1 files changed, 92 insertions, 0 deletions
diff --git a/src/utils/DateTimeChartUtil.test.js b/src/utils/DateTimeChartUtil.test.js
new file mode 100644
index 0000000..b1e9d69
--- /dev/null
+++ b/src/utils/DateTimeChartUtil.test.js
@@ -0,0 +1,92 @@
+import {
+  sortDataByField,
+  dateFormatLocalTimeZoneMMDDYYYY,
+  dateFormatLocalTimeZoneYYYYMMDD,
+  getTicks,
+  getTicksData
+} from './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: 1521691200000, date: 'Thu, 22 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
+    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: 1521691200000, date: 'Thu, 22 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)
+    expect(mergedData.length).toBe(8);
+    expect(mergedData[0]['timestamp']).toBe(1521691200000);
+    expect(mergedData[0]['date']).toBe('Thu, 22 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);
+  });
+})