert_eq!(order.total(), 8997);
+
+    order.set_product_name("Rust Book".to_string());
+    order.set_quantity(2);
+    order.set_unit_price(3999);
+
+    assert_eq!(order.product_name(), "Rust Book");
+    assert_eq!(order.quantity(), &2);
+    assert_eq!(order.unit_price(), &3999);
+    assert_eq!(order.total(), 7998);
+}
+
+// Validation tests
+#[test]
+#[should_panic]
+fn test_empty_product_name() {
+    Order::new("".to_string(), 3, 2999);
+}
+
+#[test]
+#[should_panic]
+fn test_long_product_name() {
+    Order::new("a".repeat(301), 3, 2999);
+}
+
+#[test]
+#[should_panic]
+fn test_zero_quantity() {
+    Order::new("Rust Book".to_string(), 0, 2999);
+}
+
+#[test]
+#[should_panic]
+fn test_zero_unit_price() {
+    Order::new("Rust Book".to_string(), 3, 0);
+}