3 files changed, 26 insertions, 0 deletions
diff --git a/tests/specs/run/rejection_handled/__test__.jsonc b/tests/specs/run/rejection_handled/__test__.jsonc
new file mode 100644
index 000000000..7565a7dd1
--- /dev/null
+++ b/tests/specs/run/rejection_handled/__test__.jsonc
@@ -0,0 +1,4 @@
+{
+  "args": "run --check rejection_handled.ts",
+  "output": "rejection_handled.out"
+}
diff --git a/tests/specs/run/rejection_handled/rejection_handled.out b/tests/specs/run/rejection_handled/rejection_handled.out
new file mode 100644
index 000000000..5c06fcd2b
--- /dev/null
+++ b/tests/specs/run/rejection_handled/rejection_handled.out
@@ -0,0 +1,5 @@
+[WILDCARD]
+unhandledrejection 1 Promise { <rejected> 1 }
+Added catch handler to the promise
+rejectionhandled 1 Promise { <rejected> 1 }
+Success
diff --git a/tests/specs/run/rejection_handled/rejection_handled.ts b/tests/specs/run/rejection_handled/rejection_handled.ts
new file mode 100644
index 000000000..8822203f1
--- /dev/null
+++ b/tests/specs/run/rejection_handled/rejection_handled.ts
@@ -0,0 +1,17 @@
+globalThis.addEventListener("unhandledrejection", (event) => {
+  console.log("unhandledrejection", event.reason, event.promise);
+  event.preventDefault();
+});
+
+globalThis.addEventListener("rejectionhandled", (event) => {
+  console.log("rejectionhandled", event.reason, event.promise);
+});
+
+const a = Promise.reject(1);
+setTimeout(async () => {
+  a.catch(() => console.log("Added catch handler to the promise"));
+}, 10);
+
+setTimeout(() => {
+  console.log("Success");
+}, 1000);