test: extDB offset corrections

tests/playwright/tests/db/timezone.spec.ts

@@ -447,7 +447,10 @@ test.describe('External DB - DateTime column', async () => {
   const expectedDisplayValues = {
     pg: {
       DatetimeWithoutTz: ['2023-04-27 10:00', '2023-04-27 10:00'],
-      DatetimeWithTz: ['2023-04-27 10:00', getDateTimeInLocalTimeZone('2023-04-27 04:30:00+00:00')],
+      DatetimeWithTz: [
+        getDateTimeInLocalTimeZone('2023-04-27 10:00:00+00:00'),
+        getDateTimeInLocalTimeZone('2023-04-27 04:30:00+00:00'),
+      ],
     },
     sqlite: {
       // without +HH:MM information, display value is same as inserted value
@@ -525,6 +528,10 @@ test.describe('External DB - DateTime column', async () => {
   test('Verify display value, UI insert, API response', async () => {
     // get timezone offset
     const timezoneOffset = new Date().getTimezoneOffset();
+    const hours = Math.floor(Math.abs(timezoneOffset) / 60);
+    const minutes = Math.abs(timezoneOffset % 60);
+    const sign = timezoneOffset <= 0 ? '+' : '-';
+    const formattedOffset = `${sign}${hours.toString().padStart(2, '0')}:${minutes.toString().padStart(2, '0')}`;
 
     await dashboard.treeView.openBase({ title: 'datetimetable' });
     await dashboard.treeView.openTable({ title: 'MyTable' });
@@ -587,38 +594,42 @@ test.describe('External DB - DateTime column', async () => {
     let dateTimeWithoutTz = records.list.map(record => record.DatetimeWithoutTz);
     let dateTimeWithTz = records.list.map(record => record.DatetimeWithTz);
 
-    const expectedDateTimeWithoutTz = [
-      'Thu, 27 Apr 2023 10:00:00 GMT',
-      'Thu, 27 Apr 2023 10:00:00 GMT',
-      'Thu, 27 Apr 2023 10:00:00 GMT',
+    let expectedDateTimeWithoutTz = [];
+    let expectedDateTimeWithTz = [];
+
+    if (isSqlite(context)) {
+      expectedDateTimeWithoutTz = [
+        '2023-04-27 10:00:00',
+        '2023-04-27 10:00:00+05:30',
+        `2023-04-27 10:00:00${formattedOffset}`,
       ];
-    const expectedDateTimeWithTz = [
-      'Thu, 27 Apr 2023 10:00:00 GMT',
-      'Thu, 27 Apr 2023 10:00:00 GMT',
-      'Thu, 27 Apr 2023 10:00:00 GMT',
+      expectedDateTimeWithTz = [
+        '2023-04-27 10:00:00',
+        '2023-04-27 10:00:00+05:30',
+        `2023-04-27 10:00:00${formattedOffset}`,
       ];
-
-    if (isMysql(context)) {
-      expectedDateTimeWithoutTz[1] = 'Thu, 27 Apr 2023 04:30:00 GMT';
-      expectedDateTimeWithTz[1] = 'Thu, 27 Apr 2023 04:30:00 GMT';
+    } else if (isPg(context)) {
+      expectedDateTimeWithoutTz = ['2023-04-27 10:00:00', '2023-04-27 10:00:00', '2023-04-27 10:00:00'];
+      expectedDateTimeWithTz = [
+        '2023-04-27T10:00:00.000Z',
+        '2023-04-27T04:30:00.000Z',
+        new Date('2023-04-27T10:00:00').toISOString(),
+      ];
+    } else if (isMysql(context)) {
+      expectedDateTimeWithoutTz = ['2023-04-27 10:00:00', '2023-04-27 04:30:00', '2023-04-27 10:00:00'];
+      expectedDateTimeWithTz = ['2023-04-27 10:00:00', '2023-04-27 04:30:00', '2023-04-27 10:00:00'];
     }
 
-    // convert to ISO string, skip seconds part or reset seconds to 00
-    dateTimeWithoutTz = dateTimeWithoutTz.map(dateTimeStr => {
-      const dateObj = new Date(dateTimeStr);
-      dateObj.setSeconds(0);
-      dateObj.setMinutes(dateObj.getMinutes() - timezoneOffset);
-      return dateObj.toUTCString();
-    });
-    dateTimeWithTz = dateTimeWithTz.map(dateTimeStr => {
-      const dateObj = new Date(dateTimeStr);
-      dateObj.setSeconds(0);
-      dateObj.setMinutes(dateObj.getMinutes() - timezoneOffset);
-      return dateObj.toUTCString();
-    });
+    // reset seconds to 00 using string functions in dateTimeWithoutTz
+    dateTimeWithoutTz = dateTimeWithoutTz.map(
+      dateTimeString => dateTimeString.substring(0, 17) + '00' + dateTimeString.substring(19)
+    );
+    dateTimeWithTz = dateTimeWithTz.map(
+      dateTimeString => dateTimeString.substring(0, 17) + '00' + dateTimeString.substring(19)
+    );
 
-    // console.log(dateTimeWithoutTz);
-    // console.log(dateTimeWithTz);
+    // console.log('dateTimeWithoutTz', dateTimeWithoutTz);
+    // console.log('dateTimeWithTz', dateTimeWithTz);
 
     expect(dateTimeWithoutTz).toEqual(expectedDateTimeWithoutTz);
     expect(dateTimeWithTz).toEqual(expectedDateTimeWithTz);