Created new dropdown component to select relative or absolute date ranges

test/utils/dates/DateRangeRow.test.tsx

@@ -1,6 +1,6 @@
 import { shallow, ShallowWrapper } from 'enzyme';
-import DateRangeRow from '../../src/utils/DateRangeRow';
-import DateInput from '../../src/utils/DateInput';
+import DateRangeRow from '../../../src/utils/dates/DateRangeRow';
+import DateInput from '../../../src/utils/DateInput';
 
 describe('<DateRangeRow />', () => {
   let wrapper: ShallowWrapper;

test/utils/dates/types/index.test.ts

@@ -0,0 +1,88 @@
+import moment from 'moment';
+import {
+  DateInterval,
+  dateRangeIsEmpty,
+  intervalToDateRange,
+  rangeIsInterval,
+  rangeOrIntervalToString,
+} from '../../../../src/utils/dates/types';
+
+describe('date-types', () => {
+  describe('dateRangeIsEmpty', () => {
+    test.each([
+      [ undefined, true ],
+      [{}, true ],
+      [{ startDate: null }, true ],
+      [{ endDate: null }, true ],
+      [{ startDate: null, endDate: null }, true ],
+      [{ startDate: undefined }, true ],
+      [{ endDate: undefined }, true ],
+      [{ startDate: undefined, endDate: undefined }, true ],
+      [{ startDate: undefined, endDate: null }, true ],
+      [{ startDate: null, endDate: undefined }, true ],
+      [{ startDate: moment() }, false ],
+      [{ endDate: moment() }, false ],
+      [{ startDate: moment(), endDate: moment() }, false ],
+    ])('proper result is returned', (dateRange, expectedResult) => {
+      expect(dateRangeIsEmpty(dateRange)).toEqual(expectedResult);
+    });
+  });
+
+  describe('rangeIsInterval', () => {
+    test.each([
+      [ undefined, false ],
+      [{}, false ],
+      [ 'today' as DateInterval, true ],
+      [ 'yesterday' as DateInterval, true ],
+    ])('proper result is returned', (range, expectedResult) => {
+      expect(rangeIsInterval(range)).toEqual(expectedResult);
+    });
+  });
+
+  describe('rangeOrIntervalToString', () => {
+    test.each([
+      [ undefined, undefined ],
+      [ 'today' as DateInterval, 'Today' ],
+      [ 'yesterday' as DateInterval, 'Yesterday' ],
+      [ 'last7Days' as DateInterval, 'Last 7 days' ],
+      [ 'last30Days' as DateInterval, 'Last 30 days' ],
+      [ 'last90Days' as DateInterval, 'Last 90 days' ],
+      [ 'last180days' as DateInterval, 'Last 180 days' ],
+      [ 'last365Days' as DateInterval, 'Last 365 days' ],
+      [{}, undefined ],
+      [{ startDate: null }, undefined ],
+      [{ endDate: null }, undefined ],
+      [{ startDate: null, endDate: null }, undefined ],
+      [{ startDate: undefined }, undefined ],
+      [{ endDate: undefined }, undefined ],
+      [{ startDate: undefined, endDate: undefined }, undefined ],
+      [{ startDate: undefined, endDate: null }, undefined ],
+      [{ startDate: null, endDate: undefined }, undefined ],
+      [{ startDate: moment('2020-01-01') }, 'Since 2020-01-01' ],
+      [{ endDate: moment('2020-01-01') }, 'Until 2020-01-01' ],
+      [{ startDate: moment('2020-01-01'), endDate: moment('2021-02-02') }, '2020-01-01 - 2021-02-02' ],
+    ])('proper result is returned', (range, expectedValue) => {
+      expect(rangeOrIntervalToString(range)).toEqual(expectedValue);
+    });
+  });
+
+  describe('intervalToDateRange', () => {
+    const now = () => moment();
+
+    test.each([
+      [ undefined, undefined, undefined ],
+      [ 'today' as DateInterval, now(), now() ],
+      [ 'yesterday' as DateInterval, now().subtract(1, 'day'), now().subtract(1, 'day') ],
+      [ 'last7Days' as DateInterval, now().subtract(7, 'day'), now() ],
+      [ 'last30Days' as DateInterval, now().subtract(30, 'day'), now() ],
+      [ 'last90Days' as DateInterval, now().subtract(90, 'day'), now() ],
+      [ 'last180days' as DateInterval, now().subtract(180, 'day'), now() ],
+      [ 'last365Days' as DateInterval, now().subtract(365, 'day'), now() ],
+    ])('proper result is returned', (interval, expectedStartDate, expectedEndDate) => {
+      const { startDate, endDate } = intervalToDateRange(interval);
+
+      expect(expectedStartDate?.format('YYYY-MM-DD')).toEqual(startDate?.format('YYYY-MM-DD'));
+      expect(expectedEndDate?.format('YYYY-MM-DD')).toEqual(endDate?.format('YYYY-MM-DD'));
+    });
+  });
+});