Test the date module.

thewca · Aug 18, 2019 · 1a7175b · 1a7175b
1 parent 2eeb254
commit 1a7175b
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diff --git a/server/utils/date.js b/server/utils/date.js
@@ -1,5 +1,6 @@
 const dateToString = date => {
-  return date.toISOString().slice(0, 10);
+  const utcDate = new Date(date.getTime() - date.getTimezoneOffset() * 60000);
+  return utcDate.toISOString().slice(0, 10);
 };
 
 const addDays = (dateString, days) => {

diff --git a/server/utils/tests/date.test.js b/server/utils/tests/date.test.js
@@ -0,0 +1,14 @@
+const { dateToString, addDays } = require('../date');
+
+describe('dateToString', () => {
+  test('returns date in yyyy-mm-dd format', () => {
+    expect(dateToString(new Date(2014, 4, 15))).toEqual('2014-05-15');
+  });
+});
+
+describe('addDays', () => {
+  test('returns date in yyyy-mm-dd format after adding the given number of days', () => {
+    expect(addDays('2014-02-15', 2)).toEqual('2014-02-17');
+    expect(addDays('2014-01-30', 2)).toEqual('2014-02-01');
+  });
+});