feat(std/testing): Allow non-void promises in assertThrowsAsync (#6052)

1 files changed, 15 insertions, 0 deletions

diff --git a/std/testing/asserts_test.ts b/std/testing/asserts_test.ts
index c333d41da..3969cd661 100644
--- a/std/testing/asserts_test.ts
+++ b/std/testing/asserts_test.ts
@@ -9,6 +9,7 @@ import {
   assertEquals,
   assertStrictEq,
   assertThrows,
+  assertThrowsAsync,
   AssertionError,
   equal,
   fail,
@@ -245,6 +246,20 @@ test("testingAssertFailWithWrongErrorClass", function (): void {
   );
 });
 
+test("testingAssertThrowsWithReturnType", () => {
+  assertThrows(() => {
+    throw new Error();
+    return "a string";
+  });
+});
+
+test("testingAssertThrowsAsyncWithReturnType", () => {
+  assertThrowsAsync(() => {
+    throw new Error();
+    return Promise.resolve("a Promise<string>");
+  });
+});
+
 const createHeader = (): string[] => [
   "",
   "",