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import {
sortDataByField,
dateFormatLocalTimeZoneMMDDYYYY,
dateFormatLocalTimeZoneYYYYMMDD,
getTicks,
getTicksData
} from 'utils/DateTimeChartUtil.js';
describe('DateTimeChartUtil Tests', () => {
it('sortDataByField', () => {
let initialData = [
{word: 'plum', number: 2},
{word: 'apple', number: 3},
{word: 'banana', number: 1}
];
sortDataByField(initialData, 'number');
expect(initialData[0]['number']).toBe(1);
expect(initialData[0]['word']).toBe('banana');
expect(initialData[1]['number']).toBe(2);
expect(initialData[1]['word']).toBe('plum');
expect(initialData[2]['number']).toBe(3);
expect(initialData[2]['word']).toBe('apple');
});
it('dateFormatLocalTimeZoneMMDDYYYY', () => {
const timestamp = Date.parse('Mon, 25 Dec 1995 13:30:00 GMT');
let formattedDate = dateFormatLocalTimeZoneMMDDYYYY(timestamp);
expect(formattedDate).toBe('12/25/1995');
});
it('dateFormatLocalTimeZoneYYYYMMDD', () => {
const timestamp = Date.parse('Mon, 25 Dec 1995 13:30:00 GMT');
let formattedDate = dateFormatLocalTimeZoneYYYYMMDD(timestamp);
expect(formattedDate).toBe('1995-12-25');
});
it('getTicks', () => {
const timestamps = [
{timestamp: 1521604800000, date: 'Thu, 21 Mar 2018 04:00:00 GMT'},
{timestamp: 1521777600000, date: 'Thu, 23 Mar 2018 04:00:00 GMT'},
{timestamp: 1521950400000, date: 'Thu, 25 Mar 2018 04:00:00 GMT'},
{timestamp: 1522296000000, date: 'Thu, 29 Mar 2018 04:00:00 GMT'}
];
let ticksPerDay = getTicks(timestamps, 'timestamp');
// expect 1 tick (timestamp) for each day between March 22 - March 29
// CHANGED: expect(ticksPerDay.length).toBe(9);
// d3 scale domain().range([0,1]) will generate stray tick marks at the beginning and end of the domain.
// You can use scale.nice() to extend the domain so that it starts and ends on round values. (https://observablehq.com/@d3/d3-scaletime)
// TODO: decide if this is accepted behaviour or not
expect(ticksPerDay.length).toBe(8);
});
it('getTicks - empty data', () => {
const timestamps = [];
let ticksPerDay = getTicks(timestamps, 'timestamp');
expect(ticksPerDay.length).toBe(0);
});
it('getTicksData', () => {
const timestamps = [
{timestamp: 1521604800000, date: 'Thu, 21 Mar 2018 04:00:00 GMT'},
{timestamp: 1521777600000, date: 'Thu, 23 Mar 2018 04:00:00 GMT'},
{timestamp: 1521950400000, date: 'Thu, 25 Mar 2018 04:00:00 GMT'},
{timestamp: 1522296000000, date: 'Thu, 29 Mar 2018 04:00:00 GMT'}
];
let ticksPerDay = getTicks(timestamps, 'timestamp');
let mergedData = getTicksData(timestamps, ticksPerDay, 'timestamp');
// expect original 4 objects plus 4 additional objects for the missing days
// (4 additional objects will only have timestamp attribute, no date attribute)
// CHANGED: expect(mergedData.length).toBe(9);
// same as above, d3js scale is generating another than expected array
// TODO: decide if this is accepted behaviour or not
expect(mergedData.length).toBe(12);
expect(mergedData[0]['timestamp']).toBe(1521604800000);
expect(mergedData[0]['date']).toBe('Thu, 21 Mar 2018 04:00:00 GMT');
expect(mergedData[1]['timestamp']).toBe(1521777600000);
expect(mergedData[1]['date']).toBe('Thu, 23 Mar 2018 04:00:00 GMT');
expect(mergedData[2]['timestamp']).toBe(1521950400000);
expect(mergedData[2]['date']).toBe('Thu, 25 Mar 2018 04:00:00 GMT');
expect(mergedData[3]['timestamp']).toBe(1522296000000);
expect(mergedData[3]['date']).toBe('Thu, 29 Mar 2018 04:00:00 GMT');
expect(mergedData[4]['timestamp']).toBeTruthy();
expect(mergedData[4]['date']).toBeUndefined();
expect(mergedData[5]['timestamp']).toBeTruthy();
expect(mergedData[5]['date']).toBeUndefined();
expect(mergedData[6]['timestamp']).toBeTruthy();
expect(mergedData[6]['date']).toBeUndefined();
expect(mergedData[7]['timestamp']).toBeTruthy();
expect(mergedData[7]['date']).toBeUndefined();
});
it('getTicksData - empty data', () => {
const timestamps = [];
let ticksPerDay = getTicks(timestamps, 'timestamp');
let mergedData = getTicksData(timestamps, ticksPerDay, 'timestamp');
expect(mergedData.length).toBe(0);
});
})
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