1 files changed, 17 insertions, 0 deletions
diff --git a/spec/frontend/lib/utils/datetime/date_calculation_utility_spec.js b/spec/frontend/lib/utils/datetime/date_calculation_utility_spec.js
new file mode 100644
index 00000000000..47bb512cbb5
--- /dev/null
+++ b/spec/frontend/lib/utils/datetime/date_calculation_utility_spec.js
@@ -0,0 +1,17 @@
+import { newDateAsLocaleTime } from '~/lib/utils/datetime/date_calculation_utility';
+
+describe('newDateAsLocaleTime', () => {
+  it.each`
+    string                        | expected
+    ${'2022-03-22'}               | ${new Date('2022-03-22T00:00:00.000Z')}
+    ${'2022-03-22T00:00:00.000Z'} | ${new Date('2022-03-22T00:00:00.000Z')}
+    ${2022}                       | ${null}
+    ${[]}                         | ${null}
+    ${{}}                         | ${null}
+    ${true}                       | ${null}
+    ${null}                       | ${null}
+    ${undefined}                  | ${null}
+  `('returns $expected given $string', ({ string, expected }) => {
+    expect(newDateAsLocaleTime(string)).toEqual(expected);
+  });
+});