openrosa-xpath-evaluator/test/integration/openrosa-xpath/decimal-date-time.spec.js

Wrapper for browsers' XPath evaluator with added support for OpenRosa extensions.

const {
    assertThrow,
    assertNumberValue,
    assertNumberRounded,
} = require('../helpers');

describe('#decimal-date-time()', () => {
    describe('with full date + timestamp', () => {
        [
            ['decimal-date-time("1970-01-01T00:00:00Z")', 0],
            ['decimal-date-time("1970-01-02T00:00:00Z")', 1],
            ['decimal-date-time("1969-12-31T00:00:00Z")', -1],
        ].forEach(([expr, expectedDaysSinceEpoch]) => {
            it(`should convert ${expr} into ${expectedDaysSinceEpoch}`, () => {
                assertNumberValue(expr, expectedDaysSinceEpoch);
            });
        });
    });

    describe('with date only', () => {
        [
            ['decimal-date-time("1970-01-01")', 0.291667],
            ['decimal-date-time("1970-01-02")', 1.291667],
            ['decimal-date-time("1969-12-31")', -0.708333],
            ['decimal-date-time("2021-10-06")', 18906.291667],
        ].forEach(([expr, expectedDaysSinceEpoch]) => {
            it(`should convert ${expr} into ${expectedDaysSinceEpoch}`, () => {
                assertNumberRounded(expr, expectedDaysSinceEpoch, 1000000);
            });
        });
    });

    describe('with no offset specified', () => {
        [
            ['decimal-date-time("1970-01-01T00:00:00")', 0.291667],
            ['decimal-date-time("1970-01-02T00:00:00.000")', 1.291667],
            ['decimal-date-time("1969-12-31T00:00:00")', -0.708333],
            ['decimal-date-time("2021-10-06T00:00:00.000")', 18906.291667],
        ].forEach(([expr, expectedDaysSinceEpoch]) => {
            it(`should convert ${expr} into ${expectedDaysSinceEpoch}`, () => {
                assertNumberRounded(expr, expectedDaysSinceEpoch, 1000000);
            });
        });
    });

    it('with invalid args, throws an error', () => {
        assertThrow('decimal-date-time("1970-01-01T00:00:00.000Z", 2)');
    });

    it('different format', () => {
        // assertNumberRounded('decimal-date-time("2018-04-24T15:30:00.000+06:00")', 17645.396, 1000);
        assertNumberValue(
            'decimal-date-time("2018-04-24T15:30:00.000+06:00")',
            17645.395833333332
        );
    });
});