LibJS: Throw TypeError if Instant.prototype.round() options is undefined

This is a normative change in the Temporal spec.

See: https://github.com/tc39/proposal-temporal/commit/943018f

1 files changed, 7 insertions, 0 deletions

diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.round.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.round.js
index 58d98a3f15..b6c74f20c4 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.round.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.round.js
@@ -30,6 +30,13 @@ describe("errors", () => {
         }).toThrowWithMessage(TypeError, "Not a Temporal.Instant");
     });
 
+    test("missing options object", () => {
+        expect(() => {
+            const instant = new Temporal.Instant(1n);
+            instant.round();
+        }).toThrowWithMessage(TypeError, "Required options object is missing or undefined");
+    });
+
     test("invalid rounding mode", () => {
         expect(() => {
             const instant = new Temporal.Instant(1n);