Add should_panic samples and tests

Author: daxpedda

crates/futures/tests/tests.rs

@@ -155,3 +155,15 @@ async fn can_use_an_async_iterable_as_stream() {
     assert_eq!(stream.next().await, Some(Ok(JsValue::from(24))));
     assert_eq!(stream.next().await, None);
 }
+
+#[wasm_bindgen_test]
+#[should_panic]
+async fn should_panic() {
+    panic!()
+}
+
+#[wasm_bindgen_test]
+#[should_panic = "error message"]
+async fn should_panic() {
+    panic!("error message")
+}

crates/test/sample/tests/common/mod.rs

@@ -51,3 +51,15 @@ fn panic_before_result_fail() -> Result<(), Box<dyn std::error::Error>> {
     #[allow(unreachable_code)]
     Err("failed via Result".into())
 }
+
+#[wasm_bindgen_test]
+#[should_panic]
+fn should_panic() {
+    panic!()
+}
+
+#[wasm_bindgen_test]
+#[should_panic = "error message"]
+fn should_panic() {
+    panic!("error message")
+}

tests/wasm/should_panic.rs

@@ -0,0 +1,11 @@
+#[wasm_bindgen_test]
+#[should_panic]
+fn should_panic() {
+    panic!()
+}
+
+#[wasm_bindgen_test]
+#[should_panic = "error message"]
+fn should_panic() {
+    panic!("error message")
+}