From 4b7f8b49cc07a89c093475f284ef112f26a8529f Mon Sep 17 00:00:00 2001
From: Sarah GHP <sarah.groff.palermo@gmail.com>
Date: Tue, 16 Nov 2021 20:43:07 +0100
Subject: [PATCH] Adds invalid constuction options

---
 .../prototype/since/options-invalid.js        | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 test/built-ins/Temporal/PlainYearMonth/prototype/since/options-invalid.js

diff --git a/test/built-ins/Temporal/PlainYearMonth/prototype/since/options-invalid.js b/test/built-ins/Temporal/PlainYearMonth/prototype/since/options-invalid.js
new file mode 100644
index 0000000000..24e59e3b3b
--- /dev/null
+++ b/test/built-ins/Temporal/PlainYearMonth/prototype/since/options-invalid.js
@@ -0,0 +1,22 @@
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plainyearmonth.prototype.since
+description: Verify that invalid options are handled correctly.
+features: [Temporal]
+---*/
+
+const feb20 = new Temporal.PlainYearMonth(2020, 2);
+const feb21 = new Temporal.PlainYearMonth(2021, 2);
+
+[
+  null,
+  1,
+  'hello',
+  true,
+  Symbol('foo'),
+  1n
+].forEach((badOption) =>
+  assert.throws(TypeError, () => feb21.since(feb20, badOption), `${String(badOption)} throws TypeError`)
+);