From f16c64d01e0c9ac891bded2beccff3be73cc567c Mon Sep 17 00:00:00 2001
From: "Rong Sen Ng (motss)" <wes.ngrongsen@gmail.com>
Date: Sat, 18 Sep 2021 20:23:57 +0800
Subject: [PATCH] test: add tests for toDateString

---
 src/helpers/to-date-string.ts            |  9 ++-------
 src/tests/helpers/to-date-string.test.ts | 13 +++++++++++++
 2 files changed, 15 insertions(+), 7 deletions(-)
 create mode 100644 src/tests/helpers/to-date-string.test.ts

diff --git a/src/helpers/to-date-string.ts b/src/helpers/to-date-string.ts
index 73259d2a..dd55df37 100644
--- a/src/helpers/to-date-string.ts
+++ b/src/helpers/to-date-string.ts
@@ -1,8 +1,3 @@
 export function toDateString(date: Date): string {
-  try {
-    const dateString = date.toJSON();
-    return dateString == null ? '' : dateString.replace(/^(.+)T.+/i, '$1');
-  } catch {
-    return '';
-  }
-}
\ No newline at end of file
+  return date.toISOString().replace(/^(.+)T.+/i, '$1');
+}
diff --git a/src/tests/helpers/to-date-string.test.ts b/src/tests/helpers/to-date-string.test.ts
new file mode 100644
index 00000000..fb486344
--- /dev/null
+++ b/src/tests/helpers/to-date-string.test.ts
@@ -0,0 +1,13 @@
+import { expect } from '@open-wc/testing';
+
+import { toDateString } from '../../helpers/to-date-string';
+
+describe(toDateString.name, () => {
+  it('returns date string', () => {
+    const testDateStr = '2020-02-02';
+
+    const result = toDateString(new Date(testDateStr));
+
+    expect(result).equal(testDateStr);
+  });
+});