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fix(TimezoneSelector): Failing unit tests due to timezone change #30828

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Nov 4, 2024
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Original file line number Diff line number Diff line change
Expand Up @@ -35,10 +35,13 @@ const loadComponent = (mockCurrentTime?: string) => {
return new Promise<FC<TimezoneSelectorProps>>(resolve => {
const { default: TimezoneSelector } = module.require('./index');
resolve(TimezoneSelector);
jest.useRealTimers();
});
};

afterEach(() => {
jest.useRealTimers();
});

test('render timezones in correct order for daylight saving time', async () => {
const TimezoneSelector = await loadComponent('2022-07-01');
const onTimezoneChange = jest.fn();
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -35,7 +35,6 @@ const loadComponent = (mockCurrentTime?: string) => {
return new Promise<FC<TimezoneSelectorProps>>(resolve => {
const { default: TimezoneSelector } = module.require('./index');
resolve(TimezoneSelector);
jest.useRealTimers();
});
};

Expand All @@ -49,6 +48,10 @@ const openSelectMenu = () => {

jest.spyOn(moment.tz, 'guess').mockReturnValue('America/New_York');

afterEach(() => {
jest.useRealTimers();
});

test('use the timezone from `moment` if no timezone provided', async () => {
const TimezoneSelector = await loadComponent('2022-01-01');
const onTimezoneChange = jest.fn();
Expand Down Expand Up @@ -96,10 +99,9 @@ test('render timezones in correct order for standard time', async () => {
await waitForElementToBeRemoved(() => screen.queryByLabelText('Loading'));
openSelectMenu();
const options = await getSelectOptions();
expect(options[0]).toHaveTextContent('GMT -04:00 (Eastern Daylight Time)');
expect(options[0]).toHaveTextContent('GMT -05:00 (Eastern Standard Time)');
expect(options[1]).toHaveTextContent('GMT -11:00 (Pacific/Pago_Pago)');
expect(options[2]).toHaveTextContent('GMT -10:00 (Hawaii Standard Time)');
expect(options[3]).toHaveTextContent('GMT -09:30 (Pacific/Marquesas)');
});

test('can select a timezone values and returns canonical timezone name', async () => {
Expand All @@ -116,8 +118,8 @@ test('can select a timezone values and returns canonical timezone name', async (

const searchInput = screen.getByRole('combobox');
// search for mountain time
await userEvent.type(searchInput, 'mou', { delay: 10 });
const findTitle = 'GMT -06:00 (Mountain Daylight Time)';
await userEvent.type(searchInput, 'mou');
const findTitle = 'GMT -07:00 (Mountain Standard Time)';
const selectOption = await screen.findByTitle(findTitle);
userEvent.click(selectOption);
expect(onTimezoneChange).toHaveBeenCalledTimes(1);
Expand Down
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